ASUS CUWE User Manual

®

CUWE

Intel® 810E ATX 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 MERCHANT ABILITY 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.

• QuickStart and JumperFree are trademarks of ASUSTeK Computer Inc.

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

• IBM and OS/2 are registered trademarks of International Business Machines.

• XGstudio and SoftSynthesizer are registered trademarks of Yamaha 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.
The product name and revision number are both printed on the product itself. Manual revi-

sions 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 MA Y APPEAR IN THIS MANUAL, INCLUD­ING THE PRODUCTS AND SOFTWARE DESCRIBED IN IT.

Copyright © 1999 ASUSTeK COMPUTER INC. All Rights Reserved.

Product Name: ASUS CUWE
Manual Revision: 1.08 E473
Release Date: November 1999

2 ASUS CUWE 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]
BBS: [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 CUWE 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 CUWE Motherboard................................................. 8

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

2.1.2 Optional Components ........................................................ 9

2.1.3 Performance ..................................................................... 10

2.1.4 Intelligence....................................................................... 11

2.2 Features and Component Locations.......................................... 12

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 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 .............................. 28

3.7.3 Assigning DMA Channels for ISA Cards ........................ 30

3.7.4 Audio Modem Riser (AMR) Slot .................................... 30

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

3.9 Starting Up the First Time ........................................................ 45

4. BIOS SETUP..................................................................................... 47

4.1 Managing and Updating Your BIOS ......................................... 47

4.1.1 Upon First Use of the Computer System ......................... 47

4.1.2 Updating BIOS Procedures.............................................. 48

4.2 BIOS Setup Program ................................................................ 51

4.2.1 BIOS Menu Bar ............................................................... 52

4.2.2 Legend Bar....................................................................... 52

4.3 Main Menu................................................................................ 54

4.3.1 Primary & Secondary Master/Slave ................................ 55

4.4 Advanced Menu ........................................................................ 60

4.4.1 Chip Configuration .......................................................... 64

4.4.2 I/O Device Configuration ................................................ 67

4.4.3 PCI Configuration............................................................ 69

4.4.4 Shadow Configuration ..................................................... 72

4 ASUS CUWE User’s Manual

CONTENTS

4.5 Power Menu .............................................................................. 73

4.5.1 Power Up Control ............................................................ 75

4.5.2 Hardware Monitor............................................................ 77

4.6 Boot Menu ................................................................................ 78

4.7 Exit Menu ................................................................................. 80

5. SOFTWARE SETUP ........................................................................ 83

5.1 Operating Systems .................................................................... 83

5.2 Starting Windows For the First Time........................................ 83

5.3 ASUS Smart Motherboard Support CD.................................... 85

5.4 LDCM Local Setup................................................................... 86

5.5 LDCM Administrator Setup...................................................... 88

5.6 ASUS PC Probe ........................................................................ 91

5.7 ASUS LiveUpdate .................................................................... 92

5.8 Drivers ...................................................................................... 93

5.9 Other ......................................................................................... 94

5.10 Uninstalling Programs ............................................................ 100

6. SOFTWARE REFERENCE .......................................................... 103

6.1 Display Properties ................................................................... 103

6.2 ASUS PC Probe ...................................................................... 107

6.3 ASUS LiveUpdate .................................................................. 112

6.4 Using Yamaha XGstudio Player ............................................. 113

6.5 Using Yamaha XGstudio Mixer .............................................. 114

6.6 Hardware Information............................................................. 116

7. APPENDIX...................................................................................... 1 17

7.1 PCI-L101 Fast Ethernet Card ................................................. 117

7.2 Modem Riser........................................................................... 119

7.3 Glossary .................................................................................. 121

INDEX .................................................................................................. 127

ASUS CUWE 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 CUWE 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 Product information and specifications

3) HARDWARE SETUP Instructions on setting up the motherboard

4) BIOS SETUP Instructions on setting up the BIOS software

5) SOFTW ARE SETUP Instructions 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,
please contact your retailer.

(1) ASUS Motherboard

Sections/Checklist

1. INTRODUCTION

(1) 40-pin 80-conductor ribbon cable for internal UltraDMA/66 or UltraDMA/

33 IDE drives

(1) Ribbon cable for (1) 5.25” and (2) 3.5” floppy disk drives
(1) Bag of spare jumper caps
(1) Support CD with drivers and utilities
(1) This Motherboard User’s Manual

I/O Shield (for LAN model only)
Serial COM2 connector with bracket (for non-LCD model only)
LCD panel & Serial COM2 connector with bracket (for LCD model only)
ASUS consumer infrared set (optional)
ASUS IrDA-compliant infrared module (optional)
ASUS PCI-L101 Wake-On-LAN 10/100 ethernet card (optional)

ASUS CUWE User’s Manual 7

2.1 The ASUS CUWE Motherboard

The CUWE motherboard from ASUS is carefully designed for the demanding PC
user who wants many smart features in a small package.

