ASUS CUA User Manual

®

CUA

Aladdin TNT2 Socket 370

Motherboard

USER’S 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 T O THE IMPLIED WAR­RANTIES OR CONDITIONS OF MERCHANTABILITY OR FITNESS FOR A P ARTICULAR
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 DA TA, 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.

• ALi, Aladdin TNT2, and combinations thereof are trademarks of Acer Laboratories Inc. (ALi)

• TNT2 is a trademark of NVIDIA Corporation.

• Intel, LANDesk, Pentium, and Celeron are trademarks of Intel Corporation.

• 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.

• Other company and product names may be trademarks or registered trademarks of the respective
companies with which they are associated.

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.

SPECIFICA TIONS AND INFORMA TION CONTAINED IN THIS MANUAL ARE FURNISHED
FOR INFORMA TIONAL USE ONL Y, 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 CUA
Manual Revision: 1.01 E583
Release Date: July 2000

2

ASUS CUA User’s Manual

ASUS CONTACT INFORMATION

ASUSTeK COMPUTER INC. (Asia-Pacific)

Marketing

Address: 150 Li-Te Road, Peitou, Taipei, Taiwan 112
Telephone: [phone]
Fax: [phone]
Email: [e-mail]

Technical Support

MB/Others (Tel): [phone] (English)
Notebook (Tel): [phone] (English)
Desktop/Server (Tel):[phone] (English)
Fax: [phone]
Email: [e-mail]
WWW: www.asus.com.tw
FTP: ftp.asus.com.tw/pub/ASUS

ASUS COMPUTER INTERNATIONAL (America)

Marketing

Address: 6737 Mowry Avenue, Mowry Business Center, Building 2

Newark, CA 94560, USA
Fax: [phone]
Email: [e-mail]

Technical Support

Fax: [phone]
Email: [e-mail]
WWW: www.asus.com
FTP: ftp.asus.com/Pub/ASUS

ASUS COMPUTER GmbH (Europe)

Marketing

Address: Harkortstr. 25, 40880 Ratingen, BRD, Germany
Fax: [phone]
Email: [e-mail] (for marketing requests only)

Technical Support

Hotline: MB/Others: [phone] Notebook: [phone]
Fax: [phone]
Support (Email): www.asuscom.de/de/support (for online support)
WWW: www.asuscom.de
FTP: ftp.asuscom.de/pub/ASUSCOM

ASUS CUA User’s Manual 3

CONTENTS

1. INTRODUCTION 7

1.1 How This Manual Is Organized .................................................. 7

1.2 Item Checklist ............................................................................. 7

2. FEATURES 8

2.1 The ASUS CUA.......................................................................... 8

2.1.1 Specifications ................................................................................ 8

2.1.2 Specifications — Optional Components..................................... 10

2.1.3 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 ....................................................... 17

