2. FEATURES Specifications
Wake-On-Ring Connector: Supports Wake-On-Ring activity through a PCI modem card through a WOR connector. PC Health Monitoring: Provides an easy way to examine and manage system status information, such as CPU and system voltages, temperatures, and fan status through the onboard hardware ASUS ASIC and the bundled ASUS PC Probe. SMBus: Features the System Management Bus interface used to physically transport commands and information between SMBus devices. PCI/AMR Expansion Slots: Provides five 32-bit PCI (Rev. 2.2) expansion slots that can support Bus Master PCI cards, such as SCSI or LAN cards (PCI supports up to 133MB/s maximum throughput) and one Audio Modem Riser (AMR) slot that supports an audio and/or modem riser card. 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. Smart BIOS: 2MB firmware provides Vcore and CPU/SDRAM frequency adjustments, boot block write protection, and HD/SCSI/MO/ZIP/CD/Floppy boot selection. Enhanced ACPI and 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 a virtual 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. 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 Support: 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 are PC99 compliant. The new PC99 requirements for systems and components are based on the following high-level goals: Support for Plugn-Play compatibility and power management for configuring and managing all system components, and 32-bit device drivers and installation procedures for Windows95/98/NT. Color-coded connectors and descriptive icons make identification easy as required by PC99.

DIP_SW

Jumper Mode
CUV4X-C JumperFree Mode Setting
JumperFree Mode (Default)
NOTE: In JumperFree mode, set all DIP switches (DIP_SW) to OFF.
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

75MHz 37MHz

80MHz 40MHz

83MHz 42MHz

100MHz 33MHz

103MHz 34MHz

105MHz 35MHz

112MHz 37MHz

CUV4X-C CPU External Frequency Selection

115MHz 38MHz

120MHz 40MHz

124MHz 31MHz

133MHz 33MHz

140MHz 35MHz

150MHz 37MHz
NOTE: Overclocking your processor is not recommended. It may result in a slower speed.
WARNING! Frequencies other than the recommended CPU bus frequencies are not guaranteed to be stable.
4) CPU Core:BUS Frequency Multiple (DIP_SW Switches 14) This option sets the frequency multiple between the Internal frequency of the CPU and the CPUs External frequency. These must be set in conjunction with the CPU Bus Frequency.
CUV4X-C CPU Core:Bus Frequency Multiple
Manual CPU Settings NOTE: Disable the JumperFree mode when you are manually setting the CPU frequency through the DIP switches. Set the DIP switches by the Internal speed of your processor as follows:

Intel CPU Model

Pentium III Pentium III Pentium III Pentium III Pentium III Pentium III Pentium III

Freq. Mult. Bus F.

933MHz 866MHz 800MHz 733MHz 667MHz 600MHz 533MHz 800MHz 750MHz 700MHz 650MHz 600MHz 550MHz 500MHz 450MHz 533MHz 500MHz 466MHz 433MHz 400MHz 366MHz 333MHz 300MHz 266MHz 7.0x 6.5x 6.0x 5.5x 5.0x 4.5x 4.0x 8.0x 7.5x 7.0x 6.5x 6.0x 5.5x 5.0x 4.5x 8.0x 7.5x 7.0x 6.5x 6.0x 5.5x 5.0x 4.5x 4.0x 133MHz 133MHz 133MHz 133MHz 133MHz 133MHz 133MHz 100MHz 100MHz 100MHz 100MHz 100MHz 100MHz 100MHz 100MHz 66MHz 66MHz 66MHz 66MHz 66MHz 66MHz 66MHz 66MHz 66MHz

