1. INTRODUCTION Manual / Checklist
1.1 How This Manual Is Organized

2. FEATURES

2.1 The ASUS CUV4X-V
The ASUS CUV4X-V motherboard is carefully designed for the demanding PC user who wants advanced features processed by the fastest processors.

2.1.1 Specifications

Latest Processor Support
Intel Pentium III Intel Pentium III Intel Celeron Intel Celeron VIA Cyrix III 133MHz FSB 100MHz FSB 66MHz FSB 66MHz FSB 133MHz FSB Coppermine core Coppermine core Coppermine core Mendocino core FC-PGA FC-PGA FC-PGA PPGA PPGA
2. FEATURES Specifications
North Bridge System Chipset: Features the VIA VT8605 system controller or VIA ProSavage PM133 integrated graphics core logic chipset with support for AGP 4x mode(integrated S3 Savage4); 133/100/66MHz Front Side Bus (FSB); and 133MHz (PC133/VCM) memory bus. South Bridge System Chipset: VIA VT82C686A PCIset with PCI Super I/O integrated peripheral controller supports UltraDMA/66/33; AC97 audio; MC-97 modem; and four USB ports. PC133 SDRAM / VC133 VCM / HSDRAM Support: Equipped with three Dual Inline Memory Module (DIMM) sockets to support Intel PC133/PC100compliant (8, 16, 32, 64, 128, 256, or 512MB), NECs VC133-compliant Virtual Channel (VC) SDRAM, or Enhanced Memory Systems High-speed DRAMs (HSDRAMs) up to 1.5GB. VC SDRAM and HSDRAM are new DRAM core architectures that dramatically improves the memory systems ability to service, among others, high multimedia requirements. JumperFree Mode: Allows processor settings and easy overclocking of frequency and Vcore voltage all through BIOS setup when JumperFree mode is enabled. Easy-to-use DIP switches instead of jumpers are included to allow manual adjustment of the processors external frequency. Multi-Cache: Supports processors with 512, 256, 128, or 0KB Pipelined Burst Level 2 cache. AGP Pro Slot: Supports AGP/AGP Pro cards for high performance, component level interconnection targeted at 3D graphical applications supporting 133MHz 4X mode. UltraDMA/66 Support: Comes with an onboard PCI Bus Master IDE controller with two connectors that support four IDE devices on two channels. Supports UltraDMA/66, UltraDMA/33, PIO Modes 3 & 4 and Bus Master IDE DMA Mode 2, and Enhanced IDE devices, such as DVD-ROM, CD-ROM, CDR/RW, LS-120, and Tape Backup drives. Wake-On-LAN Connector: Supports Wake-On-LAN activity through an optional ASUS PCI-L101 10/100 Fast Ethernet PCI card (see 7. Appendix). Wake-On-Ring Connector: Supports Wake-On-Ring activity through a PCI modem card that supports a WOR connector. PC Health Monitoring: Provides an easy way to examine and manage system status information, such as CPU and systerm voltages, temperatures, and fan status through the onboard hardware ASUS ASIC and the bundled ASUS PC Probe.
SMBus: Features the System Management Bus interface, which is used to physically transport commands and information between SMBus devices. PCI/ISA/AMR Expansion Slots: Provides five 32-bit PCI (Rev. 2.2) expansion slots, which can support Bus Master PCI cards, such as SCSI or LAN cards (PCI supports up to 133MB/s maximum throughput), one 16-bit ISA expansion slot, and one Audio Modem Riser (AMR) slot, which supports a very affordable audio and/or modem riser card. (Only an ISA-side AMR card can be used.) Super Multi-I/O: Provides two high-speed UART compatible serial ports and one parallel port with EPP and ECP capabilities. UART2 can also be directed from COM2 to the Infrared Module for wireless connections. Enhanced ACPI & Anti-Boot Virus Protection: Programmable BIOS (Flash EEPROM), offering enhanced ACPI for Windows 98 compatibility, built-in firmware-based virus protection, and autodetection of most devices for virtually automatic setup. IrDA: Supports an optional infrared port module for wireless interface. Concurrent PCI: Concurrent PCI allows multiple PCI transfers from PCI master busses to the memory and processor. Smart BIOS: 2Mb firmware provides Vcore and CPU/SDRAM frequency adjustments, boot block write protection, and HD/SCSI/MO/ZIP/CD/Floppy boot selection. Power supply is autodetected to enable/disable suspend-to-RAM, eliminating the need to make jumper adjustments. Integrated Infrared Support: Integrated IR supports an optional remote control package for wireless interfacing with external peripherals, personal gadgets, or an optional remote controller. Desktop Management Interface (DMI): Supports DMI through BIOS, which allows hardware to communicate within a standard protocol creating a higher level of compatibility. (Requires DMI-enabled components.)

Motherboard Settings
1) 2) 3) 4) 1) 2) 3) 4) 5) 6) 1) 2) 3) 4) 5) 6) 7) 8) 9) 10) 11) 12) 13) 14) 15) 16) 17) 18) 19) 20) 21) JEN VIO DIP_SW 58 DIP_SW 1-4 System Memory DIMM1/2/3 Socket 370 PCI1/2/3/4/5 AGP Pro AMR p. 18 p. 19 p. 20 p. 21 p.23 p.24 p.25 p.27 p.29 p.30 JumperFree Mode Setting (Disable/Enable) I/O Voltage Setting CPU External Frequency Selection CPU Core:BUS Frequency Multiple Selection System Memory Support DIMM Memory Module Support CPU Support 32-bit PCI Bus Expansion Slots Accelerated Graphics Port Pro Slot Audio Modem Riser Slot PS/2 Mouse Port Connector (6 pin-female) PS/2 Keyboard Port Connector (6-pin female) Universal Serial Bus Connectors 1 & 2 (Two 4-pin female) Serial Port Connector (9-pin /10-1 pin male) Monitor Output Connector (15-pin female) Parallel Port Connector (25-pin female) Game/MIDI Connector (15-pin female) (optional) Audio Port Connectors (Three 1/8 female) (optional) IDE Connectors (Two 40-1 pins) Floppy Disk Drive Port Connector (34 pins) Wake-On-LAN Connector (3 pins) Wake-On-Ring Connector (2 pins) Chassis, Power Supply, CPU Fan Connectors (Three 3 pins) USB Header (10-1 pins) LCD/TV Headers (18-1 pins/18 pins) Infrared Module Connector (5 pins) ASUS iPanel Connector (24-1 pins, 10-1 pins) ASUS iPanel Audio Connector (10-1 pins) Internal Audio Connectors (Four 4-pin) Headphone True-Level LineOut Header (3 pins) Internal Microphone Connector (3 pins) continued.

Expansion Slots/Sockets

PS2KBMS p.31 PS2KBMS p.31 USB p.32 COM1/COM2 p.32 VGA p.32 PRINTER p.33 GAME_AUDIO p.33 GAME_AUDIO p.33 PRIMARY IDE p.34 SECONDARY IDE FLOPPY p. 34 WOL_CON p. 35 WOR p. 35 PWR_, CPU_,CHA_FANp. 36 USB2 p. 36 LCDTV/LCDTV0 p. 37 IR p. 37 AFPANEL/IR_CON p. 38 AAPANEL p. 38 CD_IN, AUX, VIDEO p. 39 MODEM HPHONE p. 39 MIC2 p. 39
3. H/W SETUP Layout Contents

Connectors

22) 23) 24) 25) 26) 27) 28) 29) 30) 31) 32) JTPWR ATXPWR SMB CHASSIS IDELED SPEAKER (PANEL) PWR.LED (PANEL) MSG.LED (PANEL) RESET (PANEL) PWR.SW (PANEL) SMI (PANEL) p. 40 p. 40 p. 41 p. 41 p. 41 p. 42 p. 42 p. 42 p. 42 p. 42 p. 42 Power Supply Thermal Sensor Connector (2 pins) ATX Power Supply Connector (20 pins) SMBus Connector (5-1 pins) Chassis Intrusion Lead (4-1 pins) IDE Activity LED (2 pins) System Warning Speaker Connector (4 pins) System Power LED Lead (3 pins) System Message LED (2 pins) Reset Switch Lead (2 pins) ATX / Soft-Off Switch Lead (2 pins) System Management Interrupt Lead (2 pins)
3.3 Hardware Setup Procedure
Before using your computer, you must complete the following steps: 1. Check Motherboard Settings 2. Install Memory Modules 3. Install the Central Processing Unit (CPU) 4. Install Expansion Cards 5. Connect Ribbon Cables, Panel Wires, and Power Supply 6. Setup the BIOS Software

3.4 Motherboard Settings

This section explains in detail how to change your motherboards function settings through the use of switches and/or jumpers. WARNING! Computer motherboards and expansion cards contain very delicate Integrated Circuit (IC) chips. To protect them against damage from static electricity, you should follow some precautions whenever you work on your computer. 1. Unplug your computer when working on the inside. 2. Use a grounded wrist strap before handling computer components. If you do not have one, touch both of your hands to a safely grounded object or to a metal object, such as the power supply case. 3. Hold components by the edges and try not to touch the IC chips, leads or connectors, or other components. 4. Place components on a grounded antistatic pad or on the bag that came with the component whenever the components are separated from the system. 5. Ensure that the ATX power supply is switched off before you plug in or remove the ATX power connector on the motherboard. WARNING! Make sure that you unplug your power supply when adding or removing system components. Failure to do so may cause severe damage to your motherboard, peripherals, and/or components. The onboard LED when lit acts as a reminder that the system is in suspend or soft-off mode and not powered OFF.