3.4 Motherboard Settings................................................................ 17

3.5 System Memory (DIMM) ......................................................... 24

3.5.1 General DIMM Notes ................................................................. 24

3.5.2 DIMM Memory Installation ....................................................... 25

3.6 Central Processing Unit (CPU) ................................................. 26

3.7 Expansion Cards ....................................................................... 27

3.7.1 Expansion Card Installation Procedure....................................... 27

3.7.2 Assigning IRQs for Expansion Cards ......................................... 27

3.7.3 Audio Modem Riser (AMR) Slot ............................................... 29

3.7.4 TV/LCD Slot............................................................................... 29

3.8 External Connectors.................................................................. 31

3.9 Starting Up the First Time ........................................................ 43

4. BIOS SETUP 45

4.1 Managing and Updating Your BIOS ......................................... 45

4.1.1 Upon First Use of the Computer System .................................... 45

4.1.2 Updating BIOS Procedures......................................................... 46

4.2 BIOS Setup Program ................................................................ 49

4.2.1 BIOS Menu Bar .......................................................................... 50

4.2.2 Legend Bar.................................................................................. 50

4.3 Main Menu................................................................................ 52

4.3.1 Primary & Secondary Master/Slave ........................................... 53

4.3.2 Keyboard Features ...................................................................... 56

4.4 Advanced Menu ........................................................................ 58

4.4.1 Chip Configuration ..................................................................... 61

4.4.2 I/O Device Configuration ........................................................... 63

4.4.3 PCI Configuration ....................................................................... 65

4.4.4 Shadow Configuration................................................................. 67

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ASUS CUA User’s Manual

CONTENTS

4.5 Power Menu .............................................................................. 68

4.5.1 Power Up Control ....................................................................... 70

4.5.2 Hardware Monitor....................................................................... 72

4.6 Boot Menu ................................................................................ 73

4.7 Exit Menu ................................................................................. 75

5. SOFTWARE SETUP 77

5.1 Install Operating System........................................................... 77

5.2 Start Windows........................................................................... 77

5.3 CUA Series Motherboard Support CD ..................................... 78

5.4 AGP Miniport Driver ................................................................ 79

5.5 ASUS Display Driver ............................................................... 80

5.6 ALi Audio Accelerator Driver .................................................. 81

5.7 AMR Modem Driver ................................................................ 82

5.8 ASUS PC Probe Vx.xx ............................................................. 83

5.9 ASUS Update Vx.xx................................................................. 84

5.10 YAMAHA Soft Synthesizer S-YXG50..................................... 85

5.11 PC-Cillin 98 Vx.xx ................................................................... 86

5.12 ADOBE Acrobat Reader Vx.xx ................................................ 87

5.13 Cyberlink Video and Audio Applications ................................. 88

5.14 Uninstalling Programs .............................................................. 90

6. SOFTWARE REFERENCE 91

6.1 ASUS PC Probe ........................................................................ 91

6.2 YAMAHA SoftSynthesizer S-YXG50...................................... 96

6.3 ASUS LiveUpdate .................................................................... 99

6.4 CyberLink PowerPlayer SE .................................................... 101

6.5 CyberLink PowerDVD ........................................................... 102

6.6 CyberLink V ideoLive Mail..................................................... 103

6.7 ASUS Control Panel ............................................................... 105

6.7.1 Refresh Rate.............................................................................. 105

6.7.2 More Resolution ....................................................................... 106

6.7.3 Information ............................................................................... 106

6.7.4 Color ......................................................................................... 107

6.7.5 Display ...................................................................................... 110

6.7.6 Advanced .................................................................................. 113

7. APPENDIX 125

7.1 PCI-L101 Fast Ethernet Card ................................................. 125

7.2 Modem Riser........................................................................... 127

7.3 ASUS CIDB............................................................................ 129

7.4 Glossary .................................................................................. 131

ASUS CUA User’s Manual 5

FCC & DOC COMPLIANCE

Federal Communications Commission Statement

This device complies with FCC Rules Part 15. Operation is subject to the following
two conditions:

• This device may not cause harmful interference, and

• This device must accept any interference received, including interference that
may cause undesired operation.

This equipment has been tested and found to comply with the limits for a Class B
digital device, pursuant to Part 15 of the FCC Rules. These limits are designed to
provide reasonable protection against harmful interference in a residential installa­tion. This equipment generates, uses and can radiate radio frequency energy and, if
not installed and used in accordance with manufacturer's instructions, may cause
harmful interference to radio communications. However, there is no guarantee that
interference will not occur in a particular installation. If this equipment does cause
harmful interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the interfer­ence by one or more of the following measures:

• Re-orient or relocate the receiving antenna.

• Increase the separation between the equipment and receiver.

• Connect the equipment to an outlet on a circuit different from that to which the
receiver is connected.

• Consult the dealer or an experienced radio/TV technician for help.

WARNING! Any changes or modifications to this product not expressly ap-

proved by the manufacturer could void any assurances of safety or performance
and could result in violation of Part 15 of the FCC Rules.

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 numérique de la classe B est conforme à la norme NMB-003 du Canada.

6

ASUS CUA User’s Manual

1. INTRODUCTION

1.1 How This Manual Is Organized

This manual is divided into the following sections:

1. INTRODUCTION Manual information and checklist

2. FEATURES Production information and specifications

3. HARDWARE SETUP Intructions on setting up the motherboard.

4. BIOS SETUP Intructions on setting up the BIOS

5. SOFTWARE SETUP Intructions on setting up the included software

6. SOFTWARE REFERENCE Reference material for the included software

7. APPENDIX 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.

Manual / Checklist

1. INTRODUCTION

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 one 5.25” and

two 3.5” floppy disk drives
(1) ASUS 2-port USB Connector Set
(1) 9-pin COM2 cable

(1) Bag of spare jumper caps
(1) ASUS Support CD with

drivers and utilities
(1) This Motherboard User’s

Manual

Optional Items

ASUS CIDB chassis intrusion de­tection module

ASUS IrDA-compliant infrared
module

ASUS PCI-L101 Wake-On-LAN
10/100 Ethernet Card

ASUS CUA User’s Manual 7

2.1 The ASUS CUA

The ASUS CUA 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

2. FEATURES

Specifications

• North Bridge System Chipset: Features the ALi M1631™ system controller;

• South Bridge System Chipset: ALi M1535D™ PCIset with PCI Super I/O inte-

2. FEATURES

®

Intel Pentium
Intel Pentium® III 100MHz FSB Coppermine core FC-PGA
Intel Celeron™ 66MHz FSB Mendocino core FC-PGA
Intel Celeron™ 66MHz FSB Mendocino core PPGA

133/100/66MHz Front Side Bus (FSB); and 133MHz memory bus.

grated peripheral controller supports UltraDMA/66, which allows burst mode data
transfer rates of up to 66.6MB/sec; AC97 audio; and four USB ports.

III 133MHz FSB Coppermine core FC-PGA

• PC133 SDRAM / VC133 VCM Support: Equipped with three Dual Inline

Memory Module (DIMM) sockets to support Intel PC133/PC100-compliant (8,
16, 32, 64, 128, 256, or 512MB) or NEC’s VC133-compliant Virtual Channel
(VC) SDRAM up to 1.5GB. VC SDRAM is a new DRAM core architecture that
dramatically improves the memory system’s ability to service, among others, high
multimedia requirements.

• Integrated VGA: Integrated NVIDIA® RIVA TNT2™ 3D/2D graphics engine

supports Digital Flat Panel up to 1280x1024 resolution, NTSC/PAL TV output.
Memory configuration [either Frame Buffer or Shared Memory Architecture
(SMA) mode] options: 32MB (4MB•16•4) or 8MB (1MB•16•4) SDRAM or 0MB.

• LCD/TV Output: The LCD/TV interface can support an optional LCD/TV-out

module for LCD/TV output.

• JumperFree™ Mode: Allows processor settings and easy overclocking of fre-

quency 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 processor’s external frequency.

• Multi-Cache: Supports processors with 512, 256, 128, or 0KB Pipelined Burst

Level 2 cache.

• UltraDMA/66 Support: Comes with an onboard PCI Bus Master IDE control-

ler 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.