2.1.1 Specifications

• Latest Intel Processor Support!

2. FEATURES

Specifications

• Latest Intel 810E Chipset! Features 133/100/66MHz FSB Intel 810E chipset

• Multi-Cache! Supports processors with 256, 128, or 0KB Pipelined Burst Level

• Integrated Graphics! Controller supports 3D hyper pipelined architecture, par-

• ASUS Graphics Driver! You can gain about 12% performance over that of the

• V ersatile Memory Support! DRAM controller supports asymmetrical address-

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

2. FEATURES

Intel Pentium III EB 133MHz FSB, Coppermine core FC-PGA
Intel Pentium III E 100MHz FSB, Coppermine core FC-PGA
Intel Celeron 66MHz FSB, Mendocino core PPGA

with the Accelerated Hub Architecture, which provides direct connections be­tween the 810E chipset and subsystems such as IDE controllers, USB control­lers, and PCI add-in cards.

2 Cache.

allel data processing and compression, precise pixel interpolation, full 2D hard­ware acceleration, and motion video acceleration. Onboard 4MB 32-bit 133MHz
SDRAM display cache allows up to 1024x768x16bit color for 3D graphics and
1600x1200x8bit color for 2D graphics.

standard graphics driver (2D high-end graphics W inMark) using ASUS’ custom
graphics driver. ASUS custom graphics driver also provides more features and
provides selection of higher refresh rates and resolutions.

ing and three DIMM sockets support Intel PC100-compliant SDRAMs (16, 32,
64, 128, or 256MB) up to 512MB. (supports a maximum of 4 sides)

quency and Vcore voltage all through BIOS setup when JumperFree™ mode is
enabled. Easy-to-use DIP switches instead of jumpers are included incase you
want to manually adjust the processor’s external frequency.

• Smart Slots! Five 32-bit PCI (rev 2.2) with two 16-bit ISA expansion slots, six

PCI with one ISA, or six PCI with no ISA, depending on territory . PCI supports
up to 133MB/s maximum throughput. Each PCI slot can support a Bus Master
PCI card (such as SCSI or LAN cards).

• Latest Low Pin Count Multi-I/O: Provides two high-speed UAR T compatible

serial ports and one parallel port with EPP and ECP capabilities.

• Integrated IDE! Controller supports UltraDMA/66 up to 66MB/s, UltraDMA/

33 up to 33MB/s, and PIO Mode 4 up to 17MB/s.

• Peripheral Wake-Up! Supports Wake-On-LAN, Wake-On-Ring, Keyboard

Wake-Up, and BIOS Wake-Up.

• AMR Slot! Audio Modem Riser slot supports a very affordable audio and/or

modem riser card.

8 ASUS CUWE User’s Manual

2. FEATURES

• Around-the-Clock Intrusion Detection! Supports chassis intrusion monitor-

ing through the ASUS ASIC. The onboard battery supports detection even when
normal power is removed and through a new design, battery drain is even lower
than the RTC used for keeping time!

• Firmware Hub! Provides security and other latest power computing features.

• Monitoring for your PC’s Health! Provided ASUS PC Probe or Intel LDCM

allows PC health monitoring.

• 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.

• Smart BIOS! 4Mbit firmware gives a new easy-to-use interface which provides

more control and protection over the motherboard. Provides Vcore and CPU/
SDRAM frequency adjustments, boot block write protection, and HD/SCSI/MO/
ZIP/CD/Floppy boot selection. Hardware random number generator supports new
security software for data protection and secured Internet transactions.

• Wired for Management (WfM) V2.0! Supports remote monitor, diagnosis,

and management (Alert on LAN 2.0) network configuration.

2. FEATURES

Optional Components

2.1.2 Optional Components

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

• Smart Audio! Software Audio and Hardware AC’97 V2.1 codec compliant with

sample rate conversion form 7kHz to 48kHz. Full audio output can be directed
to the chassis’ internal speaker in order to save space and money while reducing
complications associated with external speakers.

• Smart Networking! Features the Intel 82559 Fast-Ethernet LAN Controller

(fully integrated 10BASE-T/100BASE-TX). Supports TCO function.