ON Standby Power

OFF Powered Off

CUV4X-V Onboard LED

Motherboard Features Settings (DIP Switches - DIP_SW) The motherboards onboard functions are adjusted through the DIP switches. The white block represents the switchs position. The example below shows all the switches in the OFF position.
< Frequency Multiple < Frequency Multiple < Frequency Multiple < Frequency Multiple < Frequency Selection < Frequency Selection < Frequency Selection < Frequency Selection

ON OFF

CUV4X-V DIP Switches
CUV4X-V JumperFree Mode Setting
NOTE: In JumperFree mode, all dip switches (DIP_SW) must be set to OFF.
3. H/W SETUP Motherboard Settings
1) JumperFree Mode (JEN) This jumper allows you to enable or disable the JumperFree mode. The JumperFree mode allows processor settings to be made through the BIOS setup (see 4.4 Advanced Menu). Setting JEN Enable (JumperFree) [2-3] (default) Disable (Jumper) [1-2]

DIP_SW

Jumper Mode
JumperFree Mode (Default)
2) I/O Voltage Setting (VIO) VIO allows you to select the voltage supplied to the DRAM, chipset, AGP, PCI, and the CPUs I/O buffer. The default voltage (3.40V) should be used unless processor overclocking requires a higher voltage. Setting 3.30 Volt 3.40 Volt TEST VIO [1-2] [2-3] (default) [3-4]

3.30 Volt

3.40 Volt

CUV4X-V VIO Setting

WARNING! Using a higher voltage may help when overclocking but may result in the shortening of your computer components life. It is strongly recommended that you leave this setting on its default.
3) CPU External Frequency Selection (DIP_SW Switches 58) This option tells the clock generator what frequency to send to the CPU, DRAM, and the PCI bus. This allows the selection of the CPUs External frequency (or BUS Clock). The BUS Clock multiplied by the Frequency Multiple equals the CPUs Internal frequency (the advertised CPU speed).

ON ON ON 7 8

CPU PCI

66MHz 33MHz

68MHz 34MHz

75.0MHz 37.5MHz

80MHz 40MHz

83.3MHz 41.6MHz

100MHz 33MHz

103.0MHz 34.3MHz

105MHz 35MHz

112.0MHz 37.3MHz

ON 7 8
CUV4X-V CPU External Frequency Selection

115.0MHz 38.3MHz

120MHz 40MHz

124MHz 31MHz

133MHz 33MHz

140MHz 35MHz

88 Pins

60 Pins

20 Pins

CUV4X-V 168-Pin DIMM Sockets
The DIMMs must be 3.3Volt unbuffered SDRAMs. To determine the DIMM type, check the notches on the DIMMs (see figure below).
168-Pin DIMM Notch Key Definitions (3.3V)
DRAM Key Position Unbuffered RFU Buffered
Voltage Key Position 5.0V 3.3V Reserved
The notches on the DIMM will shift between left, center, or right to identify the type and also to prevent the wrong type from being inserted into the DIMM slot on the motherboard. You must tell your retailer the correct DIMM type before purchasing. This motherboard supports four clock signals per DIMM.
3.6 Central Processing Unit (CPU)
The motherboard provides a ZIF Socket 370. The CPU that came with the motherboard should have a fan attached to it to prevent overheating. If this is not the case, then purchase a fan before you turn on your system. WARNING! Be sure that there is sufficient air circulation across the processors heatsink by regularly checking that your CPU fan is working. Without sufficient circulation, the processor could overheat and damage both the processor and the motherboard. You may install an auxiliary fan, if necessary. To install a CPU, first turn off your system and remove its cover. Locate the ZIF socket and open it by first pulling the lever sideways away from the socket then upwards to a 90-degree angle. Insert the CPU with the correct orientation as shown. The notched corner should point towards the end of the lever. Because the CPU has a corner pin for two of the four corners, the CPU will only fit in the orientation as shown. The picture is for reference only; you should have a CPU fan that covers the face of the CPU. With the added weight of the CPU fan, no force is required to insert the CPU. Once completely inserted, close the sockets lever while holding down the CPU. NOTE: Do not forget to set the correct Bus Frequency and Multiple (frequency multiple setting is available only on unlocked processors) for your Socket 370 processor or else boot-up may not be possible. Socket 370 processors provide internal thermal sensing so that a socket mounted thermal resistor is not needed. CAUTION! Be careful not to scrape the motherboard when mounting a clampstyle processor fan or else damage may occur to the motherboard.

COM 1 Serial Port (9-pin male)
VGA Monitor (15-pin female)
6) Parallel Port Connector (Burgundy 25-pin PRINTER) You can enable the parallel port and choose the IRQ through Onboard Parallel Port (see 4.4.2 I/O Device Configuration). NOTE: Serial printers must be connected to the serial port.
Parallel (Printer) Port (25-pin female)
Joystick/MIDI (15-pin female)
8) Audio Port Connectors (Three 1/8 GAME_AUDIO) (optional) Line Out (lime) can be connected to headphones or preferably powered speakers. Line In (light blue) allows tape players or other audio sources to be recorded by your computer or played through the Line Out (lime). Mic (pink) allows microphones to be connected for inputting voice.
Line Out Line In Mic 1/8" Stereo Audio Connectors
7) Game/MIDI Connector (Gold 15-pin GAME_AUDIO) (optional) You may connect game joysticks or game pads to this connector for playing games. Connect MIDI devices for playing or editing professional audio.
9) Primary (Blue) / Secondary IDE Connectors (40-1 pin IDE1/IDE2) These connectors support the provided UltraDMA/66 IDE hard disk ribbon cable. Connect the cables blue connector to the motherboards primary (recommended) or secondary IDE connector, and then connect the gray connector to your UltraDMA/66 slave device (hard disk drive) and the black connector to your UltraDMA/66 master device. It is recommended that non-UltraDMA/66 devices be connected to the secondary IDE connector. If you install two hard disks, you must configure the second drive to Slave mode by setting its jumper accordingly. Refer to your hard disk documentation for the jumper settings. BIOS now supports specific device bootup (see 4.4.1 Advanced CMOS Setup). (Pin 20 is removed to prevent inserting in the wrong orientation when using ribbon cables with pin 20 plugged). If you have more than two UltraDMA/66 devices, you will need to purchase another UltraDMA/66 cable. NOTE: The hole near the blue connector on the UltraDMA/66 cable is intentional. TIP: You may configure two hard disks to be both Masters with two ribbon cables one for the primary IDE connector and another for the secondary IDE connector. You may install one operating system on an IDE drive and another on a SCSI drive and select the boot disk through 4.4.1 Advanced CMOS Setup.
CUV4X-V Floppy Disk Drive Connector
10) Floppy Disk Drive Connector (34-1 pin FLOPPY) This connector supports the provided floppy drive ribbon cable. After connecting the single end to the board, connect the two plugs on the other end to the floppy drives. (Pin 5 is removed to prevent inserting in the wrong orientation when using ribbon cables with pin 5 plugged).

USB Power USBP2 USBP2+ GND NC
USB Power USBP3 USBP3+ GND
CUV4X-V Front Panel USB Header

GND +12V Rotation

15) LCD/TV Headers (18-1 pin LCDTV / 18-pin LCDTV0) These headers require an optional LCD module for LCD output or TV-out module for TV output. Connect the LCD/TV-out module to the headers and mount the bracket to the chassis on a free expansion slot. NOTE: If both CRT and digital LCD monitors are used, the CRT will take precedence. These headers are for a digital LCD panel; an analog LCD panel comes with a 15-pin VGA cable connector to be used on the monitor connector.

LCDTV0

CUV4X-V LCD/TV Headers
16) Standard and Consumer Infrared Module Connector (5-pin IR) This connector supports an optional wireless transmitting and receiving infrared module. This module mounts to a small opening on system cases that support this feature. You must also configure the setting through UART2 Use Infrared (see 4.4.2 I/O Device Configuration) to select whether UART2 is directed for use with COM2 or IrDA. Use the five pins as shown in Back View and connect a ribbon cable from the module to the motherboards SIR connector according to the pin definitions. An optional consumer infrared (CIR) set connects to the CIR and SIR connectors simultaneously for both wireless transmitting and remote control functions through one external infrared module. Wake On PS2 KB/Mouse in 4.5.1 Power Up Control must be Enabled to use Consumer Infrared (CIR) power up.

+5V (NC) IRRX GND IRTX

Front View

Back View

IRTX GND IRRX

+5V (NC)

CUV4X-V Infrared Module Connector
17) ASUS iPanel Connector (24-1 pin AFPANEL, 10-1 IR_CON) This connector allows you to connect an optional ASUS iPanel (an easy to access drive bay with front I/O ports, status LEDs, and space reserved for a hard disk drive). If you are not using an ASUS iPanel, you can connect an optional wireless transmitting and receiving infrared module to the SIR connector or an optional consumer infrared connector set to the CIR and SIR connectors for both wireless transmitting and remote control functions through one external infrared module.
+5 V IRRX GND IRTX SMBDATA +3VSB SMBCLK LOCKKEY NC
NC GND IRRX NC GND CIRRX IRTX +5VSB CHASSIS# EXTSMI# +5V MLEDPCIRST# BATT NC

SMBus is a specific implementation of an I2C bus, which is a multidevice bus; that is, multiple chips can be connected to the same bus and each one can act as a master by initiating data transfer.

CUV4X-V SMBus Connector

NOTE: If the chassis intrusion lead is not used, a jumper cap must be placed over the pins to close the circuit.
Chassis Signal GND +5VSB_MB
CUV4X-V Chassis Open Alarm Lead
26) IDE Activity LED (2-pin IDELED) This connector supplies power to the cabinets IDE activity LED. Read and write activity by devices connected to the Primary or Secondary IDE connectors will cause the LED to light up.
TIP: If the case-mounted LED does not light, try reversing the 2-pin plug.

CUV4X-V IDE Activity LED

25) Chassis Intrusion Lead (4-1 pin CHASSIS) This lead requires an external detection mechanism, such as a chassis intrusion monitor/sensor or microswitch. The sensor is triggered when a high level signal is sent to this lead, which occurs when a panel switch or light detector is triggered.

Ground SMBDATA +5V

SMBCLK
The following PANEL illustration is used for items 2227 (below).