8

ASUS CUA User’s Manual

2. FEATURES

• SMBus: Features the System Management Bus interface, which is used to physi-

cally transport commands and information between SMBus devices.

• Wake-On-LAN Connector: Supports Wake-On-LAN activity through an op-
tional 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.

• PCI/AMR Expansion Slots: Provides six 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) and one Audio Modem Riser
(AMR) slot, which supports a very affordable 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.

Specifications

2. FEATURES

• Enhanced ACPI & Anti-Boot Virus Protection: Programmable BIOS (Flash
EEPROM), offering enhanced ACPI for W indows 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 mas-

ter busses to the memory and processor.

• Smart BIOS: 2Mb (4Mb option) 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 suspend­to-RAM and KB/PS/2 mouse power up, eliminating the need to make jumper
adjustments.

• 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.)

• Onboard LED: The onboard LED will light up when there is standby power to
the motherboard. This acts as a reminder to the user to turn OFF the power
before plugging and unplugging devices so as not to damage the motherboard,
peripherals, and/or components.

• Symbios SCSI BIOS: Supports optional ASUS SCSI controller cards through
the onboard SYMBIOS firmware.

ASUS CUA User’s Manual 9

2.1.2 Specifications — Optional Components

The following onboard components are optional at the time of purchase:

• Onboard Audio: AC97 V2.1 compliant Audio Codec with 3D sound circuitry

2.1.3 Performance

• Concurrent PCI: Concurrent PCI allows multiple PCI transfers from PCI mas-

2. FEATURES

Performance

• High-Speed Data Transfer Interface: IDE transfers using UltraDMA/33 Bus

2. FEATURES

and sample rate conversion from 7kHz to 48kHz.

ter busses to the memory and processor.

Master IDE can handle rates up to 33MB/s. This motherboard with its chipset
and support for UltraDMA/66 doubles the UltraDMA/33 burst transfer rate to

66.6MB/s. UltraDMA/66 is backward compatible with both DMA/33 and DMA
and with existing DMA devices and systems so there is no need to upgrade
current EIDE/IDE drives and host systems. (UltraDMA/66 requires a 40-pin
80-conductor cable to be enabled and/or for UltraDMA Mode 4.)

• VCM/SDRAM Optimized Performance: This motherboard supports a new gen-

eration memory, NEC’s 64Mb Virtual Channel Memory (VCM) Synchronous
Dynamic Random Access Memory (SDRAM), which is compatible to the indus­try standard SDRAM. The VCM’s core design provides up to 50% higher
SDRAM speed at reduced power consumption of about 30%. This motherboard
also supports standard SDRAM, which increases the data transfer rate (1.064GB/s
max using PC133-compliant SDRAMs and 800MB/s max using PC100-compli­ant SDRAMs).• New Compliancy: Both the BIOS and hardware levels of ASUS
smart series motherboards meet PC’99 compliancy. The new PC’99 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 W indows 95/98/NT . Color-coded connectors and descriptive icons
make identification easy as required by PC’99.

• ACPI Ready: Advanced Configuration Power Interface (ACPI) provides more

Energy Saving Features for operating systems that support OS Direct Power
Management (OSPM) functionality . W ith 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.

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ASUS CUA User’s Manual

2. FEATURES

2.1.4 Intelligence

• Auto Fan Off: The system fans will power off automatically even in sleep
mode. This function reduces both energy consumption and system noise, and is

an important feature in implementing silent PC systems.

• Dual Function Power Button: Pushing the power button for less than 4 sec-
onds when the system is in the working state places the system into one of two
states: sleep mode or soft-off mode, depending on the BIOS or OS setting (see
PWR Button < 4 Secs in 4.5 Power Menu). When the power button is pressed
for more than 4 seconds, the system enters the soft-off mode regardless of the
BIOS setting.

• Fan Status Monitoring and Alarm: To prevent system overheat and system
damage, the CPU, power supply, and system fans can be monitored for RPM
and failure. All fans are set for its normal RPM range and alarm thresholds.

• PS/2 Keyboard/Mouse Power Up: Keyboard/Mouse Power Up can be enabled
or disabled to allow the computer to be powered on by either pressing the space
bar, Ctrl-Esc, or Power keys (see 4.5.1 Power Up Control).

Intelligence

2. FEATURES

• Message LED (requires ACPI OS support): T urbo LEDs now act as informa-
tion providers. Through the way a particular LED illuminates, the user can de­termine if there are messages waiting in the mailbox. A simple glimpse provides
useful information to the user.

• Remote Ring On (requires modem): This allows a computer to be turned on
remotely through an internal or external modem. With this benefit on-hand, users
can access vital information from their computers from anywhere in the world!

• System Resources Alert: Today’s operating systems such as Windows 95/98/
NT and OS/2, require much more memory and hard drive space to present enor­mous user interfaces and run large applications. The system resource monitor
will warn the user before the system resources are used up to prevent possible
application crashes. Suggestions will give the user information on managing
their limited resources more efficiently.

• T emperature Monitoring and Alert: T o prevent system overheat and system dam-
age, this motherboard supports processor thermal sensing and auto-protection.

• Voltage Monitoring and Alert: System voltage levels are monitored to ensure
stable voltage to critical motherboard components. Voltage specifications are
more critical for future processors, so monitoring is necessary to ensure proper
system configuration and management.

• Chassis Intrusion Detection: Supports chassis-intrusion monitoring through
the ASUS ASIC. A chassis intrusion event is kept in memory on battery power
for more protection.

