ASUS A7M266D User Manual

®

A7M266-D

Dual Socket A 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.

• AMD, Athlon™ are trademarks of Advanced Micro Devices, Inc.

• VIA is a trademark of VIA Technologies, Inc.

• 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 INFORMATION CONT AINED 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 © 2001 ASUSTeK COMPUTER INC. All Rights Reserved.

Product Name: ASUS A7M266-D
Manual Revision: 1.03 E1026
Release Date: May 2002

2

ASUS A7M266-D 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
Newsgroup: csnews.asus.com.tw

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]
Support: [phone]
Notebook Support: +1-877-918-ASUS (2787)
Email: [e-mail]
WWW: www.asus.com

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

ASUS A7M266-D 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 A7M266-D ................................................................. 8

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

2.1.2 Connections ........................................................................ 9

2.1.3 Performance and Intelligence ........................................... 10

2.1.4 Specifications – Optional Components ............................ 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 Getting Started ........................................................................... 16

3.4 Motherboard Settings ................................................................. 16

3.5 System Memory (DDR DIMM)................................................. 21

3.5.1 Memory Installation ......................................................... 22

3.5.2 General DIMM Memo...................................................... 22

3.6 Central Processing Unit (CPU) .................................................. 23

3.7 Expansion Cards ........................................................................ 24

3.7.1 Expansion Card Installation Procedure ............................ 24

3.7.2 Assigning IRQs for Expansion Cards .............................. 25

3.7.3 Accelerated Graphics Port Pro (AGP Pro) ....................... 26

3.8 External Connectors ................................................................... 27

3.9 Starting Up the First Time.......................................................... 39

4. BIOS SETUP 41

4.1 Managing and Updating Your BIOS .......................................... 41

4.1.1 Upon First Use of the Computer System.......................... 41

4.1.2 Updating BIOS Procedures .............................................. 42

4.2 BIOS Setup Program.................................................................. 45

4.2.1 BIOS Menu Bar................................................................ 46

4.2.2 Legend Bar ....................................................................... 46

4.3 Main Menu ................................................................................. 48

4.3.1 Primary & Secondary Master/Slave ................................. 49

4

ASUS A7M266-D User’s Manual

CONTENTS

4.3.2 Keyboard Features............................................................ 52

4.4 Advanced Menu ......................................................................... 54

4.4.1 Chip Configuration........................................................... 57

4.4.2 I/O Device Configuration ................................................. 59

4.4.3 PCI Configuration ............................................................ 60

4.4.4 Shadow Configuration ...................................................... 64

4.5 Power Menu ............................................................................... 65

4.5.1 Power Up Control............................................................. 67

4.5.2 Hardware Monitor ............................................................ 69

4.6 Boot Menu ................................................................................. 70

4.7 Exit Menu................................................................................... 72

5. SOFTWARE SETUP 75

5.1 Install Operating System............................................................ 75

5.2 Start Windows............................................................................ 75

5.3 A7M266-D Series Support CD.................................................... 75

6. SOFTWARE REFERENCE 77

6.1 ASUS PC Probe ......................................................................... 77

6.2 CyberLink PowerPlayer SE ....................................................... 83

6.3 CyberLink V ideoLive Mail ........................................................ 83

6.4 ASUS Live Update..................................................................... 85

6.5 Multi-Channel Audio Feature Setup........................................... 86

6.6 3Deep Color Tuner..................................................................... 88

7. APPENDIX 91

7.1 Qualified Vendors List ............................................................... 91

7.2 Glossary ..................................................................................... 93

INDEX ................................................................................................... 97

ASUS A7M266-D 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 A7M266-D 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 Instructions on setting up the motherboard.

4. BIOS SETUP Instructions on setting up the BIOS

5. SOFTWARE 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,
contact your retailer.

Manual / Checklist

1. INTRODUCTION

Package Contents

(1) ASUS Motherboard
(1) 40-pin 80-conductor ribbon

cable for internal UltraDMA/
100 / UltraDMA/66 (also
compatible with UltraDMA/33
IDE drives/devices)

(1) Ribbon cable for internal

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) 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 iPanel

(1) ASUS PCI-USB2 Card

NOTE: Before setting up the system components, refer to Appendix 7.1 for a
Qualified Vendor’s list. All the components on the list have been tested and are
compatible with the A7M266-D motherboard.

ASUS A7M266-D User’s Manual 7

2. FEATURES

2.1 The ASUS A7M266-D

The ASUS A7M266-D motherboard is carefully designed for the value-conscious
PC user who needs an entry-level server with the most advanced features processed
by the fastest available processors.

2.1.1 Core Specifications

2. FEATURES

Specifications

• Dual AMD Athlon™ MP Duron™ MP Processor Support: Features the latest

• North Bridge System Chipset: AMD-762

• South Bridge System Chipset: AMD-768

• PC2100 / PC1600 DDR SDRAM Support: Equipped with four Double Data

AMDs, 1.6 GHz and higher.