Speaker Connector

+5V Ground Ground SPKR

Power LED

PLED +5 V
+5 V MLED ExtSMI# Ground PWR_SW Ground ResetCon Ground

Message LED

Reset SW ATX Power Switch*

SMI Lead

* Requires an ATX power supply.
CUV4X-V System Panel Connectors
27) System Warning Speaker Connector (4-pin SPEAKER) This 4-pin connector connects to the case-mounted speaker. Two sources (LINE_OUT and SPEAKER) will allow you to hear system beeps and warnings. Only SPEAKER will allow you to hear system beeps before the integrated audio has been properly initialized. 28) System Power LED Lead (3-1 pin PWRLED) This 3-1 pin connector connects the system power LED, which lights when the system is powered on and blinks when it is in sleep mode. 29) System Message LED Lead (2-pin MSG.LED) This indicates whether a message has been received from a fax/modem. The LED will remain lit when there is no signal and blink when there is data received. This function requires an ACPI OS and driver support. 30) Reset Switch Lead (2-pin RESET) This 2-pin connector connects to the case-mounted reset switch for rebooting your computer without having to turn off your power switch. This is a preferred method of rebooting to prolong the life of the systems power supply. 31) ATX Power Switch Lead (2-pin PWRSW) The system power is controlled by a momentary switch connected to this lead. Pressing the button once will switch the system between ON and SOFT OFF. Pushing the switch while in the ON mode for more than 4 seconds will turn the system off. The system power LED shows the status of the systems power. 32) System Management Interrupt Lead (2-pin SMI) This allows the user to manually place the system into a suspend mode or Green mode, where system activity is decreased to save electricity and expand the life of certain components when the system is not in use. This 2-pin connector connects to the case-mounted suspend switch. If you do not have a switch for the connector, you may use the Turbo Switch. SMI is activated when it detects a short to open moment and therefore leaving it shorted will not cause any problems. This may require one or two presses depending on the position of the switch. Wake-up can be controlled by settings in the BIOS but the keyboard will always allow wake-up (the SMI lead cannot wake up the system). 42 ASUS CUV4X-V Users Manual

4.3 Main Menu

When the Setup program is accessed, the following screen appears:
System Time [XX:XX:XX] Sets your system to the time that you specify (usually the current time). The format is hour, minute, second. Valid values for hour, minute and second are Hour: (00 to 23), Minute: (00 to 59), Second: (00 to 59). Use the <Tab> or <Shift> + <Tab> keys to move between the hour, minute, and second fields. System Date [XX/XX/XXXX] Sets your system to the date that you specify (usually the current date). The format is month, day, year. Valid values for month, day, and year are Month: (1 to 12), Day: (1 to 31), Year: (100 year range). Use the <Tab> or <Shift> + <Tab> keys to move between the month, day, and year fields. Legacy Diskette A [1.44M, 3.5 in.], Legacy Diskette B [None] Sets the type of floppy drives installed. Configuration options: [None] [360K, 5.25 in.] [1.2M , 5.25 in.] [720K , 3.5 in.] [1.44M, 3.5 in.] [2.88M, 3.5 in.] Floppy 3 Mode Support [Disabled] This is required to support older Japanese floppy drives. Floppy 3 Mode support will allow reading and writing of 1.2MB (as opposed to 1.44MB) on a 3.5-inch diskette. Configuration options: [Disabled] [Enabled]

4. BIOS SETUP Main Menu

4.3.1 Primary & Secondary Master/Slave
Type [Auto] Select [Auto] to automatically detect an IDE hard disk drive. If automatic detection is successful, the correct values will be filled in for the remaining fields on this sub-menu. If automatic detection fails, your hard disk drive may be too old or too new. You can try updating your BIOS or enter the IDE hard disk drive parameters manually. NOTE: After the IDE hard disk drive information has been entered into BIOS, new IDE hard disk drives must be partitioned (such as with FDISK) and then formatted before data can be read from and write on. Primary IDE hard disk drives must have its partition set to active (also possible with FDISK). Other options for the Type field are: [None] - to disable IDE devices
4. BIOS SETUP Master/Slave Drives
NOTE: Before attempting to configure a hard disk drive, make sure you have the configuration information supplied by the manufacturer of the drive. Incorrect settings may cause your system to not recognize the installed hard disk. To allow the BIOS to detect the drive type automatically, select [Auto].
IMPORTANT: If your hard disk was already formatted on an older previous system, incorrect parameters may be detected. You will need to enter the correct parameters manually or use low-level format if you do not need the data stored on the hard disk. If the parameters listed differ from the ones used when the disk was formatted, the disk will not be readable. If the auto-detected parameters do not match the ones that should be used for your disk, you should enter the correct ones manually by setting [User Type HDD]. [User Type HDD]

4. BIOS SETUP Chip Configuration
SDRAM Active to Precharge Time To make changes to this field, the SDRAM Configuration field must be set to [User Define]. Read Around Write [Enabled] With the Read Around Write (RAW) feature, after the CPU issues a write command, the memory controller stores the write data in its buffer so that next time the CPU needs the data, it can provide them without accessing the SDRAM. Configuration options: [Disabled] [Enabled] CPU-DRAM Back-Back Transaction [Enabled] Configuration options: [Enabled] [Disabled] Delayed Transaction [Disabled] When [Enabled], this frees the PCI Bus when the CPU is accessing 8-bit ISA cards that normally consume about 50-60 PCI Clocks without PCI delayed transaction. Select [Disabled] for ISA cards that are not PCI 2.1 compliant. Configuration options: [Enabled] [Disabled] PCI to DRAM Prefetch [Disabled] Configuration options: [Disabled] [Enabled] Byte Merge [Disabled] To optimize the data transfer on PCI, this merges a sequence of individual memory writes (bytes or words) into a single 32-bit block of data. However, byte merging may only be done when the bytes within a data phase are in a prefetchable address range. Configuration options: [Disabled] [Enabled] AGP Capability [4X Mode] This motherboard supports the AGP 4x interface, which transfers video data at 1066MB/s. Since AGP 4x is backward-compatible, you may leave the default [4X Mode] on no matter you are using an AGP 1x or 2x video card. When set to [1X Mode], the AGP interface will only provide a peak data throughput of 266MB/s even if you are using an AGP 2x/4x card. When set to [2X Mode], the AGP interface will only provide a peak data throughput of 533MB/s even if you are using an AGP 4x card. Configuration options: [1X Mode] [2X Mode] [4X Mode] Graphics Aperture Size [64MB] The graphics aperture is a PCI memory address range that AGP video and the CPU use for graphics memory address space. Configuration options: [4MB] [8MB] [16MB] [32MB] [64MB] [128MB] [256MB]
On Chip VGA [Enabled] This motherboard is integrated with a VGA controller. To use it, leave this field on [Enabled]. If you want to use an add-on VGA card, select [Disabled]. Configuration options: [Disabled] [Enabled] VGA Shared Memory Size [16MB] This feature allows you to select the size of system memory to allocate for video memory. Configuration options: [8MB] [32MB] Video Memory Cache Mode [UC] USWC (uncacheable, speculative write combining) is a new cache technology for the video memory of the processor. It can greatly improve the display speed by caching the display data. You must set this to UC (uncacheable) if your display card cannot support this feature; otherwise your system may not boot. Configuration options: [UC] [USWC] Onboard PCI IDE Enable [Both] You can select to enable the primary IDE channel, secondary IDE channel, both, or disable both channels. Configuration options: [Both] [Primary] [Secondary] [Disabled] Memory Hole At 15M-16M [Disabled] This field allows you to reserve an address space for ISA expansion cards that require it. Setting the address space to a particular setting will make that memory space unavailable to the system. Expansion cards can only access memory up to 16MB. Configuration options: [Disabled] [Enabled]

4.5 Power Menu

The Power menu allows you to reduce power consumption. This feature turns off the video display and shuts down the hard disk after a period of inactivity.
Power Management [User Define] This option must be enabled to use any of the automatic power saving features. If this menu item is set to [Disable], power management features will not function regardless of other field settings on this menu. The [User Define] option allows you to make your own selections in the Power menu. When set to [Max Saving], system power will be conserved to its greatest amount. The Suspend Mode field will then be set to predefined value that ensures maximum power savings. This field acts as the master control for the power management modes. [Max Saving] puts the system into power saving mode after a brief period of system inactivity; [Min Saving] is almost the same as [Max Saving] except that the system inactivity period is longer; [Disable] disables the power saving features; [User Define] allows you to set power saving options according to your preference. Configuration options: [User Define] [Disable] [Min Saving] [Max Saving] IMPORTANT: Advanced Power Management (APM) should be installed to keep the system time updated when the computer enters suspend mode activated by the BIOS Power Management. For DOS environments, you need to add the statement, DEVICE=C:\DOS\POWER.EXE, to your CONFIG.SYS file. For Windows 3.x and Windows 95, you need to install Windows with the APM feature. For Windows 98 and later, APM is automatically installed. A battery and power cord icon labeled Power Management will appear in the Control Panel. Choose Advanced in the Power Management Properties dialog box. 72 ASUS CUV4X-V Users Manual