ASUS CUA User’s Manual 11

2. FEATURES

2.2 Motherboard Components

See opposite page for locations.

Location

Processor Support Socket 370 for Celeron/Coppermine Processors ...................... 1

Feature Setting DIP Switches ................................................... 5

Motherboard Parts

2. FEATURES

Chipsets/Chips North Bridge: ALi M1631™ (Aladdin TNT2)

Main Memory Maximum 1.5GB support

Expansion Slots 6 PCI Slots .............................................................................. 18

(System Controller) .................................................................. 2

South Bridge/Super I/O: ALi M1535D™

(PCI-to-ISA Bridge) ............................................................... 11

2Mb Programmable Flash EEPROM ..................................... 10

3 DIMM Sockets ...................................................................... 6

VC133/PC133 SDRAM support

1 TV/LCD Slot ....................................................................... 20

1 AMR Slot............................................................................ 17

System I/O 2 IDE Connectors (UltraDMA33/66 Support) ......................... 7

1 Floppy Disk Driver Connector .............................................. 8

1 USB Header........................................................................... 9

1 Parallel Port Connector ............................................. (Top) 24

1 Serial COM1 Connector ...................................... (Bottom) 25

1 Serial COM2 Connector ...................................................... 15

USB Connectors (Port 0 & Port 1) ......................................... 26

1 PS/2 Mouse Connector .............................................. (Top) 27

1 PS/2 Keyboard Connector ................................... (Bottom) 27

12

3D Graphics 8/32MB VGA Frame Buffer (optional) .................................... 3

1 VGA Monitor Output Connector ......................... (Bottom) 23

1 Feature (VMI) Connector ................................................... 21

Audio AC’97 V2.1 Audio Codec (optional)...................................... 21

1 Line Out Connector (on audio model only) ........(Bottom) 22

1 Line In Connector (on audio model only) ........... (Bottom) 22

1 Microphone Connector (on audio model only) ... (Bottom) 22

Network Features Wake-On-LAN Connector...................................................... 16

Wake-On-Ring ........................................................................ 13

Others ASUS ASIC ............................................................................ 12

Onboard LED ......................................................................... 14

3 Fan Power and Speed Monitoring Connectors

Power ATX Power Supply Connector ................................................. 4

Form Factor ATX, 305mm x 213mm (12” x 8.4”)

ASUS CUA User’s Manual

2. FEATURES

2.2.1 Component Locations

27
26
25

24

23

22
21

20

1

26

34

2 7

6

85

2. FEATURES

Motherboard Parts

19

18

17

16

15

13

11

1014 912

ASUS CUA User’s Manual 13

3. HARDWARE SETUP

3.1 Motherboard Layout

21.3 cm (8.38 in)

PS/2KBMS

T: Mouse
B: Keyboard

Bottom:

USB1
USB

2

COM2

PARALLEL PORT

Motherboard Layout

3. H/W SETUP

VGA

Line
Out

Line

In

Mic

In

GAME_AUDIO

CD1

VIDEO

AUX

VIO

Socket 370

BS133
JTCPU

TV_LCD

PCI1

VMI

®

ATX Power Connector

2MB

SDRAM

2MB

SDRAM

ALi

ALADDiN

TNT2

CUA

2MB

SDRAM

2MB

SDRAM

IC_

PWR_

FAN

CPU_

FAN

SECONDARY IDE

DIMM1 (64/72 bit, 168-pin module)

DIMM2 (64/72 bit, 168-pin module)

DIMM3 (64/72 bit, 168-pin module)

1

0

3

2

5

(DSW1)

4

DIP

Switches

Row

JTPWR

PRIMARY IDE

FLOPPY

30.5 cm (12.0 in)

CHA_FAN

PCI2

PCI3

ALi

M1535D

South

Bridge

PCI4

LANEN

LANPWR

PCI5

AUDIOEN

SPDIFOUT

Audio Codec Setting

Audio Modem Riser

(AMR)

PCI6

WOL

LED1

COM2

ASUS

with Hardware

WOR

CHASSIS

ASIC

Monitor

JEN

RT1

IR_CON

Grayed components are optional at the time of purchase

CR2032 3V
Lithium Cell

CMOS Power

SMB

USBPWR

FLASH EEPROM

USBPORT

IDELED

PANEL

Clear RTC

(R242)

(Programable BIOS)

14

ASUS CUA User’s Manual

3. HARDWARE SETUP

3.2 Layout Contents

Motherboard Settings

1) JEN p. 18 JumperFree Mode Setting (Disable/Enable)

2) AUDIOCODEC p. 19 Onboard Audio Setting

3) USBPWR p. 20 USB Device Wake Up (+5VSB/+5V)

4) VIO p. 21 Voltage I/O Setting (Normal/Reserved)

5) BS133 p. 21 BUS Selection

6) DSW1 1–4 p. 22 CPU External Frequency Selection

7) DSW1 5-8 p. 23 CPU Core:BUS Frequency Multiple Selection

8) CLRTC p. 57 JumperFree Mode Setting (Disable/Enable)

Expansion Slots/Sockets

1) System Memory p.24 System Memory Support

2) DIMM1/2/3 p.25 DIMM Memory Module Support

3) Socket 370 p.26 CPU Support

4) PCI1/2/3/4/5/6 p.27 32-bit PCI Bus Expansion Slots

5) AMR p.29 Audio Modem Riser Slot

6) TV_LCD p.29 TV/LCD Slot

Connectors

1) PS2KBMS p.31 PS/2 Mouse Port Connector (6 pin-female)