• Space Savings! Digital Flat Panel (DFP) Interface gives a direct digital connec-
tion for connecting a digital flat panel (analog flat panel must be connected to
the VGA-out connector) to your PC. This interface transmits sharp, bright im­ages by eliminating digital-to-analog and analog-to-digital conversions, which
can accumulate noise and degrade image quality.

• No Messy Wires! Integrated Consumer IR and Standard IR supports an op-
tional remote control package for wireless interfacing with external peripherals,

personal gadgets, or an optional remote controller.

ASUS CUWE User’s Manual 9

2. FEATURES

Performance

2. FEATURES

2.1.3 Performance

• UltraPerformance! Onboard IDE Bus Master controller with two connectors

that support four IDE devices in two channels. Supports UltraDMA/66, UltraDMA/
33 (IDE DMA Mode 2), PIO Modes 3 & 4, and supports Enhanced IDE devices,
such as Tape Backup, CD-ROM, CD-R/RW, and LS-120 drives.

• Double or Quadruple the IDE T ransfer Speed! IDE transfers using UltraDMA/

33 Bus Master IDE can handle rates up to 33MB/s and up to 66MB/s using
UltraDMA/66 technology. The best of all is that these new technology is com­patible with existing ATA-2 IDE specifications so there is no need to upgrade
current IDE devices or cables.

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

ter buses to memory to CPU.

• SDRAM Optimized Performance! ASUS smart series motherboards support the

new generation memory , Synchronous Dynamic Random Access Memory (SDRAM),
which increases the data transfer rate to 800MB/s max using PC100-compliant
SDRAM.

• ACPI Ready! ACPI (Advanced Configuration and Power Interface) is also imple-

mented on all ASUS smart series motherboards. ACPI provides more Energy
Saving Features for future operating systems (OS) supporting 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 W indows
98, must be used.

• Suspend and Go! Suspend-To-RAM (STR) provides maximum power savings

as an alternative to leaving the computer ON and QuickStart™ so that you do
not fall asleep waiting for system bootup. (STR requires OS support and does
not support ISA cards; ISA cards may fail to work coming out of STR mode.)

• New Compliancy! Both the BIOS and hardware levels of the motherboard 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 . Color­coded connectors and descriptive icons make identification easy as required by
PC’99.

• Highest Audio Quality! AC’97 DAC/ADC built into the audio codec reduces noise

to improve audio quality and performance for a SNR (signal to noise ratio) of
+90dB. These features greatly improve voice synthesis and recognition.

• Extreme Graphics! The integrated motion compensation allows for smooth

MPEG1 or MPEG2 video playback. Fast 3D graphics engine allows for an ex­citing gameplay experience.

10 ASUS CUWE User’s Manual

2. FEATURES

2.1.4 Intelligence

• 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 the fans are set for its normal RPM range and alarm thresholds.

• Temperature Monitoring and Alert! To prevent system overheat and system

damage, this motherboard supports processor thermal sensing and auto-protec­tion.

• Voltage Monitoring and Alert! System voltage levels are monitored to ensure

stable current to critical motherboard components. Voltage specifications are
more critical for future processors, so monitoring is necessary to ensure proper
system configuration and management.

• System Resources Alert! T oday’s operating systems such as Windows 98, W in-

dows 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.

Intelligence

2. FEATURES

• Dual Function Power Button! Through the BIOS, the power button can be

defined as the “Standby” (a.k.a. Suspend or Sleep) button or as the Soft-Off (see
ATX Power Switch Lead in 3.8 External Connectors for more information)
button. Regardless of the setting, pushing the power button for more than 4
seconds will enter the Soft-Off mode.

• 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 any information from their computers from anywhere in the world!

• Message LED (requires ACPI OS support)! Chassis LEDs now act as infor-

mation providers. Through the way a particular LED illuminates, the user can
determine the stage the computer is in. A simple glimpse provides useful infor­mation to the user.

• Peripheral Power Up! Keyboard or Mouse power up can be enabled or dis-

abled through BIOS setup to allow the computer to be powered ON using your
keyboard or mouse.

ASUS CUWE User’s Manual 11

2. FEATURES

2.2 Features and Component Locations

See opposite page for locations.