3. H/W SETUP Expansion Cards
3.7.2 Assigning IRQs for Expansion Cards
Some expansion cards need an IRQ to operate. Generally, an IRQ must be exclusively assigned to one use. In a standard design, there are 16 IRQs available but most of them are already in use, leaving 6 IRQs free for expansion cards. If your motherboard has PCI audio onboard, an additional IRQ will be used. If your motherboard also has MIDI enabled, another IRQ will be used, leaving 4 IRQs free. IMPORTANT: If using PCI cards on shared slots, make sure that the drivers support Share IRQ or that the cards do not need IRQ assignments. Conflicts arise between the two PCI groups that will make the system unstable or cards inoperable. The following table lists the default IRQ assignments for standard PC devices. Use this table when configuring your system and for resolving IRQ conflicts.
Standard Interrupt Assignments
IRQ 2 3* 4* 5* 6 7* 8 9* 10* 11* 12* 13 14* 15* Priority N/A 10 Standard Function System Timer Keyboard Controller Programmable Interrupt Communications Port (COM2) Communications Port (COM1) Sound Card (sometimes LPT2) Floppy Disk Controller Printer Port (LPT1) System CMOS/Real Time Clock ACPI Mode when used IRQ Holder for PCI Steering IRQ Holder for PCI Steering PS/2 Compatible Mouse Port Numeric Data Processor Primary IDE Channel Secondary IDE Channel
*These IRQs are usually available for ISA or PCI devices.
Interrupt Request Table for this Motherboard
PCI slot 1 PCI slot 2 PCI slot 3 PCI slot 4 PCI slot 5 AGP slot Onboard USB controller Onboard audio/AMR INT-A shared shared INT-B shared shared shared shared INT-C shared INT-D shared shared
3.7.3 Accelerated Graphics Port (AGP)
This motherboard has an Accelerated Graphics Port (AGP) slot to support AGP/2X/ 4X graphics cards, such as an ASUS AGP-V6800DDR/64M. CAUTION! To avoid damaging the AGP/2X/4X graphics card, unplug the system power cord before installing the card into the slot.
CUV4X-C Accelerated Graphics Port (AGP)
3.7.4 Audio Modem Riser (AMR) Slot
This connector supports a specially designed audio and/or modem card called an AMR. The motherboard system chipset controls the main processing which is done through software. This provides an upgradeable audio and/or modem solution at an incredibly low cost. There are two types of AMR, primary and secondary. Use a primary AMR card on this motherboard. NOTE: An AMR card is not included with this motherboard.
CUV4X-C Audio Modem Riser (AMR) Connector
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28 ASUS CUV4X-C Users Manual

3.8 Connectors

3.8.1 External Connectors
WARNING! Some pins are used for connectors or power sources. These are clearly distinguished from jumpers in the Motherboard Layout. Placing jumper caps over these connector pins will cause damage to your motherboard. IMPORTANT: Ribbon cables should always be connected with the red stripe to Pin 1 on the connectors. Pin 1 is usually on the side closest to the power connector on hard drives and CD-ROM drives, but may be on the opposite side on floppy disk drives. Check the connectors before installation because there may be exceptions. IDE ribbon cable must be less than 46 cm (18 in.), with the second drive connector no more than 15 cm (6 in.) from the first connector.

PS/2 Mouse (6-pin Female)
2) PS/2 Keyboard Connector (Purple 6-pin PS2KBMS) This connection is for a standard keyboard using an PS/2 plug (mini DIN). This connector does not allow standard AT size (large DIN) keyboard plugs. You may use a DIN to mini DIN adapter on standard AT keyboards.
PS/2 Keyboard (6-pin Female)

3. H/W SETUP Connectors

1) PS/2 Mouse Connector (Green 6-pin PS2KBMS) The system automatically directs IRQ12 to the PS/2 mouse if one is detected. If no mouse is detected, IRQ12 become available to expansion cards. See PS/2 Mouse Function Control in 4.4 Advanced Menu.
3) Universal Serial BUS Ports 1 & 2 (Black two 4-pin USB) Two USB ports are available for connecting USB devices.
Universal Serial Bus (USB) 2
4) Serial Port Connectors (Teal/Turquoise 9-pin COM1 / 9-pin COM2) Two serial ports can be used for pointing devices or other serial devices. To enable these ports, see Onboard Serial Port 1 / Onboard Serial Port 2 in 4.4.2 I/O Device Configuration for the settings.
COM1 COM2 Serial Ports (9-pin Male)
5) 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 Port (25-pin Female)
3.8.2 Internal Connectors
1) 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 cause the IDE LED to light up.

IDELED

TIP: If the case-mounted LED does not light, try reversing the 2-pin plug.