2) PS2KBMS p.31 PS/2 Keyboard Port Connector (6-pin female)

3) USB p.32 Universal Serial Bus Connectors 1 & 2 (Two 4-pin female)

4) PRINTER p.32 Parallel Port Connector (25-pin female)

5) VGA p.32 Monitor Output Connector (15-pin female)

6) COM1/COM2 p.33 Serial Port Connectors (9-pin /10-1 pin male)

7) GAME_AUDIO p.33 Audio Port Connectors (Three 1/8” female) (optional)

8) GAME_AUDIO p.34 Game/MIDI Connector (15-pin female) (optional)

9) PRIMARY IDE p.34 IDE Connectors (Two 40-1 pins)
SECONDARY IDE

10) FLOPPY p. 35 Floppy Disk Drive Port Connector (34 pins)

11) VMI p. 35 Feature (VMI) Connector (26 pins)

12) IR p. 36 Infrared Module Connector (5 pins)

13) ATXPWR p. 36 ATX Power Supply Connector (20 pins)

3. H/W SETUP

Layout Contents

14) IC_PWR_, CPU_,CHA_FAN p. 37 IC, CPU, Chassis Fan Connectors (3 pins)

15) CHASSIS p. 37 Chassis Intrusion Lead (4-1 pins)

16) SMB p. 38 SMBus Connector (5-1 pins)

17) USB2 p. 38 USB Header (10-1 pins)

18) WOL_CON p. 39 Wake-On-LAN Connector (3 pins)

19) WOR p. 39 Wake-On-Ring Connector (2 pins)

ASUS CUA User’s Manual 15

3. HARDWARE SETUP

20) CD_IN, AUX, VIDEO p. 40 Internal Audio Connectors (4 4-pin)

21) IDELED p. 41 IDE Activity LED (2 pins)

22)

PWR.LED (

23) KEYLOCK (PANEL) p. 42 Keyboard Lock SwitchLead (2 pins)

24) SPEAKER (PANEL) p. 42 System Warning Speaker Connector (4 pins)

25) MSG.LED (PANEL) p. 42 System Message LED (2 pins)

26) SMI (PANEL) p. 42 System Management Interrupt Lead (2 pins)

PANEL

)

p. 42 System Power LED Lead (3 pins)

Layout Contents

3. H/W SETUP

27) PWR.SW (PANEL) p. 42 ATX / Soft-Off Switch Lead (2 pins)

28) RESET (PANEL) p. 42 Reset Switch Lead (2 pins)

16 ASUS CUA User’s Manual

3. HARDWARE SETUP

3.3 Hardware Setup Procedure

Before using your computer, you must complete the following steps:

• Check Motherboard Settings

• Install Memory Modules

• Install the Central Processing Unit (CPU)

• Install Expansion Cards

• Connect Ribbon Cables, Panel Wires, and Power Supply

3.4 Motherboard Settings

This section explains in detail how to change your motherboard’s function settings
through the use of switches and/or jumpers.

WARNING! Computer motherboards and expansion cards contain very delicate Inte-

grated 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 remov-

ing system components. Failure to do so may cause severe damage to your mother­board, peripherals, and/or components. The onboard LED when it lits acts as a re­minder that the system is in suspend or soft-off mode and not powered OFF.

3. H/W SETUP

Motherboard Settings

®

CUA

CUA Onboard LED

ASUS CUA User’s Manual 17

ON

Standby

Power

PLED2

OFF

Powered

Off

3. HARDWARE SETUP

Motherboard Feature Settings (DSW)

Besides jumper settings, some of the motherboard’s onboard functions are adjusted
through the DIP switches. The white block represents the switch’s position. The
example below shows all the switches in the OFF position.

Motherboard Settings

3. H/W SETUP

CUA DIP Switches

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 Advanced Menu, BIOS).

IMPORTANT: In JumperFree™ mode, all DIP switches (DSW) must be set to

OFF.

Setting JEN

Enable (JumperFree) [2-3] (default)
Disable (Jumper) [1-2]

678

DSW1

®

CUA

OFF

1: Frequency Selection
2: Frequency Selection
3: Frequency Selection
4: Frequency Selection
5: Frequency Multiple
6: Frequency Multiple
7: Frequency Multiple
8: Frequency Multiple

ON

45

123

®

CUA

Jumper

12

JEN

CUA JumperFree™ Mode Setting

18 ASUS CUA User’s Manual

DSW1

ON

OFF

JumperFree

(Default)

2

3

678
45

123

3. HARDWARE SETUP

2) Onboard Audio Setting (available on audio model only)

The onboard audio CODEC may be enabled or disabled using all of these jump­ers. Disable the onboard audio CODEC if you are using an PCI audio card on any
of the expansion slots or a primary AMR on the AMR slot (see AMR Slot later in
this section). If using an PCI audio expansion card, Onboard AC’97 Audio Con-

troller in Peripheral Setup (BIOS) must also be disabled.

Setting AUDIO CODEC

Disable [1-2] [1-2] [1-2] [1-2]
Enable [2-3] [2-3] [2-3] [2-3] (default)

®

CUA

SPK

ADN#

AUD_EN1

AUD_EN2

SPK

ADN#

AUD_EN1

AUD_EN2

3. H/W SETUP

Motherboard Settings

CUA Audio Codec Setting

2
3

(Default)

1
2

DisableEnable

ASUS CUA User’s Manual 19

3) USB Device Wake Up (USBPWR)

This allows you to disable or enable the USB device wake up function. Set this
jumper to +5VSB if you wish to use your USB devices to wake up your computer.
This feature requires an A TX power supply that can supply at least 2A on the +5VSB
lead. The default is set to +5V because not all computers have the appropriate ATX
power supply . Your computer will not power ON if you set this to +5VSB and do not
have the appropriate ATX power supply. NOTE: This jumper must be set in con­junction with W ake On USB for STR State in Power Up Control (BIOS).