™

chipset with AGP / primary 64 bit
PCI / Memory controller supports a 266MHz Front Side Bus (FSB), supports
DDR SDRAM DIMM, complies with AGP 2.0 specifications for 4X, 2X and
1X AGP modes and PCI 2.2. bus interface with support for two 66MHz PCI
masters. It is optimized to deliver enhanced performance with the new AMD

™

Athlon MP

using a 33MHz, 32-bit interface, PCI 2.2 compliant; PCI Super-I/O
Integrated Peripheral Controller (PSIPC) with support for UltraDMA/100, which
allows burst mode data transfer rates of up to 100MB/sec; USB 1.1 controller
with root hub and four function ports.

Rate Dual Inline Memory Module (DDR DIMM) sockets to support up to 3.5GB
of registered DDR SDRAM, or up to 2GB of unbuffered. DDR SDRAM sup­plies the highest bandwidth and offers the lowest latency currently available,
improving the memory system’s ability to service multimedia requirements.

.

™

PCI set with a secondary PCI bridge

• UltraDMA/100 Support: Comes with an onboard PCI Bus Master IDE con-

troller with two connectors that support four IDE devices on two channels. Sup­ports UltraDMA/100, 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, CD-R/RW, LS-120, and Tape Backup drives.

• Super Multi-I/O: The multi-I/O chipset offers complete support for a variety of

I/O functions. 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. The Super I/O
controller also supports a floppy disk drive, PS/2 keyboard, and PS/2 mouse.

• Smart BIOS: 2Mb firmware enables CPU/DDR SDRAM frequency

adjustments, boot block write protection, and HD/SCSI/MO/ZIP/CD/Floppy boot
selection.

8

ASUS A7M266-D User’s Manual

2. FEATURES

2.1.2 Connections

• Two CPU Sockets: Socket A (462) for dual AMD Athlon™ MP / Duron™ MP

processors.

• PCI Expansion Slots: Provides five Legacy Free PCI slots: three PCI-32bit/

33MHz and two PCI-64bit/66MHz, (PCI 2.2 compliant. With no ISA, bottle­necks and system memory management issues are eliminated. All PCI slots ca n
support Bus Master PCI cards, such as SCSI or LAN cards. (PCI supports up to
133MB/s maximum throughput.) The MB supports Concurrent PCI, which al­lows multiple PCI transfers from PCI master bus to the memory and processor .

• IDE Connectors: Dual-channel bus master IDE connectors support up to four

Ultra DMA/100/66, PIO Modes 3 & 4 IDE devices like two HDDs, one DVD
and an R/W CD.

• AGP Pro Slot: Comes with an Accelerated Graphics Port Pro slot that

supports AGP cards for high performance, component level interconnect
targeted at 3D graphical applications using a 4X mode bus.

Specifications

2. FEATURES

• Floppy Disk Connector: Supports the floppy disk drive.

• USB Ports: T wo Universal Serial Bus (USB) ports and one header for two more

ports are available for connecting USB devices: mouses, PDAs and scanners.

• Serial Ports: Two 9-pin COM1/COM2 ports are for all serial devices.

• IrDA: Supports an optional infrared port module for a wireless interface.

• Parallel Port: 25-pin port connects a parallel printer or other devices.

• PS/2 mouse Port: Green 6-pin connector is for a PS/2 mouse.

• PS/2 keyboard Port: Purple 6-pin connector is for a PS/2 keyboard.

• Microphone jack: Pink jack connects a microphone. In 6-channel mode, the

function of this jack enables Bass/Center audio output.

• Line In jack: Light blue jack connects a tape player or other audio sources. In

6-channel mode, this jack enables rear speaker audio output.

• Line Out jack: Lime jack connects a headphone or speakers. In 6-channel

mode, this jack enables front speaker audio output.

• Three power Connectors: Standard ATX power supply: +5V/3.3V-180W; the

power supply must put out at least 1 Amp on the +5V standby lead (+5VSB);
ATX 12V/15 Amp power; and one auxillary power connector.

ASUS A7M266-D User’s Manual 9

2.1.3 Performance and Intelligence

• DDR SDRAM Optimized Performance: This motherboard supports Double Data

• Onboard Audio: Audio models come with the six-channel C-Media CMI8738

2. FEATURES

Performance

• PCI USB2 Card: One 4-port USB PCI card is bundled with the A7M266-D.

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

2. FEATURES

Rate (DDR) Dynamic Random Access Memory (DDR SDRAM). This new
memory technology increases performance by executing two actions per clock
cycle, resulting in data transfer rates of up to 2.1 GB/s for 266MHz DDR SDRAM
and 1.6GB/s for 200MHz DDR SDRAM.

