CUV4X-D
JumperFree PC133/VC133 133MHz FSB AGP Pro/4X
Dual Socket 370 Motherboard

USERS MANUAL

USER'S NOTICE
No part of this manual, including the products and software described in it, may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language in any form or by any means, except documentation kept by the purchaser for backup purposes, without the express written permission of ASUSTeK COMPUTER INC. (ASUS). ASUS PROVIDES THIS MANUAL AS IS WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OR CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT SHALL ASUS, ITS DIRECTORS, OFFICERS, EMPLOYEES OR AGENTS BE LIABLE FOR ANY INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES (INCLUDING DAMAGES FOR LOSS OF PROFITS, LOSS OF BUSINESS, LOSS OF USE OR DATA, INTERRUPTION OF BUSINESS AND THE LIKE), EVEN IF ASUS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES ARISING FROM ANY DEFECT OR ERROR IN THIS MANUAL OR PRODUCT. Product warranty or service will not be extended if: (1) the product is repaired, modified or altered, unless such repair, modification of alteration is authorized in writing by ASUS; or (2) the serial number of the product is defaced or missing. Products and corporate names appearing in this manual may or may not be registered trademarks or copyrights of their respective companies, and are used only for identification or explanation and to the owners benefit, without intent to infringe. VIA and Apollo Pro133A are trademarks of VIA Technologies, Inc. Intel, LANDesk, Pentium, and Celeron are trademarks of Intel Corporation. IBM and OS/2 are registered trademarks of International Business Machines. Symbios is a registered trademark of Symbios Logic Corporation. Windows and MS-DOS are registered trademarks of Microsoft Corporation. Adobe and Acrobat are registered trademarks of Adobe Systems Incorporated. Trend and ChipAwayVirus are trademarks of Trend Micro, Inc. The product name and revision number are both printed on the product itself. Manual revisions are released for each product design represented by the digit before and after the period of the manual revision number. Manual updates are represented by the third digit in the manual revision number. For previous or updated manuals, BIOS, drivers, or product release information, contact ASUS at http://www.asus.com.tw or through any of the means indicated on the following page. SPECIFICATIONS AND INFORMATION CONTAINED IN THIS MANUAL ARE FURNISHED FOR INFORMATIONAL USE ONLY, AND ARE SUBJECT TO CHANGE AT ANY TIME WITHOUT NOTICE, AND SHOULD NOT BE CONSTRUED AS A COMMITMENT BY ASUS. ASUS ASSUMES NO RESPONSIBILITY OR LIABILITY FOR ANY ERRORS OR INACCURACIES THAT MAY APPEAR IN THIS MANUAL, INCLUDING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT. Copyright 2000 ASUSTeK COMPUTER INC. All Rights Reserved.
Product Name: ASUS CUV4X-D Manual Revision: 1.00 E663 Release Date: December 2000
ASUS CUV4X-D Users Manual

ASUS CONTACT INFORMATION

ASUSTeK COMPUTER INC. (Asia-Pacific)

Marketing

Address: Telephone: Fax: Email: 150 Li-Te Road, Peitou, Taipei, Taiwan 112 +886-2-2894-3447 +886-2-2894-3449 info@asus.com.tw

Technical Support

MB/Others (Tel): +886-2-2890-7121 (English) Notebook (Tel): +886-2-2890-7122 (English) Desktop/Server (Tel):+886-2-2890-7123 (English) Fax: +886-2-2893-7775 Email: tsd@asus.com.tw WWW: www.asus.com.tw FTP: ftp.asus.com.tw/pub/ASUS
ASUS COMPUTER INTERNATIONAL (America)
Address: Fax: Email: Fax: Email: WWW: FTP: 6737 Mowry Avenue, Mowry Business Center, Building 2 Newark, CA 94560, USA +1-510-608-4555 tmd1@asus.com +1-510-608-4555 tsd@asus.com www.asus.com ftp.asus.com/Pub/ASUS
ASUS COMPUTER GmbH (Europe)
Address: Fax: Email: Hotline: Fax: Support (Email): WWW: FTP: Harkortstr. 25, 40880 Ratingen, BRD, Germany +49-2102-442066 sales@asuscom.de (for marketing requests only) MB/Others: +49-2102-9599-0 Notebook: +49-2102-9599-10 +49-2102-9599-11 www.asuscom.de/de/support (for online support) www.asuscom.de ftp.asuscom.de/pub/ASUSCOM