Motherboard Settings

3. H/W SETUP

NOTES

1. For suspend to RAM function, these jumpers must be set to Enable.

2. The total current consumed must NOT exceed the power supply capability
(+5VSB) whether under normal working conditions or in the sleep mode.

Setting USBPWR

+5VSB [1-2] (default)
+5V [2-3]

3. HARDWARE SETUP

®

CUA

CUA USB Power Source

1
2

USBPWR

+5VSB

(Default)

2

+5V

3

20 ASUS CUA User’s Manual

3. HARDWARE SETUP

4) Voltage I/O Setting (VIO)

This jumper allows you to select the voltage supplied to the DRAM, chipset,
AGP, and PCI, among others. The default voltage is set at Normal.

Setting VIO

Normal [1-2] (default)
Reserved [2-3]

VIO

12

Normal

(Default)

®

CUA

2

3

Reserved

CUA Input/Output Voltage Setting

WARNING! Using a higher voltage may help when overclocking but may result in

the shortening of your computer component’s life. It is strongly recommended that
you leave this settting on its default.

5) BUS Selection (BS133)

This jumper allows you to enable support for the VIA Cyrix® III (133MHz
FSB) processor. The default is set at Normal for Intel and VIA Cyrix III (100/
66MHz FSB) processors. For VIA Cyrix III (133MHz FSB) processors, set the
BS133 jumper to [2-3].

3. H/W SETUP

Motherboard Settings

Setting BS133

Normal [1-2] (default) [Intel and VIA Cyrix III (100/66MHz FSB)]
Reserved [2-3] [VIA Cyrix III (133MHz FSB)]

BS133

1

®

CUA

2

Normal

(Default)

2

3

CUA Bus Selection

ASUS CUA User’s Manual 21

6) CPU External Frequency Setting (DSW1 Switches 1–4)

This option tells the clock generator what frequency to send to the CPU, SDRAM,
PCI, and the chipset. This allows the selection of the CPU’s External frequency.
The CPU External Frequency multiplied by the Frequency Multiple equals the
CPU’s Internal frequency (the advertised CPU speed).

IMPORTANT:

Motherboard Settings

3. H/W SETUP

1. In JumperFree mode, all dip switches must be set to OFF.

2. When JumperFree mode is enabled, use BIOS setup in place of these switches

(set CPU Speed in Advanced Menu in BIOS Setup).

3. HARDWARE SETUP

®

CUA

CUA CPU External
Clock (BUS) Frequency
Selection

CPU
PCI

CPU
PCI

CPU
PCI

CPU
PCI

ON

→

66MHz

→

33MHz

→

83MHz

→

41.6MHz

ON

→

110MHz

→

36.6MHz

ON

→

124MHz

→

31MHz

ON

678

4 5

123

68MHz
34MHz

4 5 678

123

100MHz
33MHz

678

4 5

123

112MHz

37.3MHz

678

4 5

123

133MHz

(JumperFree Mode)

33MHz

ON

ON

ON

ON

678

4 5

123

4 5 678

123

678

4 5

123

678

4 5

123

ON

75MHz

37.5MHz

ON

103MHz

34.3MHz

ON

115MHz

38.3MHz

ON

140MHz
35MHz

678

4 5

123

678

4 5

123

678

4 5

123

678

4 5

123

ON

80MHz
40MHz

ON

105MHz

35MHz

ON

120MHz

40MHz

ON

150MHz

37.5MHz

678

4 5

123

678

4 5

123

678

4 5

123

678

4 5

123

NOTE: If your processor does not have a locked Frequency Multiple, you must
use CPU Core:Bus Freq. Multiple in 4.4 Advanced Menu (BIOS) to set the
Frequency Multiple. If the Frequency Multiple is locked, setting the Frequency
Multiple in BIOS setup will have no effect.

WARNING! Premature wearing of the processor may result when overclocking.

Be sure that the DIMM you use can handle the specified SDRAM MHz or else
bootup will not be possible.

22 ASUS CUA User’s Manual

3. HARDWARE SETUP

7) CPU Core:BUS Frequency Multiple (DSW1 Switches 5–8)

This option sets the frequency multiple between the Internal frequency of the
CPU and the CPU’s External frequency. These must be set in conjunction with the

CPU Bus Frequency.

®

CUA

CUA CPU BUS

ON

1.5x(3/2)

ON

3.5x(7/2)

ON

6.0x(6/1)

678

4 5

123

2.0x2(2/1)

678

4 5

123

678

4 5

123

6.5x(13/2)

678

4 5

123

ON

4 5 678

123

ON

4.0x(4/1)

4 5 678

123

ON

678

4 5

123

ON

2.0x(2/1)

678

4 5

123

ON

4.5x(9/2)

678

4 5

123

ON

7.0x(7/1)

678

4 5

123

ON

2.5x(5/2)

678

4 5

123

ON

5.0x(5/1)

678

4 5

123

ON

7.5x(15/2)

3.0x(3/1)

5.5x(11/2)

8.0x(8/1)

Frequency Multiple

Manual CPU Settings (NOTE: JumperFree mode must be disabled )

Set the DIP switches by the Internal speed of your processor as follows:

(CPU BUS Freq.) (Freq. Multiple)

