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

3. HARDWARE SETUP

9) Chassis Intrusion Lead (4-1 pin CHASSIS)

This requires an external detection mechanism such as a chassis intrusion moni­tor/sensor or microswitch. The sensor is triggered when a high level signal is
sent to the Chassis Signal lead, which occurs when a panel switch or light detec­tor is triggered. This function works with an optional ASUS CIDB chassis intru-

sion module (see your vendor for more details). If the chassis intrusion lead is
not used, a jumper cap must be placed over the pins to close the circuit.

®

Ground

Chassis Signal

+5Volt

A7M266-D

(Power Supply Stand By)

1

CHASSIS

A7M266-D Chassis Open Alarm Lead

10) Standard Infrared Module Connector (5-1 pin IR)

This connector supports an optional wireless transmitting and receiving infrared
module. This module mounts to a small opening on system cases that support
this feature. You must also configure the setting through UART2 Use Infrared
(see 4.4.2 I/O Device Configuration) to select whether UART2 is directed for
use with COM2 or IrDA. Use the five pins as shown in Back View and connect
a ribbon cable from the module to the motherboard’s SIR connector according
to the pin definitions.

Standard Infrared (SIR)

Front View Back View

IRTX
GND

IRRX

+5V
(NC)

A7M266-D

®

+5V

(NC)

(NC)

GND

IRRX

GND

IRTX

CIRRX

CIR+5V

SIR
CIR

Connectors

3. H/W SETUP

A7M266-D Infrared Module Connector

ASUS A7M266-D User’s Manual 31

11) Chassis, Power Supply, CPU, and Chipset Fan Connectors

WARNING! The CPU and/or motherboard will overheat if there is no airflow

across the CPU and onboard heatsinks. Damage may occur to the motherboard

3. H/W SETUP

Connectors

and/or the CPU fan if these pins are incorrectly used. These are not jumpers,
do not place jumper caps over these pins.

3. HARDWARE SETUP

(3-pin CHA_FAN, PWR_FAN, CPU0_FAN, CPU1_FAN)

These connectors support cooling fans of 350mA (4.2 Watts) or less. Orientate
the fans so that the heat sink fins allow airflow to go across the onboard heat
sink(s) instead of the expansion slots. Depending on the fan manufacturer, the
wiring and plug may be different. The red wire should be positive, while the
black should be ground. Connect the fan’s plug to the board taking into consid-
eration the polarity of the connector.

NOTE: The “Rotation” signal is to be used only by a specially designed fan with
rotation signal. The Rotations per Minute (RPM) can be monitored using ASUS PC
Probe (see 6. SOFTWARE REFERENCE).

CPU0_FAN

®

A7M266-D

A7M266-D 12-Volt Cooling Fan Power

CHA_FAN

CPU1_FAN

PWR_FAN

GND
+12V
Rotation

Rotation

+12V

GND

GND
+12V
Rotation

GND

+12V

NC

32 ASUS A7M266-D User’s Manual

3. HARDWARE SETUP

12) USB Headers (10-1 pin USBPORT)

If the USB port connectors on the back panel are inadequate, two USB headers
are available for two additional USB port connectors. Connect the USB headers
to an optional 2-port USB connector set and mount the bracket to an open slot
on your chassis.

USBPORT

®

USB Power

USBP2–

USBP2+

GND

15

NC

A7M266-D

610

GND

USBP3–

USBP3+

USB Power

A7M266-D USB Port

Recommended Setup: Use USBPORT with the bundled 2-port connector set.

13) SMBus Connector (5-1 pin SMB)

This connector allows you to connect SMBus (System Management Bus) de­vices. SMBus devices communicate by means of the SMBus with an SMBus

2

host and/or other SMBus devices. SMBus is a specific implementation of an I

C
bus, which is a multi-device bus; that is, multiple chips can be connected to the
same bus and each one can act as a master by initiating data transfer.

®

SMB

Connectors

3. H/W SETUP

A7M266-D

A7M266-D SMBus Connector

ASUS A7M266-D User’s Manual 33

1

SMBCLK

FLOATING

+5V

Ground

SMBDATA

3. HARDWARE SETUP

14) ASUS iPanel Connector (24-1 pin AFPANEL)

This connector allows you to connect an optional ASUS iPanel, an easy to ac­cess drive bay with front I/O ports, status LEDs, and space reserved for a hard
disk drive. If you are not using an ASUS iPanel, you can connect an optional
wireless transmitting and receiving infrared module to the SIR connector or an
optional consumer infrared connector set to the CIR and SIR connectors for

both wireless transmitting and remote control functions through one external
infrared module.

AFPANEL

3. H/W SETUP

Connectors

15) Internal Microphone Connector (3-pin MIC2) (optional)

A7M266-D

+5 V

NC

GND

®

+5 V

SIR
CIR

NC

GND

IR_CON

IRRX

NC

IRRX

NC

GND

IRTX

CIRRX

+5VSB

GND

IRTX

CIRRX

+5VSB

SMBDATA

+3VSB

+5V SMBCLK

EXTSMI#

CHASSIS#

LOCKKEYNCNC

NC

BATT

MLED-

PCIRST#

A7M266-D Front Panel Connector

This connector supports the chassis-mounted microphone to the motherboard
instead of connecting an external microphone to the ATX connector.

NOTE: The internal microphone does not work if there is an external mi­crophone connected to the external Mic (pink) jack. You may only use one
microphone at a time.

®

MIC Power

MIC Input

Ground

A7M266-D

13

MIC2

A7M266-D Internal Microphone Connector

34 ASUS A7M266-D User’s Manual

3. HARDWARE SETUP

16) Headphone True-level Line Out Header (3-pin HPHONE) (optional)

This connector supports the chassis-mounted headphone instead of connecting
an external headphone to the rear panel connector.

NOTE: The internal microphone does not work if there is an external mi­crophone connected to the external Mic (pink) jack. You may only use one
microphone at a time.

®

HP OUT LT

GND

HP OUT RT

1

A7M266-D

HPHONE

A7M266-D True-Level Line Out Header

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

This connector suports audio input on left and right stereo audio channels.
NOTE: The motherboard ships with Jumper caps over pins 1-2 and 4-5.
Remove them only when making audio input connections.

®

A7M266-D

1

LINE_IN

LineIN_L
Backpanel_LineIn_L
AGND_A
Backpanel_LineIn_R
LineIN_R

Connectors

3. H/W SETUP

A7M266-D LINE_IN Connector

ASUS A7M266-D User’s Manual 35

3. HARDWARE SETUP

18) Front Panel Audio Connector (10-1 pin IAPANEL)

Attach the Front Panel audio cable to the IAP ANEL connector for audio control.
NOTE: The motherboard ships with Jumper caps over pins 1-2 and 5-6.
Remove them only when making connections to a Front Panel.

IAPANEL

®

3. H/W SETUP

Connectors

19) IDE Activity LED (2-pin IDELED)

MIC2

LineOut_R

MICPWR

NC

10

9

(Key)

+5VA

AGND_A

Backpanel_LineOut_R

A7M266-D

A7M266-D Intel Panel Connector

LineOut_L

2

1

Backpanel_LineOut_L

This connector supplies power to the cabinet’s IDE activity LED. Read and
write activity by devices connected to the Primary/Secondary IDE connectors
will cause the LED to light up.

®

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

A7M266-D

IDELED

A7M266-D IDE Activity LED

36 ASUS A7M266-D User’s Manual

3. HARDWARE SETUP

20) A TX Power Supply Connector (20-pin block A TXPWR, 6-pin EAUXPWER,
4-pin A TX12V)

These connectors supply power from ATX and auxillary power supplies. Each
type of connector socket requires a special plug from its type of power supply.
Care must be exercised to sellect the appropriate connector for each power source.
See the specifications for each power source below. When plugging the
connectors, push down firmly to make sure that the pins are aligned.

Important Specifications: The minimum requirement for full-power loading is

a 400 Watt ATX 12V power supply; minimum requirement for +5v/3.3.V is 180
Watts; +12 Volts requires 15 Amps; 5VSB requires 1 Amp. Also ensure that the
A TX power supply can put out at least 10mA on the +5-volt standby lead (+5VSB).
You may experience difficulty powering ON the system if the power supply
cannot support the load. For Wake-On-LAN support, your ATX power supply
must supply at least 720mA +5VSB.

+12.0Volts

+5V Standby

Power Good

EAUXPWR

Pin 1

®

+5V
+3V

COM

Ground

+5.0 Volts

Ground

+5.0 Volts

Ground
+3.3 Volts
+3.3 Volts

ATX12V

+12V DCCOM

A7M266-D

+12V DCCOM

A7M266-D ATX & Auxiliary Power Connectors

ATXPWR

+5.0 Volts
+5.0 Volts

-5.0 Volts
Ground
Ground
Ground
Power Supply On
Ground

-12.0Volts
+3.3Volts

Connectors

3. H/W SETUP

ASUS A7M266-D User’s Manual 37

The following PANEL illustration is used for items 21–27:

Speaker

Connector

SPKR

Ground

Ground

+5V

Ground

Ground

Ground

ResetCon

Reset SW

Ground

PWR_SW

ATX Power Switch*

A7M266-D

Keyboard Lock

Power LED

®

Message LED

SMI Lead

*

Requires an ATX power supply.

+5 V

+5 V

Keylock

PLED

MLED

ExtSMI#

A7M266-D System Panel Connectors

21) System Power LED Lead (3-1 pin PWRLED)

This 3-1 pin connector connects to the system power LED, which lights when
the system is powered on and blinks when it is in sleep or soft-off mode.

22) Keyboard Lock Switch Lead (2-pin KEYLOCK)

This 2-pin connector supports a case-mounted key switch for keyboard locking.

23) System Warning Speaker Connector (4-pin SPEAKER)

This 4-pin connector connects to the case-mounted speaker.

24) System Message LED Lead (2-pin MSGLED)

This indicates whether a message has been received from a fax/modem. The
LED will remain lit when there is no signal and blink when there is data re­ceived. This function requires an ACPI OS and driver support.

25) System Management Interrupt Lead (2-pin SMISW)

This allows the user to manually place the system into a suspend mode or “Green”
mode where system activity will be instantly decreased to save electricity and
expand the life of certain components when the system is not in use. This 2-pin
connector (see the preceding figure) connects to the case-mounted suspend switch.

26) ATX Power Switch / Soft-Off Switch Lead (2-pin PWRSW)

The system power is controlled by a momentary switch connected to this lead.
Pushing the button once will switch the system between ON and SLEEP or ON
and SOFT OFF, depending on your BIOS or OS setting. Pushing the switch
while in the ON mode for more than 4 seconds will turn the system off. The
system power LED shows the status of the system’s power.

27) Reset Switch Lead (2-pin RESET)

This 2-pin connector connects to the case-mounted reset switch for rebooting
your computer without having to turn off your power switch. This is a preferred
method of rebooting to prolong the life of the system’s power supply.

3. HARDWARE SETUP

3.9 Starting Up the First T ime

1. After all connections are made, close the system case cover.

2. Be sure that all switches are off (in some systems, marked with

3. Connect the power supply cord into the power supply located on the
back of your system case according to your system user’s manual.

4. Connect the power cord into a power outlet that is equipped with a surge
protector .

5. You may then turn on your devices in the following order:
a. Your monitor
b. External SCSI devices (starting with the last device on the chain)
c. Your system power. For ATX power supplies, you need to switch on

the power supply as well as press the ATX power switch on the front
of the case.