CONTENTS

1. INTRODUCTION.... 7 1.1 How This Manual Is Organized... 7 1.2 Item Checklist... 7 2. FEATURES... 8 2.1 ASUS CUV4X-D Motherboard... 8 2.1.1 Specifications... 8 2.1.2 Performance... 10 2.1.4 Intelligence... 11 2.2 Motherboard Components... 12 2.2.1 Component Locations.. 13 3. HARDWARE SETUP... 14 3.1 Motherboard Layout... 14 3.2 Layout Contents... 15 3.3 Hardware Setup Procedure.. 16 3.4 Motherboard Settings... 16 3.5 System Memory... 21 3.5.1 General DIMM Notes.. 21 3.5.2 Memory Installation.. 22 3.6 Central Processing Unit (CPU).. 23 3.6.1 CPU Installation... 24 3.7 Expansion Cards.. 25 3.7.1 Installing an Expansion Card.. 25 3.7.2 Assigning IRQs for Expansion Cards.. 26 3.7.3 Accelerated Graphics Port (AGP) Pro Slot.. 27 3.8 Connectors... 29 3.8.1 External Connectors.. 29 3.8.2 Internal Connectors... 31 3.9 Starting Up the First Time... 39

Reprinted from the Code of Federal Regulations #47, part 15.193, 1993. Washington DC: Office of the Federal Register, National Archives and Records Administration, U.S. Government Printing Office.
Canadian Department of Communications Statement
This digital apparatus does not exceed the Class B limits for radio noise emissions from digital apparatus set out in the Radio Interference Regulations of the Canadian Department of Communications. This Class B digital apparatus complies with Canadian ICES-003. Cet appareil numrique de la classe B est conforme la norme NMB-003 du Canada.

1. INTRODUCTION

This manual is divided into the following sections: 1. 2. 3. 4. 5. 6. 7. INTRODUCTION FEATURES HARDWARE SETUP BIOS SETUP SOFTWARE SETUP SOFTWARE REFERENCE APPENDIX Manual information and checklist Production information and specifications Instructions on setting up the motherboard. Instructions on setting up the BIOS Instructions on setting up the included software Reference material for the included software Optional items and general reference

1.2 Item Checklist

Check that your package is complete. If you discover damaged or missing items, contact your retailer. Package Contents (1) ASUS Motherboard (1) 40-pin 80-conductor ribbon cable for internal UltraDMA/66 or UltraDMA/33 IDE drives (1) Ribbon cable for two 3.5 floppy disk drives (1) CPU terminator (1) ASUS Support CD with drivers and utilities (1) Bag of spare jumper caps (1) ASUS 2-port USB Connector Set (1) IDE cable (1) Users Manual Optional Items ASUS Modem MR ASUS IrDA-compliant infrared module ASUS PCI-L101 Wake-On-LAN 10/100 Ethernet Card
1. INTRODUCTION Manual / Checklist
1.1 How This Manual Is Organized

2. FEATURES

2.1 ASUS CUV4X-D Motherboard
The ASUS CUV4X-D motherboard is targeted diversely for home PCs and entrylevel workstations. Powered by dual Intel Pentium III processors and bundled with advanced features to provide superlative performance, the CUV4X-D efficiently complies with todays demand for a flexible system.