PCI audio controller that supplies HR TF 3D positional audio functions. A soft­ware package helps setup the multi-channel PC sound system.

Energy Saving Features for operating systems that support OS Direct Power
Management (OSPM) functionality. With these features employed in the OS,
PCs can be ready around the clock but comply with energy saving standards. To
fully utilize the ACPI benefits, use an ACPI-supported OS such as Windows 98.

• Onboard LED: A green LED lights up to indicate that power is available on-

board. It reminds users that standby power is available. The LED also serves as
a reminder to disconnect the power supply when making any change to the
configuration.

• 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 anywhere.

• SMBus: Features the System Management Bus interface used to physically

transport commands and information between SMBus devices.

• Desktop Management Interface (DMI): Supports DMI through BIOS that al-

lows hardware to communicate within a standard protocol and create a higher
level of compatibility. (Requires DMI-enabled components.)

®

• ASUS C.O.P. (CPU Overheating Protection): W ith AMD

processors installed, the motherboard offers users ASUS C.O.P. automatic CPU
Overheating Protection to prolong the life of the entire system. If the CPU
temperature becomes excessive, the PC shuts down automatically.

Athlon™ MP / XP

10

ASUS A7M266-D User’s Manual

2. FEATURES

• Auto Fan Off: The system fans powers 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. Note: the user must change
the default setting in BIOS to take advantage of this feature.

• Enhanced ACPI and Anti-Boot Virus Pr otection: Programmable BIOS (Flash

EEPROM) that offers enhanced ACPI for W indows 98/2000/ME compatibility,
built-in firmware-based virus protection, and autodetection of most devices for
a virtual automatic setup.

• 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.

• Easy Connectivity and System Information Access: Supports an optional

ASUS iPanel, an easy-to-access box with system diagnostic display area, sys­tem status LEDs, USB ports, and hot keys. The AFPANEL connector on the
motherboard accommodates the ASUS iPanel.

• PC Health Monitoring: Provides an easy way to test and manage system status

information, such as CPU and system voltages, temperatures, and fan status
through the onboard hardware ASUS ASIC and the bundled ASUS PC Probe.

• 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.

Intelligence

2. FEATURES

ASUS A7M266-D User’s Manual 11

2. FEATURES

2.2 Motherboard Components

See opposite page for locations.

Processor Support Dual Socket A (462) for AMD Athlon MP

Motherboard Parts

2. FEATURES

Main Memory Maximum 3.5GB Support

Expansion Slots 2 64/32bit 66/33MHz PCI Slots ............................................. 19

Location

™

/Duron MP

DSW switches .......................................................................... 8

Chipsets AMD 762 System Controller .................................................... 5

AMD 768 PCI Set .................................................................. 11

2Mbit Programmable Flash EEPROM ................................... 15

LPC Multi-IO Controller Chipset........................................... 16

4 DIMM Sockets ...................................................................... 6

PC2100 / PC1600 DDR memory support

3 32bit 33MHz PCI Slots ....................................................... 13

1 Accelerated Graphics Port (AGP) Pro Slot ......................... 20

System I/O 1 Floppy Disk Drive Connector ............................................... 7

2 IDE Connectors (UltraDMA/100 Support) ......................... 10

1 Front Audio Panel Connector .............................................. 14

1 Parallel Port Connector ............................................. (Top) 25

1 Serial COM1 Port Connector .............................. (Bottom) 26

1 Serial COM2 Port Connector .............................. (Bottom) 24

USB Connectors (Port 0 & Port 1) ........................................ 27

USB Headers (Port 2 & Port 3) ............................................. 12

1 PS/2 Mouse Connector .............................................. (Top) 28

1 PS/2 Keyboard Connector ................................... (Bottom) 28

™

..............

4

Audio PCI 6-Channel Audio Controller (optional) ........................... 18

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

1 Line In Connector (audio model only) ........... (Light blue) 22

1 Microphone Connector (audio model only) ............(Pink) 21

Network Features

Hardware Monitoring ASUS ASIC .............................................................................. 9

Power Auxillary Power Connector ...................................................... 1

12V ATX Power Supply Connector ......................................... 2

ATX Power Supply Connector ................................................. 3

Special Feature Onboard LED ......................................................................... 17

Form Factor ATX

12

ASUS A7M266-D User’s Manual

2. FEATURES

2.2.1 Component Locations

28
27

26

25

24
23

22
21

1

2

3 4

5

6

2. FEATURES

Motherboard Parts

20
19

18
17

16
15

14

87

10111213

9

ASUS A7M266-D User’s Manual 13

3. HARDWARE SETUP

3.1 Motherboard Layout

24.5cm (9.6in)