4. BIOS SETUP Power Menu

Video Off Option [Suspend -> Off ] This field determines when to activate the video off feature for monitor power management. Configuration options: [Always On] [Suspend -> Off] Video Off Method [DPMS OFF] This field defines the video off features. The DPMS (Display Power Management System) feature allows the BIOS to control the video display card if it supports the DPMS feature. [Blank Screen] only blanks the screen (use this for monitors without power management or green features. If set up in your system, your screen saver will not display with [Blank Screen] selected). [V/ H SYNC+Blank] blanks the screen and turns off vertical and horizontal scanning. Configuration options: [Blank Screen] [V/H SYNC+Blank] [DPMS Standby] [DPMS Suspend] [DPMS OFF] [DPMS Reduce ON] HDD Power Down [Disabled] Shuts down any IDE hard disk drives in the system after a period of inactivity as set in this user-configurable field. This feature does not affect SCSI hard drives. Configuration options: [Disabled] [1 Min] [2 Min] [3 Min].[15 Min] Suspend-to-RAM Capability [Disabled] Suspend-to-RAM (STR) is an energy-saving feature. In Suspend-to-RAM state, all devices on the computer are turned off, except for the system RAM. Thus, the PC consumes less than 5 Watts of power. Select [Enabled] if your power supply can supply at least 720mA on the +5VSB lead to support the STR function. If the expansion cards you use on the motherboard do not support the STR function, you must leave this field on the default setting [Disabled]. Configuration options: [Enabled] [Disabled] Suspend Mode [Disabled] Sets the time period before the system goes into suspend mode. Configuration options: [Disabled] [30 Sec] [1 Min] [2 Min].[1 Hour] PWR Button < 4 Secs [Soft Off] When set to [Soft off], the ATX switch can be used as a normal system power-off button when pressed for less than 4 seconds. [Suspend] allows the button to have a dual function where pressing less than 4 seconds will place the system in sleep mode. Regardless of the setting, holding the ATX switch for more than 4 seconds will power off the system. Configuration options: [Soft off] [Suspend]

4. BIOS SETUP Hardware Monitor

4.6 Boot Menu

Boot Sequence
The Boot menu allows you to select among the four possible types of boot devices listed using the up and down arrow keys. By using the <+> or <Space> key, you can promote devices and by using the <-> key, you can demote devices. Promotion or demotion of devices alters the priority which the system uses to search for a boot device on system power up. Configuration fields include Removable Devices, IDE Hard Drive, ATAPI CD-ROM, and Other Boot Device. Removable Device [Legacy Floppy] Configuration options: [Disabled] [Legacy Floppy] [LS120] [ZIP-100] [ATAPI MO] IDE Hard Drive This field allows you to select which IDE hard disk drive to use in the boot sequence. Pressing [Enter] will show the product IDs of all connected IDE hard disk drives. ATAPI CD-ROM This field allows you to select which ATAPI CD-ROM drive to use in the boot sequence. Pressing [Enter] will show the product IDs of all your connected ATAPI CD-ROM drives. Other Boot Device Select [INT18 Device (Network)] Configuration options: [Disabled] [SCSI Boot Device] [INT18 Device (Network)] [LANDesk (R) Service Agent] ASUS CUV4X-V Users Manual 77

4. BIOS SETUP Boot Menu

Plug & Play O/S [No] This field allows you to use a Plug-and-Play (PnP) operating system to configure the PCI bus slots instead of using the BIOS. When [Yes] is selected, interrupts may be reassigned by the OS. When a non-PnP OS is installed or you want to prevent reassigning of interrupt settings, select the default setting of [No]. Configuration options: [No] [Yes] Reset Configuration Data [No] The Extended System Configuration Data (ESCD) contain information about non-PnP devices. It can also hold the complete record of how the system was configured the last time it was booted. Select [Yes] only if you want to clear these data during the Power-On Self Test (POST). Configuration options: [No] [Yes] Boot Virus Detection [Enabled] This field allows you to set boot virus detection, ensuring a virus-free boot sector. The system halts and displays a warning message when it detects a virus. If this occurs, you can either allow the operation to continue or use a virus-free bootable floppy disk to restart and investigate your system. Configuration options: [Disabled] [Enabled] Quick Power On Self Test [Enabled] This field speeds up the Power-On-Self Test (POST) routine by skipping retesting a second, third, and fourth time. Configuration options: [Disabled] [Enabled] Boot Up Floppy Seek [Enabled] When enabled, the BIOS will seek the floppy disk drive to determine whether the drive has 40 or 80 tracks. Configuration options: [Disabled] [Enabled]

4.7 Exit Menu

Once you have made all of your selections from the various menus in the Setup program, you should save your changes and exit Setup. Select Exit from the menu bar to display the following menu:

Exit Saving Changes

Fan Monitor Shows the PCs fan rotation.
Fan Warning threshold adjustment (Move the slider up to increase the threshold level or down to decrease the threshold level)
Voltage Monitor Shows the PCs voltages.
95 Settings Lets you set threshold levels and polling intervals or refresh times of the PCs temperature, fan rotation, and voltages.
CPU Cooling System Setup Lets you select when to enable software CPU cooling. When When CPU Overheated is selected, the CPU cooling system is enabled whenever the CPU temperature reaches the threshold value.
History Lets you record the monitoring activity of a certain component of your PC for future reference.
Fan Control Lets you enable/disable Smart Fan Control. Smart Fan Control adjusts the fan speed automatically based on the current CPU temperature and predefined threshold.

Information

Hard Drives Shows the used and free space of the PCs hard disk drives and the file allocation table or file system used.
Memory Shows the PCs memory load, memory usage, and paging file usage.
Device Summary Shows a summary of devices in your PC.
DMI Explorer Shows information pertinent to the PC, such as CPU type, CPU speed, and internal/external frequencies, and memory size.

Utility

Lets you run programs outside of the ASUS Probe modules. To run a program, click Execute Program. NOTE: This feature is currently unavailable.
6.1.3 ASUS PC Probe Task Bar Icon
Right clicking the PC Probe icon will bring up a menu to open or exit ASUS PC Probe and pause or resume all system monitoring.
When the ASUS PC Probe senses a problem with your PC, portions of the ASUS PC Probe icon changes to red, the PC speaker beeps, and the ASUS PC Probe monitor is displayed.
6.2 CyberLink PowerPlayer SE
CyberLink PowerPlayer SE is an intelligent software player that can automatically detect and playback all kinds of video/audio files, CD and MP3 files as well. This is the only software you need for all types of video and audio files. No need to waste time identifying your file types.
6. S/W REFERENCE PowerPlayer
6.2.1 Starting CyberLink PowerPlayer SE
To start CyberLink Power Player, click the Windows Start button, point to Programs, and then CyberLink PowerPlayer SE, and then click PowerPlayer.
6.2.2 CyberLink PowerPlayer Control Panel
Minimize Zoom About Eject Help Power Off
Stop Backward Scan Backstep Frame Previous Stop Forward Scan Step Frame Next Play
Configuration i-Power! CD Mode Shuffle
Increase Volume Mute Decrease Volume

Karaoke

Next angle

Next audio stream

Next subtitle

Add bookmark

Capture frame

Repeat

Go to bookmark
CyberLink PowerDVD is the flagship of CyberLinks complete range of video and audio software products. It features unrivaled functions allowing users to view high quality video and media-rich DVD contents on the personal computer. With the iPower Internet Enabling feature, PowerDVD opens DVD enthusiasts to on-line DVD resources via the PowerDVD Desktop Portal Page.

7.2 Modem Riser

7.2.1 56K Software Modem
The Modem Riser (MR) is a high-speed PC communication peripheral which works with AMC97/MC97 compliant codecs. With this software modem, you can connect your computer to a remote location, receiving data at up to 56 Kbps in V.90 or K56flex modes.

Layout of Primary MR

7. APPENDIX Modem Riser
7.2.2 Primary/Seconday MR
There are two types of modem risers: primary MR and secondary MR. In appearance, the primary MR has a crystal onboard but the secondary does not. If your motherboard has an audio codec and no PCI audio chipset onboard, you may use the secondary MR; otherwise, you should use the primary MR.

Bottom:

Crystal
7.2.3 Hardware Installation Procedure
1. Power OFF your computer. 2. Open the computer chassis and remove the metal plate on the AMR expansion slot. 3. Carefully align the MR cards connector to the AMR slot and press firmly. 4. Secure the MR card onto the chassis with the screw removed in step 2. 5. Connect the MR cards LINE connector to a telephone wall jack. Connect the PHONE connector to a telephone (optional). 6. Replace the computer chassis.
7.2.4 Software Setup in Windows 98
The Modem Riser supports the Plug and Play feature. It allows your computer to automatically set the optimal configurations for the MR and communication software. Follow the procedure below to install the modem driver. 1. Power ON the computer after the hardware installation is completed. 2. Windows 98 will automatically detect the modem and display a PCI Card message under Add New Hardware Found. 3. Select Search for the best driver for your device and click Next. 4. Insert the Support CD that came with your motherboard into your CD-ROM drive. Enter the path E:\Modem\Win98 (assuming that your CD-ROM drive is drive E:) for the MR driver. 5. After the driver is located, click Next and then click Finish. 6. Restart your computer. Double click the modem icon at the bottom-right corner of the window. 7. Click the Settings tab. Select your country and language. Click OK. 8. Click Start, point to Settings, click Control Panel, double click Modems, click the General tab, and click Motorala SM56 AC-L Modem. 9. Click Diagnostic and then click the designated COM port as shown. 10. Click More Info. If the computer system successfully communicates with the modem, responses will be displayed as shown.