2.1.1 Specifications

Latest Processor Support 133MHz FSB Coppermine core FC-PGA Intel Pentium III Intel Pentium III 100MHz FSB Coppermine core FC-PGA North Bridge System Chipset: Features the VIA VT82C694XDP system controller PCI-to-ISA bridge with support for AGP 4X/2X mode; 133/100MHz Front Side Bus (FSB); and 133MHz memory bus. South Bridge System Chipset: VIA VT82C686B PCIset with PCI Super I/O integrated peripheral controller supports UltraDMA/100/66 for burst mode data transfer rates of up to 100MB/sec, and USB controller with root hub for four USB ports. PC133 SDRAM / VC133 VCM / HSDRAM Support: Equipped with four Dual Inline Memory Module (DIMM) sockets to support up to 4GB of memory using Intel PC133/100-compliant or NECs VC133-compliant Virtual Channel (VC) SDRAMs, and Enhanced Memory Systems High-speed DRAMs (HSDRAMs). VC SDRAM and HSDRAM are new DRAM core architectures that dramatically improves the memory systems ability to service high multimedia requirements. JumperFree Mode: Allows processor settings and easy overclocking of frequency and Vcore voltage through BIOS setup when the JumperFree mode is enabled. Easy-to-use DIP switches come with the motherboard board to allow manual adjustment of the processor external/internal frequency. UltraDMA/100 Support: Comes with an onboard PCI Bus Master IDE controller with two connectors that support four IDE devices on two channels. Supports UltraDMA/100, UltraDMA/66, UltraDMA/33, PIO Modes 3 & 4, Bus Master IDE DMA Mode 2, and Enhanced IDE devices, such as DVD-ROM, CD-ROM, CD-R/RW, LS-120, and Tape Backup drives. AGP Pro Slot: Comes with an Accelerated Graphics Port (AGP) Pro slot that supports high performance AGP cards targeted at 3D graphical applications supporting 133MHz 4X mode. The slot is backward compatible with AGP 4X/ 2X cards. Wake-On-LAN: Supports Wake-On-LAN activity through a WOL connector or an optional ASUS PCI-L101 10/100 Fast Ethernet PCI card.

2) 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

110MHz 36MHz

CUV4X-D CPU External Frequency Selection

112MHz 37MHz

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.
3) 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-D 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 Pentium III 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 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 133MHz 133MHz 133MHz 133MHz 133MHz 133MHz 133MHz 100MHz 100MHz 100MHz 100MHz 100MHz 100MHz 100MHz 100MHz

(CPU BUS Freq.) 7 8

[OFF] [OFF] [OFF] [OFF] [OFF] [OFF] [OFF] [OFF] [OFF] [OFF] [OFF] [OFF] [OFF] [OFF] [OFF]

(Freq. Multiple) 3 4

[OFF] [OFF] [OFF] [ON] [OFF] [ON] [OFF] [OFF] [OFF] [OFF] [OFF] [ON] [ON] [OFF] [OFF] [OFF] [OFF] [ON] [ON] [ON] [OFF] [OFF] [OFF] [OFF] [OFF] [OFF] [OFF] [ON] [OFF] [OFF] [OFF] [ON] [OFF] [OFF] [ON] [OFF] [OFF] [OFF] [OFF] [ON] [OFF] [ON] [OFF] [OFF] [OFF] [ON] [ON] [OFF] [ON] [OFF] [OFF] [OFF] [OFF] [OFF] [OFF] [OFF] [OFF] [OFF] [OFF] [OFF] [OFF] [OFF] [OFF] [OFF] [OFF] [ON] [ON] [ON] [ON] [ON] [ON] [ON] [ON] [ON] [ON] [OFF] [OFF] [OFF] [ON] [ON] [OFF] [ON] [OFF] [ON] [ON] [ON] [ON] [ON] [OFF] [OFF] [OFF] [ON] [OFF] [OFF] [OFF] [ON] [OFF] [OFF] [OFF] [OFF] [OFF] [OFF] [ON] [ON] [ON]

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 AGPPro slot Onboard USB controller INT-A shared shared INT-B shared shared INT-C shared INT-D shared shared shared
3.7.3 Accelerated Graphics Port (AGP) Pro Slot
This motherboard has an Accelerated Graphics Port (AGP) Pro slot to support the new generation graphics cards with ultra-high memory bandwidth.
AGP Card without Retention Notch

TOP VIEW

20-pin bay Rib (inside slot)

28-pin bay Rib

CUV4X-D Accelerated Graphics Port (AGP PRO)
CAUTION! The AGP Pro slot is shipped with a warning label over the 20-pin bay. DO NOT remove this label and the safety tab underneath it if you will be using an AGP card without a retention notch. Doing so may cause the card to shift and may cause damage to the card, slot, and motherboard. Remove the label and tab ONLY when you are using an AGP Pro card. Use a rigid tip, such as a pen tip, to dislodge and remove the tab from the bay.

Removing the tab

(This page was intentionally left blank.)
28 ASUS CUV4X-D 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 the motherboard. IMPORTANT: Connect ribbon cables such that the red stripe on the cable matches 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. Carefully 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.