PS/2

T: Mouse
B: Keyboard

USB

T: USB1
B: USB2

COM1

PARALLEL PORT

COM2

Motherboard Layout

3. H/W SETUP

Line

Oit

Line

In

Mic

In

AUX

HPHONE

MIC2

LINE_IN

CD

BCS1

MODEM

C-Media

CMI-8738

Multi

I/O

2Mbit

Firmware

AAPANEL

CHA_FAN

AUX Power

Connector

ATX12V

CPU1_FAN

Socket 462

BCS2

PCI Audio

Hub

ATX Power Connector

CPU1

Controller

Accelerated Graphic Port (AGP PRO)

PCI Slot 1

PCI Slot 2

A7M266-D

LED1

PCI Slot 3

PCI Slot 4

PCI Slot 5

P0_VID4
P0_VID3
P0_VID2
P0_VID1

CPU0

AMD762

System

AMD-768

Chipset

USBPORT

CPU0_FAN

2.5V

Socket 462

®

DDR DIMM1 (64/72 bit, 184-pin module)

0 1

2 3

DSW

PWR_FAN

SECONDARY IDE

PRIMARY IDE

FLOPPY

SMB

ASUS

ASIC

with Hardware

Monitor

AFPANEL

DDR DIMM2 (64/72 bit, 184-pin module)

DDR DIMM3 (64/72 bit, 184-pin module)

DDR DIMM4 (64/72 bit, 184-pin module)

4 5

6 7

30.5cm (12in)

CR2032 3V

Lithium Cell

CMOS Power

CLRTC

JEN

IR_CON

CHASSIS

IDELED

PANEL

Grayed components are available only on certain models at the time of purchase.

14

ASUS A7M266-D User’s Manual

3. HARDWARE SETUP

3.2 Layout Contents

Motherboard Settings

1) JEN p. 17 JumperFree Mode (JumperFree / Jumper Mode)

2) VDDR p. 18 DDR Memory Voltage Setting (2.5 / 2.6 / 2.7)

3) BCS1/2 p. 18 Bass Center Setting (CENTER/BASS, BASS/CENTER)

4) DSW 1–4 p. 19 CPU External Frequency Setting (Switches 1–4)

6) PO_VID1-4 p. 20 CPUO Voltage Regulator Output Setting

Expansion Slots/Sockets

1) DDR System Memory p. 21 System Memory Support

2) DIMM1/2/3/4 p. 22 DDR DIMM Memory Installation

3) Socket 462 (Socket A) p. 23 CPU Support

4) PCI1/2/3/4/5 p. 24 Two 64-bit and three 32-bit PCI Bus Expansion Slots

5) AGP PRO p. 26 Accelerated Graphics Port (AGP) Pro

Connectors

1) PS2KBMS p. 27 PS/2 Mouse Porv Connector (6 pin female)

2) PS2KBMS p. 27 PS/2 Keyboard Port Connector (6 pin female)

3) USB p. 28 Universal Serial Bus Connectors 0 & 1 (Two 4 pin female)

4) COM1/COM2 p. 28 Serial Port Connector (9 pin male)

5) PRINTER p. 28 Parallel Port Connector (25 pin female)

6) Line_In, Line_Out, Mic p. 29 Audio Port Connectors (Three 1/8”) (optional)

7) FLOPPY p. 29 Floppy Disk Drive Connector (34 pins)

8) PRIM. / SECOND. IDE p. 30 IDE Connectors (Two 40-1 pins)

9) CHASSIS p. 31 Chassis Intrusion Lead (4-1 pins)

10) IR_CON p. 31 Infrared Module Connector (5 pins)
CHA, PWR, CPU0, CPU1_FAN

11)

12) USBPORT p . 33 USB Header (10-1 pins)

13) SMB p. 33 SMBus Connector (5-1 pins)

14) AFPANEL p. 34 ASUS iPanel Connector (24-1 pins)

15) MIC2 p. 34 Internal Microphone Connector (3-pin)

16) HPHONE p. 35 Headphone True-level Line Out Header (3-pin)

17) LINE_IN p. 35 Audio Input Line In Header (5-pin) (optional)

18) AAPANEL p. 35 ASUS iPanel Audio Connector (10-1 pin) (optional)

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

20) A TXPWR p. 37 A TX Power Supply Connectors (20 pin block ATXPWR,

PWR.LED (

21)
KEYLOCK (

22)

23) SPEAKER (PANEL) p. 38 System Warning Speaker Connector (4 pins)

24) MSGLED (PANEL) p. 38 System Message LED (2 pins)

25) SMISW (PANEL) p. 38 System Management Interrupt Lead (2 pins)

26) PWRSW (PANEL) p. 38 ATX / Soft-Off Switch Lead (2 pins)

27) RESET (PANEL) p. 38 Reset Switch Lead (2 pins)