7.3 Glossary

is the IEEE designation for the high performance serial bus at 12.5, 25 or 50MBytes/sec speeds. This serial bus defines both a back plane physical layer and a point-to-point cable-connected virtual bus. The primary application of the cable version is the integration of I/O connectivity at the back panel of personal computers using a low-cost, scalable, high-speed serial interface. The 1394 standard also provides new services such as live connect/disconnect capability for external devices including disk drives, printers and hand-held peripherals such as scanners and cameras. This is a new standard to complement the slower USB interface and to compete with the more expensive SCSI interface. AC97 (Audio Codec '97) AC '97 is the next step in enabling PCs with audio quality comparable to consumer electronics devices. The specification defines new cost-effective options to help integrate the components necessary to support next-generation auto-intensive PC applications such as DVD, 3-D multiplayer gaming and interactive music. The specification also defines new extensions supporting modem and docking to help both desktop and mobile manufacturers adopt these new technologies more quickly and cost-effectively. This specification uses software emulation to compete with the PCI SoundBlaster specification. ACPI (Advanced Configuration and Power Interface) The ACPI specification defines a cross-platform interface designed to support many operating systems. ACPI defines a flexible and abstract hardware interface that provides a standard way to integrate power management features throughout a PC system, including hardware, operating system and application software. This enables the system to automatically turn ON and OFF peripherals such as CD-ROMs, network cards, hard disk drives, and printers, as well as consumer devices connected to the PC such as VCRs, TVs, phones, and stereos. With this technology, peripherals will also be able to activate the PC. For example, inserting a tape into a VCR can turn on the PC, which could then activate a large-screen TV and high-fidelity sound system. AGP (Accelerated Graphics Port) An interface specification that enables high-performance 3D graphics on mainstream PCs. AGP was designed to offer the necessary bandwidth and latency to perform texture mapping directly from system memory. Bus PCI AGP 1X AGP 2X AGP 4X Bus Frequency 33MHz 66MHz 66MHz 66MHz Bandwidth 33MHz 66MHz 133MHz 266MHz Data Transfer Rate 133MByte/sec 266MByte/sec 512MByte/sec 1024MByte/sec

2. FEATURES Specifications
Wake-On-Ring Connector: Supports Wake-On-Ring activity through a PCI modem card that supports a WOR connector. PC Health Monitoring: Provides an easy way to examine and manage system status information, such as CPU and systerm voltages, temperatures, and fan status through the onboard hardware ASUS ASIC and the bundled ASUS PC Probe. SMBus: Features the System Management Bus interface, which is used to physically transport commands and information between SMBus devices. PCI/ISA/AMR Expansion Slots: Provides five 32-bit PCI (Rev. 2.2) expansion slots, which can support Bus Master PCI cards, such as SCSI or LAN cards (PCI supports up to 133MB/s maximum throughput), one 16-bit ISA expansion slot, and one Audio Modem Riser (AMR) slot, which supports a very affordable audio and/or modem riser card. (Only an ISA-side AMR card can be used.) Super Multi-I/O: Provides two high-speed UART compatible serial ports and one parallel port with EPP and ECP capabilities. UART2 can also be directed from COM2 to the Infrared Module for wireless connections. Enhanced ACPI & Anti-Boot Virus Protection: Programmable BIOS (Flash EEPROM), offering enhanced ACPI for Windows 98 compatibility, built-in firmware-based virus protection, and autodetection of most devices for virtually automatic setup. IrDA: Supports an optional infrared port module for wireless interface. Concurrent PCI: Concurrent PCI allows multiple PCI transfers from PCI master busses to the memory and processor. Smart BIOS: 2MB firmware provides Vcore and CPU/SDRAM frequency adjustments, boot block write protection, and HD/SCSI/MO/ZIP/CD/Floppy boot selection. Power supply is autodetected to enable/disable suspend-to-RAM, eliminating the need to make jumper adjustments. Integrated Infrared Support: Integrated IR supports an optional remote control package for wireless interfacing with external peripherals, personal gadgets, or an optional remote controller. Desktop Management Interface (DMI): Supports DMI through BIOS, which allows hardware to communicate within a standard protocol creating a higher level of compatibility. (Requires DMI-enabled components.)

2.1.2 Special Features

ACPI Ready: Advanced Configuration Power Interface (ACPI) provides more Energy Saving Features for operating systems that support OS Direct Power Management (OSPM) functionality. With these features implemented in the OS, PCs can be ready around the clock, yet satisfy all the energy saving standards. To fully utilize the benefits of ACPI, an ACPI-supported OS, such as Windows 98 must be used. Easy Installation: Incorporates BIOS that supports autodetection of hard disk drives, PS/2 mouse, and Plug and Play devices to make the setup of hard disk drives, expansion cards, and other devices virtually automatic. PC99 Compliant: Both the BIOS and hardware levels of ASUS smart series motherboards meet PC99 compliancy. The new PC99 requirements for systems and components are based on the following high-level goals: Support for Plug and Play compatibility and power management for configuring and managing all system components, and 32-bit device drivers and installation procedures for Windows 95/98/NT. Color-coded connectors and descriptive icons make identification easy as required by PC99. Symbios SCSI BIOS: Supports optional ASUS SCSI controller cards through the onboard SYMBIOS firmware.

2. FEATURES Intelligence

2.2 Motherboard Components
See opposite page for locations.
Location Processor Support Socket 370 for Pentium III/Celeron/Joshua Processors. 2 Feature Setting DIP Switches... 6 Chipsets VIA VT82C694Z (VIA Apollo Pro133Z) system controller.. 3 VIA VT82C686A PCIset.. 12 2Mbit Programmable Flash EEPROM.. 10 Main Memory Maximum 1.5GB support 3 DIMM Sockets... 4 PC133 SDRAM support Expansion Slots 5 PCI Slots... ISA Slot... Accelerated Graphics Port (AGP) Pro Slot.. Audio Modem Riser (AMR) Slot.. 15 System I/O 1 Floppy Disk Driver Connector... IDE Connectors (UltraDMA66 Support).. Parallel Port Connector.. (Top) Serial COM1 Port Connector.. (Bottom) Serial COM2 Port Connector.. 8 USB Connectors (Port 0 & Port 1).. 24 USB Connectors (Port 2 & Port 3).. PS/2 Mouse Connector... (Top) PS/2 Keyboard Connector.. (Bottom) 25 Audio AC97 V2.1 Audio Codec (optional).. Game/MIDI Connector (on audio model only). (Top) Line Out Connector (on audio model only). (Bottom) Line In Connector (on audio model only). (Bottom) Microphone Connector (on audio model only). (Bottom) 21 Network Features Wake-On-LAN Connector.. 17 Wake-On-Ring Connector.. 13 Hardware Monitoring System Voltage Monitoring (integrated in ASUS ASIC). Fan Power and Speed Monitoring Connectors Power ATX Power Supply Connector.. 1 Special Feature Onboard LED... 16 Form Factor ATX
2. FEATURES Motherboard Parts
2.2.1 Component Locations

3. HARDWARE SETUP

3.1 Motherboard Layout

20.9cm (8.22in)

T: Mouse B: Keyboard
DIMM Socket 1 (64/72-bit, 168-pin module)
DIMM Socket 2 (64/72-bit, 168-pin module)

USB1 USB2

DIMM Socket 3 (64/72-bit, 168-pin module)

PARALLEL PORT

CPU_FAN

Socket 370

PWR_FAN

cyrix 133

DIP Switches DIP_SW

ATX Power Connector

VT82C694Z

Mic In

CD VIDEO

Audio Codec

PCI 2 PCI 3

WOL_CON

VT82C686A

Chipset

MODEM HPHONE
CR2032 3V Lithium Cell CMOS Power
CHA_FAN SPDIFOUT Audio Codec Setting

with Hardware Monitor

ASUS ASIC

USBPORT

IDELED

Audio Modem Riser (AMR)

16 ASUS CUV4X Users Manual
3.3 Hardware Setup Procedure
Before using your computer, you must complete the following steps: 1. Check Motherboard Settings 2. Install Memory Modules 3. Install the Central Processing Unit (CPU) 4. Install Expansion Cards 5. Connect Ribbon Cables, Panel Wires, and Power Supply 6. Setup the BIOS Software

3.4 Motherboard Settings

This section explains in detail how to change your motherboards function settings through the use of switches and/or jumpers. WARNING! Computer motherboards and expansion cards contain very delicate Integrated Circuit (IC) chips. To protect them against damage from static electricity, you should follow some precautions whenever you work on your computer. 1. Unplug your computer when working on the inside. 2. Use a grounded wrist strap before handling computer components. If you do not have one, touch both of your hands to a safely grounded object or to a metal object, such as the power supply case. 3. Hold components by the edges and try not to touch the IC chips, leads or connectors, or other components. 4. Place components on a grounded antistatic pad or on the bag that came with the component whenever the components are separated from the system. 5. Ensure that the ATX power supply is switched off before you plug in or remove the ATX power connector on the motherboard. WARNING! Make sure that you unplug your power supply when adding or removing system components. Failure to do so may cause severe damage to your motherboard, peripherals, and/or components. The onboard LED when lit acts as a reminder that the system is in suspend or soft-off mode and not powered OFF.

ON Standby Power

OFF Powered Off

CUV4X Onboard LED

Motherboard Features Settings (DIP Switches - DIP_SW) The motherboards onboard functions are adjusted through the DIP switches. The white block represents the switchs position. The example below shows all the switches in the OFF position.
< Frequency Multiple < Frequency Multiple < Frequency Multiple < Frequency Multiple < Frequency Selection < Frequency Selection < Frequency Selection < Frequency Selection

ON 7 8

ON OFF

CUV4X DIP Switches

3. H/W SETUP MotherboardSettings
1) JumperFree Mode (JEN) This jumper allows you to enable or disable the JumperFree mode. The JumperFree mode allows processor settings to be made through the BIOS setup (see 4.4 Advanced Menu). Setting JEN Enable (JumperFree) [2-3] (default) Disable (Jumper) [1-2]

DIP_SW

Jumper Mode
JumperFree Mode (Default)
CUV4X JumperFree Mode Setting
NOTE: In JumperFree mode, all dip switches (DIP_SW) must be set to OFF.
2) Onboard Audio Setting (AUDIOCODEC) The onboard audio CODEC may be enabled or disabled using all of these jumpers. Disable the onboard audio CODEC if you are using an ISA or PCI audio card on any of the expansion slots or a primary AMR on the AMR slot. If using an ISA or PCI audio expansion card, Onboard AC97 Audio Controller in 4.4.2 I/O Device Configuration of the BIOS must also be disabled. NOTE: This setting is available only on motherboards with the onboard audio option. Setting Enable Disable AUDIOCODEC [1-2] [1-2] [1-2] [1-2] (default) [2-3] [2-3] [2-3] [2-3]

For updated processor settings, please visit ASUS web site (see ASUS CONTACT INFORMATION).