CUV4X-C IDE Activity LED

2) 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).
NOTE: Orient the red markings on the floppy ribbon cable to PIN 1

CUV4X-C Thermal Sensor Connector

IRTX GND

+5V (NC)
10) ATX Power Supply Connector (20-pin block ATXPWR) This connector connects to an ATX power supply. The plug from the power supply fits in only 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 turning the system ON if the power supply cannot support the load. For Wake-On-LAN support, the ATX power supply must supply at least 720mA +5VSB.
+12.0 Volts +5V Standby Power Good Ground +5.0 Volts Ground +5.0 Volts Ground +3.3 Volts +3.3 Volts
+5.0 Volts +5.0 Volts -5.0 Volts Ground Ground Ground Power Supply On Ground -12.0 Volts +3.3 Volts

CUV4X-C SMBus Connector

Ground SMBDATA +5V

SMBCLK

CUV4X-C ATX Power Connector
11) SMBus Connector (5-1 pin SMB) This connector allows you to connect SMBus (System Management Bus) devices. SMBus devices communicate by means of the SMBus with an SMBus host and/ or other SMBus devices. SMBus is a specific implementation of an I2C bus, which is a multi-device bus; that is, multiple chips can be connected to the same bus and each one can act as a master by initiating data transfer.
12) ASUS iPanel Connector (12-1 pin AFPANEL) 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 or SIR connectors for both wireless transmitting and remote control functions through one external infrared module.

AFPANEL

IRRX GND IRTX SMBDATA +3VSB SMBCLK LOCKKEY NC +5 V NC
NC GND NC CIRRX +5VSB CHASSIS# EXTSMI# +5V MLEDPCIRST# BATT NC

SIR CIR

NC GND NC CIRRX +5VSB
Standard Infrared (SIR) Front View Back View

IR_CON

+5V (NC) IRRX
CUV4X-C Front Panel Connectors

IRRX GND IRTX

13) Panel Connector (20-pin SMB) The following PANEL illustration is for items 14-19.

Power LED

PLED +5 V

Speaker Connector

+5V Ground Ground SPKR

Message LED

+5 V MLED ExtSMI# Ground PWR_SW Ground

SMI Lead

ATX Power Switch*
* Requires an ATX power supply.

WARNING! Only update your BIOS if you have problems with your motherboard and you know that the new BIOS revision will solve your problems. Careless updating can result in your motherboard having more problems! 1. Download an updated ASUS BIOS file from the Internet (WWW or FTP) (see ASUS CONTACT INFORMATION on page 3 for details) and save to the disk you created earlier. 2. Boot from the disk you created earlier. 3. At the A:\ prompt, type AFLASH and then press <Enter>. 4. At the Main Menu, type 2 and then press <Enter>. The Update BIOS Including Boot Block and ESCD screen appears. 5. Type the filename of your new BIOS and the path, for example, A:\XXXXX.XXX, and then press <Enter>. NOTE: To cancel this operation, press <Enter>.
6. When prompted to confirm the BIOS update, press Y to start the update.
7. The utility starts to program the new BIOS information into the flash ROM. The boot block will be updated automatically only when necessary. This will minimize the chance that a failed update will prevent your system from booting up. When the programming is finished, Flashed Successfully will be displayed.
8. Follow the onscreen instructions to continue.
WARNING! If you encounter problems while updating the new BIOS, DO NOT turn off your system since this might prevent your system from booting up. Just repeat the process, and if the problem still persists, update the original BIOS file you saved to disk above. If the Flash Memory Writer utility was not able to successfully update a complete BIOS file, your system may not be able to boot up. If this happens, your system will need servicing. ASUS CUV4X-C Users Manual 43
44 ASUS CUV4X-C 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.

Note that a right pointer symbol (as shown in the left view) appears to the left of certain fields. This pointer indicates that a sub-menu can be launched from this field. A sub-menu contains additional options for a field parameter. To call up a submenu, simply move the highlight to the field and press <Enter>. The sub-menu will then immediately appear. Use the legend keys to enter values and move from field to field within a sub-menu just as you would within a menu. Use the <Esc> key to return to the main menu. Take some time to familiarize yourself with each of the legend keys and their corresponding functions. Practice navigating through the various menus and submenus. If you accidentally make unwanted changes to any of the fields, use the set default hot key <F5>. While moving around through the Setup program, note that explanations appear in the Item Specific Help window located to the right of each menu. This window displays the help text for the currently highlighted field. NOTE: The item heading in square brackets represents the default setting for that field.