+5.0 Volts +5.0 Volts -5.0 Volts Ground Ground Ground Power Supply On Ground -12.0 Volts +3.3 Volts
CUV4X-D ATX Power Connector AUXPWR
+12.0 Volts +5V Standby Power Good Ground +5V +5.0 Volts +3V Ground +5.0 Volts COM Ground +3.3 Volts +3.3 Volts
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.

Ground SMBDATA +5V

SMBCLK

CUV4X-D SMBus Connector

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.
IRRX GND IRTX SMBDATA +3VSB SMBCLK LOCKKEY NC NC NC +5 V

SIR CIR

NC GND NC CIRRX +5VSB

IRRX GND IRTX

NC GND NC CIRRX +5VSB CHASSIS# EXTSMI# +5V MLEDPCIRST# BATT NC
Standard Infrared (SIR) Front View Back View

IR_CON

CUV4X-D Front Panel Connectors
The following 20-pin PANEL illustration is for items 13-18.
ATX Power Switch* Reset SW

Ground ResetCon

SMI Lead

Message LED

Ground PWR_SW Ground ExtSMI# MLED +5 V PLED

Speaker Connector

SPKR Ground Ground +5V

Power LED

* Requires an ATX power supply.
CUV4X-D System Panel Connectors
13) System Power LED Connector (3-1 pin PWR.LED) This 3-1 pin connector connects to the system power LED. The LED lights up when you turn on the system power, and blinks when the system is in sleep or soft-off mode. 14) System Warning Speaker Connector (4-pin SPEAKER) This 4-pin connector connects to the case-mounted speaker. 15) System Message LED Connector (2-pin MSG.LED) This 2-pin connector is for the system message LED that indicates receipt of messages from a fax/modem. The normal status for this LED is ON, when there is no incoming data signal. The LED blinks when there is data received. The system message LED feature requires an ACPI OS and driver support. 16) System Management Interrupt Connector (2-pin SMI) This 2-pin connector allows you to manually place the system into a suspend mode, or Green mode, where system activity is instantly decreased to save power and to expand the life of certain system components. Attach the casemounted suspend switch this 2-pin connector. 17) ATX Power Switch / Soft-Off Switch Connector (2-pin PWR.SW) The system power is controlled by a momentary switch attached to this connector. Pressing the button switches the system between ON and SLEEP, or ON and SOFT OFF, depending on the BIOS or OS settings. Pressing the button while in the ON mode for more than 4 seconds turns the system off. 18) Reset Switch Connector (2-pin RESET) This 2-pin connector connects to the case-mounted reset switch for rebooting the system without turning off the power switch. This is a preferred method

3.9 Starting Up the First Time
1. After making all the connections, replace the system case cover. 2. Be sure that all switches are off (in some systems, marked with ). 3. Connect the power cord to the power supply located at the back of the system chassis. 4. Connect the power cord to a power outlet that is equipped with a surge protector. 5. Turn on the devices in the following order: a. Monitor b. External SCSI devices (starting with the last device on the chain) c. 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 chassis.) 6. The power LED on the front panel of the system case lights up. For ATX power supplies, the system LED lights up when you press the ATX power switch. If the monitor complies with green standards or if it has a power standby feature,the monitor LED may light up or switch between orange and green after the system LED does. The system then runs the power-on tests. While the tests are running, the BIOS beeps or additional messages appears 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 Connectors
7. At 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 does not appear when shutting down with ATX power supplies.