Location

Processor Support Socket 370 for Coppermine/Mendocino Processors ................ 4

Feature Setting DIP switches.................................................... 8

66MHz to 166MHz bus support (24 external clock settings)

Component Locations

2. FEATURES

Main Memory Maximum 512MB support

Expansion Slots 5 or 6 PCI Slots (depending on territory) ............................... 21

3D Graphics Graphics Memory Controller Hub (GMCH)

Chipsets Intel 810E Integrated Graphics Chipset ................................... 5

Graphics Memory Controller Hub (GMCH)

Intel I/O Controller Hub (ICH) .............................................. 11

4Mb Firmware Hub (FWH) ................................................... 13

Low Pin Count Multi-I/O Chipset .......................................... 12

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

PC100 SDRAM support

1 or 2 ISA Slots (on ISA model only) .................................... 17

PCI-to-ISA Bridge (on ISA model only) ................................ 18

1 Audio Modem Riser (AMR) Slot ........................................ 22

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

1 Floppy Disk Driver Connector .............................................. 9

1 Serial COM2 Header ........................................................... 10

1 Serial COM1 Connector ...................................................... 26

1 Parallel Port Connector ....................................................... 25

2 USB Connectors .................................................................. 27

1 PS/2 Mouse Connector ........................................................ 28

1 PS/2 Keyboard Connector ................................................... 28

1 VGA Monitor Output Connector ......................................... 24

LCD Chipset (on LCD model only) ......................................... 3

LCD Header (on LCD model only).......................................... 2

4MB onboard high-speed SDRAM ........................................ 16

Audio AC’97 V2.1 Audio Codec (optional) ...................................... 20

1 Joystick/MIDI Connector (on audio model only) ............... 23

1 Line Out Connector (on audio model only) ........................ 23

1 Line In Connector (on audio model only) ........................... 23

1 Microphone Connector (on audio model only) ................... 23

Network Features Intel 82559 Fast-Ethernet Chipset (on LAN model only) ...... 19

1 LAN (RJ45) Connector (optional) ...................................... 27

Wake-On-LAN Connector...................................................... 15

Wake-On-Ring Connector ...................................................... 14

Hardware Monitoring System Voltage Monitoring (integrated in ASUS ASIC)

3 Fan Power and Speed Monitoring Connectors

Power ATX Power Supply Connector ................................................. 1

Form Factor ATX, 210mm x 305mm (8.25” x 12”)

12 ASUS CUWE User’s Manual

28
27

26

2. FEATURES

1

2

3

7645

8 9

25

24

23

22
21

20

19

2. FEATURES

Component Locations

18

17

16

NOTE: The ISA model is shown above. ISA slots are optional at the time of
purchase. The model without ISA will have 6 PCI slots.

ASUS CUWE User’s Manual 13

1112131415

10

3. HARDWARE SETUP

3.1 Motherboard Layout

PS/2

T: Mouse
B: Keyboard

Bottom:

USB1
USB

2

Top:

RJ45

VIO

01

01

CPU_FAN

01

COM1

Motherboard Layout

VGA

3. H/W SETUP

Line
Out

Line

Mic

GAME_AUDIO

INTMIC

SPKEAR

PARALLEL PORT

In

In

Audio

Codec

LAN_EN

LAN_PWR

Intel Fast

Ethernet

ATX Power Connector

PWR_FAN

DFP

VIDEO
AUX

CD

TAD

Audio Modem Riser

(AMR)

Audio Codec Setting

Encoder

Socket 370

Intel 810E

Graphics &

Controller Hub

LCD

2 MB

PCI1

PCI2

PCI3

WOL_CON

Memory

(GMCH)

SDRAM

2 MB

SDRAM

Row

CR2032 3V
Lithium Cell

CMOS Power

®

CUWE

Multi-I/O

WOR

DIP

Switches

CHA_FAN

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

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

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

0 1

2 3

3 2

FLOPPY

PRIMARY

SECONDAR Y

Intel I/O

Controller

Hub (ICH)

R180
(Clear COMS)

COM2

SAFE_MD

NO_REBOOT

PCI4

PCI to ISA

Bridge

PCI5

ISA1

4Mbit

Firmware

Hub

PCI6

ISA2

NOTES: Grayed items are optional at the time of purchase.

The PCI/ISA configuration is dependent on territory.

14 ASUS CUWE User’s Manual

JEN

IDELED

ASUS

ASIC

with Hardware

Monitor

CHA

SMB

STB_PWR

IR

PANEL

3. HARDWARE SETUP

3.2 Layout Contents

Motherboard Settings

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

2) VIO p.19 I/O Voltage Setting (Normal/+3.66V)

3) AUDIO CODEC p.19 Onboard Audio Setting (Enable/Disable)

4) LAN_EN p.20 Onboard LAN Setting (Enable/Disable)

5) LAN_PWR p.20 Onboard LAN Power Setting (Normal/Standby)

6) SAFE_MD p.21 Safe Mode (Normal/Safe Mode)