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]

Other options for Type: are: [CD-ROM] - for IDE CD-ROM drives [LS-120] - for LS-120 compatible floppy disk drives [ZIP-100] - for ZIP-100 compatible disk drives [MO] - for IDE magneto optical disk drives [Other ATAPI Device] - for IDE devices not listed here After using the legend keys to make your selections on this sub-menu, press the <Esc> key to exit back to the Main menu. When the Main menu appears, you will notice that the drive size appear in the field for the hard disk drive that you just configured.

4.3.2 Keyboard Features

Boot Up NumLock Status [On] This field enables users to activate the Number Lock function upon system boot. Configuration options: [Off] [On] Keyboard Auto-Repeat Rate [12/Sec] This controls the speed at which the system registers repeated keystrokes. Options range from 6 to 30 characters per second. Configuration options: [6/Sec] [8/Sec] [10/Sec] [12/Sec] [15/Sec] [20/Sec] [24/Sec] [30/Sec] Keyboard Auto-Repeat Delay [1/4 Sec] This field sets the time interval for displaying the first and second characters. Configuration options: [1/4 Sec] [1/2 Sec] [3/4 Sec] [1 Sec] 54 ASUS CUV4X Users Manual
System/SDRAM Frequency Ratio [Auto] This field determines whether the memory clock frequency is set to be in synchronous or asynchronous mode with respect to the system frequency. The options displayed in the popup menu vary according to the System/ PCI Frequency (MHz). CPU Vcore In JumperFree mode, this field displays the core voltage supplied to the CPU. If you want to set it manually, refer to the CPU documentation. The picture shown here provides only an example of Vcore ranges. CPU Level 1 Cache, CPU Level 2 Cache [Enabled] These fields allow you to choose from the default of [Enabled] or choose [Disabled] to turn on or off the CPUs Level 1 and Level 2 built-in cache. Configuration options: [Disabled] [Enabled] CPU Level 2 Cache ECC Check [Disabled] This function controls the ECC capability in the CPU level 2 cache. Configuration options: [Disabled] [Enabled] Processor Serial Number [Disabled] The Processor Serial Number is a unique number that is added to every Pentium III processor to help verify the identity of the user across the Internet. Set this field to [Enabled] when you need increased security for doing business online or e-commerce. Otherwise, leave it to its default setting [Disabled] for greater anonymity when surfing the Internet. NOTE: This field is available only when a Pentium III processor is installed in the system. BIOS Update [Enabled] This functions as an update loader integrated into the BIOS to supply the processor with the required data. In the default position of [Enabled], the BIOS will load the update on all processors during system bootup. Configuration options: [Disabled] [Enabled] PS/2 Mouse Function Control [Auto] The default of [Auto] allows the system to detect a PS/2 mouse on startup. If detected, IRQ12 will be used for the PS/2 mouse. IRQ12 will be reserved for expansion cards only if a PS/2 mouse is not detected. [Enabled] will always reserve IRQ12, whether on startup a PS/2 mouse is detected or not. Configuration options: [Enabled] [Auto]

Onboard Serial Port 1 [3F8H/IRQ4] Onboard Serial Port 2 [2F8H/IRQ3] These fields allow you to set the addresses for the onboard serial connectors. Serial Port 1 and Serial Port 2 must have different addresses. Configuration options: [3F8H/IRQ4] [2F8H/IRQ3] [3E8H/IRQ4] [2E8H/IRQ10] [Disabled]
Parallel Port Mode [ECP+EPP] This field allows you to set the operation mode of the parallel port. [Normal] allows normal-speed operation but in one direction only; [EPP] allows bidirectional parallel port operation; [ECP] allows the parallel port to operate in bidirectional DMA mode; [ECP+EPP] allows normal speed operation in a two-way mode. Configuration options: [Normal] [EPP] [ECP] [ECP+EPP] ECP DMA Select [3] This field allows you to configure the parallel port DMA channel for the selected ECP mode. This selection is available only if you select [ECP] or [ECP+EPP] in Parallel Port Mode above. Configuration options: [1] [3] [Disabled]
Onboard Peripheral Resource Control
Onboard AC97 Modem Controller, Audio Controller [Auto] [Auto] allows the motherboards BIOS to detect whether you are using any modem/ audio device. If a modem/audio device is detected, the onboard modem/audio controller will be enabled; if no modem/audio device is detected, the onboard modem/audio controller will be disabled. If you have conflicts with the onboard modem/audio controller, you may set the appropriate field to [Disabled]. Configuration options: [Disabled] [Auto] 62 ASUS CUV4X-C Users Manual