6. The power LED on the front panel of the system case will light. For
ATX power supplies, the system LED will light when the ATX power
switch is pressed. The LED on the monitor may light up or switch be­tween orange and green after the system’s if it complies with “green”
standards or if it has a power standby feature. The system will then run
power-on tests. While the tests are running, the BIOS will alarm beeps
or additional messages will appear on the screen. If you do not see any­thing within 30 seconds from the time you turn on the power, the system
may have failed a power-on test. Recheck your jumper settings and con­nections or call your retailer for assistance.

).

Powering Up

3. H/W SETUP

Award BIOS Beep Codes

Beep Meaning

One short beep when No error during POST
displaying logo
Long beeps in an endless loop No DRAM installed or detected
One long beep followed by Video card not found or video card
three short beeps memory bad
High frequency beeps when CPU overheated

system is working System running at a lower frequency

ASUS A7M266-D User’s Manual 39

7. During power-on, hold down <Delete> to enter BIOS setup. Follow the

* Powering Off your computer: You must first exit or shut down your

3. H/W SETUP

Powering Up

3. HARDWARE SETUP

instructions in 4. BIOS SETUP.

operating system before switching off the power switch. For ATX power
supplies, you can press the ATX power switch after exiting or shutting
down your operating system. If you use Windows 9X, click the Start
button, click Shut Down, and then click Shut down the computer?
The power supply should turn off after Windows shuts down.

NOTE: The message “Y ou can now safely turn of f your computer” will
not appear when shutting down with ATX power supplies.

ASUS A7M266-D User’s Manual40

4. BIOS SETUP

4.1 Managing and Updating Your BIOS

4.1.1 Upon First Use of the Computer System

It is recommended that you save a copy of the original motherboard BIOS
along with a Flash Memory Writer utility (AFLASH.EXE) to a bootable
floppy disk in case you need to reinstall the BIOS later . AFLASH.EXE is a
Flash Memory Writer utility that updates the BIOS by uploading a new
BIOS file to the programmable flash ROM on the motherboard. This file
works only in DOS mode. To determine the BIOS version of your mother­board, check the last four numbers of the code displayed on the upper left­hand corner of your screen during bootup. Larger numbers represent a newer
BIOS file.

1. Type FORMAT A:/S at the DOS prompt to create a bootable system
floppy disk. DO NOT copy AUTOEXEC.BAT & CONFIG.SYS to the
disk.

2. Type COPY D:\AFLASH\AFLASH.EXE A:\ (assuming D is your CD-
ROM drive) to copy AFLASH.EXE to the just created boot disk.

NOTE: AFLASH works only in DOS mode. It will not work with DOS
prompt in Windows and will not work with certain memory drivers that
may be loaded when you boot from your hard drive. It is recommended
that you reboot using a floppy.

3. Reboot your computer from the floppy disk. NOTE: BIOS setup must
specify “Floppy” as the first item in the boot sequence.

4. In DOS mode, type A:\AFLASH <Enter> to run AFLASH.

Updating BIOS

4. BIOS SETUP

IMPORTANT! If “unknown” is displayed after Flash Memory:, the memory

chip is either not programmable or is not supported by the ACPI BIOS and there­fore, cannot be programmed by the Flash Memory Writer utility.

ASUS A7M266-D User’s Manual 41

4. BIOS SETUP

5. Select 1. Save Current BIOS to File from the Main menu and press
<Enter>. The Save Current BIOS To File screen appears.

6. T ype a filename and the path, for example, A:\XXX-XX.XXX and then
press <Enter>.

4.1.2 Updating BIOS Procedures

WARNING! Only update your BIOS if you have problems with your mother-

board and you know that the new BIOS revision will solve your problems. Care­less updating can result in your motherboard having more problems!

4. BIOS SETUP

Updating BIOS

1. Download an updated ASUS BIOS file from the Internet (WWW or
FTP) (see ASUS CONTACT INFORMATION on page 3 for details)
and save to the disk you created earlier.

2. Boot from the disk you created earlier.

3. At the “A:\” prompt, type AFLASH and then press <Enter>.

4. At the Main Menu, type 2 and then press <Enter>. The Update BIOS
Including Boot Block and ESCD screen appears.

5. T ype the filename of your new BIOS and the path, for example, A:\XXX-

XX.XXX, and then press <Enter>.
NOTE: To cancel this operation, press <Enter>.

ASUS A7M266-D User’s Manual42

4. BIOS SETUP

6. When prompted to confirm the BIOS update, press Y to start the update.

7. The utility starts to program the new BIOS information into the flash
ROM. The boot block will be updated automatically only when neces­sary. This will minimize the chance that a failed update will prevent
your system from booting up. When the programming is finished, Flashed
Successfully will be displayed.

8. Follow the onscreen instructions to continue.

WARNING! If you encounter problems while updating the new BIOS, DO NOT

turn off your system since this might prevent your system from booting up. Just
repeat the process, and if the problem still persists, update the original BIOS file
you saved to disk above. If the Flash Memory Writer utility was not able to
successfully update a complete BIOS file, your system may not be able to boot
up. If this happens, your system will need servicing.

ASUS A7M266-D User’s Manual 43

Updating BIOS

4. BIOS SETUP

4. BIOS SETUP

(This page was intentionally left blank.)

4. BIOS SETUP

Updating BIOS

ASUS A7M266-D User’s Manual44

4. BIOS SETUP

4.2 BIOS Setup Program

This motherboard supports a programmable EEPROM that can be updated using
the provided utility as described in 4.1 Managing and Updating Your BIOS.

The utility is used if you are installing a motherboard, reconfiguring your system,
or prompted to “Run Setup”. This section describes how to configure your system
using this utility.

Even if you are not prompted to use the Setup program, at some time in the future
you may want to change the configuration of your computer. For example, you
may want to enable the Security Password Feature or make changes to the power
management settings. It will then be necessary to reconfigure your system using
the BIOS Setup program so that the computer can recognize these changes and
record them in the CMOS RAM of the EEPROM.

The EEPROM on the motherboard stores the Setup utility. When you start up the
computer, the system provides you with the opportunity to run this program. This
appears during the Power-On Self Test (POST). Press <Delete> to call up the Setup
utility . If you are a little bit late in pressing the mentioned key, POST will continue
with its test routines, thus preventing you from calling up Setup. If you still need to
call Setup, restart the system by pressing <Ctrl> + <Alt> + <Delete>, or by press­ing the Reset button on the system chassis. You can also restart by turning the
system off and then back on again. But do so only if the first two methods fail.

The Setup program has been designed to make it as easy to use as possible. It is a
menu-driven program, which means you can scroll through the various sub-menus
and make your selections among the predetermined choices.

To access the BIOS Setup program, press the <Delete> key after
the computer has run through its POST.

NOTE: Because the BIOS software is constantly being updated, the following
BIOS screens and descriptions are for reference purposes only and may not re­flect your BIOS screens exactly.

4. BIOS SETUP

Program Information

ASUS A7M266-D User’s Manual 45

4. BIOS SETUP

4.2.1 BIOS Menu Bar

The top of the screen has a menu bar with the following selections:

MAIN Use this menu to make changes to the basic system configuration.
ADVANCED Use this menu to enable and make changes to the advanced

features.

POWER Use this menu to configure and enable Power Management

features.

BOOT Use this menu to configure the default system device used to lo-

cate and load the Operating System.

EXIT Use this menu to exit the current menu or specify how to exit the

Setup program.

To access the menu bar items, press the right or left arrow key on the keyboard
until the desired item is highlighted.

4.2.2 Legend Bar

At the bottom of the Setup screen you will notice a legend bar. The keys in the
legend bar allow you to navigate through the various setup menus. The following
table lists the keys found in the legend bar with their corresponding alternates and

Menu Introduction

4. BIOS SETUP

functions.

Navigation Key(s) Function Description

<F1> or <Alt + H> Displays the General Help screen from anywhere in the BIOS

<Esc> Jumps to the Exit menu or returns to the main menu from a sub-

← or → (keypad arrow) Selects the menu item to the left or right
↑ or ↓ (keypad arrow) Moves the highlight up or down between fields

- (minus key) Scrolls backward through the values for the highlighted field
+ (plus key) or spacebar Scrolls forward through the values for the highlighted field
<Enter> Brings up a selection menu for the highlighted field
<Home> or <PgUp> Moves the cursor to the first field
<End> or <PgDn> Moves the cursor to the last field

Setup

menu

<F5> Resets the current screen to its Setup Defaults
<F10> Saves changes and exits Setup

ASUS A7M266-D User’s Manual46

4. BIOS SETUP

General Help

In addition to the Item Specific Help window, the BIOS setup program also pro­vides a General Help screen. This screen can be called up from any menu by sim­ply pressing <F1> or the <Alt> + <H> combination. The General Help screen lists
the legend keys with their corresponding alternates and functions.

Saving Changes and Exiting the Setup Program

See 4.7 Exit Menu for detailed information on saving changes and exiting the
setup program.

Scroll Bar

When a scroll bar appears to the right of a help window, it indicates that there is
more information to be displayed that will not fit in the window. Use <PgUp> and
<PgDn> or the up and down arrow keys to scroll through the entire help docu­ment. Press <Home> to display the first page, press <End> to go to the last page.
To exit the help window, press <Enter> or <Esc>.

Sub-Menu

Note that a right pointer symbol (as shown in the left view)
appears to the left of certain fields. This pointer indicates that
a sub-menu can be launched from this field. A sub-menu con­tains additional options for a field parameter . To call up a sub­menu, simply move the highlight to the field and press <En­ter>. The sub-menu will then immediately appear. Use the
legend keys to enter values and move from field to field within
a sub-menu just as you would within a menu. Use the <Esc>
key to return to the main menu.

Take some time to familiarize yourself with each of the legend keys and their
corresponding functions. Practice navigating through the various menus and sub­menus. If you accidentally make unwanted changes to any of the fields, use the set
default hot key <F5>. While moving around through the Setup program, note that
explanations appear in the Item Specific Help window located to the right of each
menu. This window displays the help text for the currently highlighted field.

NOTE: The item heading in square brackets represents the default setting for
that field.

4. BIOS SETUP

Menu Introduction

ASUS A7M266-D User’s Manual 47

4. BIOS SETUP

4.3 Main Menu

When the Setup program is accessed, the following screen appears:

System Time [XX:XX:XX]

Sets your system to the time that you specify (usually the current time).
The format is hour, minute, second. Valid values for hour, minute and sec-

4. BIOS SETUP

Main Menu

ond are Hour: (00 to 23), Minute: (00 to 59), Second: (00 to 59). Use the
<Tab> or <Shift> + <Tab> keys to move between the hour, minute, and
second fields.

System Date [XX/XX/XXXX]

Sets your system to the date that you specify (usually the current date). The
format is month, day , year . Valid values for month, day, and year are Month:
(1 to 12), Day: (1 to 31), Y ear: (100 year range). Use the <T ab> or <Shift>
+ <Tab> keys to move between the month, day, and year fields.

Legacy Diskette A [1.44M, 3.5 in.], Legacy Diskette B [None]

Sets the type of floppy drives installed. Configuration options: [None]
[360K, 5.25 in.] [1.2M , 5.25 in.] [720K , 3.5 in.] [1.44M, 3.5 in.]
[2.88M, 3.5 in.]

Floppy 3 Mode Support [Disabled]

This is required to support older Japanese floppy drives. Floppy 3 Mode
support will allow reading and writing of 1.2MB (as opposed to 1.44MB)
on a 3.5-inch diskette. Configuration options: [Disabled] [Drive A]
[Drive B] [Both]

ASUS A7M266-D User’s Manual48

4. BIOS SETUP

4.3.1 Primary & Secondary Master/Slave

NOTE: Before attempting to configure a hard disk drive, make sure you
have the configuration information supplied by the manufacturer of the
drive. Incorrect settings may cause your system to not recognize the in­stalled hard disk. To allow the BIOS to detect the drive type automati­cally, select [Auto].