PANEL

PANEL

)

p. 32 Chassis, Power Supply, CPU0 & 1 Fan Connectors (3 pins)

12 pin EAUXPWER, 4 pin ATX12V)

p. 38 System Power LED Lead (3 pins)

)

p. 38 Keylock Lock Switch Lead (2-pin)

Layout Contents

3. H/W SETUP

ASUS A7M266-D User’s Manual 15

3.3 Getting Started

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

1. Check Motherboard Settings

2. Install Memory Modules

3. Install the Central Processing Unit (CPU)

4. Install Expansion Cards

5. Connect Ribbon Cables, Panel Wires, and Power Supply

6. Setup the BIOS Software

3.4 Motherboard Settings

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

W ARNING! Computer motherboards and expansion cards contain very delicate

3. H/W SETUP

Layout Contents

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

3. HARDWARE SETUP

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 re-

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

®

16

A7M266-D

A7M266-D Onboard LED

ASUS A7M266-D User’s Manual

ON

Standby

Power

OFF

Powered

Off

3. HARDWARE SETUP

Motherboard Features Settings (DIP Switches - DSW)

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.

®

DSW

1. Frequency Selection

34

2. Frequency Selection

3. Frequency Selection

OFF

12

4. Frequency Selection

A7M266-D

ON

ON

A7M266-D DIP Switch

1) JumperFree™ Mode (JEN)

This jumper allows you to enable or disable the JumperFree™ mode. The
JumperFree™ mode allows processor settings to be made through the BIOS
setup (see 4.4 Advanced Menu). NOTE: In JumperFree™ mode, all VID1-4
must be set to [3-4].

Setting JEN

JumperFree [2-3]
Jumper Mode [1-2] (default)

3. H/W SETUP

Motherboard Settings

®

A7M266-D

A7M266-D Jumper Mode Setting

ASUS A7M266-D User’s Manual 17

12

(Default)

JEN

2

3

Jumper FreeJumper Mode

2) DDR Voltage Setting (VDDR)

This jumper controls the voltage output to the DDR memory DRAMS. Less
strain is placed on components at lower voltage settings.

Setting VDDR

2.5V [1-2]

2.6V [2-3] (default)

2.7V [3-4]

Motherboard Settings

3. H/W SETUP

A7M266-D

3. HARDWARE SETUP

2.5V

®

4
3

2.7V

2
1

2.5V

3
2

2.6V

(Default)

A7M266-D 2.5V Setting

3) Bass Center Setting (CENTER/BASS, BASS/CENTER)

Use these jumpers in conjunction with the C-Media PCI Audio Driver and to
adjust output for 6 speaker audio. No audio standard exists for the three pick-up
surfaces on male audio jacks, therefore it may be necessary to switch jumpers
from the default position, [2-3] to [1-2] in order to reroute signals among the
internal leads in the Line-In, Line-Out, Mic female sockets. Make sure a test is
made using the C-Media Audio Driver software setup available on the Support
CD.

®

3
2
1

2

18

A7M266-D

A7M266-D Bass Center Setting

ASUS A7M266-D User’s Manual

BCS1

BCS2

(CENTER/BASS)(BASS/CENTER)

BCS1

(default)

BCS2

3. HARDWARE SETUP

4) CPU External Frequency Setting (DSW Switches 1–4)

This option tells the clock generator what frequency to send to the CPU, SDRAM,
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:

1. To use this feature, check the JEN and PO_VID jumper settings: (see

JumperFree™ Mode (JEN) on the previous pages.

DSW

34

®

CPU 100MHz 103MHz

A7M266-D

CPU

12

ON

34

12

ON

110MHz 115MHz

A7M266-D CPU External Frequency Selection

Frequency Table
(MHz) DSW
CPU 1 2 3 4
100 [ON] [OFF] [ON] [ON]

103 [OFF] [ON] [OFF] [ON]
105 [ON] [OFF] [OFF] [ON]
110 [OFF] [OFF] [OFF] [ON]
115 [OFF] [OFF] [ON] [ON]
133 [ON] [ON] [ON] [OFF]

ON

ON

34

12

34

12

ON

105MHz

ON

133MHz
(Default)

34

12

34

12

3. H/W SETUP

Motherboard Settings

WARNING! Frequencies other than the recommended CPU bus frequencies are

not guaranteed to be stable. Overclocking your processor is not recommended. It
may result in a slower speed and premature wearing of the processor.

ASUS A7M266-D User’s Manual 19

3. HARDWARE SETUP

5) Voltage Regulator Output Setting (PO_VID1 - 4)

This jumpers allow you to manually adjust the CPUO core voltage. It is
recommended to use CPU Default (all jumpers [3-4]) as the setting for CPU
core voltage. CPU Default means that the Vcore is generated according to the
CPU-VID design configuration. For each jumper setting, there are two voltage
options, depending on which CPU is used.