Manually enter the number of cylinders, heads and sectors per track for the drive. Refer to the drive documentation or on the drive label 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 disregarding cylinders, heads, or sectors. Note that LBA Mode is necessary for drives with more than 504MB storage capacity. Configuration options: [LBA] [LARGE] [Normal] [Match Partition Table] [Manual] Cylinders This field configures the number of cylinders. Refer to the drive documentation to determine the correct value to enter into this field. NOTE: To make changes to this field, set the Type field to [User Type HDD] and the Translation Method field to [Manual].
Head This field configures the number of read/write heads. Refer to the drive documentation to determine the correct value to enter into this field. NOTE: To make changes to this field, set the Type field to [User Type HDD] and the Translation Method field to [Manual]. Sector This field configures the number of sectors per track. Refer to the drive documentation to determine the correct value to enter into this field. NOTE: To make changes to this field, set the Type field to [User Type HDD] and the Translation Method field to [Manual]. CHS Capacity This field shows the drives maximum CHS capacity as calculated by the BIOS based on the drive information you entered. Maximum LBA Capacity This field shows the drives maximum LBA capacity as calculated by the BIOS based on the drive information you entered. Multi-Sector Transfers [Maximum] This option automatically sets the number of sectors per block to the highest number that the drive supports. Note that when this field is automatically configured, the set value may not always be the fastest value for the drive. You may also manually configure this field. Refer to the documentation that came with the hard drive to determine the optimum value and set it manually. NOTE: To make changes to this field, set the Type field to [User Type HDD]. Configuration options: [Disabled] [2 Sectors] [4 Sectors] [8 Sectors] [16 Sectors] [32 Sectors] [Maximum] SMART Monitoring [Disabled] This filed allows you to enable or disable the S.M.A.R.T. (Self-Monitoring, Analysis and Reporting Technology) system that utilizes internal hard disk drive monitoring technology. This parameter is normally disabled because the resources used in the SMART monitoring 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, set the Type field to [User Type HDD]. Configuration options: [0] [1] [2] [3] [4] [5] [Disabled] ASUS CUV4X-D Users Manual 51

Halt On [All Errors] This field specifies the types of errors that will cause the system to halt. Configuration options: [All Errors] [No Error] [All but Keyboard] [All but Disk] [All but Disk/ Keyboard] Installed Memory [XXX MB] This field automatically displays the amount of conventional memory detected by the system during the boot process. ASUS CUV4X-D Users Manual 53

4.4 Advanced Menu

CPU Speed [Manual] When the motherboard is set to JumperFree mode, this field allows you to select the internal frequency of your CPU. Available options include multiples of 66, 100, and 133. Select [Manual] if you want to make changes to the two subsequent fields. Note that selecting a frequency higher than the CPU manufacturer recommends may cause the system to hang or crash.
Multiples of 100 (for 100MHz FSB)
4. BIOS SETUP Advanced Menu
Multiples of 133 (for 133MHz FSB)
CPU : System Frequency Multiple (when CPU Speed is set to [Manual]) This field is for unlocked processors only. If your processor frequency multiple is detected locked, you cannot access this field. This field sets the frequency multiple between the CPUs internal frequency (CPU speed) and external frequency. Set this field in conjunction with System/PCI Frequency (MHz) to match the speed of the CPU. Configuration options: [2.0x] [2.5x] [3.0x].[7.0x] [7.5x] [8.0x] System/PCI Frequency (MHz) (when CPU Speed is set to [Manual]) This feature tells the clock generator what frequency to send to the system bus and PCI bus. The bus frequency (external frequency) multiplied by the bus multiple equals the CPU speed.
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 that appear in the popup menu vary according to the System/ PCI Frequency (MHz). 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 CPU 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 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.
PS/2 Mouse Function Control [Auto] The default setting [Auto] allows the system to detect a PS/2 mouse at startup. If a mouse is detected, the BIOS assigns IRQ12 to the PS/2 mouse. Otherwise, IRQ12 can be used for expansion cards. When you set this field to [Enabled], BIOS always reserves IRQ12, whether or not a PS/2 mouse is detected at startup. Configuration options: [Enabled] [Auto]

BIOS Update [Enabled] This field functions as an update loader integrated into the BIOS to supply the processor with the required data. When set to [Enabled], the BIOS loads the update on all processors during system bootup. Configuration options: [Disabled] [Enabled]
USB Legacy Support [Auto] This motherboard supports Universal Serial Bus (USB) devices. The default of [Auto] allows the system to detect a USB device at startup. If detected, the USB controller is enabled. If not detected, the USB controller is disabled. When you set this field to [Disabled], the USB controller is disabled whether you are using a USB device or not. Configuration options: [Disabled] [Enabled] [Auto] OS/2 Onboard Memory > 64M [Disabled] When using OS/2 operating systems with installed DRAM of greater than 64MB, you need to set this option to [Enabled]. Otherwise, leave to the default setting [Disabled]. Configuration options: [Disabled] [Enabled]
Notes for JumperFree Mode
CPU Upgrade/Reinstallation To ensure that the system can enter BIOS Setup after changing the processor, the system starts up running at a bus speed of 66MHz and a fail-safe CPU internal frequency (4x66MHz for the Intel Coppermine processor or 2x66MHz for non-Coppermine processors). Then it automatically takes you to the Advanced menu with a popup menu of all the possible CPU internal frequencies.
4. BIOS SETUP JumperFree Mode
For processors with locked frequency multiplier
For processors with unlocked frequency multiplier System Hangup If the system crashes or hangs due to improper frequency settings, power OFF the system and restart. The system starts up in safe mode running at a bus speed of 66MHz and enters the BIOS Setup.
Cause for Hangup: Improper CPU Speed
Cause for Hangup: Improper CPU: System Frequency Multiple (For processors with unlocked frequency multiplier only)
Cause for Hangup: Improper System/SDRAM Frequency Ratio