Type [Auto]

Select [Auto] to automatically detect an IDE hard disk drive. If automatic
detection is successful, the correct values will be filled in for the remaining
fields on this sub-menu. If automatic detection fails, your hard disk drive
may be too old or too new. You can try updating your BIOS or enter the
IDE hard disk drive parameters manually.

NOTE: After the IDE hard disk drive information has been entered into
BIOS, new IDE hard disk drives must be partitioned (such as with FDISK)
and then formatted before data can be read from and write on. Primary
IDE hard disk drives must have its partition set to active (also possible
with FDISK).

4. BIOS SETUP

Master/Slave Drives

Other options for the Type field are:

[None] - to disable IDE devices

ASUS A7M266-D User’s Manual 49

4. BIOS SETUP

IMPORTANT: If your hard disk was already formatted on an older previous system,

incorrect parameters may be detected. You will need to enter the correct parameters
manually or use low-level format if you do not need the data stored on the hard disk.

If the parameters listed differ from the ones used when the disk was formatted, the
disk will not be readable. If the auto-detected parameters do not match the ones that
should be used for your disk, you should enter the correct ones manually by setting
[User Type HDD].

[User Type HDD]

Master/Slave Drives

4. BIOS SETUP

Manually enter the number of cylinders, heads and sectors per track for
your drive. Refer to your drive documentation or look on the drive for this
information. If no drive is installed or if you are removing a drive and not
replacing it, select [None].

Translation Method [LBA]

Select the hard disk drive type in this field. When Logical Block Addressing
is enabled, 28-bit addressing of the hard drive is used without regard for
cylinders, heads, or sectors. Note that LBA Mode is necessary for drives
with greater than 504MB in storage capacity . Configuration options: [LBA]
[LARGE] [Normal] [Match Partition Table] [Manual]

Cylinders

This field configures the number of cylinders. Refer to your drive docu­mentation to determine the correct value to enter into this field. NOTE: To
make changes to this field, the Type field must be set to [User Type HDD]
and the Translation Method field must be set to [Manual].

ASUS A7M266-D User’s Manual50

4. BIOS SETUP

Head

This field configures the number of read/write heads. Refer to your drive
documentation to determine the correct value to enter into this field. NOTE:
To make changes to this field, the Type field must be set to [User Type
HDD] and the Translation Method field must be set to [Manual].

Sector

This field configures the number of sectors per track. Refer to your drive
documentation to determine the correct value to enter into this field. NOTE:
To make changes to this field, the Type field must be set to [User Type
HDD] and the Translation Method field must be set to [Manual].

CHS Capacity

This field shows the drive’s maximum CHS capacity calculated automati-
cally by the BIOS from the drive information you entered.

Maximum LBA Capacity

This field shows the drive’s maximum LBA capacity calculated automati-
cally by the BIOS from the drive information you entered.

Multi-Sector Transfers [Maximum]

This option automatically sets the number of sectors per block to the high­est number supported by the drive. This field can also be configured manu­ally . Note that when this field is automatically configured, the set value may
not always be the fastest value for the drive. Refer to the documentation that
came with your hard drive to determine the optimal value and set it manu­ally. NOTE: To make changes to this field, the Type field must be set to
[User Type HDD]. Configuration options: [Disabled] [2 Sectors] [4 Sec­tors] [8 Sectors] [16 Sectors] [32 Sectors] [Maximum]

SMART Monitoring [Disabled]

This allows the enabling or disabling of the S.M.A.R.T. (Self-Monitoring,
Analysis and Reporting Technology) system which utilizes internal hard
disk drive monitoring technology . This feature is normally disabled because
system resources used in this feature may decrease system performance.
Configuration options: [Disabled] [Enabled]

PIO Mode [4]

This option lets you set a PIO (Programmed Input/Output) mode for the
IDE device. Modes 0 through 4 provide successively increased performance.
Configuration options: [0] [1] [2] [3] [4]

4. BIOS SETUP

Master/Slave Drives

Ultra DMA Mode [Disabled]

Ultra DMA capability allows improved transfer speeds and data integrity
for compatible IDE devices. Set to [Disabled] to suppress Ultra DMA capa­bility. NOTE: To make changes to this field, the Type field must be set to
[User Type HDD]. Configuration options: [0] [1] [2] [3] [4] [Disabled]

ASUS A7M266-D User’s Manual 51

4. BIOS SETUP

Other options for “Type:” are:
[CD-ROM] - for IDE CD-ROM drives

[LS-120] - for LS-120 compatible floppy disk drives
[ZIP-100] - for ZIP-100 compatible disk drives
[MO] - for IDE magneto optical disk drives
[Other ATAPI Device] - for IDE devices not listed here

After using the legend keys to make your selections on this sub-menu, press
the <Esc> key to exit back to the Main menu. When the Main menu ap­pears, you will notice that the drive size appear in the field for the hard disk
drive that you just configured.

4.3.2 Keyboard Features

Keyboard Features

4. BIOS SETUP

Boot Up NumLock Status [On]

This field enables users to activate the Number Lock function upon system
boot. Configuration options: [Off] [On]

Keyboard Auto-Repeat Rate [12/Sec]

This controls the speed at which the system registers repeated keystrokes.
Options range from 6 to 30 characters per second. Configuration options:
[6/Sec] [8/Sec] [10/Sec] [12/Sec] [15/Sec] [20/Sec] [24/Sec] [30/Sec]

Keyboard Auto-Repeat Delay [1/4 Sec]

This field sets the time interval for displaying the first and second charac­ters. Configuration options: [1/4 Sec] [1/2 Sec] [3/4 Sec] [1 Sec]

ASUS A7M266-D User’s Manual52

4. BIOS SETUP

Language [English]

This allows selection of the BIOS’ displayed language. Currently only English is available.

Supervisor Password [Disabled] / User Password [Disabled]

These fields allow you to set the passwords. To set the password, highlight the appro­priate field and press <Enter>. T ype in a password and press <Enter>. You can type up
to eight alphanumeric characters. Symbols and other keys are ignored. To confirm the
password, type the password again and press the <Enter>. The password is now set to
[Enabled]. This password allows full access to the BIOS Setup menus. To clear the
password, highlight this field and press <Enter>. The same dialog box as above will
appear . Press <Enter> and the password will be set to [Disabled].

A Note about Passwords

The BIOS Setup program allows you to specify passwords in the Main menu. The pass­words control access to the BIOS during system startup. The passwords are not case sen­sitive. In other words, it makes no difference whether you enter a password using upper or
lowercase letters. The BIOS Setup program allows you to specify two separate passwords:

a Supervisor password and a User password. When disabled, anyone may access all BIOS
Setup program functions. When enabled, the Supervisor password is required for entering
the BIOS Setup program and having full access to all configuration fields.

Forgot the Password?

If you forgot the password, you can clear the password by erasing the CMOS Real
Time Clock (RTC) RAM. The RAM data containing the password information is
powered by the onboard button cell battery. To erase the RTC RAM: (1) Unplug
your computer, (2) Short the solder points, (3) Turn ON your computer, (4) Hold
down <Delete> during bootup and enter BIOS setup to re-enter user preferences.

®

CR2032 3V

Lithium Cell

CMOS Power

A7M266-D

A7M266-D Clear RTC RAM

CLRTC

Short solder points
to Clear CMOS

Halt On [All Errors]

This field determines which types of errors will cause the system to halt.
Configuration options: [All Errors] [No Error] [All but Keyboard] [All but
Disk] [All but Disk/Keyboard]

Main Menu

4. BIOS SETUP

Installed Memory [XXX MB]

This display-only field displays the amount of conventional memory detected
by the system during bootup. You do not need to make changes to this field.

ASUS A7M266-D User’s Manual 53

4. BIOS SETUP

4.4 Advanced Menu

CPU0 / CPU1 Speed

This field displays the frequency of the central processors, CPU0 and CPU1.

Operating Frequency Setting [Manually]

This motherboard is preset for making frequency configurations “By
Jumper,” ie.: using DSW switches and jumpers. When the motherboard

4. BIOS SETUP

Advanced Menu

JEN jumper is reset to enable JumperFree
to configure the speed of the central processor. The default, [Manually],
allows for jumper/DSW FSB frequency settings; if two unlocked CPUs are
installed, changing the setting sets the external frequency of both CPUs.
Configuration options: [Manually] [Various MHz]

Set System Operation Frequency
Setting is set to

When the Operating Frequency Setting is set to [Manually], this field
configures the external frequency of the CPU. Select [Manually] to make
changes to the CPU Frequency field. If [950 MHz] is selected, the FSB
Frequency will be fixed at 100MHz, and if [1266 MHz] is selected, then
the FSB Frequency will be fixed at 133MHz. Configuration options:
[Default] [-1 MHz] [+1 MHz]

FSB Frequency [100MHz] (Display only)

This field displays the frequency to send to the system bus and PCI bus. The
bus frequency (external frequency) multiplied by the bus multiple equals the
CPU speed (the CPU’s internal frequency). If a faster Operating Frequency is
selected, the FSB automatically increases. Selecting frequencies higher than
recommended for the processor may cause the system to hang or crash.
Display options: [100 MHz] [133 MHz]

[Default])

™

mode, then this field allows you

(when Operating Frequency

ASUS A7M266-D User’s Manual54

4. BIOS SETUP

System Performance [Normal Mode]

The default setting, [Normal Mode], seeks to balance optimal performance
with system stability . To optimize the performance of motherboard circuits
and the CPU, changing the setting to [Turbo Mode] tells the clock generator
to increase the frequency to the DDR RAM memory system. Configuration
options: [Normal Mode] [Turbo Mode]

Spread Spectrum Control [Enabled]

Leave on default setting. Spread spectrum typically reduces system electro­magnetic interference (EMI) by 8dB to 10dB.

CPU Level 1 Cache, CPU Level 2 Cache [Enabled]

These fields allow you to choose from the default of [Enabled] or choose
[Disabled] to turn on or off the CPU’s Level 1 and Level 2 built-in cache.
Configuration options: [Disabled] [Enabled]

BIOS Update [Enabled]

This functions as an update loader integrated into the BIOS to supply the
processor with the required data. In the default position of [Enabled], the
BIOS will load the update on all processors during system bootup. Configu­ration options: [Disabled] [Enabled]

PS/2 Mouse Function Control [Auto]

The default of [Auto] allows the system to detect a PS/2 mouse on startup.
If detected, IRQ12 will be used for the PS/2 mouse. IRQ12 will be reserved
for expansion cards only if a PS/2 mouse is not detected. [Enabled] will
always reserve IRQ12, whether on startup a PS/2 mouse is detected or not.
Configuration options: [Enabled] [Auto]

USB Legacy Support [Auto]

This motherboard supports Universal Serial Bus (USB) devices. The de­fault of [Auto] allows the system to detect a USB device at startup. If de­tected, the USB controller legacy mode is enabled. If not detected, the USB
controller legacy mode is disabled. When you set this field to [Disabled],
the USB controller legacy mode is disabled whether or not you are using a
USB device. Configuration options: [Disabled] [Enabled] [Auto]

OS/2 Onboard Memory > 64M [Disabled]

When using OS/2 operating systems with installed DRAM of greater than
64MB, you need to set this option to [Enabled]; otherwise, leave this on
[Disabled]. Configuration options: [Disabled] [Enabled]

Advanced Menu

4. BIOS SETUP

ASUS A7M266-D User’s Manual 55

4. BIOS SETUP

Notes for JumperFree Mode

System Hangup

If your system crashes or hangs due to improper frequency settings, power
OFF your system and restart. The system will start up in safe mode running
at a bus speed of 100MHz. You will then be led to BIOS setup to adjust the
configurations.