3.5 System Memory (DIMM)

This motherboard uses only Dual Inline Memory Modules (DIMMs). Three sockets are available for 3.3Volt (power level) unbuffered Synchronous Dynamic Random Access Memory (SDRAM) of 8, 16, 32, 64, 128, 256, or 512MB to form a memory size between 8MB to 1.5GB. One side (with memory chips) of the DIMM takes up one row on the motherboard. This motherboard also supports NECs Virtual Channel (VC) SDRAMs and Enhanced Memory Systems High-speed DRAMs (HSDRAMs). Memory speed setup is recommended through SDRAM Configuration under Chipset Features Setup. IMPORTANT (see General DIMM Notes below for more) SDRAMs used must be compatible with the current Intel PC133 SDRAM specification. DO NOT attempt to mix registered SDRAMs with VCM SDRAMs.
3. H/W SETUP SystemMemory
Install memory in any combination as follows:
DIMM Location Socket 1 (Rows 0&1) Socket 2 (Rows 2&3) Socket 3 (Rows 4&5) 168-pin DIMM SDRAM 8, 16, 32, 64, 128, 256, 512MB x1 SDRAM 8, 16, 32, 64, 128, 256, 512MB x1 SDRAM 8, 16, 32, 64, 128, 256, 512MB x1 Total System Memory (Max 1536MB) = Total Memory

3.5.1 General DIMM Notes

DIMMs that have more than 18 chips are not supported on this motherboard. For the system CPU bus to operate 100MHz/133MHz, use only PC100-/PC133compliant DIMMs. ASUS motherboards support SPD (Serial Presence Detect) DIMMs. This is the memory of choice for best performance vs. stability. SDRAM chips are generally thinner with higher pin density than EDO (Extended Data Output) chips. BIOS shows SDRAM memory on bootup screen. Single-sided DIMMs come in 16, 32, 64,128, 256MB; double-sided come in 32, 64, 128, 256, 512MB.
3.5.2 Memory Installation
WARNING! Make sure that you unplug your power supply when adding or removing memory modules or other system components. Failure to do so may cause severe damage to both your motherboard and expansion cards (see 3.3 Hardware Setup Procedure for more information). Insert the module(s) as shown. Because the number of pins are different on either side of the breaks, the module will only fit in the orientation shown. DRAM SIMM modules have the same pin contacts on both sides. SDRAM DIMMs have different pin contacts on each side and therefore have a higher pin density.

88 Pins

60 Pins

20 Pins

CUV4X 168-Pin DIMM Sockets
The DIMMs must be 3.3Volt unbuffered SDRAMs. To determine the DIMM type, check the notches on the DIMMs (see figure below).
168-Pin DIMM Notch Key Definitions (3.3V)

DRAM Key Position Unbuffered RFU Buffered
Voltage Key Position 5.0V 3.3V Reserved
The notches on the DIMM will shift between left, center, or right to identify the type and also to prevent the wrong type from being inserted into the DIMM slot on the motherboard. You must tell your retailer the correct DIMM type before purchasing. This motherboard supports four clock signals per DIMM.
(This page was intentionally left blank.)
24 ASUS CUV4X Users Manual
3.6 Central Processing Unit (CPU)
The motherboard provides a ZIF Socket 370. The CPU that came with the motherboard should have a fan attached to it to prevent overheating. If this is not the case, then purchase a fan before you turn on your system. WARNING! Be sure that there is sufficient air circulation across the processors heatsink by regularly checking that your CPU fan is working. Without sufficient circulation, the processor could overheat and damage both the processor and the motherboard. You may install an auxiliary fan, if necessary. To install a CPU, first turn off your system and remove its cover. Locate the ZIF socket and open it by first pulling the lever sideways away from the socket then upwards to a 90-degree angle. Insert the CPU with the correct orientation as shown. The notched corner should point towards the end of the lever. Because the CPU has a corner pin for two of the four corners, the CPU will only fit in the orientation as shown. The picture is for reference only; you should have a CPU fan that covers the face of the CPU. With the added weight of the CPU fan, no force is required to insert the CPU. Once completely inserted, close the sockets lever while holding down the CPU. NOTE: Do not forget to set the correct Bus Frequency and Multiple (frequency multiple setting is available only on unlocked processors) for your Socket 370 processor or else boot-up may not be possible. Socket 370 processors provide internal thermal sensing so that a socket mounted thermal resistor is not needed. CAUTION! Be careful not to scrape the motherboard when mounting a clampstyle processor fan or else damage may occur to the motherboard.
Socket 370 CPU (Top) Socket 370 CPU (Bottom)

Celeron

Pentium III

CUV4X Socket 370

Gold Arrow

3. H/W SETUP CPU

3.7 Expansion Cards
WARNING! Unplug your power supply when adding or removing expansion cards or other system components. Failure to do so may cause severe damage to both your motherboard and expansion cards.
3.7.1 Expansion Card Installation Procedure
1. Read the documentation for your expansion card and make any necessary hardware or software settings for your expansion card, such as jumpers. 2. Remove your computer systems cover and the bracket plate on the slot you intend to use. Keep the bracket for possible future use. 3. Carefully align the cards connectors and press firmly. 4. Secure the card on the slot with the screw you removed above. 5. Replace the computer systems cover. 6. Set up the BIOS if necessary (such as IRQ xx Used By ISA: Yes in 4.4.3 PCI Configuration) 7. Install the necessary software drivers for your expansion card.

GND +12V Rotation

CHA_FAN
CUV4X 12-Volt Cooling Fan Power
15) USB Headers (10-1 pin USB2) (optional) If the USB port connectors on the back panel are inadequate, two USB headers are available for two additional USB port connectors. Connect the USB headers to an optional 2-port USB connector set and mount the bracket to an open slot on your chassis.
USB Power USBP2 USBP2+ GND NC
USB Power USBP3 USBP3+ GND
CUV4X Front Panel USB Header

Rotation +12V GND

16) Standard and Consumer Infrared Module Connector (5-pin IR) This connector supports an optional wireless transmitting and receiving infrared module. This module mounts to a small opening on system cases that support this feature. You must also configure the setting through UART2 Use Infrared (see 4.4.2 I/O Device Configuration) to select whether UART2 is directed for use with COM2 or IrDA. Use the five pins as shown in Back View and connect a ribbon cable from the module to the motherboards SIR connector according to the pin definitions. An optional consumer infrared (CIR) set connects to the CIR and SIR connectors simultaneously for both wireless transmitting and remote control functions through one external infrared module. Wake On PS2 KB/Mouse in 4.5.1 Power Up Control must be Enabled in order to use Consumer Infrared (CIR) power up.

+5V (NC) IRRX GND IRTX

IRTX GND IRRX

+5V (NC)

CUV4X Infrared Module Connector
17) Internal Audio Connectors (4-pin CD_IN, AUX, VIDEO, MODEM) These connectors allow you to receive stereo audio input from such sound sources as a CD-ROM, TV tuner, or MPEG card. The MODEM connector allows the onboard audio to interface with a voice modem card with a similar connector. It also allows the sharing of mono_in (such as a phone) and mono_out (such as a speaker) between the onboard audio and a voice modem card.
Left Audio Channel Ground Right Audio Channel Left Audio Channel Ground Right Audio Channel Left Audio Channel Ground Right Audio Channel

CD (White) VIDEO (Green)

AUX (Black)
Modem-Out (from Modem) Ground Modem-In (to Modem)
CUV4X Internal Audio Connectors

Front View

Back View
18) ATX Power Supply Connector (20-pin block ATXPWR) This connector connects to an ATX power supply. The plug from the power supply will only insert in one orientation because of the different hole sizes. Find the proper orientation and push down firmly making sure that the pins are aligned. IMPORTANT: Make sure that your ATX power supply can supply at least 10mA on the +5-volt standby lead (+5VSB). You may experience difficulty in powering ON your system if your power supply cannot support the load. For WakeOn-LAN support, your ATX power supply must supply at least 720mA +5VSB.

3.9 Starting Up the First Time
1. After all connections are made, close the system case cover. 2. Be sure that all switches are off (in some systems, marked with ). 3. Connect the power supply cord into the power supply located on the back of your system case according to your system users manual. 4. Connect the power cord into a power outlet that is equipped with a surge protector. 5. You may then turn on your devices in the following order: a. Your monitor b. External SCSI devices (starting with the last device on the chain) c. Your system power. For ATX power supplies, you need to switch on the power supply as well as press the ATX power switch on the front of the case. 6. The power LED on the front panel of the system case will light. For ATX power supplies, the system LED will light when the ATX power switch is pressed. The LED on the monitor may light up or switch between orange and green after the systems if it complies with green standards or if it has a power standby feature. The system will then run power-on tests. While the tests are running, the BIOS will alarm beeps or additional messages will appear on the screen. If you do not see anything within 30 seconds from the time you turn on the power, the system may have failed a power-on test. Recheck your jumper settings and connections or call your retailer for assistance.