4.4.1 Chip Configuration

(Scroll down to see more items as shown here.) SDRAM Configuration [By SPD] This sets the optimal timings for items 25, depending on the memory modules that you are using. The default setting is [By SPD], which configures items 25 by reading the contents in the SPD (Serial Presence Detect) device. The EEPROM on the memory module stores critical parameter information about the module, such as memory type, size, speed, voltage interface, and module banks. Configuration options: [User Define] [7ns (143MHz)] [8ns (125MHz)] [By SPD] SDRAM CAS Latency This controls the latency between the SDRAM read command and the time that the data actually becomes available. NOTE: This field appears only when you set the SDRAM Configuration to [User Defined]. SDRAM RAS Precharge Time This controls the idle clocks after issuing a precharge command to the SDRAM. NOTE: This field appears only when you set the SDRAM Configuration to [User Defined]. SDRAM RAS to CAS Delay This controls the latency between the SDRAM active command and the read/write command. NOTE: This field appears only when you set the SDRAM Configuration to [User Defined]. SDRAM Active to Precharge Time To make changes to this field, set the SDRAM Configuration field to [User Defined]. 58 ASUS CUV4X-D Users Manual

4. BIOS SETUP Chip Configuration
Read Around Write [Enabled] Setting this field to [Enabled] allows the memory controller to store write data in its buffer whenever the CPU issues a write command. The next time the CPU needs the data, it retrieves the data from the memory buffer without accessing the SDRAM. Configuration options: [Disabled] [Enabled] CPU-DRAM Back-Back Transaction [Enabled] Configuration options: [Enabled] [Disabled] Delayed Transaction [Disabled] When set to [Enabled], this feature frees the PCI bus when the CPU is accessing 8-bit ISA cards. This process normally consumes about 50-60 PCI Clocks without PCI delayed transaction. Set this field to [Disabled] when using 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 feature combines 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] DRAM Read Latch Delay [1 ns] Configuration options: [0.0 ns] [0.5 ns] [1.0 ns] [1.5 ns] AGP Capability [4X Mode] This motherboard supports the AGP 4x interface that transfers video data at 1066MB/s. AGP 4x is backward-compatible, so you may leave the default [4X Mode] on even if you are using an AGP 1x or 2x video card. When set to [1X Mode], the AGP interface only provides 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 only provides 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 Window Size [32MB] This feature allows you to select the size of mapped memory for AGP graphic data. Configuration options: [4MB] [8MB] [16MB] [32MB] [64MB] [128MB] [256MB]
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 does not support this feature, otherwise the system may not boot. Configuration options: [UC] [USWC] Onboard PCI IDE Enable [Both] This field allows tou to enable either the primary IDE channel or secondary IDE channel, or both. You can also set both channels to [Disabled]. 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. Setting the address space to a particular setting makes that memory space unavailable to other system components. Expansion cards can only access memory up to 16MB. Configuration options: [Disabled] [Enabled]

4.4.4 Shadow Configuration
Video ROM BIOS Shadow [Enabled] When enabled, this field allows you to change the video BIOS location from ROM to RAM. Relocating the video BIOS to RAM enhances system performance because information access is faster than in ROM. Configuration options: [Disabled] [Enabled] C8000-DFFFF Shadow [Disabled] These fields are used for shadowing other expansion card ROMs. If you install any expansion card with a built-in ROM, you need to know which addresses the ROM uses to specifically shadow them. Shadowing a ROM reduces the memory available between 640K and 1024K by the amount used for this purpose. Configuration options: [Disabled] [Enabled] 66 ASUS CUV4X-D Users Manual