JumperFree Mode

4. BIOS SETUP

NOTE: To achieve more stable performance and precise frequencies,

JumperFree Mode should not be selected with this version of the
A7M266-D.

ASUS A7M266-D User’s Manual56

4. BIOS SETUP

4.4.1 Chip Configuration

SDRAM Configuration [By SPD]

This sets the optimal timings for SDRAM related fields, depending on the
memory modules that you are using. Default setting is [By SPD], which
configures the subsequent 3 items by reading the contents in the SPD (Se­rial Presence Detect) device. The EEPROM on the memory module stores
critical parameter information about the module, such as memory type, size,
speed, voltage interface, and module banks. Configuration options: [By
SPD][User Define]

SDRAM CAS Latency

This controls the latency between the SDRAM read command and the time
that the data actually becomes available. NOTE: This field will only be
adjustable when SDRAM Configuration is set to [User Define].

SDRAM RAS Precharge Time

This controls the idle clocks after issuing a precharge command to the
SDRAM. NOTE: This field will only be adjustable when SDRAM
Configuration is set to [User Define].

SDRAM RAS to CAS Delay

This controls the latency between the SDRAM active command and the
read/write command. NOTE: This field will only be adjustable when
SDRAM Configuration is set to [User Define].

4. BIOS SETUP

Chip Configuration

AGP 4X Supported [Enabled]

This feature allows the CPU to write directly to the AGP card for up to 30%
performance gain over standard AGP 4X mode. Configuration options: [En­abled] [Disabled]

ASUS A7M266-D User’s Manual 57

4. BIOS SETUP

AGP Fast Write [Disabled]

Configuration options: [Enabled] [Disabled]

AGP Compensation [Bypass]

Configuration options: [Bypass] [Auto]

AGP Signal Driving [Auto]

Configuration options: [Auto] [Manual]

Graphics Aperture Size [32MB]

This feature allows you to select the size of mapped memory for AGP graphic
data. Configuration options: [32MB] [64MB] [128MB] [256MB] [512MB]

Video Memory Cache Mode [UC]

USWC (uncacheable, speculative write combining) is a new cache technol­ogy for the video memory of the processor. It can greatly improve the dis­play speed by caching the display data. You must set this to UC (uncacheable)
if your display card cannot support this feature; otherwise your system may
not boot. Configuration options: [UC] [USWC]

Software DDR PDL Delay [Auto]

Configuration options: [Auto] [Manual]

Delayed Transaction [Disabled]

Leave on default setting. [Enabled] frees the PCI Bus when the CPU is

Chip Configuration

4. BIOS SETUP

accessing 8-bit ISA devices that normally consume about 50-60 PCI Clocks
without PCI delayed transaction. Select [Disabled] for ISA devices that are
not PCI 2.1 compliant. Configuration options: [Disabled] [Enabled]

PCI to DRAM Prefetch [Disabled]

Configuration options: [Disabled] [Enabled]

AGP to DRAM Prefetch [Enabled]

Configuration options: [Disabled] [Enabled]

S2K Slew Rate Control [3]

Configuration options: [0, 1, 2, 3, 4, 5, 6, 7]

Onboard PCI IDE Enable [Both]

You can select to enable the primary IDE channel, secondary IDE channel,
both, or disable both channels. Configuration options: [Both] [Primary]
[Secondary] [Disabled]

ASUS A7M266-D User’s Manual58

4. BIOS SETUP

4.4.2 I/O Device Configuration

Onboard FDC Swap A & B [No Swap]

This field allows you to reverse the hardware drive letter assignments of your
floppy disk drives. Configuration options: [No Swap] [Swap AB]

Floppy Disk Access Control [R/W]

Set this field to read and write the floppy disk (R/W). Change to [Read Only] for
reading disks.

Onboard Serial Port 1 [3F8H/IRQ4]
Onboard Serial Port 2 [2F8H/IRQ3]

These fields allow you to set the addresses for the onboard serial connectors. Se­rial Port 1 and Serial Port 2 must have different addresses. Configuration options:
[3F8H/IRQ4] [2F8H/IRQ3] [3E8H/IRQ4] [2E8H/IRQ10] [Disabled]

UART2 Use Infrared [Disabled]

When enabled, this field activates the onboard standard infrared feature and sets
the second serial UART to support the infrared module connector on the mother­board. If your system already has a second serial port connected to the onboard
COM2 connector, it will no longer work if you enable the infrared feature. See

Standard and Consumer Infrared Module Connector in 3.8 External Connec-
tors. Configuration options: [Disabled] [Enabled]

4. BIOS SETUP

I/O Device Config.

Onboard Parallel Port [378H/IRQ7]

This field sets the address of the onboard parallel port connector. If you disable
this feature, Parallel Port Mode and ECP DMA Select configurations will not be
available. Configuration options: [Disabled] [378H/IRQ7] [278H/IRQ5]

ASUS A7M266-D User’s Manual 59

4. BIOS SETUP

Parallel Port Mode [ECP+EPP]

This field allows you to set the operation mode of the parallel port. [Normal] al­lows normal-speed operation but in one direction only; [EPP] allows bidirectional
parallel port operation; [ECP] allows the parallel port to operate in bidirectional
DMA mode; [ECP+EPP] allows normal speed operation in a two-way mode. Con­figuration options: [Normal] [ECP] [EPP] [ECP+EPP]

ECP DMA Select [3]

This field allows you to configure the parallel port DMA channel for the selected

ECP mode. This selection is available only if you select [ECP] or [ECP+EPP] in
Parallel Port Mode above. Configuration options: [1] [3]

I-Panel Hot Key Mapping [Group 1]

If installing an optional I-Panel, then you must install Configuration options: [Group
1] [Group 2] [Group 3] [Group 4]

I-Panel Update Timer [Disabled]

Configuration options: [Disabled] [8 seconds] [16 Seconds] [32 Seconds]

4.4.3 PCI Configuration

4. BIOS SETUP

PCI Configuration

Slot 1, Slot 2/3, Slot 4, Slot 5 IRQ [Auto]

These fields set how IRQ use is determined for each PCI slot. The default
setting for each field is [Auto], which utilizes auto-routing to determine
IRQ use. Configuration options: [Auto] [NA] [3] [4] [5] [7] [9] [10] [11]
[12] [14] [15]

ASUS A7M266-D User’s Manual60

4. BIOS SETUP

PCI/VGA Palette Snoop [Disabled]

Some nonstandard VGA cards, such as graphics accelerators or MPEG video
cards, may not show colors properly. The setting [Enabled] should correct
this problem. Otherwise, leave this on the default setting of [Disabled].
Configuration options: [Disabled] [Enabled]

PCI Latency Timer [32]

Leave on default setting for best performance vs. stability.

SYMBIOS SCSI BIOS [Auto]

[Auto] allows the motherboard’s BIOS to detect whether you have a Symbios
SCSI card. If the Symbios SCSI card is detected, the motherboard’s Symbios
BIOS will be enabled; if no Symbios SCSI card is detected, the onboard
Symbios SCSI BIOS will be disabled.

[Disabled] will disable the motherboard’s Symbios SCSI BIOS so that the
BIOS on an add-on Symbios SCSI card can be used. If your Symbios SCSI
card does not have a BIOS, the Symbios SCSI card will not function.
Configuration options: [Auto] [Disabled]

Onboard Audio [Enabled]

This control enables or disables the onboard audio function. Configuration
options: [Enabled] [Disabled]

USB Function [Enabled]

This motherboard supports Universal Serial Bus (USB) devices. Keep the
default setting [Enabled] to connect USB devices. Select the setting [Dis­abled] if you do not wish to use the USB feature. Configuration options:
[Enabled] [Disabled]

Primary VGA BIOS [PCI Card]

If your computer has both PCI and AGP VGA cards, this field allows you to
select which of the cards will act as your primary graphics card. [AGP Card]
uses the AGP card as your primary card. The default, [PCI Card], allows
your PCI graphics card to take precedence when detected. Configuration
options: [PCI Card] [AGP Card]

PCI Configuration

4. BIOS SETUP

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4. BIOS SETUP

PCI/PNP IRQ Resource Exclusion

IRQ XX Reserved for Legacy Device [No/ICU]

These fields indicate whether or not the displayed IRQ for each field is
being used by an onboard legacy (non-PnP) ISA device. The default value
indicates either that the displayed IRQ is not used or that ISA Configuration
Utility (ICU) is being used to determine if an ISA device is using that IRQ.
Configuration options: [No/ICU] [Yes]

PCI Configuration

4. BIOS SETUP

PCI/PNP DMA Resource Exclusion

DMA x Reserved for Legacy Device [No/ICU]

These fields indicate whether or not the displayed DMA channel for each
field is being used by an onboard legacy (non-PnP) ISA device. The default
setting indicates either that the displayed DMA channel is not used or an
ICU is being used to determine if an ISA device is using that channel. Con­figuration options: [No/ICU] [Yes]

ASUS A7M266-D User’s Manual62

4. BIOS SETUP

PCI/PNP UMB Resource Exclusion

Reserved MEM Block BASE [No/ICU]

This field allows you to set the base address and block size of an onboard
legacy ISA device that uses any memory segment within the C800 and DFFF
address range. If you have such a device and you are not using an ICU to
specify its address range, select a base address from the six available op­tions; the Reserved MEM Block SIZE field will then appear for selecting
the block size. If you have more than one legacy ISA device onboard that
requires the use of this address range, you can increase the block size to 8K,
16K, 32K, or 64K. If you are using an ICU to accomplish this task, leave
Reserved MEM Block BASE to its default setting of [No/ICU]. Configu­ration options: [No/ICU] [C800] [CC00] [D000] [D400] [D800] [DC00]

PCI Configuration

4. BIOS SETUP

ASUS A7M266-D User’s Manual 63

4. BIOS SETUP

4.4.4 Shadow Configuration

Video ROM BIOS Shadow [Enabled]

This field allows you to change the video BIOS location from ROM to
RAM. Relocating to RAM enhances system performance, as information
access is faster than the ROM. Configuration options: [Disabled] [Enabled]

Shadow Configuration

4. BIOS SETUP

C8000-DFFFF Shadow [Disabled]

These fields are used for shadowing other expansion card ROMs. If you
install other expansion cards with ROMs on them, you will need to know
which addresses the ROMs use to shadow them specifically. Shadowing a
ROM reduces the memory available between 640K and 1024K by the amount
used for this purpose. Configuration options: [Disabled] [Enabled]

ASUS A7M266-D User’s Manual64

4. BIOS SETUP

4.5 Power Menu

The Power menu allows you to reduce power consumption. This feature turns off the
video display and shuts down the hard disk after a period of inactivity.

Power Management [User Define]

This option must be enabled to use any of the automatic power saving features. If
this menu item is set to [Disabled], power management features will not function
regardless of other field settings on this menu. The [User Define] option allows you
to make your own selections in the Power menu. When set to [Max Saving], system
power will be conserved to its greatest amount. The Suspend Mode field will then
be set to predefined value that ensures maximum power savings.