NOTE! The PO_VID jumpers simultaneously adjust voltages for both CPU0

and CPU1.

Motherboard Settings

3. H/W SETUP

A7M266-D

A7M266-D CPU0 Core Voltage
Selection

PO_VID4
PO_VID3
PO_VID2
PO_VID1

1.85/1.825Volts
PO_VID4
PO_VID3
PO_VID2
PO_VID1

PO_VID4
PO_VID3
PO_VID2
PO_VID1

1.55/1.525Volts 1.50/1.475Volts
PO_VID4
PO_VID3
PO_VID2
PO_VID1

®

PO_VID4
PO_VID3
PO_VID2
PO_VID1

PO_VID4
PO_VID3
PO_VID2
PO_VID1

1.40/1.375Volts

1.25/1.225Volts

1.10/1.075Volts

3214 3214 3214

1.8/1.775Volts 1.75/1.725Volts

1.7/1.675Volts

1.65/1.625Volts

1.35/1.325Volts

1.20/1.175Volts

CPU Default/
JumperMode

(Default)

1.6/1.575Volts

1.45/1.425Volts

1.30/1.275Volts

1.15/1.125Volts

20

ASUS A7M266-D User’s Manual

3. HARDWARE SETUP

3.5 System Memory (DDR DIMM)

This motherboard uses only Double Data Rate (DDR) Synchronous Dynamic
Random Access Memory (SDRAM) Dual Inline Memory Modules (DIMMs).

DIMMs come in combinations of single or double-sided types ranging through 64MB,
128MB, 256MB, 512MB and 1GB to form a total memory size of 64MB to 3.5GB.

Each DIMM socket/module is two-sided: each side defines one “row” of memory.
DDR DIMMs support ECC and non-ECC modules; both types are available in

registered (for servers) and unbuffered (for PCs) versions:

~ Four (4) sockets are available for both 266MHz-PC2100 or 200MHz-PC1600

registered DDR DIMMs to form a memory size of 64MB t o 3.5GB .

~ Two (2) sockets are available for 266MHz-PC2100 unbuffered DDR DIMMs:

to form a memory size of 64MB to 2GB.

NOTE: The DDR memory bus runs at the same frequency as the CPU front side bus.

DIMM Location 184-pin DIMM Total Memory

Socket 1 (Rows 0&1) 64MB, 128MB, 256MB, 512MB, 1GB x1
Socket 2 (Rows 2&3) 64MB, 128MB, 256MB, 512MB, 1GB x1
Socket 3 (Rows 4&5) 64MB, 128MB, 256MB, 512MB, 1GB x1
Socket 4 (Rows 6&7) 64MB, 128MB, 256MB, 512MB, 1GB x1

Total System Memory (Max 3.5 GB) =

®

104 Pins

System Memory

3. H/W SETUP

A7M266-D

A7M266-D 184-Pin DDR DIMM Sockets

ASUS A7M266-D User’s Manual 21

80 Pins

3.5.1 Memory Installation

WARNING! Make sure that you unplug your power supply when adding or

removing memory modules or other system components. Failure to do so may
cause severe damage to both your motherboard and expansion cards

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. A 184-pin DDR
SDRAM DIMM has a single notch slightly to the right of center . This motherboard
supports three pairs of differential clock signals per DIMM.

Installing a DIMM:

1. Unlock a DIMM socket by pressing the retaining clips outward.

2. Align a DIMM on the socket such that the notches on the DIMM exactly
match the notches in the socket.

3. H/W SETUP

System Memory

3. Firmly insert the DIMM into the socket until the retaining clips snap back in
place.

4. Populate the DIMM sockets in the following order: DIMM 1, 2, 3 then 4 to
ensure system stability.

3. HARDWARE SETUP

Unlocked Retaining Clip Locked Retaining Clip

3.5.2 General DIMM Memo

• DIMMs that have more than 18 chips are not supported on this motherboard.

• For the system CPU bus to operate at 200MHz/266MHz, use only PC1600-/

PC2100-compliant DIMMs.

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

• Single-sided DDR DIMMs come in 64, 128, 256 and 512MB; double-sided come in
128, 256, 512MB and 1GB.

• Please refer to Appendix 7.1 for a list of Qualified Vendors for DIMMs that have
been tested for use with the A7M266-D motherboard.

WARNING! Be sure that the DIMMs you use can handle the specified DD R

SDRAM MHz or else bootup will not be possible.

22

ASUS A7M266-D User’s Manual

3. HARDWARE SETUP

3.6 Central Processing Unit (CPU)

The motherboard supports two A-type sockets (462 for dual CPU installation. Only

®

AMD
same FSB speed, but the rated speed for each CPU need not be the same. For single
processor operation, use any type of AMD
Attach a fan and heatsink onto the CPU to prevent overheating.