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.
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] deactivates the power saving features, [User Defined] allows you to set power saving options according to your preference. Configuration options: [User Define] [Disabled] [Min Saving] [Max Saving] IMPORTANT: You should install the Advanced Power Management (APM) utility to keep the system time updated even when the computer enters suspend mode. In DOS environment, you need to add the statement, DEVICE=C:\DOS\POWER.EXE, to the CONFIG.SYS file. In Windows 3.x and Windows 95, you need to install Windows with the APM feature. In Windows 98 or later, APM is automatically installed as indicated by a battery and power cord icon labeled Power Management in the Control Panel. Select the item Advanced in the Power Management Properties dialog box. ASUS CUV4X-D Users Manual 67
4. BIOS SETUP Shadow Configuration
Power Management [User Defined] This field must be enabled to activate the automatic power saving features. When set to [Disabled], the power management features do not function regardless of the other settings on this menu. The [User Defined] option allows you to make your own selections in the Power menu. When set to [Max Saving], system power conserved to its greatest amount. The Suspend Mode field is then be set to a predefined value that ensures maximum power savings.

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 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 Power Menu

4.5.1 Power Up Control
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.

When ASUS PC Probe starts, a splash screen appears allowing you to select whether to show the screen again when you open PC Probe or not. To bypass this startup screen, clear the Show up in next execution check box.
To open ASUS PC Probe, click the Windows Start button, point to Programs, and then ASUS Utility, and then click Probe Vx.xx.
The PC Probe icon appears on the taskbar system tray indicating that ASUS PC Probe is running. Clicking the icon allows you to see the status of your PC.
6. S/W REFERENCE ASUS PC Probe
6.1.2 Using ASUS PC Probe

Monitoring

Monitor Summary Shows a summary of the items being monitored.
Temperature Monitor Shows the PC temperature (for supported processors only).
Temperature Warning threshold adjustment (Move the slider up to increase the threshold level or down to decrease the threshold level)
Fan Monitor Shows the PC 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 PC voltages.
Settings Lets you set threshold levels and polling intervals or refresh times of the PCs temperature, fan rotation, and voltages.
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.

CPU Cooling System Setup

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 PC memory load, memory usage, and paging file usage.
Device Summary Shows a summary of devices present 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.

PlusSOYOSYK7VEMProSOYOSYK7VIASOYOSYK7VLMBSOYOSYK7VTAProSOYO SYP4VAL(VersionM)SOYOSYP4VGASOYOSYTISUSupermicro370DDESupermicro 370SSA/370SSE/370SSM/370SSRSupermicroP3TSSE/P3TSSA/P3TSSRSupermicro P4SBA+/P4SBA/P4SBE/P4SBM/P4SBRSupermicroSuperServer5010E(SYS5010E0)Supermicro SuperServer5010H(SYS5010H0)SupermicroSuperServer5011E(SYS5011E0)Supermicro SuperServer5011H(SYS5011H0)SupermicroSuperServer5012B6(SYS5012B6)Supermicro SuperServer5012BE(SYS5012BE)TyanComputersTiger200T(S2505)/(S2505TDNGR)Tyan ComputersTiger230/Tiger230T(S2507D)/(S2507T)TyanComputersTrinity450 (S2507S)TyanComputersTrinityI845(S2090)TyanComputersTrinityK7(S2380)Tyan ComputersTrinityKT(S2390)TyanComputersTrinityKTA(S2390B). ProductDescription StorageCapacity UpgradeType
KingstonValueRAMmemory512MBDIMM168PINSDRAM

FormFactor

Technology MemorySpeed DataIntegrityCheck CASLatency Features

Generic SDRAM

512MB DIMM168PIN

133MHz(PC133)

NonECC CL3

Unbuffered 3.3V Gold

SupplyVoltage LeadPlating

ManufacturerWarranty

Limitedlifetimewarranty(Germany,AustriaandFrance10years)

ExtendedSpecs

General
StorageCapacity UpgradeType

512MB Generic

Memory

DRAM SDRAM DIMM168PIN

Technology ModuleHeight(inch) MemorySpeed CASLatency

1.15 133MHz(PC133) CL3

DataIntegrityCheck RAMFeatures
NonECC Unbuffered 64x64 3.3V Gold
ModuleConfiguration SupplyVoltage LeadPlating

Expansion/Connectivity

CompatibleSlots

1xmemoryDIMM168PIN

Service&ampSupport
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