This field acts as the master control for the power management modes. [Max Sav­ing] puts the system into power saving mode after a brief period of system inactiv­ity; [Min Saving] is almost the same as [Max Saving] except that the system inactiv­ity period is longer; [Disabled] disables the power saving features; [User Define]
allows you to set power saving options according to your preference. Configuration
options: [User Define] [Disabled] [Min Saving] [Max Saving]

IMPORT ANT: Advanced Power Management (APM) should be installed to keep

the system time updated when the computer enters suspend mode activated by
the BIOS Power Management. For DOS environments, you need to add the
statement, DEVICE=C:\DOS\POWER.EXE, to your CONFIG.SYS file. For
Windows 3.x and Windows 95, you need to install Windows with the APM
feature. For Windows 98 and later, APM is automatically installed. A battery
and power cord icon labeled “Power Management” will appear in the “Control
Panel.” Choose “Advanced” in the Power Management Properties dialog box.

Power Menu

4. BIOS SETUP

ASUS A7M266-D User’s Manual 65

4. BIOS SETUP

Video Off Option [Suspend -> Off ]

This field determines when to activate the video off feature for monitor
power management. Configuration options: [Always On] [Suspend -> Off]

Video Off Method [DPMS OFF]

This field defines the video off features. The DPMS (Display Power Manage­ment System) feature allows the BIOS to control the video display card if it
supports the DPMS feature. [Blank Screen] only blanks the screen (use this
for monitors without power management or “green” features. If set up in your
system, your screen saver will not display with [Blank Screen] selected). [V/
H SYNC+Blank] blanks the screen and turns off vertical and horizontal scan-
ning. Configuration options: [Blank Screen] [V/H SYNC+Blank] [DPMS
Standby] [DPMS Suspend] [DPMS OFF] [DPMS Reduce ON]

HDD Power Down [Disabled]

Shuts down any IDE hard disk drives in the system after a period of inac­tivity as set in this user-configurable field. This feature does not affect
SCSI hard drives. Configuration options: [Disabled] [1 Min] [2 Min] [3
Min]...[15 Min]

Entering Suspend in [Disabled]

Sets the time period before the system goes into suspend mode. Configu­ration options: [Disabled] [30 Sec] [1 Min]... [1 Hour]

4. BIOS SETUP

Power Menu

PWR Button < 4 Secs [Soft Off]

When set to [Soft off], the ATX switch can be used as a normal system
power-off button when pressed for less than 4 seconds. [Suspend] allows
the button to have a dual function where pressing less than 4 seconds will
place the system in sleep mode. Regardless of the setting, holding the ATX
switch for more than 4 seconds will power off the system. Configuration
options: [Soft off] [Suspend]

CPU Overheat Throttle [Disabled]

This feature helps to prolong the life of the CPU and motherboard by
monitoring the temperature of the CPU; if overheating occurs, the CPU is
throttle down or shuts off completely. Configuration options: [Enabled]
[Disabled]

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4. BIOS SETUP

4.5.1 Power Up Control

AC PWR Loss Restart [Disabled]

This allows you to set whether you want your system to reboot after the
power has been interrupted. [Disabled] leaves your system off and [En­abled] reboots your system. [Previous State] sets your system back to the
state it is before the power interruption. Configuration options: [Disabled]
[Enabled] [Previous State]

PWR Up On External Modem Act [Disabled]

This allows either settings of [Enabled] or [Disabled] for powering up the
computer when the external modem receives a call while the computer is in
Soft-off mode. NOTE: The computer cannot receive or transmit data until
the computer and applications are fully running. Thus connection cannot be
made on the first try . T urning an external modem off and then back on while
the computer is off causes an initialization string that will also cause the
system to power on. Configuration options: [Disabled] [Enabled]

Wake On LAN or PCI Modem [Disabled]

Wake-On-LAN/PCI Modem allows your computer to be booted from an­other computer via a network by sending a wake-up frame or signal. Con­figuration options: [Disabled] [Enabled]

4. BIOS SETUP

Power Up Control

IMPORTANT: This feature requires an optional network interface card with W ake-

On-LAN and an ATX power supply with at least 720mA +5V standby power.

ASUS A7M266-D User’s Manual 67

4. BIOS SETUP

Automatic Power Up [Disabled]

This allows an unattended or automatic system power up. You may
configure your system to power up at a certain time of the day by selecting
[Everyday] or at a certain time and day by selecting [By Date]. NOTE:
Automatic Power Up will not work if the system is powered down by
operating systems, such as Windows 98, that have ACPI support enabled.
Configuration options: [Disabled] [Everyday] [By Date]

4. BIOS SETUP

Power Up Control

ASUS A7M266-D User’s Manual68

4. BIOS SETUP

4.5.2 Hardware Monitor

MB Temperature [xxxC/xxxF]
CPU0 Temperature [xxxC/xxxF]
CPU1 Temperature [xxxC/xxxF]

The onboard hardware monitor is able to detect the MB (motherboard),
CPU and power supply temperatures. Set to [Ignore] only if necessary.

CPU0 Fan Speed [xxxxRPM]
CPU1 Fan Speed [xxxxRPM]
Chassis Fan Speed [xxxxRPM]

The onboard hardware monitor is able to detect the CPU fan speed, power
supply fan speed, and the chassis fan speed in rotations per minute (RPM).
The presence of the fans is automatically detected. Set to [Ignore] only if
necessary.

VCORE0 Voltage, VCORE1 Voltage, +3.3V Voltage, +5V Voltage,
+12V Voltage

The onboard hardware monitor is able to detect the voltage output by the
onboard voltage regulators. Set to [Ignore] only if necessary.

Hardware Monitor

4. BIOS SETUP

NOTE: If any of the monitored items is out of range, an error message will
appear: “Hardware Monitor found an error. Enter Power setup menu for
details”. You will then be prompted to “Press F1 to continue, DEL to enter
SETUP”.

ASUS A7M266-D User’s Manual 69

4. BIOS SETUP

4.6 Boot Menu

Boot Sequence

The Boot menu allows you to select among the four possible types of boot
devices listed using the up and down arrow keys. By using the <+> or <Space>
key, you can promote devices and by using the <-> key, you can demote
devices. Promotion or demotion of devices alters the priority which the sys-

4. BIOS SETUP

Boot Menu

tem uses to search for a boot device on system power up. Configuration fields
include Removable Devices, IDE Hard Drive, ATAPI CD-ROM, and Other
Boot Device.

Removable Device [Legacy Floppy]

Configuration options: [Disabled] [Legacy Floppy] [LS120] [ZIP-100]
[ATAPI MO] [USB FDD] [USB ZIP]

IDE Hard Drive

This field allows you to select which IDE hard disk drive to use in the boot
sequence. Pressing [Enter] will show the product IDs of all connected IDE
hard disk drives.

ATAPI CD-ROM

This field allows you to select which ATAPI CD-ROM drive to use in the
boot sequence. Pressing [Enter] will show the product IDs of all your con­nected ATAPI CD-ROM drives.

ASUS A7M266-D User’s Manual70

4. BIOS SETUP

Other Boot Device Select [INT18 Device (Network)]

Configuration options: [Disabled] [SCSI/Onboard A T A Boot Device] [INT18
Device (Network)] [LANDesk (R) Service Agent]

Plug & Play O/S [No]

This field allows you to use a Plug-and-Play (PnP) operating system to con­figure the PCI bus slots instead of using the BIOS. When [Yes] is selected,
interrupts may be reassigned by the OS. When a non-PnP OS is installed or
you want to prevent reassigning of interrupt settings, select the default set­ting of [No]. Configuration options: [No] [Yes]

MPS 1.4 Support [Enabled]

Configuration options: [Disabled] [Enabled]

MP Table [Enabled]

Configuration options: [Disabled] [Enabled]

Reset Configuration Data [No]

The Extended System Configuration Data (ESCD) contain information about
non-PnP devices. It can also hold the complete record of how the system
was configured the last time it was booted. Select [Yes] only if you want to
clear these data during the Power-On Self Test (POST). Configuration op­tions: [No] [Yes]

Boot Virus Detection [Enabled]

This field allows you to set boot virus detection, ensuring a virus-free boot
sector. The system halts and displays a warning message when it detects a
virus. If this occurs, you can either allow the operation to continue or use a
virus-free bootable floppy disk to restart and investigate your system. Con­figuration options: [Disabled] [Enabled]

Quick Power On Self Test [Enabled]

This field speeds up the Power-On-Self Test (POST) routine by skipping
retesting a second, third, and fourth time. Configuration options: [Disabled]
[Enabled]

Boot Up Floppy Seek [Enabled]

When enabled, the BIOS will seek the floppy disk drive to determine whether
the drive has 40 or 80 tracks. Configuration options: [Disabled] [Enabled]

Boot Menu

4. BIOS SETUP

ASUS A7M266-D User’s Manual 71

4. BIOS SETUP

4.7 Exit Menu

Once you have made all of your selections from the various menus in the Setup pro­gram, you should save your changes and exit Setup. Select Exit from the menu bar to
display the following menu:

NOTE: Pressing <Esc> does not exit this menu. You must select one of the

4. BIOS SETUP

Exit Menu

options from this menu or <F10> from the legend bar to exit this menu.

Exit Saving Changes

Once you are finished making your selections, choose this option from the
Exit menu to ensure the values you selected are saved to the CMOS RAM.
The CMOS RAM is sustained by an onboard backup battery and stays on
even when the PC is turned off. Once this option is selected, a confirmation
is asked. Select [Yes] to save changes and exit.

NOTE: If you attempt to exit the Setup program without saving your
changes, the program will prompt you with a message asking if you want
to save your changes before exiting. Pressing <Enter> will then save changes
while exiting.

Exit Discarding Changes

This option should only be used if you do not want to save the changes you
have made to the Setup program. If you have made changes to fields other
than system date, system time, and password, the system will ask for con­firmation before exiting.

ASUS A7M266-D User’s Manual72

4. BIOS SETUP

Load Setup Defaults

This option allows you to load the default values for each of the parameters
on the Setup menus. When this option is selected or if <F5> is pressed, a
confirmation is requested. Select [Yes] to load default values. You can now
select Exit Saving Changes or make other changes before saving the val-
ues to the non-volatile RAM.

Discard Changes

This option allows you to discard the selections you made and restore the
values you previously saved. After selecting this option, a confirmation is
requested. Select [Y es] to discard any changes and load the previously saved
values.

Save Changes

This option saves your selections without exiting the Setup program. You
can then return to other menus and make changes. After selecting this op­tion, all selections are saved and a confirmation is requested. Select [Yes] to
save any changes to the non-volatile RAM.

ASUS A7M266-D User’s Manual 73

Exit Menu

4. BIOS SETUP

(This page was intentionally left blank.)

Exit Menu

5. SOFTWARE SETUP

5.1 Install Operating System

You should always use the latest operating system and updates when using new
hardware to ensure full compliancy . You may use any version of Windows 98/2000/
Millenium, but for Windows 95, you must use OSR 2.0 or later. For Windows NT

4.0, you must use Service Pack 3.0 or later.

5.2 Start Windows

When you start Windows 98 for the first time after installing your motherboard,
Windows will detect all plug-and play devices. Follow the Add New Hardware W iz­ard to install all necessary device drivers. When prompted to restart, select No and
then follow the setup procedures in this section.

NOTE: Because there are various motherboard settings, options, and expansion
cards, the following can only be used as a general reference and may not reflect
exactly the screen contents displayed on your screen.

5.3 A7M266-D Series Support CD

NOTE: The support CD contents are subject to change at any time without notice.
T o begin using your support CD disc, just insert it into your CD-ROM drive and the

support CD installation menu should appear. If the menu does not appear, double­click or run D:\ASSETUP.EXE (assuming that your CD-ROM drive is drive D:).

OS

5. S/W SETUP

75ASUS A7M266-D User’s Manual

5.3.1 Installation Menu

• AMD Bus Master IDE Driver: Installs Bus Master PCI IDE Driver.