7) NO_REBOOT p.21 Automatic Timeout Reboot (Normal/No Reboot)

8) DSW p.22 CPU External Clock (BUS) Frequency Setting

Expansion Slots

1) DIMM1, DIMM2, DIMM3 p.24 168-Pin DIMM Memory Support

2) Socket 370 p.26 Central Processing Unit (CPU) Socket

3) ISA1, ISA2 p.27 16-bit ISA Bus Expansion Slots (optional)

4) PCI1, PCI2, PCI3, PCI4, PCI5 p.27 32-bit PCI Bus Expansion Slots (optional PCI6)

5) AMR p.30 Audio Modem Riser Slot

Connectors

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

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

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

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

5) COM1 p.32 Serial Port COM1 Connector (9-pin male)

6) VGA p.33 Monitor (VGA) Output Connector (15-pin female)

7) GAME_AUDIO p.33 Joystick/MIDI Connector (15-pin female) (optional)

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

9) RJ45 p.33 Fast-Ethernet Port Connector (RJ45) (optional)

10) PRIMARY/SECONDARY p.34 Primary/Secondary IDE Connectors (Two 40-1pins)

11) FLOPPY p.34 Floppy Disk Drive Connector (34-1pins)

12) WOL_CON p.35 Wake-On-LAN Connector (3 pins)

13) WOR p.35 Wake-On-Ring Connector (2 pins)

3. H/W SETUP

Layout Contents

14) IDELED p.36 IDE Activity LED (2 pins)

15) CHA_, CPU_, PWR_FAN p.36 Chassis, CPU, Power Supply Fan Connectors (Three 3-pin)

16) VIDEO, AUX, CD, TAD p.37 Internal Audio Connectors (Four 4-pins) (optional)

17) SPKEAR p.37 Internal Speaker Connector (4-pins) (optional)

18) IR (CIR/SIR) p.38 Infrared Module Connector (10-1 pins)

19) COM2 p.38 Serial Port COM2 Header (10-1 pins)

ASUS CUWE User’s Manual 15

20) SMB p.39 SMBus Connector (5-1 pins)

21) DFP p.39 Digital LCD Header (20-1 pins) (optional)

22) INT MIC p.40 Internal Microphone Connector (3 pins)

23) CHA p.41 Chassis Intrusion Connector (2 pins)

24) ATXPWR p.41 ATX Power Supply Connector (20 pins)

25) SPEAKER (PANEL) p.43 System Warning Speaker Connector (4 pins)

26) KEYLOCK (PANEL) p.43 Keyboard Lock Switch Lead (2 pins)

27) PLED (PANEL) p.43 System Power LED Lead (3-1 pins)

28) RESET (PANEL) p.43 Reset Switch Lead (2 pins)

29) PWRSW (PANEL) p.43 ATX Power / Soft-Off Switch Lead (2 pins)

30) SMI (PANEL) p.43 System Management Interrupt Switch Lead (2 pins)

31) LED (PANEL) p.43 System Message LED (2 pins)

Layout Contents

3. H/W SETUP

3. HARDWARE SETUP

16 ASUS CUWE 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

Integrated Circuit (IC) chips. To protect them against damage from static electric­ity, you should follow some precautions whenever you work on your computer.

1. Unplug your computer when working on the inside.

2. Use a grounded wrist strap before handling computer components. If you do
not have one, touch both of your hands to a safely grounded object or to a metal
object, such as the power supply case.

3. Hold components by the edges and try not to touch the IC chips, leads or con­nectors, or other components.

4. Place components on a grounded antistatic pad or on the bag that came with the
component whenever the components are separated from the system.

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.

ON

DSW

ON

010101

3. H/W SETUP

Motherboard Settings

®

CUWE

CUWE DIP Switches

ASUS CUWE User’s Manual 17

12345

1. Frequency Selection

2. Frequency Selection

3. Frequency Selection

4. Frequency Selection

5. Frequency Selection

OFF

3. HARDWARE SETUP

1) JumperFree™ Mode Setting (JEN)

This jumper allows you to enable or disable the JumperFree™ mode. The
JumperFree™ mode allows processor settings to be made through the BIOS
setup (see 4.4 Advanced Menu).

NOTE: For JumperFree™ mode, all dip switches (DSW) must be set to OFF.
Setting JEN

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

010 101

JEN

Motherboard Settings

3. H/W SETUP

CUWE JumperFree™ Mode Setting

®

CUWE

123

Jumper JumperFree

123

(Default)

18 ASUS CUWE User’s Manual

3. HARDWARE SETUP

2) I/O Voltage Setting (VIO)

This jumper allows you to select the voltage supplied to the DRAM, chipset,
PCI, and the CPU’s I/O buffer. The default voltage should be used unless your
processor setting requires a higher voltage.