Athlon™ MP processors may be installed; each CPU should be rated for the

®

Athlon™/Duron™ processor.

CPU NOTCH
TO INNER

®

CORNER

LOCK

LEVER

A7M266-D

AMD™ CPU

A7M266-D Socket A

1. Locate the CPU socket. Open it by pulling the
lever gently sideways away from the socket.
Then lift the lever upwards. The socket lever
must be fully opened (90 to 100 degrees).

2. Insert the CPU with the correct orientation:
the notched corner of the CPU must be
oriented toward the inner corner of the socket
base nearest to the lever hinge.

CAUTION! The CPU fits in one orientation

and should drop easily into place. Do not force
the CPU into the socket to avoid bending the

pins. If the CPU does not fit, check its
alignment and look for bent pins.

CPU NOTCH

CPU

3. H/W SETUP

3. Once completely inserted, press the CPU
firmly and close the socket lever until it snaps into its locked position.

4. Place a CPU fan and heatsink over the CPU. The heatsink should entirely cover
the CPU. Carefully attach the heatsink locking brace to the plastic clips on the
socket base. No extra force is required to keep the CPU in place.

CAUTION! Take care not to scrape the motherboard surface when mounting a

clamp-style processor fan, or damage may occur. When mounting a heatsink
onto your CPU, ensure that exposed CPU capacitors do not touch the heatsink, or
else damage may occur! Refer to heatsink/CPU documentation.

NOTE! To avoid start-up problems, adjust the correct Bus Frequency and

Multiples. (See: 3.4 Motherboard Settings and, 4.4.Advanced BIOS.)

ASUS A7M266-D User’s Manual 23

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.

Expansion Cards

3. H/W SETUP

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. HARDWARE SETUP

24 ASUS A7M266-D User’s Manual

3. HARDWARE SETUP

3.7.2 Assigning IRQs for Expansion Cards

Some expansion cards need an IRQ to operate. Generally, an IRQ must be exclu­sively assigned to one use. In a standard design, there are 16 IRQs available but
most of them are already in use, leaving 6 IRQs free for expansion cards. If your
motherboard has PCI audio onboard, an additional IRQ will be used. If your moth­erboard also has MIDI enabled, another IRQ will be used, leaving 4 IRQs free.

IMPORTANT: If using PCI cards on shared slots, make sure that the drivers sup­port “Share IRQ” or that the cards do not need IRQ assignments. Conflicts will
arise between the two PCI groups that will make the system unstable or cards inop­erable.

The following table lists the default IRQ assignments for standard PC devices. Use
this table when configuring your system and for resolving IRQ conflicts.

Standard Interrupt Assignments

IRQ 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 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 used
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

3. H/W SETUP

Expansion Cards

*These IRQs are usually available for PCI devices.

Interrupt Request Table for this Motherboard

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

PCI slot 3 — shared ——
PCI slot 4 ——used —
PCI slot 5 ———shared
AGP Pro slot shared shared ——
Onboard PCI audio — shared ——
Onboard USB Controller ———shared

ASUS A7M266-D User’s Manual 25

3. HARDWARE SETUP

3.7.3 Accelerated Graphics Port Pro (AGP Pro)

This motherboard provides an Accelerated Graphics Port Pro (AGP Pro) slot to sup­port AGP/AGP Pro graphics cards, such as an ASUS AGP-V6800DDR/64M.

CAUTION! T o avoid damaging your AGP/AGP Pro graphics card, your computer’s

power supply should be unplugged before inserting your graphics card into the slot.

AGP Card without Retention Notch

®

Expansion Cards

3. H/W SETUP

A7M266-D Accelerated Graphics Port (AGP PRO)

CAUTION! The AGP Pro slot is shipped with a safety tab on

the 20-pin bay for use with AGP cards without a retention notch.
DO NOT remove this tab if you will be using such cards. Re­move the tab ONLY when you will be using an AGP Pro card.
Use a rigid tip, such as a pen tip, to dislodge and remove the tab from the bay.

3.7.4 ASUS™ PCI-USB2 Card

The A7M266-D motherboard is supplied with the USB 1.1 and 2.0 compliant PCI­USB2 card and driver software. To install the PCI-USB2 card, power off the
computer, plug in the PCI card and restart the system. Enter the Windows Control
Panel menu and use the Install New Har dwar e and Software wizards to install hard-

ware and drivers.

NOTE! With multi-processor systems,

do not use more than 2 USB 2.0 devices
if operating with the W indows 2000 OS.

A7M266-D

20-pin bay

Rib (inside slot) Rib

TOP VIEW

28-pin bay

The PCI-USB2 card offers
four USB ports for multiple device
connectivity.