• AMD IRQ Driver: Installs the necessary IRQ drivers.

• AMD Windows Power Management INF Driver: Installs the INF driver for

managing PC system resources.

• C-Media PCI Audio Driver and Application: Installs drivers and software

applications for the multi-channel PC sound system to support the C-Media Audio
Chip and 3D Audio circuitry.

• AMD Miniport Driver: Installs the necessary AGP miniport drivers to resolve

AGP problems.

• ASUS PC Probe: Installs a smart utility to monitor your computer’s fan,

temperature, and voltages.

• ASUS Update: Installs the ASUS BIOS flash utility.

• Microsoft DirectX Driver: Installs basic drivers to enable compatibility with

audi, visual and other special functions.

• PC-CILLIN 2000: Installs the latest anti-virus protection application.

• ADOBE Acrobat Reader: Installs the Adobe Acrobat Reader software

necessary to view user’s manuals saved in PDF format.

• Install Cyberlink Video and Audio Applications: Installs Cyberlink

5. S/W SETUP

Support CD

• ASUS Screen Saver: Installs the ASUS screen saver.

• Show Motherboard Information: Allows you to view information about your

• Browse Support CD: Allows you to view the contents of the CD.

• ReadMe: Allows you to view the support CD file list and contact information.

• Exit: Exits the CD installation menu.

Additonal CD Content: Flash BIOS writer in the AFLASH folder

76 ASUS A7M266-D User’s Manual

(CLICK THE RIGHT ARROW )

PowerPlayer SE and Cyberlink VideoLive Mail.

motherboard, such as product name, BIOS version, and CPU.

( TO RETURN CLICK THE LEFT ARROW .)

6. SOFTWARE REFERENCE

6. SOFTWARE REFERENCE

6.1 ASUS PC Probe

ASUS PC Probe is a convenient utility to continuously monitor your com­puter system’s vital components, such as fan rotations, voltages, and tem-
peratures. It also has a utility that lets you review useful information about
your computer, such as hard disk space, memory usage, and CPU type, CPU
speed, and internal/external frequencies through the DMI Explorer.

6.1.1 Starting ASUS PC Probe

When ASUS PC Probe starts, a splash screen appears allowing you to select
whether to show the screen again when you open PC Probe or not. To by­pass this startup screen, clear the Show up in next execution check box.

ASUS PC Probe

6. S/W REFERENCE

To open ASUS PC Probe, click the Windows Start button, point to Pro­grams, and then ASUS Utility, and then click Probe Vx.xx.

The PC Probe icon
that ASUS PC Probe is running. Clicking the icon will allow you to see the
status of your PC.

will appear on the taskbar’s system tray indicating

ASUS A7M266-D User’s Manual 77

6. SOFTWARE REFERENCE

6. S/W REFERENCE

ASUS PC Probe

6.1.2 Using ASUS PC Probe

Monitoring

Monitor Summary

Shows a summary of the items being
monitored.

Temperature Monitor

Shows the PC’s temperature (for
supported processors only).

(Move the slider up to increase the
threshold level or down to decrease

Temperature Warning

threshold adjustment

the threshold level)

Fan Monitor

Shows the PC’s fan rotation.

Fan Warning

threshold adjustment

(Move the slider up to increase the
threshold level or down to decrease

the threshold level)

Voltage Monitor

Shows the PC’s voltages.

ASUS A7M266-D User’s Manual78

6. SOFTWARE REFERENCE

Settings

Lets you set threshold levels and poll­ing intervals or refresh times of the PC’s
temperature, fan rotation, and voltages.

CPU Cooling System Setup

Lets you select when to enable software CPU

cooling. When When CPU Overheated is selected,

the CPU cooling system is enabled whenever the

CPU temperature reaches the threshold value.

History

Lets you record the monitoring activ­ity of a certain component of your PC
for future reference.

ASUS PC Probe

6. S/W REFERENCE

Fan Control

Lets you enable/disable Smart Fan
Control. Smart Fan Control adjusts the
fan speed automatically based on the
current CPU temperature and pre­defined threshold.

NOTE: This feature is not available on
ASUS Probe version 2.12.01/2.12.02

Information

Hard Drives

Shows the used and free space of the
PC’s hard disk drives and the file allo-
cation table or file system used.

ASUS A7M266-D User’s Manual 79

6. SOFTWARE REFERENCE

6. S/W REFERENCE

ASUS PC Probe

Memory

Shows the PC’s memory load, memory
usage, and paging file usage.

Device Summary

Shows a summary of devices in your PC.

DMI Explorer

Shows information pertinent to the PC,
such as CPU type, CPU speed, and in­ternal/external frequencies, and memory
size.

Utility

Lets you run programs outside of the
ASUS Probe modules. T o run a program,
click Execute Program. NOTE: This
feature is currently unavailable.

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6. SOFTWARE REFERENCE

6.1.3 ASUS PC Probe Task Bar Icon

Right clicking the PC Probe
icon will bring up a menu to
open or exit ASUS PC Probe
and pause or resume all sys­tem monitoring.

When the ASUS PC Probe
senses a problem with your
PC, portions of the ASUS PC
Probe icon changes to red, the
PC speaker beeps, and the
ASUS PC Probe monitor is dis­played.

ASUS PC Probe

6. S/W REFERENCE

ASUS A7M266-D User’s Manual 81

6. SOFTWARE REFERENCE

6. S/W REFERENCE

6.2 CyberLink PowerPlayer SE

PowerPlayer

CyberLink PowerPlayer SE is an intelligent software player that can automatically
detect and playback all kinds of video/audio files, CD and MP3 files as well. This is
the only software you need for all types of video and audio files. No need to waste
time identifying your file types.

6.2.1 Starting CyberLink PowerPlayer SE

To start CyberLink Power Player, click the Windows Start button, point
to Programs, and then CyberLink PowerPlayer SE, and then click
PowerPlayer.

6.2.2 CyberLink PowerPlayer Control Panel

Minimize

Zoom
About

Eject

Help

Power Off

Stop

Backward Scan

Backstep Frame

Previous

Stop

Configuration

i-Power!

CD Mode

Shuffle

Karaoke Next angle Next audio stream Next subtitle Add bookmark

Forward Scan
Step Frame

Next

Play

Increase Volume

Mute

Decrease Volume

Capture frame Go-Up Repeat Menu Go to bookmark

ASUS A7M266-D User’s Manual82

6. SOFTWARE REFERENCE

6.3 CyberLink VideoLive Mail

CyberLink’s VideoLive Mail Plus Ver 3.0 (a.k.a. VLM 3) is a convenient and excel-
lent way to create professional quality video mails from PC video/audio input de­vices and to send the mails to any recipients via VLM 3’s built-in e-mail system
through the Internet. VLM 3’s mails comprise video, sound, or snapshot informa-
tion; and thus may convey the most profound information to target audiences. It is
very convenient for mail recipients who do not need to install additional software
component in order to view VLM 3 mails.

VLM 3 works as a very applicant sales tool. It efficiently delivers profound and live
product information to your target customers without costing a fortune. VLM 3 also
helps corporate managers easily give vivid speeches and broadcast through corpo­rate E-mail system. For personal or home users, VLM 3 easily records live video
clips allowing users to send them to friends or family members across the Internet.

VLM 3 loads video messages from PC cameras, digital camcorders, analog camcorder
via video capture cards, or from an existing AVI video clips, and captures audio
messages from PC microphones. Video and audio messages are encoded at a very
high compressed rate in a real-time mode. From data input, data conversion, to
sending video mails via Internet, or saving data to disks, the whole procedure is
done in an easy and continuous process.

VideoLive Mail

6. S/W REFERENCE

VLM 3’s video clip compression rate is up to 1:900, and its playback rate is up to 30
frame per second. VLM 3 provides CIF (352 x 288 pixel) display resolution, and
support true color configuration. A one-minute video mail with QCIF (176 x 144)
resolution takes up less than 500KB of memory , making it easy to transmit and save
mail. Users may always adjust resolution and recording parameters for different
purpose.

VLM 3 supports all the hardware devices that are compliant with Video for Win­dows standard. V ideo for W indows is a well-accepted and well-tested standard. Thus,
users do not have to worry about compatibility issues.

ASUS A7M266-D User’s Manual 83

6. SOFTWARE REFERENCE

6. S/W REFERENCE

VideoLive Mail

6.3.1 Starting VideoLive Mail

To start VideoLive Mail, click the Windows Start button, point to Programs, and
then CyberLink VideoLive Mail, and then click VideoLive Mail x.x. VLM 3’s
Setup W izard will start and guide you through configuring the video and audio input
peripherals and to setup the e-mail environment.

1. Setup Wizard first will prompt a dialog to confirm that you want to configure

the hardware and E-mail setting. Click Yes to continue the system parameter
configuration.

2. The e-mail configuration screen appears. You will need to enter your name and

the e-mail address. Click Next to continue.

3. The Internet e-mail configuration screen appears. You may choose to use the
VLM 3 built-in E-mail functionality (SMTP mail), or use MAPI compliant e­mail system. Consult your ISP or MIS staff for the E-mail server IP address if
you are not sure. Click Next to continue.

4. Then the Video Configuration screen shows up. You may have to specify the
video driver for VLM 3, if there are several video-input devices installed. Then
configure the number of video frames to be captured per second. Note that the
more frames you choose, the bigger the file size will be. Click Next to continue.

5. Then the Setup Wizard will then search for the GSM CODECS module for au­dio compression, and prompt you with the result. Click Next to continue.

6. Setup Wizard then tests the audio volume during playing and recording. Click
Next when ready.

7. Configuration done. Click Finish to complete the environmental setting proce­dure.

6.3.2 CyberLink VideoLive Mail User Interface

Exit
Minimize
Help

Video Mail Wizard

Snapshot to File

Video Configuration

Start Playback

Stop Recording / Playback

Start Recording

Pause

Save Video File
Send Mail

Load Video File
Send Mail

Increase MIC volume
Decrease MIC volume

Increase speaker volume
Decrease speaker volume

ASUS A7M266-D User’s Manual84

6. SOFTWARE REFERENCE

6.4 ASUS Live Update

ASUS LiveUpdate is a utility that allows you to update your motherboard’s
BIOS and drivers. The use of this utility requires that you are properly con­nected to the Internet through an Internet Service Provider (ISP).

1. Start ASUS Update
Launch the utility from your W indows Start
menu:Programs/AsusUpdate

2. Select an update method.

3. If you selected updating/downloading

from the Internet, you will need to select
an Internet site. Choose the site that is
closest to you or click Auto Select.

ASUS Live Update

6. S/W REFERENCE

4. From the FTP site, select the BIOS

version that you wish to download. Click
Next.

5. Follow the instructions on the succeed-

ing screens to complete the update
process. If you selected the option to
update the BIOS from a file, a window
pops up prompting you to locate the file.
Select the file, click Save, then follow the
screen instructions to complete the update
process.

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6. S/W REFERENCE

Multi-Channel Audio

6.5 Multi-Channel Audio Feature Setup

The C-Media PCI Audio Driver and Applications are located on the
Support CD. Installing the programs enables the multi-channel audio
feature. Note: You must use 4 or 6 channel speakers for this setup.

6.5.1 The C-Media Audio Mixer

1. The C-Media Mixer
Icon appears on the

bottom right of the screen, or the Mixer
may be turned on from the PCI Audio

Applications & Audio Rack groups on the
Main Program menu using the Windows Start button:
Click on the icon to display the C-Media Audio Mixer:

6. SOFTWARE REFERENCE

2. The Tools button activates the S/PDIF,
Speaker, Volume, Sound Effects and
Options menus. The Speaker menu

offers various configurations for your
speaker system. This menu enables the
Line-In and Mic-In audio jacks on the
back panel to setup additional speakers
for 4 and 6-Channel Audio.