Setting VIO

Normal [1-2] (default)

3.66V [2-3]

010 101

VIO

123

®

CUWE

Normal

(Default)

123

Add 0.1 Volt

CUWE 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 setting on its default.

3) Onboard Audio Setting (AUDIO CODEC) 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 ISA or 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 ISA or PCI audio expansion card, Onboard AC’97
Audio Controller in 4.4.2 I/O Device Configuration must also be disabled.

3. H/W SETUP

Motherboard Settings

Setting AUDIO CODEC

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

010 10 1

(Default)

SPK

AUD_EN1

ADN#

AUD_EN2

®

CUWE

3
2
1

CUWE Audio Codec Setting

ASUS CUWE User’s Manual 19

DisableEnable

SPK

3
2
1

AUD_EN1

ADN#

AUD_EN2

3. HARDWARE SETUP

4) Onboard LAN Setting (LAN_EN) on LAN model only

The onboard LAN may be enabled or disabled by this jumper.

Setting LAN_EN

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

010 10 1

LAN_EN

®

CUWE

123

123

Motherboard Settings

3. H/W SETUP

CUWE LAN Setting

5) Onboard LAN Power Setting (LAN_PWR) on LAN model only
The onboard LAN power may be set to normal or standby power. Select Nor­mal if you do not have a power supply with 720mA standby power. Selecting
Standby will allow the use of Wake-On-LAN but may not allow system bootup

if the power supply’s standby power is insufficient.

Setting LAN_PWR

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

Enable

(Default)

010 101

Disable

LAN_PWR

®

CUWE

123
Normal

(Default)

123

Standby

(STB)

CUWE LAN Power Setting

20 ASUS CUWE User’s Manual

3. HARDWARE SETUP

6) Safe Mode Setting (SAFE_MD)

Usually Socket 370 processors have locked frequency multiples. In this case,
there is no way to exceed the specified multiple whether through motherboard
settings or BIOS setup. With unlocked socket processors, exceeding the speci­fied multiple is possible through BIOS setup. Exceeding the specified multiple
may result in hanging during bootup. If this occurs, enable Safe Mode to force
a multiple of 2 in order to enter BIOS setup to correct the problem.

Setting SAFE_MD

Normal [1-2] (default)
Safe Mode [2-3]

010101

SAFE_MD

®

CUWE

3
2
1

Normal

(Default)

3
2
1

Safe Mode

CUWE Safe Mode Setting

7) Automatic Timeout Reboot Setting (NO_REBOOT)

The motherboard is set so that when the BIOS detects a hang (timeout) during
bootup, the motherboard will automatically reboot. If rebooting is repeating in­effectively, set this jumper to No Reboot so that auto-reboot will be disabled.

Setting NO_REBOOT

Normal [1-2] (default)
No Reboot [2-3]

010 10 1

NO_REBOOT

®

CUWE

3
2
1

Normal

(Default)

3
2
1

No Reboot

3. H/W SETUP

Motherboard Settings

CUWE Reboot Setting

ASUS CUWE User’s Manual 21

3. HARDWARE SETUP

8) CPU External Frequency Setting (DSW)

This option tells the clock generator what frequency to send to the CPU, DRAM,
and the PCI bus. 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). NOTE: Y ou may set the memory
speed independently from the CPU External Frequency. Depending on your
memory type, select the appropriate “SDRAM” speed along with the appropri­ate “CPU” speed.

NOTE: For JumperFree mode, all dip switches (DSW) must be set to OFF.

Motherboard Settings

3. H/W SETUP

CUWE CPU External Clock
(BUS) Frequency Selection

DSW

CPU

010 10 1

®

CUWE

SDRAM

CPU
SDRAM

CPU
SDRAM

CPU
SDRAM

CPU
SDRAM

ON

12345ON12345ON12345

→

66MHz

→

100MHz

ON

12345ON12345ON12345

→

85MHz

→

128MHz

ON

12345ON12345ON12345

→

112MHz

→

112MHz

ON

12345ON12345ON12345

→

133MHz

→

100MHz

ON

12345

→

166MHz

→

125MHz

(JumperFree Mode)

70MHz

105MHz

100MHz
100MHz

124MHz
124MHz

140MHz
105MHz

75MHz

112MHz

105MHz
105MHz

133MHz
133MHz

149MHz
112MHz

NOTE: Frequency Multiple settings are not available here because usually Socket
370 processors have locked Frequency Multiples. If your processor does not
have a locked Frequency Multiple, you must use CPU Core:Bus Freq. Mul-
tiple in 4.4 Advanced Menu of the BIOS setup to set the Frequency Multiple. If
the Frequency Multiple is locked, setting the Frequency Multiple in BIOS setup
will have no effect.