Award BIOS Beep Codes

Beep One short beep when displaying logo Long beeps in an endless loop One long beep followed by three short beeps High frequency beeps when system is working Meaning No error during POST No DRAM installed or detected Video card not found or video card memory bad CPU overheated System running at a lower frequency

3. H/W SETUP Powering Up

7. During power-on, hold down <Delete> to enter BIOS setup. Follow the instructions in 4. BIOS SETUP. * Powering Off your computer: You must first exit or shut down your operating system before switching off the power switch. For ATX power supplies, you can press the ATX power switch after exiting or shutting down your operating system. If you use Windows 9X, click the Start button, click Shut Down, and then click Shut down the computer? The power supply should turn off after Windows shuts down. NOTE: The message You can now safely turn off your computer will not appear when shutting down with ATX power supplies.
42 ASUS CUV4X Users Manual

4. BIOS SETUP

4.1 Managing and Updating Your BIOS
4.1.1 Upon First Use of the Computer System
It is recommended that you save a copy of the original motherboard BIOS along with a Flash Memory Writer utility (AFLASH.EXE) to a bootable floppy disk in case you need to reinstall the BIOS later. AFLASH.EXE is a Flash Memory Writer utility that updates the BIOS by uploading a new BIOS file to the programmable flash ROM on the motherboard. This file works only in DOS mode. To determine the BIOS version of your motherboard, check the last four numbers of the code displayed on the upper lefthand corner of your screen during bootup. Larger numbers represent a newer BIOS file. 1. Type FORMAT A:/S at the DOS prompt to create a bootable system floppy disk. DO NOT copy AUTOEXEC.BAT & CONFIG.SYS to the disk. 2. Type COPY D:\AFLASH\AFLASH.EXE A:\ (assuming D is your CDROM drive) to copy AFLASH.EXE to the just created boot disk. NOTE: AFLASH works only in DOS mode. It will not work with DOS prompt in Windows and will not work with certain memory drivers that may be loaded when you boot from your hard drive. It is recommended that you reboot using a floppy. 3. Reboot your computer from the floppy disk. NOTE: BIOS setup must specify Floppy as the first item in the boot sequence. 4. In DOS mode, type A:\AFLASH <Enter> to run AFLASH.

46 ASUS CUV4X Users Manual

4.2 BIOS Setup Program

This motherboard supports a programmable EEPROM that can be updated using the provided utility as described in 4.1 Managing and Updating Your BIOS. The utility is used if you are installing a motherboard, reconfiguring your system, or prompted to Run Setup. This section describes how to configure your system using this utility. Even if you are not prompted to use the Setup program, at some time in the future you may want to change the configuration of your computer. For example, you may want to enable the Security Password Feature or make changes to the power management settings. It will then be necessary to reconfigure your system using the BIOS Setup program so that the computer can recognize these changes and record them in the CMOS RAM of the EEPROM. The EEPROM on the motherboard stores the Setup utility. When you start up the computer, the system provides you with the opportunity to run this program. This appears during the Power-On Self Test (POST). Press <Delete> to call up the Setup utility. If you are a little bit late in pressing the mentioned key, POST will continue with its test routines, thus preventing you from calling up Setup. If you still need to call Setup, restart the system by pressing <Ctrl> + <Alt> + <Delete>, or by pressing the Reset button on the system chassis. You can also restart by turning the system off and then back on again. But do so only if the first two methods fail. The Setup program has been designed to make it as easy to use as possible. It is a menu-driven program, which means you can scroll through the various sub-menus and make your selections among the predetermined choices. To access the BIOS Setup program, press the <Delete> key after the computer has run through its POST. NOTE: Because the BIOS software is constantly being updated, the following BIOS screens and descriptions are for reference purposes only and may not reflect your BIOS screens exactly.
4. BIOS SETUP Program Information

4.2.1 BIOS Menu Bar

The top of the screen has a menu bar with the following selections: MAIN Use this menu to make changes to the basic system configuration. ADVANCED Use this menu to enable and make changes to the advanced features. POWER Use this menu to configure and enable Power Management features. BOOT Use this menu to configure the default system device used to locate and load the Operating System. EXIT Use this menu to exit the current menu or specify how to exit the Setup program. To access the menu bar items, press the right or left arrow key on the keyboard until the desired item is highlighted.

NOTE: Before attempting to configure a hard disk drive, make sure you have the configuration information supplied by the manufacturer of the drive. Incorrect settings may cause your system to not recognize the installed hard disk. To allow the BIOS to detect the drive type automatically, select [Auto].
IMPORTANT: If your hard disk was already formatted on an older previous system, incorrect parameters may be detected. You will need to enter the correct parameters manually or use low-level format if you do not need the data stored on the hard disk. If the parameters listed differ from the ones used when the disk was formatted, the disk will not be readable. If the auto-detected parameters do not match the ones that should be used for your disk, you should enter the correct ones manually by setting [User Type HDD]. [User Type HDD]
Manually enter the number of cylinders, heads and sectors per track for your drive. Refer to your drive documentation or look on the drive for this information. If no drive is installed or if you are removing a drive and not replacing it, select [None]. Translation Method [LBA] Select the hard disk drive type in this field. When Logical Block Addressing is enabled, 28-bit addressing of the hard drive is used without regard for cylinders, heads, or sectors. Note that LBA Mode is necessary for drives with greater than 504MB in storage capacity. Configuration options: [LBA] [LARGE] [Normal] [Match Partition Table] [Manual] Cylinders This field configures the number of cylinders. Refer to your drive documentation to determine the correct value to enter into this field. NOTE: To make changes to this field, the Type field must be set to [User Type HDD] and the Translation Method field must be set to [Manual].
Head This field configures the number of read/write heads. Refer to your drive documentation to determine the correct value to enter into this field. NOTE: To make changes to this field, the Type field must be set to [User Type HDD] and the Translation Method field must be set to [Manual]. Sector This field configures the number of sectors per track. Refer to your drive documentation to determine the correct value to enter into this field. NOTE: To make changes to this field, the Type field must be set to [User Type HDD] and the Translation Method field must be set to [Manual]. CHS Capacity This field shows the drives maximum CHS capacity calculated automatically by the BIOS from the drive information you entered. Maximum LBA Capacity This field shows the drives maximum LBA capacity calculated automatically by the BIOS from the drive information you entered. Multi-Sector Transfers [Maximum] This option automatically sets the number of sectors per block to the highest number supported by the drive. This field can also be configured manually. Note that when this field is automatically configured, the set value may not always be the fastest value for the drive. Refer to the documentation that came with your hard drive to determine the optimal value and set it manually. NOTE: To make changes to this field, the Type field must be set to [User Type HDD]. Configuration options: [Disabled] [2 Sectors] [4 Sectors] [8 Sectors] [16 Sectors] [32 Sectors] [Maximum] SMART Monitoring [Disabled] This allows the enabling or disabling of the S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology) system which utilizes internal hard disk drive monitoring technology. This feature is normally disabled because system resources used in this feature may decrease system performance. Configuration options: [Disabled] [Enabled] PIO Mode [4] This option lets you set a PIO (Programmed Input/Output) mode for the IDE device. Modes 0 through 4 provide successively increased performance. Configuration options: [0] [1] [2] [3] [4] Ultra DMA Mode [Disabled] Ultra DMA capability allows improved transfer speeds and data integrity for compatible IDE devices. Set to [Disabled] to suppress Ultra DMA capability. NOTE: To make changes to this field, the Type field must be set to [User Type HDD]. Configuration options: [0] [1] [2] [3] [4] [Disabled] ASUS CUV4X Users Manual 53

Sound Blaster Emulation [Disabled] Select [Enabled] for this field if you want to use the Sound Blaster emulation feature. Sound Blaster I/O Base Address [220h-22Fh] Sound Blaster IRQ [IRQ5] Sound Blaster DMA [DMA 1] These fields set the I/O address, IRQ, and DMA channel for the Sound Blaster feature. MPU 401 [Enabled] Enable this field if you want to use the MIDI device onboard. MPU 401 I/O Base Address [300h-303h] This sets the I/O address for the onboard MIDI device. FM Enable (388h-38Bh) [Disabled] This field enables or disables the FM modulation feature.

4.4.3 PCI Configuration

Slot 1/5, Slot 2, Slot 3, Slot 4 IRQ [Auto] These fields set how IRQ use is determined for each PCI slot. The default setting for each field is [Auto], which utilizes auto-routing to determine IRQ use. Configuration options: [Auto] [NA] [3] [4] [5] [7] [9] [10] [11] [12] [14] [15] PCI/VGA Palette Snoop [Disabled] Some nonstandard VGA cards, such as graphics accelerators or MPEG video cards, may not show colors properly. The setting [Enabled] should correct this problem. Otherwise, leave this on the default setting of [Disabled]. Configuration options: [Disabled] [Enabled] PCI Latency Timer [32] Leave on default setting for best performance vs. stability. SYMBIOS SCSI BIOS [Auto] [Auto] allows the motherboards BIOS to detect whether you have a Symbios SCSI card. If the Symbios SCSI card is detected, the motherboards Symbios BIOS will be enabled; if no Symbios SCSI card is detected, the onboard Symbios SCSI BIOS will be disabled. [Disabled] will disable the motherboards Symbios SCSI BIOS so that the BIOS on an add-on Symbios SCSI card can be used. If your Symbios SCSI card does not have a BIOS, the Symbios SCSI card will not function. Configuration options: [Auto] [Disabled] 66 ASUS CUV4X Users Manual
4. BIOS SETUP PCI Configuration
USB Function [Enabled] Set to [Enabled] if you want to use Universal Serial Bus devices. Configuration options: [Disabled] [Enabled] VGA BIOS Sequence [PCI/AGP] If your computer has both PCI and AGP VGA cards, this field allows ou to select which of the cards will act as your primary graphics card. [AGP/PCI] uses the AGP card as your primary card. The default, [PCI/AGP], allows your PCI graphics card to take precedence when detected. Configuration options: [PCI/AGP] [AGP/PCI]
PCI/PNP ISA IRQ Resource Exclusion
IRQ XX Used By ISA [No/ICU] These fields indicate whether or not the displayed IRQ for each field is being used by a legacy (non-PnP) ISA card. The default value indicates either that the displayed IRQ is not used or that ISA Configuration Utility (ICU) is being used to determine if an ISA card is using that IRQ. If you install a legacy ISA card that requires a unique IRQ and you are not using an ICU, you must set the field for that IRQ to [Yes]. For example: If you install a legacy ISA card that requires IRQ 10, then set IRQ10 Used By ISA to [Yes]. Configuration options: [No/ICU] [Yes]