Intel CPU Model

Pentium III 933MHz 7.0x 133MHz [OFF][OFF][OFF][OFF] [ON] [OFF] [ON][OFF]
Pentium III 866MHz 6.5x 133MHz [OFF][OFF][OFF][OFF] [OFF] [ON] [ON][OFF]
Pentium III 800MHz 6.0x 133MHz [OFF][OFF][OFF][OFF] [ON] [ON] [ON] [OFF]
Pentium III 733MHz 5.5x 133MHz [OFF][OFF][OFF][OFF] [OFF][OFF][OFF] [ON]
Pentium III 667MHz 5.0x 133MHz [OFF][OFF][OFF][OFF] [ON] [OFF][OFF] [ON]
Pentium III 600MHz 4.5x 133MHz [OFF][OFF][OFF][OFF] [OFF] [ON] [OFF] [ON]
Pentium III 533MHz 4.0x 133MHz [OFF][OFF][OFF][OFF] [ON] [ON] [OFF] [ON]

Freq. Mult. Bus F. 1 2 3 4 5 6 7 8

ON

ON

ON

678

4 5

123

678

4 5

123

678

4 5

123

3. H/W SETUP

Motherboard Settings

Pentium III 800MHz 8.0x 100MHz [OFF][OFF][OFF] [ON] [ON] [ON] [OFF][OFF]
Pentium III 750MHz 7.5x 100MHz [OFF][OFF][OFF] [ON] [OFF][OFF][ON] [OFF]
Pentium III 700MHz 7.0x 100MHz [OFF][OFF][OFF] [ON] [ON] [OFF] [ON] [OFF]
Pentium III 650MHz 6.5x 100MHz [OFF][OFF][OFF] [ON] [OFF][ON] [ON] [OFF]
Pentium III 600MHz 6.0x 100MHz [OFF][OFF][OFF] [ON] [ON] [ON] [ON] [OFF]
Pentium III 550MHz 5.5x 100MHz [OFF][OFF][OFF] [ON] [OFF][OFF][OFF][ON]
Pentium III 500MHz 5.0x 100MHz [OFF][OFF][OFF] [ON] [ON] [OFF][OFF] [ON]
Pentium III 450MHz 4.5x 100MHz [OFF][OFF][OFF] [ON] [OFF][ON] [OFF] [ON]

Celeron 533MHz 8.0x 66MHz [OFF][OFF] [ON] [ON] [ON] [ON] [OFF][OFF]
Celeron 500MHz 7.5x 66MHz [OFF][OFF] [ON] [ON] [OFF][OFF] [ON] [OFF]
Celeron 466MHz 7.0x 66MHz [OFF][OFF] [ON] [ON] [ON] [OFF] [ON] [OFF]
Celeron 433MHz 6.5x 66MHz [OFF][OFF] [ON] [ON] [OFF] [ON] [ON][OFF]
Celeron 400MHz 6.0x 66MHz [OFF][OFF] [ON] [ON] [ON] [ON] [ON] [OFF]
Celeron 366MHz 5.5x 66MHz [OFF][OFF] [ON] [ON] [OFF][OFF][OFF] [ON]
Celeron 333MHz 5.0x 66MHz [OFF][OFF] [ON] [ON] [ON] [OFF][OFF] [ON]
Celeron 300MHz 4.5x 66MHz [OFF][OFF] [ON] [ON] [OFF] [ON] [OFF] [ON]
Celeron 266MHz 4.0x 66MHz [OFF][OFF] [ON] [ON] [ON] [ON] [OFF] [ON]

ASUS CUA User’s Manual 23

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

3.5 System Memory (DIMM)

NOTE: No hardware or BIOS setup is required after adding or removing memory.
This motherboard uses only Dual Inline Memory Modules (DIMMs). Sockets are

available for 3.3Volt (power level) unbuffered Synchronous Dynamic Random Ac-
cess Memory (SDRAM) of 16, 32, 64, 128MB, 256 or 512MB. to form a memory size
between 16MB and 1.5GB. One side (with memory chips) of the DIMM takes up one
row on the motherboard. This motherboard also supports NEC’s V irtual Channel (VC)

System Memory

3. H/W SETUP

SDRAMs.
To use the chipset’s Error Checking and Correction (ECC) feature, you must use a

DIMM with 9 chips per side (standard 8 chips/side + 1 ECC chip).
Memory speed setup is recommended through Configure SDRAM T iming by SPD

(see Advanced Chipset Setup, BIOS).

Install memory in any combination as follows:

IMPORTANT

•For optimum signal integrity, inserting the DIMMs in the following order is

recommended: DIMM1, DIMM2, DIMM3.

•SDRAMs used must be compatible with the current PC133/PC100/VC133/

VC100 SDRAM specification.

•DO NOT attempt to mix SDRAMs with VCM SDRAMs.

3. HARDWARE SETUP

Location 168-pin DIMM Total Memory

DIMM1 (Rows 0&1) SDRAM 16, 32, 64, 128, 256, 512MB x1
DIMM2 (Rows 2&3) SDRAM 16, 32, 64, 128, 256, 512MB x1
DIMM3 (Rows 4&5) SDRAM 16, 32, 64, 128, 256, 512MB x1

Total System Memory (Max 1.5GB) =

3.5.1 General DIMM Notes

• For the system CPU bus to operate at 133MHz, use only PC133/VC133-com­pliant DIMMs. When this motherboard operates at 133MHz, most system will

not even boot if non-compliant modules are used because of the strict timing is­sues involved under this speed. If your DIMMs are not PC133/VC133-compliant,
set the CPU bus frequency to 100MHz RAM to ensure system stability.