4.4.3 PCI Configuration

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]

4. BIOS SETUP 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]
USB Function [Enabled] Set to [Enabled] if you want to use Universal Serial Bus devices. Configuration options: [Disabled] [Enabled] Primary VGA BIOS [PCI Card] This field allows you to select your primary graphics card. Configuration options: [PCI Card] [AGP Card]
PCI 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 DMA Resource Exclusion
PCI UMB 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]
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. BIOS SETUP 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]
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

4. BIOS SETUP 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 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. ASUS CUV4X-C Users Manual

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)]

4. BIOS SETUP Boot Menu

BIOS (Basic Input/Output System) BIOS is a set of routines that affect how the computer transfers data between computer components, such as memory, disks, and the display adapter. The BIOS instructions are built into the computers read-only memory. BIOS parameters can be configured by the user through the BIOS Setup program. The BIOS can be updated using the provided utility to copy a new BIOS file into the EEPROM. Bit (Binary Digit) Represents the smallest unit of data used by the computer. A bit can have one of two values: 0 or 1.

7. APPENDIX Glossary

Boot Boot means to start the computer operating system by loading it into system memory. When the manual instructs you to boot your system (or computer), it means to turn ON your computer. Reboot means to restart your computer. When using Windows 95 or later, selecting Restart from Start | Shut Down. will reboot your computer. Bus Master IDE PIO (Programmable I/O) IDE requires that the CPU be involved in IDE access and waiting for mechanical events. Bus master IDE transfers data to/from the memory without interrupting the CPU. Bus master IDE driver and bus master IDE hard disk drives are required to support bus master IDE mode. Byte (Binary Term) One byte is a group of eight contiguous bits. A byte is used to represent a single alphanumeric character, punctuation mark, or other symbol. COM Port COM is a logical device name used by to designate the computer serial ports. Pointing devices, modems, and infrared modules can be connected to COM ports. Each COM port is configured to use a different IRQ and address assignment. Concurrent PCI Concurrent PCI maximizes system performance with simultaneous CPU, PCI and ISA bus activities. It includes multi-transaction timing, enhanced write performance, a passive release mechanism and support for PCI 2.1 compliant delayed transactions. Concurrent PCI provides increased bandwidth, reduced system latencies, improves video and audio performance, and improves processing of host based applications. CPU (Central Processing Unit) The CPU, sometimes called Processor, actually functions as the brain of the computer. It interprets and executes program commands and processes data stored in memory. Currently, there are socket 370 (for Pentium III FC-PGA and CeleronPPGA), socket 7 (for Pentium, AMD, Cyrix, IBM), slot 1 (for Pentium II and III), slot 2 (for Xeon), and slot A (for AMD) processors. Device Driver A device driver is a special set of instructions that allows the computers operating system to communicate with devices such as VGA, audio, printer, or modem. DOS (Disk Operating System) DOS is the foundation on which all other programs and software applications operate, including Windows. DOS is responsible for allocating system resources such as memory, CPU time, disk space, and access to peripheral devices. For this reason, DOS constitutes the basic interface between you and your computer. DRAM (Dynamic Random Access Memory) There are several different types of DRAM such as, EDO DRAM (Extended Data Output DRAM), SDRAM (Synchronous DRAM), and RDRAM (Rambus DRAM). Flash ROM The flash ROM is designed to be a resident program and can be updated by a specific programming method. Normally, the flash ROM is used for system BIOS which initiates hardware devices and sets up necessary parameters for the OS. Since the contents of flash ROM can be modified, users are able to update the BIOS by themselves. IDE (Integrated Drive Electronics) IDE devices integrate the drive control circuitry directly on the drive itself, eliminating the need for a separate adapter card (in the case for SCSI devices). UltraDMA/ 33 IDE devices can achieve up to 33MB/Sec transfer.