6.5.2 The C-Media Applications

1. Activate the Multi-Channel Audio Demo program from the PCI Audio
Applications group
on the Main Pro­gram menu. Access

various applications:

the AudioRack,
CD Player, MIDI
Player, Mixer, and
MP3 Player.

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6. SOFTWARE REFERENCE

2. The PCI Multi-Channel Audio Demo has several Demos to help fine
tune your PC speaker system. The Help menu features several pages of
instructions and hardware diagrams
to help configure and test the
system. To activate the Speaker
Channel Configuration Menu,
point your mouse arrow and click on
the TV box.

3. The Speaker Channel Configuration
Menu displays all the options
available to help tune the multi­channel audio system even more
precisely.

Multi-Channel Audio

6. S/W REFERENCE

6.2.3 Connector Configuration

The chart below displays the configurations for

the line connectors on the yellow MIDI/Game/
Audio connector port located on the
back panel. The three female connectors are
available for use in the 6-Channel audio
system.

MicLine InLine Out

Connector Settings and Functions

Headphone/ 4-Speaker 6-Speaker
2-Speaker

Lime Line Out/ Line Out/ Line Out/

Front Spkr Out Front Spkr Out Front Spkr Out
Light Blue Line In
Pink Mic In Mic In Center Speaker Out,

Note: See 6 in Section 3, Motherboar d settings for the Bass/Center Jumper
settings to fine tune the output signals.

Rear Speaker Out

Rear Speaker Out

Sub-woofer

ASUS A7M266-D User’s Manual 87

6. S/W REFERENCE

6.6 3Deep Color Tuner

3Deep Color

The 3-Deep color tuner is designed to match your CRT or LCD color
monitor to maximize the color quality of all graphical applications. Users
may also tune their internet applications to match “true” internet source
colors with the color displayed on the monitor.

Simply run the setup program from the start menu and follow the instruc­tions on the various setup/test screens.

6.6.1 3Deep Color Tuning

1. Select the type of monitor connected

to the computer, either CRT or
LCD.

6. SOFTWARE REFERENCE

2. Follow the instructions to manually

adjust the brightness level of the
monitor.

3. Select the faintest of the three

colors: blue, red and green.

ASUS A7M266-D User’s Manual88

6. SOFTWARE REFERENCE

4. Select the color squares which most
closely blend and match with the
background.

5. The next step repeats
the color matching
process to achieve full
color quality.

6. The tuning process is complete. Click on the bottom left button to
connect to the internet and follow the instructions.

3Deep Color

6. S/W REFERENCE

6.5.2 The 3Deep Control Panel

Using the Windows Start button, activate the 3Deep Control Panel
program from the 3Deep Applications group on the Main Program menu.
The control panel offers access to the

Color Wizard tuning program, a
Game Gamma setting and a Tweak

slider for brightness adjustment.

ASUS A7M266-D User’s Manual 89

6. SOFTWARE REFERENCE

(This page was intentionally left blank.)

ASUS A7M266-D User’s Manual90

7. APPENDIX

7.1 Qualified Vendors List

This chart shows available power supplies, expansion cards and registered
DIMMs on the market that are suitable for use with the A7M266-D.
Visit the ASUS website for new updates: http://www.asus.com

VGA Card Vendors:
ASUS AGP-V3800M

ASUS AGP-V6600 Pro
ASUS AGP-V6600MX
ASUS AGP-V7100 Pro
ASUS AGP-V7100Magic
ASUS AGP-V7700 Pro
ASUS AGP-V7700
ASUS AGP-V8200
ATI Radeon 64MB DDR
Creative Geforce 2
ELSA Gladiac 311
ELSA Gladiac 511TV-out
ELSA Gladiac Geforce 2 Ultra
Leadtek WinFast Geforce 3
Leadtek WinFast Geforce 2MX DH Pro
Matrox Millennium G550
MSI MS 8817 Geforce 2MX

Vendors

7 . APPENDIX

PCI VGA Card Vendors:
ASUS PCI-V3800

SCSI Controller Card Vendors:
Adaptec ASC-29160N 64Bit

Adaptec AHA-3950U2B 64Bit
Adaptec AHA-2940U2W 64Bit
Adaptec ASC-39160 64Bit
ASUS PCI-DA2200 32Bit
ASUS PCI-SC896 32Bit

ASUS PCI-SC896 64Bit

ASUS A7M266-D User’s Manual 91

7. APPENDIX

Vendors

7. APPENDIX

LAN Card Vendors:
3COM 3C900C 32Bit
3COM 3C905B-TX 32Bit
3COM 3C905C-TXM 32Bit
Acton EN1207D-TX 32Bit
Adaptec ANA-26044 64Bit
ASUS PCI-DEC100TX 32Bit
ASUS PCI-L101 32Bit
Compaq NETFLEX-3/P 32Bit
D-Link DFE-530TX 32Bit
D-Link DFE-500TX 32Bit
HP J3171A 32Bit
Intel 82559 32Bit
Intel 82550 32Bit
Realtek RTL8139 32Bit
SMC 9332DTS 32Bit
Soho Ethernet 32Bit
SMC 9432TX 32Bit
ASUS PCI-13C920 32Bit

Other Card Type Vendors:

ASUS PCI-1394C (device connection) 32Bit
PHILIPS PSC 703 (audio) N/A
PHILIPS PSC 706 (audio) N/A

Power Supply Vendors:

Herolchi HEC-450CR-AT

A7M266-D Registered DIMM Vendors:

Vendor MB Memory Chip Chip Part Number
Apacer 128 SAMSUNG K4H280838B-TCB0

Apacer 256 SAMSUNG K4H280838B-TCB0
Apacer 512 SAMSUNG K4H560838B-TCB0
ATP 128 SAMSUNG K4H280838C-TCB0
ATP 256 SAMSUNG K4H280838C-TCB0
ATP 512 SAMSUNG K4H560838B-TCB0
Infineon 256 Infineon HYB25D256800AT-7
Infineon 1024 Infineon 17004-00
Kingston 128 SAMSUNG NT5DS16M8AT-75B
Kingston 256 SAMSUNG K4H280838C-TCB0
Kingston 512 SAMSUNG NT5DS64M4AT-7K
Kingston 1024 Infineon 17004-00
Samsung 256 SAMSUNG K4H280838B-TCB0
TwinMOS 256 SAMSUNG K4H280838B-TCB0
TwinMOS 256 NANYA NT5DS16M8AT-7K
Winbond 256 Winbond W942508AH-7
Winbond 512 Winbond W942504AH-7

ASUS A7M266-D User’s Manual92

7. APPENDIX

7.2 Glossary

1394

1394 is the IEEE designation for a high performance serial bus tht offers data transfers at 100/
200/400 Mbps. This serial bus defines both a back plane physical layer and a point-to-point
cable-connected virtual bus. The primary application of the cable version is the integration of
I/O connectivity at the back panel of personal computers using a low-cost, scalable, high­speed serial interface. The 1394 standard also provides new services such as live connect/
disconnect capability for external devices including disk drives, printers and hand-held pe­ripherals such as scanners and cameras. This is a new standard to complement the slower
USB interface and to compete with the more expensive SCSI interface.

AC97 (Audio Codec '97)

AC '97 is the next step in enabling PCs with audio quality comparable to consumer electron­ics devices. The specification defines new cost-effective options to help integrate the compo­nents necessary to support next-generation auto-intensive PC applications such as DVD, 3-D
multiplayer gaming and interactive music. The specification also defines new extensions sup­porting modem and docking to help both desktop and mobile manufacturers adopt these new
technologies more quickly and cost-effectively . This specification uses software emulation to
compete with the PCI SoundBlaster specification.

ACPI (Advanced Configuration and Power Interface)

The ACPI specification defines a cross-platform interface designed to support many operat­ing systems. ACPI defines a flexible and abstract hardware interface that provides a standard
way to integrate power management features throughout a PC system, including hardware,
operating system and application software. This enables the system to automatically turn ON
and OFF peripherals such as CD-ROMs, network cards, hard disk drives, and printers, as well
as consumer devices connected to the PC such as VCRs, TVs, phones, and stereos. With this
technology , peripherals will also be able to activate the PC. For example, inserting a tape into
a VCR can turn on the PC, which could then activate a large-screen TV and high-fidelity
sound system.

AGP (Accelerated Graphics Port)

An interface specification that enables high-performance 3D graphics on mainstream PCs.
AGP was designed to of fer the necessary bandwidth and latency to perform texture mapping
directly from system memory.

Glossary

7 . APPENDIX

Bus Bus Frequency Bandwidth Data Transfer Rate

PCI 33MHz 33MHz 133MByte/sec
AGP 1X 66MHz 66MHz 266MByte/sec
AGP 2X 66MHz 133MHz 512MByte/sec
AGP 4X 66MHz 266MHz 1024MByte/sec

Backup. A copy of a file, directory, or volume on a separate storage device from the original.
This copy is for the purpose of data retrieval in case the original is accidentally erased, dam­aged, or destroyed.

BIOS (Basic Input/Output System)

BIOS is a set of routines that affect how the computer transfers data between computer com­ponents, such as memory , disks, and the display adapter. The BIOS instructions are built into
the computer’s read-only memory. BIOS parameters can be configured by the user through
the BIOS Setup program. The BIOS can be updated using the provided utility to copy a new
BIOS file into the EEPROM.

Bit (Binary Digit)

Represents the smallest unit of data used by the computer. A bit can have one of two values:
0 or 1.

ASUS A7M266-D User’s Manual 93

7. APPENDIX

Glossary

7. APPENDIX

Boot

Boot means to start the computer operating system by loading it into system memory. When
the manual instructs you to “boot” your system (or computer), it means to turn ON your
computer. “Reboot” means to restart your computer. When using W indows 95 or later , select­ing “Restart” from “Start | Shut Down...” will reboot your computer.

Bus Master IDE

PIO (Programmable I/O) IDE requires that the CPU be involved in IDE access and waiting
for mechanical events. Bus master IDE transfers data to/from the memory without interrupt­ing the CPU. Bus master IDE driver and bus master IDE hard disk drives are required to
support bus master IDE mode.

Byte (Binary Term)

One byte is a group of eight contiguous bits. A byte is used to represent a single alphanumeric
character, punctuation mark, or other symbol.

Cache Memory . A type of RAM that allows a faster from the CPU than a regular RAM. The
cache memory eliminates the CPU wait state. When the CPU reads data from the main memory ,
a copy of this data is stored in the cache memory . The next time the same address, the data is
transferred from the cache memory instead of from the main memory.

CODEC (Compressor/Decompressor). A software component that translates video or au­dio between its uncompressed form and the compressed form in which it is stored.

COM Port

COM is a logical device name used by to designate the computer serial ports. Pointing de­vices, modems, and infrared modules can be connected to COM ports. Each COM port is
configured to use a different IRQ and address assignment.

Concurrent PCI

Concurrent PCI maximizes system performance with simultaneous CPU, PCI and ISA bus
activities. It includes multi-transaction timing, enhanced write performance, a passive release
mechanism and support for PCI 2.1 compliant delayed transactions. Concurrent PCI provides
increased bandwidth, reduced system latencies, improves video and audio performance, and
improves processing of host based applications.

CPU (Central Processing Unit)

The CPU, sometimes called “Processor,” actually functions as the “brain” of the computer. It
interprets and executes program commands and processes data stored in memory. Currently,
there are socket 370 (for Pentium III FC-PGA and Celeron-PPGA), socket 7 (for Pentium,
AMD, Cyrix, IBM), slot 1 (for Pentium II and III), slot 2 (for Xeon), and slot A (for AMD)
processors.