26 ASUS A7M266-D User’s Manual

3. HARDWARE SETUP

3.8 External Connectors

WARNING! Some pins are used for connectors or power sources. These are

clearly distinguished from jumpers in the Motherboard Layout. Placing jumper
caps over these connector pins will cause damage to your motherboard.

IMPORTANT: Ribbon cables should always be connected with the red stripe to

Pin 1 on the connectors. Pin 1 is usually on the side closest to the power connec­tor on hard drives and CD-ROM drives, but may be on the opposite side on
floppy disk drives. Check the connectors before installation because there may
be exceptions. IDE ribbon cable must be less than 46 cm (18 in.), with the sec­ond drive connector no more than 15 cm (6 in.) from the first connector.

1) PS/2 Mouse Connector (Green 6-pin PS2KBMS)

The system will direct IRQ12 to the PS/2 mouse if one is detected. If one is not
detected, expansion cards can use IRQ12. See PS/2 Mouse Function Control
in 4.4 Advanced Menu.

PS/2 Mouse (6-pin Female)

Connectors

3. H/W SETUP

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

PS/2 Keyboard (6-pin Female)

ASUS A7M266-D User’s Manual 27

3) Universal Serial Bus Ports 0 & 1 (Black two 4-pin USB)

4) Serial Port Connectors (Teal/Turquoise 9-pin COM1 / COM2)

3. H/W SETUP

Connectors

3. HARDWARE SETUP

Two USB ports are available for connecting USB devices. An optional USB
header is available if you need more USB ports.

USB 1

Universal Serial Bus (USB) 2

Two serial ports can be used for pointing devices or other serial devices. For
setting up these ports, see Onboard Serial Port 1 in 4.4.2 I/O Device Configu-
ration for settings.

COM1 COM2

Serial Ports (9-pin Male)

5) Parallel Port Connector (Burgundy 25-pin PRINTER)
You can enable the parallel port and choose the IRQ through Onboard Parallel
Port (see 4.4.2 I/O Device Configuration).
NOTE: Serial printers must be connected to the serial port.

Parallel Port (25-pin Female)

28 ASUS A7M266-D User’s Manual

3. HARDWARE SETUP

6) Audio Port Connectors (Three 1/8” GAME_AUDIO) (optional)
Line Out (lime) can be connected to headphones or preferably powered speak-

ers. Line In (light blue) allows tape players or other audio sources to be re-
corded by your computer or played through the Line Out (lime). Mic (pink)
allows microphones to be connected for inputting voice.
NOTE: (Only on model with onboard PCI audio) To set up a four speaker
system, connect rear side speakers to the Line In connector and enable the C­Media 4-speaker function (see 6.4.2 Enabling 4-Speaker Function).

MicLine InLine Out

1/8" Stereo Audio Connectors

7) Floppy Disk Drive Connector (34-1 pin FLOPPY)

This connector supports the provided floppy drive ribbon cable. After connect­ing the single end to the board, connect the two plugs on the other end to the
floppy drives. (Pin 5 is removed to prevent inserting in the wrong orienta-

tion when using ribbon cables with pin 5 plugged).

®

NOTE: Orient the red markings on
the floppy ribbon cable to

A7M266-D

A7M266-D Floppy Disk Drive Connector

PIN 1

PIN 1

Connectors

3. H/W SETUP

ASUS A7M266-D User’s Manual 29

3. HARDWARE SETUP

8) Primary (Blue) / Secondary IDE Connectors (Two 40-1pin IDE)

These connectors support the provided UltraDMA/100 IDE hard disk ribbon
cable. Connect the cable’s blue connector to the motherboard’s primary (recom-
mended) or secondary IDE connector, and then connect the gray connector to
your UltraDMA/100 slave device (hard disk drive) and the black connector to
your UltraDMA/100 master device. It is recommended that non-UltraDMA/100
devices be connected to the secondary IDE connector. If you install two hard
disks, you must configure the second drive to Slave mode by setting its jumper
accordingly . Please refer to your hard disk documentation for the jumper settings.
BIOS now supports specific device bootup (see 4.6 Boot Menu). (Pin 20 is

removed to prevent inserting in the wrong orientation when using ribbon
cables with pin 20 plugged).

TIP: You may configure two hard disks to be both Masters with two ribbon

cables – one for the primary IDE connector and another for the secondary IDE
connector . You may install one operating system on an IDE drive and another on
a SCSI drive and select the boot disk through the BIOS.

3. H/W SETUP

Connectors

IMPORTANT: UltraDMA100/66 IDE devices must use a 40-pin 80-conductor

IDE cable for 100MB/s transfer rates.

®

A7M266-D

A7M266-D IDE Connectors

NOTE: Orient the red markings

(usually zigzag) on the IDE
ribbon cable to PIN 1.

Secondary IDE Connector

PIN 1

Primary IDE Connector

30 ASUS A7M266-D User’s Manual