WARNING! CPU frequencies above 66MHz exceed the specifications for cur-

rent Celeron processors and are not guaranteed to be stable. For Coppermine pro­cessors, CPU frequencies other than the recommended bus frequencies are not
guaranteed to be stable. 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 CUWE User’s Manual

3. HARDWARE SETUP

External Frequency Table for Socket 370 Processors

The following table is for use by experienced motherboard installers only . Overclock­ing can result in system instability or even shortening the life of the processor. Bold
settings are also shown on the previous page.

CPU SDRAM PCI Frequency Selection Switches

(MHz) (MHz) (MHz) 12345

69 103 34 [ON] [ON] [ON] [ON] [ON]

70 105 35 [ON] [OFF] [ON] [ON] [ON]

71 106 35 [ON] [ON] [OFF] [ON] [ON]

66 100 33 [ON] [OFF] [OFF] [ON] [ON]

72 108 36 [ON] [ON] [ON] [OFF] [ON]

75 112 37 [ON] [OFF] [ON] [OFF] [ON]

76 114 38 [ON] [ON] [OFF] [OFF] [ON]

85 127 42 [ON] [OFF] [OFF] [OFF] [ON]

112 112 37 [OFF] [ON] [ON] [ON] [ON]

105 105 35 [OFF] [OFF] [ON] [ON] [ON]

109 109 36 [OFF] [ON] [OFF] [ON] [ON]

100 100 33 [OFF] [OFF] [OFF] [ON] [ON]

117 117 39 [OFF] [ON] [ON] [OFF] [ON]

124 124 41 [OFF] [OFF] [ON] [OFF] [ON]
133 133 44 [OFF] [ON] [OFF] [OFF] [ON]

142 142 47 [OFF] [OFF] [OFF] [OFF] [ON]

3. H/W SETUP

Motherboard Settings

136 102 34 [OFF] [ON] [ON] [ON] [OFF]

140 105 35 [OFF] [OFF] [ON] [ON] [OFF]

143 107 36 [OFF] [ON] [OFF] [ON] [OFF]

133 100 33 [OFF] [OFF] [OFF] [ON] [OFF]

146 110 36 [OFF] [ON] [ON] [OFF] [OFF]

149 112 37 [OFF] [OFF] [ON] [OFF] [OFF]
153 115 38 [OFF] [ON] [OFF] [OFF] [OFF]
166 125 41 [OFF] [OFF] [OFF] [OFF] [OFF]

NOTE: The PCI clock is equal to 1/3 the speed of the SDRAM. PCI’s specifica-

tion allows for up to 33MHz, therefore using PC100-compliant DIMMs and
setting SDRAM to about 100MHz is recommended. For updated processor set­tings, please visit ASUS’ web site (see ASUS CONTACT INFORMATION)

ASUS CUWE User’s Manual 23

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, or 256MB.

This chipset does not support ECC. However, ECC memory modules may still be
used, but the ECC function will not be available.

Memory speed setup is recommended through SDRAM Configuration in 4.4.1

Chip Configuration.
Install memory in any combination as follows:

Location 168-pin DIMM SDRAM Total Memory

DIMM1 Single-Sided

System Memory

3. H/W SETUP

(Rows 0&1) Double-Sided x1
DIMM2 Single-Sided (must be occupied before DIMM3)

(Rows 2&3) Double-Sided (DIMM3 must be empty) x1

3. HARDWARE SETUP

DIMM3 Single-Sided (DIMM2 must be single-sided)
(Rows 3&2) (Double-Sided DIMM cannot be used here!) x1

(must be same or half DIMM2 memory size)

Total System Memory (Max 512MB) =

3.5.1 General DIMM Notes

• When this motherboard operates at 100MHz, PC100-compliant modules must be

used because of the strict timing issues involved under this speed.

• ASUS motherboards support SPD (Serial Presence Detect) DIMMs. This is the

memory of choice for best performance vs. stability.

• SDRAM chips are generally thinner with higher pin density than EDO (Extended

Data Output) chips.

• BIOS shows SDRAM memory on bootup screen.

• Single-sided DIMMs come in 16, 32, 64,128MB; double-sided come in 32, 64,

128, 256MB.