• This motherboard supports SPD (Serial Presence Detect) DIMMs. This is the
memory of choice for best performance vs. stability.

• This motherboard does NOT support registered memory.

• 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.

24 ASUS CUA User’s Manual

3. HARDWARE SETUP

3.5.2 DIMM Memory Installation

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. DIMM mod­ules are longer and have different pin contact on each side and therefore have a
higher pin density. SIMM modules have the same pin contact on both sides.

Lock

20 Pins

60 Pins

®

CUA

88 Pins

3. H/W SETUP

System Memory

CUA 168-Pin DIMM Sockets

The DIMMs must be 3.3V Unbuffered for this motherboard. T o determine the DIMM
type, check the notches on the DIMMs (see figure below).

168-Pin DIMM Notch Key Definitions (3.3V)

DRAM Key Position

RFU

Buffered

Unbuffered

Voltage Key Position

5.0V

Reserved

3.3V

The notches on the DIMM module 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 ask your retailer the correct DIMM type before pur­chasing. This motherboard supports four clock signals.

ASUS CUA User’s Manual 25

3. H/W SETUP

CPU

3. HARDWARE SETUP

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 processor’s

heatsink by regularly checking that your CPU fan is working. W ithout 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 socket’s lever while holding
down the CPU. After the CPU is , install an Intel recommended fan heatsink. Locate
the CPU fan connector (see 3.1 Motherboard Layout or 3.8 Connectors) and con­nect the CPU fan cable to it.

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 clamp-

style processor fan or else damage may occur to the motherboard.

Socket 370 (Top) Socket 370 (Bottom)

Celeron

®

CUA

Notch

Pentium III

CUA Socket 370

Gold Arrow

26 ASUS CUA User’s Manual

3. HARDWARE SETUP

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 system’s cover and the bracket plate on the slot you
intend to use. Keep the bracket for possible future use.

3. Carefully align the card’s connectors and press firmly.

4. Secure the card on the slot with the screw you removed above.

5. Replace the computer system’s cover.

6. Set up the BIOS if necessary
(such as IRQ xx Used By ISA: Yes in PNP AND PCI SETUP)

7. Install the necessary software drivers for your expansion card.

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.

3. H/W SETUP

Expansion Cards

ASUS CUA User’s Manual

27

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 Priority Standard Function

0 1 System Timer
1 2 Keyboard Controller
2 N/A Programmable Interrupt
3* 11 Communications Port (COM2)
4* 12 Communications Port (COM1)
5* 13
6 14 Floppy Disk Controller
7* 15 Printer Port (LPT1)
8 3 System CMOS/Real Time Clock

Expansion Cards

3. H/W SETUP

9* 4 ACPI Mode when enabled
10* 5 IRQ Holder for PCI Steering
11* 6 IRQ Holder for PCI Steering
12* 7 PS/2 Compatible Mouse Port
13 8 Numeric Data Processor
14* 9 Primary IDE Channel
15* 10 Secondary IDE Channel

*These IRQs are usually available for ISA or PCI devices.

3. HARDWARE SETUP

Interrupt Request Table for this Motherboard

Interrupt requests are shared as shown by the following table:

INT-A INT-B INT-C INT-D

PCI slot 1 shared ———
PCI slot 2 — shared ——
PCI slot 3 ——shared —
PCI slot 4 ——— shared
PCI slot 5 ——— shared
PCI slot 6 ——shared —
Onboard VGA shared ———

IMPORTANT: If using PCI cards on shared slots, make sure that the drivers sup-

port “Share IRQ” or that the cards do not need IRQ assignments. Conflicts will arise
between the two PCI groups that will make the system unstable or cards inoperable.

28

ASUS CUA User’s Manual

3. HARDWARE SETUP

3.7.3 Audio Modem Riser (AMR) Slot

This connector supports a specially designed audio and/or modem card called an AMR.
Main processing is done through software and controlled by the motherboard’s sys-
tem chipset. This provides an upgradeable audio and/or modem solution at an incred­ibly low cost. There are two types of AMR, one defined as primary and another de­fined as secondary. This motherboard uses the primary channel so that a secondary
AMR can coexist without the need to disable the onboard CODEC. The motherboard’s
onboard CODEC must be disabled when using a primary AMR.

IMPORTANT: The AMR slot of this motherboard shares the same expansion slot

as PCI Slot 3. Because of this and its location, the slot can only accept a specially
designed AMR card (optional). While a standard AMR card’s bracket is to the left
of the card (facing the expansion slot), the specially-designed AMR card’s bracket
is to the right of the card. For availability, see your vendor or dealer.

®

CUA

CUA Audio Modem Riser Connector

To install the AMR card,
face its components
toward the serial ports.

3.7.4 TV/LCD Slot

This connector supports a specially designed TV/LCD slot to support an ASUS LCD­TV daughter card. This card allows you to connect a digital flat panel, ASUS or third
party TV or video accessories, such as a TV, video capture cards, or television tuners.
The TV/LCD slot eliminates digital-to-analog and analog-to-digital conversions,

resulting in sharper, brighter images.

®

CUA

3. H/W SETUP

Expansion Cards

CUA TV/LCD Slot

NOTE:An ASUS LCD-TV daughter card is not included with this motherboard.

For availability, see your vendor or dealer.

ASUS CUA User’s Manual

29

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3. H/W SETUP

3. HARDWARE SETUP

30

ASUS CUA User’s Manual