PCI/PNP ISA DMA Resource Exclusion
DMA x Used By ISA [No/ICU] These fields indicate whether or not the displayed DMA channel for each field is being used by a legacy (non-PnP) ISA card. The default setting indicates either that the displayed DMA channel is not used or an ICU is being used to determine if an ISA card is using that channel. If you install a legacy ISA card that requires a unique DMA channel, and you are not using an ICU, you must set the field for that channel to [Yes]. Configuration options: [No/ICU] [Yes]
PCI/PNP ISA UMB Resource Exclusion
ISA MEM Block BASE [No/ICU] This field allows you to set the base address and block size of a legacy ISA card that uses any memory segment within the C800 and DFFF address range. If you have such a card and you are not using an ICU to specify its address range, select a base address from the six available options; the ISA MEM Block SIZE field will then appear for selecting the block size. If you have more than one legacy ISA card in your system that requires the use of this address range, you can increase the block size to 8K, 16K, 32K, or 64K. If you are using an ICU to accomplish this task, leave ISA MEM Block BASE to its default setting of [No/ICU]. Configuration options: [No/ICU] [C800] [CC00] [D000] [D400] [D800] [DC00]
4.4.4 Shadow Configuration
Video ROM BIOS Shadow [Enabled] This field allows you to change the video BIOS location from ROM to RAM. Relocating to RAM enhances system performance, as information access is faster than the ROM. Configuration options: [Disabled] [Enabled] C8000-DFFFF Shadow [Disabled] These fields are used for shadowing other expansion card ROMs. If you install other expansion cards with ROMs on them, you will need to know which addresses the ROMs use to shadow them specifically. Shadowing a ROM reduces the memory available between 640K and 1024K by the amount used for this purpose. Configuration options: [Disabled] [Enabled]

4.5 Power Menu

The Power menu allows you to reduce power consumption. This feature turns off the video display and shuts down the hard disk after a period of inactivity.
Power Management [User Define] This option must be enabled to use any of the automatic power saving features. If this menu item is set to [Disabled], power management features will not function regardless of other field settings on this menu. The [User Define] option allows you to make your own selections in the Power menu. When set to [Max Saving], system power will be conserved to its greatest amount. The Suspend Mode field will then be set to predefined value that ensures maximum power savings. This field acts as the master control for the power management modes. [Max Saving] puts the system into power saving mode after a brief period of system inactivity; [Min Saving] is almost the same as [Max Saving] except that the system inactivity period is longer; [Disabled] disables the power saving features; [User Define] allows you to set power saving options according to your preference. Configuration options: [User Define] [Disabled] [Min Saving] [Max Saving] IMPORTANT: Advanced Power Management (APM) should be installed to keep the system time updated when the computer enters suspend mode activated by the BIOS Power Management. For DOS environments, you need to add the statement, DEVICE=C:\DOS\POWER.EXE, to your CONFIG.SYS file. For Windows 3.x and Windows 95, you need to install Windows with the APM feature. For Windows 98 and later, APM is automatically installed. A battery and power cord icon labeled Power Management will appear in the Control Panel. Choose Advanced in the Power Management Properties dialog box. 70 ASUS CUV4X Users Manual

4. BIOS SETUP Power Menu

Video Off Option [Suspend -> Off ] This field determines when to activate the video off feature for monitor power management. Configuration options: [Always On] [Suspend -> Off] Video Off Method [DPMS OFF] This field defines the video off features. The DPMS (Display Power Management System) feature allows the BIOS to control the video display card if it supports the DPMS feature. [Blank Screen] only blanks the screen (use this for monitors without power management or green features. If set up in your system, your screen saver will not display with [Blank Screen] selected). [V/ H SYNC+Blank] blanks the screen and turns off vertical and horizontal scanning. Configuration options: [Blank Screen] [V/H SYNC+Blank] [DPMS Standby] [DPMS Suspend] [DPMS OFF] [DPMS Reduce ON] HDD Power Down [Disabled] Shuts down any IDE hard disk drives in the system after a period of inactivity as set in this user-configurable field. This feature does not affect SCSI hard drives. Configuration options: [Disabled] [1 Min] [2 Min] [3 Min].[15 Min] Suspend-to-RAM Capability [Disabled] Suspend-to-RAM (STR) is an energy-saving feature. In Suspend-to-RAM state, all devices on the computer are turned off, except for the system RAM. Thus, the PC consumes less than 5 Watts of power. [Auto] allows the BIOS to detect if your power supply can supply at least 720mA on the +5VSB lead to support the STR function. If the power supply meets the requirement, the STR function will be enabled; if not, this function will be disabled. If the expansion cards you use on the motherboard do not support the STR function, you must leave this field on the default setting [Disabled]. Configuration options: [Auto] [Disabled] Suspend Mode [Disabled] Sets the time period before the system goes into suspend mode. Configuration options: [Disabled] [30 Sec] [1 Min] [2 Min].[1 Hour] PWR Button < 4 Secs [Soft Off] When set to [Soft off], the ATX switch can be used as a normal system power-off button when pressed for less than 4 seconds. [Suspend] allows the button to have a dual function where pressing less than 4 seconds will place the system in sleep mode. Regardless of the setting, holding the ATX switch for more than 4 seconds will power off the system. Configuration options: [Soft off] [Suspend]

4.5.1 Power Up Control

AC PWR Loss Restart [Disabled] This allows you to set whether you want your system to reboot after the power has been interrupted. [Disabled] leaves your system off and [Enabled] reboots your system. [Previous State] sets your system back to the state it is before the power interruption. Configuration options: [Disabled] [Enabled] [Previous State] PWR Up On External Modem Act [Disabled] This allows either settings of [Enabled] or [Disabled] for powering up the computer when the external modem receives a call while the computer is in Soft-off mode. NOTE: The computer cannot receive or transmit data until the computer and applications are fully running. Thus connection cannot be made on the first try. Turning an external modem off and then back on while the computer is off causes an initialization string that will also cause the system to power on. Configuration options: [Disabled] [Enabled] Wake On LAN or PCI Modem [Enabled] Wake-On-LAN/PCI Modem allows your computer to be booted from another computer via a network by sending a wake-up frame or signal. Configuration options: [Disabled] [Enabled] IMPORTANT: This feature requires an optional network interface with Wake-OnLAN and an ATX power supply with at least 720mA +5V standby power.

4. BIOS SETUP Power Up Control
Automatic Power Up [Disabled] This allows an unattended or automatic system power up. You may configure your system to power up at a certain time of the day by selecting [Everyday] or at a certain time and day by selecting [By Date]. Configuration options: [Disabled] [Everyday] [By Date]

4.5.2 Hardware Monitor

MB Temperature, CPU Temperature [xxxC/xxxF], JTPWR Temperature [Ignore] The onboard hardware monitor is able to detect the MB (motherboard), CPU and power supply temperatures. Set to [Ignore] only if necessary. CPU Fan [xxxxRPM], Power Fan Speed [Ignore], Chassis Fan Speed [N/A] The onboard hardware monitor is able to detect the CPU fan speed, power supply fan speed, and the chassis fan speed in rotations per minute (RPM). The presence of the fans is automatically detected. Set to [Ignore] only if necessary. VCORE Voltage, +3.3V Voltage, +5V Voltage, +12V Voltage, -12V Voltage [xx.xxV] -5V Voltage [Ignore] The onboard hardware monitor is able to detect the voltage output by the onboard voltage regulators. Set to [Ignore] only if necessary. NOTE: If any of the monitored items is out of range, an error message will appear: Hardware Monitor found an error. Enter Power setup menu for details. You will then be prompted to Press F1 to continue, DEL to enter SETUP.
4. BIOS SETUP Hardware Monitor

4.6 Boot Menu

Boot Sequence
The Boot menu allows you to select among the four possible types of boot devices listed using the up and down arrow keys. By using the <+> or <Space> key, you can promote devices and by using the <-> key, you can demote devices. Promotion or demotion of devices alters the priority which the system uses to search for a boot device on system power up. Configuration fields include Removable Devices, IDE Hard Drive, ATAPI CD-ROM, and Other Boot Device. Removable Device [Legacy Floppy] Configuration options: [Disabled] [Legacy Floppy] [LS120] [ZIP-100] [ATAPI MO] IDE Hard Drive This field allows you to select which IDE hard disk drive to use in the boot sequence. Pressing [Enter] will show the product IDs of all connected IDE hard disk drives. ATAPI CD-ROM This field allows you to select which ATAPI CD-ROM drive to use in the boot sequence. Pressing [Enter] will show the product IDs of all your connected ATAPI CD-ROM drives. Other Boot Device Select [INT18 Device (Network)] Configuration options: [Disabled] [SCSI Boot Device] [INT18 Device (Network)] ASUS CUV4X Users Manual 75

4. BIOS SETUP Boot Menu

Plug & Play O/S [No] This field allows you to use a Plug-and-Play (PnP) operating system to configure the PCI bus slots instead of using the BIOS. When [Yes] is selected, interrupts may be reassigned by the OS. When a non-PnP OS is installed or you want to prevent reassigning of interrupt settings, select the default setting of [No]. Configuration options: [No] [Yes] Reset Configuration Data [No] The Extended System Configuration Data (ESCD) contain information about non-PnP devices. It can also hold the complete record of how the system was configured the last time it was booted. Select [Yes] only if you want to clear these data during the Power-On Self Test (POST). Configuration options: [No] [Yes] Boot Virus Detection [Enabled] This field allows you to set boot virus detection, ensuring a virus-free boot sector. The system halts and displays a warning message when it detects a virus. If this occurs, you can either allow the operation to continue or use a virus-free bootable floppy disk to restart and investigate your system. Configuration options: [Disabled] [Enabled] Quick Power On Self Test [Enabled] This field speeds up the Power-On-Self Test (POST) routine by skipping retesting a second, third, and fourth time. Configuration options: [Disabled] [Enabled] Boot Up Floppy Seek [Enabled] When enabled, the BIOS will seek the floppy disk drive to determine whether the drive has 40 or 80 tracks. Configuration options: [Disabled] [Enabled]