24 ASUS CUWE User’s Manual

3. HARDWARE SETUP

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

0 10 10 1

Lock

88 Pins

®

CUWE

60 Pins

20 Pins

CUWE 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).

3. H/W SETUP

System Memory

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 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 per DIMM socket.

ASUS CUWE 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 (or corner with gold arrow) 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. W ith 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.

NOTE: Do not forget to set the correct Bus Frequency and Multiple (frequency
multiple setting is available only on unlocked processors) for your 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.

010 10 1

®

CUWE

CUWE Socket 370

Celeron

Coppermine

Gold Arrow

Socket 370 CPU (Top) Socket 370 CPU (Bottom)

Notch

26 ASUS CUWE 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 4.4.3 PCI Configuration)

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

3. H/W SETUP

Expansion Cards

ASUS CUWE User’s Manual 27

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.

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

Expansion Cards

3. H/W SETUP

2 N/A Programmable Interrupt

3. HARDWARE SETUP

3* 11 Communications Port (COM2)
4* 12 Communications Port (COM1)
5* 13 Sound Card (sometimes LPT2)
6 14 Floppy Disk Controller
7* 15 Printer Port (LPT1)
8 3 System CMOS/Real Time Clock
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.

28 ASUS CUWE User’s Manual

3. HARDWARE SETUP

Interrupt Request 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 ---- -- -­Onboard audio/AMR/SMBus -- shared -- -­Onboard LAN -- -- shared -­USB -- -- -- shared

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
will arise between the two PCI groups that will make the system unstable or
cards inoperable.

Both ISA and PCI expansion cards may require IRQs. System IRQs are available to
cards installed in the ISA expansion bus first, then any remaining IRQs are available
to PCI cards. Currently, there are two types of ISA cards.

The original ISA expansion card design, now referred to as “Legacy” ISA cards,
requires that you configure the card’s jumpers manually and then install it in any
available slot on the ISA bus. To see a map of your used and free IRQs in Windows
98, the Control Panel icon in My Computer, contains a System icon, which gives
you a Device Manager tab. Double-clicking on a specific hardware device gives
you the Resources tab which shows the Interrupt number and address. Double-click
Computer to see all the interrupts and addresses for your system. Make sure that no
two devices use the same IRQ or your computer will experience problems when
those two devices are in use at the same time.

To simplify this process, this motherboard complies with the Plug and Play (PnP)
specification which was developed to allow automatic system configuration when­ever a PnP-compliant card is added to the system. For PnP cards, IRQs are assigned
automatically from those available.

If the system has both Legacy and PnP ISA cards installed, IRQs are assigned to
PNP cards from those not used by Legacy cards. The PCI and PNP configuration of
the BIOS setup utility can be used to indicate which IRQs are being used by Legacy
cards. For older Legacy cards that does not work with the BIOS, you can contact
your vendor for an ISA Configuration Utility.

3. H/W SETUP

Expansion Cards

An IRQ number is automatically assigned to PCI expansion cards after those used
by Legacy and PnP ISA cards. In the PCI bus design, the BIOS automatically as­signs an IRQ to a PCI slot that has a card in it that requires an IRQ. To install a PCI
card, you need to set something called the INT (interrupt) assignment. Since all the
PCI slots on this motherboard use an INTA #, be sure that the jumpers on your PCI
cards are set to INT A.

ASUS CUWE User’s Manual 29

3.7.3 Assigning DMA Channels for ISA Cards

Some ISA cards, both legacy and PnP, may also need to use a DMA (Direct Memory
Access) channel. DMA assignments for this motherboard are handled the same way
as the IRQ assignment process described earlier . T o select a DMA channel, see PCI/
PNP ISA DMA Resour ce Exclusion in 4.4.3 PCI Configuration. NOTE: The on-
board audio by default uses DMA1.

IMPORTANT: To avoid conflicts, reserve the necessary IRQs and DMAs for

legacy ISA cards (see PCI/PNP ISA IRQ Resource Exclusion in 4.4.3 PCI Con­figuration). Choose Yes in IRQ xx Used By ISA and DMA x Used By ISA for

those IRQs and DMAs you want to reserve).

3.7.4 Audio Modem Riser (AMR) Slot

This connector supports a specially designed audio and/or modem card called an AMR.

Expansion Cards

3. H/W SETUP

Main processing is done through software and controlled by the motherboard’s Intel I/
O Controller Hub (ICH). 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.

3. HARDWARE SETUP

NOTE: An AMR is not included with this motherboard.

0 10 10 1

®

CUWE

CUWE Audio Modem Riser (AMR) Connector

30 ASUS CUWE User’s Manual