Device Driver

A device driver is a special set of instructions that allows the computer’s operating system to
communicate with devices such as VGA, audio, printer, or modem.

DOS (Disk Operating System)

DOS is the foundation on which all other programs and software applications operate, includ­ing Windows. DOS is responsible for allocating system resources such as memory, CPU
time, disk space, and access to peripheral devices. For this reason, DOS constitutes the basic
interface between you and your computer.

DRAM (Dynamic Random Access Memory)

A type of RAM that requires refresh cycles to prevent the loss of the data stored in it.

There are several different types of DRAM such as, EDO DRAM (Extended Data Output
DRAM), SDRAM (Synchronous DRAM), and RDRAM (Rambus DRAM) and DDR DRAM,
(Double-Data Rate DRAM).

Flash ROM

non-volatile memory device that retains its data even when power is removed. This device is
similar to EPROM, but unlike EPROM which can be erased only using an ultra-violet light,
flash ROM can be electrically erased. Flash ROM is normally used for system BIOS, which
initiates hardware devices and sets up necessary parameters for the OS. Since the flash ROM

contents can be modified, users can easily update the BIOS..

ASUS A7M266-D User’s Manual94

7. APPENDIX

IDE (Integrated Drive Electronics)

IDE devices integrate the drive control circuitry directly on the drive itself, eliminating the
need for a separate adapter card (in the case for SCSI devices). UltraDMA/33 IDE devices
can achieve up to 33MB/Sec transfer.

I/O (Input/Output)

The data transfers from the input devices like a keyboard, mouse, or scanner, to the output
devices like a printer or the monitor screen.

I/O Address

The specific memory location for a particular device. Two devices cannot share the same I/O
address space.

IrDA (Infrared Data Association)

An internaltional organization that creates and promotes inter-operable, low cost, infrared
data interconnection standards that support a walk-up, point-to-point model. The IrDA proto­col is designed to support transmission of data between two devices over short-range point­to-point infrared at speeds between 9.6Kbps and 4Mbps.

ISP (Internet Service Provider)

A company that provides customer access to the Internet and the World Wide Web for a fee.
The ISP also provides Internet utilities and services like e-mail, newsgroup, weather reports,
and a host of others. The user can connect to the ISP using a modem installed in the computer
and connected to a phone line.

LPT Port (Line Printer Port)

Logical device name reserved by DOS for the computer parallel ports. Each LPT port is
configured to use a different IRQ and address assignment.

MMX

A set of 57 new instructions designed to accelerate multimedia and communications applica­tions, such as 3D video, 3D sound, video conference.

Modem

A device that allows a computer to talk to another computer through the phone system.

Network

An interconnected computer system linked by telephone wires, or other means.

OnNow

The OnNow design initiative is a comprehensive, system-wide approach to system and de­vice power control. OnNow is a term for PC that is always ON but appears OFF and responds
immediately to user or other requests. The OnNow design initiative involves changes that
will occur in the Microsoft Windows operating system, device drivers, hardware, and appli­cations, and also relies on the changes defined in the Advanced Configuration and Power
Interface (ACPI) specification.

PC100/133

This is an industry-standard designation for memory capacity as a measure of the speed of the
memory bus. New platform requirements ensure that memory does not become a bottleneck
to system performance.

PCI Bus (Peripheral Component Interconnect Local Bus)

PCI bus is a standard specification that defines a 32-bit data bus interface.

PCI Bus Master

The PCI Bus Master can perform data transfer without local CPU help and the CPU can be
treated as one of the Bus Masters. PCI 2.1 supports concurrent PCI operation to allow the
local CPU and bus master to work simultaneously.

POST (Power On Self Test)

Powering on the computer initiates the POST , a series of software-controlled diagnostic tests.
The POST checks system memory, the motherboard circuitry, the display, the keyboard, the
diskette drive, and other I/O devices

Glossary

7 . APPENDIX

ASUS A7M266-D User’s Manual 95

7. APPENDIX

Glossary

7. APPENDIX

PS/2 Port

PS/2 ports are based on IBM Micro Channel Architecture. This type of architecture transfers
data through a 16-bit or 32-bit bus. A PS/2 mouse and/or keyboard may be used on ATX
motherboards.

RDRAM (Rambus DRAM)

Developed by Rambus, Inc., this type of memory can deliver up to 1.6GB of data per second.
RDRAM is the first interface standard that can be directly implemented on high performance
VLSI components such as, CMOS DRAMs, memory controllers, and graphics/video ICs.

RAM (Random Access Memory). The computer’s primary storage area used to write, store,
and retrieve information and program instructions which are passed to the CPU for process­ing. The information in RAM can be repeatedly re-written with new data. Compared to other
storage media like magnetic tape, floppy disk, and hard disk, RAM has an extraordinarily fast
access rate. RAM, however, is volatile, which means that the data stored in it are lost when
the system power is turned off, or if power glitches occur. See also DRAM and SDRAM.

ROM (Read Only Memory)

ROM is nonvolatile memory used to store permanent programs (called firmware) used in
certain computer components. Flash ROM (or EEPROM) can be reprogrammed with new
programs (or BIOS).

SCSI (Small Computer System Interface)

High speed multi-threaded I/O interface defined by the X3T9.2 committee of the American
National Standards Institute (ANSI) for connecting many peripheral devices. The standard
started from 10MBytes/sec to 160MBytes/sec available today.

SDRAM (Synchronous DRAM)

A type of DRAM with access signals that are synchronized with the CPU clock, eliminating
the delay associated with data transfers between the CPU and memory . SDRAM takes memory
access away from the CPU control; internal registers in the memory accept the request, and
lets the CPU do something else while the data requested is assembled for the next time the
CPU talks to the memory.

SPD for SDRAM module

Serial Presence Detect (SPD) is most like an ID detect for SDRAM module, it using a EE­PROM component on DIMM module for storing module configuration information inside.
The Serial Presence Detect function is implemented using a 2048 bit EEPROM component.
This nonvolatile storage device contains data programmed by the DIMM manufacturer that
identifies the module type and various SDRAM organization and timing parameters.

System Disk

A system disk contains the core file of an operating system that boots up the operating system.
TCP/IP (Transmission Control Protocol/Internet Protocol). The communications proto-

col used by the UNIX system and the Internet. TCP checks for lost packets, puts the data from
multiple packets into the correct order, and requests that missing or damaged packets be

resent.

USB (Universal Serial Bus)

A 4-pin serial cable bus that allows up to 127 plug and play computer peripherals such as
keyboard, mouse, joystick, scanner, printer , modem, and monitor to share a bandwidth through
a host scheduled token based protocol. This allows attaching or detaching while the host and
other peripherals are in operation. Supports synchronous and asynchronous transfer types
over the same set of wires up to 12Mbit/sec. USB 2.0 provides twice the transfer rate com­pared to USB 1.0 and competes with the 1394 standard.

Wake-On-LAN

Computer will automatically wake-up upon receiving a wake-up packet through a Network
interface when it is under power soft-off, suspend or sleep mode.

ASUS A7M266-D User’s Manual96

INDEX

Symbols

3Deep Color Tuner

Using 88

A

AC PWR Loss Restart 67
ASUS PC Probe

Using 77

ASUS Update

Using 85

ATAPI CD-ROM 70
ATX Power Supply Connector 37
Audio Port Connectors 29

B

BIOS

Beep Code 39
Smart BIOS 8

BIOS Beep Codes 39
Boot Sequence 70
Boot Up Floppy Seek 71
Boot Up NumLock Status 52
Boot Virus Detection 71

C

C-Media Audio Setup 86
Central Processing Unit 23
Central Processing Unit (CPU)

CPU socket 9

Chassis Fan Speed 69
Chassis Intrusion Lead 31
CHS Capacity 51
Connectors

ASUS EZ Plug 9
ATX power 9
ATX Power Supply 37
Audio Port 29
Floppy disk 9
Floppy Disk Drive 29, 34
IDE 9
Internal Audio 15, 34
Keyboard 27
Parallel Port 28
PS/2 Keyboard 27
PS/2 Mouse 27
Serial Port 28
SMBus 32
USB 28

CPU Fan Speed 69
CPU Temperature 69
CyberLink

PowerPlayer SE 83
VideoLive Mail 83

CyberLink PowerPlayer SE

Using 83

CyberLink VideoLive Mail

Using 83

Cylinders 50

D

Discard Changes 73
DMA x Used By ISA 62

E

ECP DMA Select 60
Exit Discarding Changes 72
Exit Saving Changes 72
Expansion Cards

Assigning IRQs 25

F

Floppy 3 Mode Support 48
Floppy Disk Drive Connector 29, 34

G

Glossary 91, 93

H

Halt On 53
Hardware Setup

CPU Installation 23

Memory Installation 22
HDD Power Down 66
Head 51
Headers

USB 32

I

IDE Activity LED Lead 36, 38
IDE Hard Drive 70
Installation

CPU 23
Installed Memory 53
Interrupts

Standard Assignments 25
IRQ XX Used By ISA 62
ISA MEM Block BASE 63

K

Keyboard Connector 27

L

Language 53
Leads

Chassis Intrusion 31

IDE Activity LED 36, 38

Reset Switch 38

System Message LED 38

System Power LED 38
Legacy Diskette A 48
Legacy Diskette B 48

ASUS A7M266-D User’s Manual 97

INDEX

LiveUpdate 88

Using 88

Load Setup Defaults 73

M

Maximum LBA Capacity 51
MB Temperature 69
Memory Hole At 15M-16M 55
Memory Installation 22
Motherboard

Specifications 9
Mouse Connector 27
Multi-Channel Audio 86

Using 86
Multi-Sector Transfers 51

O

Onboard Parallel Port 59
Onboard Serial Port 2 59
OS/2 Onboard Memory > 64M 55

P

Parallel Port Connector 28
Parallel Port Mode 60
PCI Latency Timer 61
PCI/VGA Palette Snoop 61
PIO Mode 51
Plug & Play O/S 71
Power Fan Speed 69
Power Management 65
PowerPlayer SE

Using 83
Procedure

CPU Installation 23
Procedures

Updating BIOS 42
PS/2 Keyboard Connector 27
PS/2 Keyboard Port 9
PS/2 Mouse Connector 27
PS/2 Mouse Port 9
PWR Up On Modem Act 67

Q

Quick Power On Self Test 71

R

Removable Device 70
Reset Switch Lead 38

SDRAM Configuration 55
SDRAM RAS Precharge Time 57
Sector 51
Serial Port Connectors 28
Serial ports 9
SMART Monitoring 51
SMBus Connector 32
Starting Up 39
Supervisor Password 53
SYMBIOS SCSI BIOS 61
System Date 48
System Message LED Lead 38
System Power LED Lead 38
System Time 48

T

Translation Method 50
Type 49

U

UART2 Use Standard Infrared 59
Ultra DMA Mode 51
Updating Your BIOS 41
USB Function 61
USB Headers 32
USB Legacy Support 55
USB Ports 28
USB ports 9
Using

3Deep Color Tuner 88
ASUS PC Probe 77
ASUS Update 85
LiveUpdate 88
PowerPlayer SE 83

V

VCORE Voltage 69
Video Off Method 66
Video Off Option 66
Video ROM BIOS Shadow 64
VideoLive Mail 83

Using 83

Voltage

+12 69
+3.3 69
+5 69

-12 69

-5 69
VCORE 69

S

Save Changes 73
SDRAM CAS Latency 57

W

Wake On LAN 67, 68

98 ASUS A7M266-D User’s Manual