Summary of the content on the page No. 1
®
A7A266
DDR SDRAM
266MHz FSB AGP Pro/4X
Socket A Motherboard
USER’S MANUAL
Summary of the content on the page No. 2
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, EI- THER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE IMPLIED W
Summary of the content on the page No. 3
ASUS CONTACT INFORMATION ASUSTeK COMPUTER INC. (Asia-Pacific) Marketing Address: 150 Li-Te Road, Peitou, Taipei, Taiwan 112 Telephone: +886-2-2894-3447 Fax: +886-2-2894-3449 Email: info@asus.com.tw Technical Support MB/Others (Tel): +886-2-2890-7121 (English) Notebook (Tel): +886-2-2890-7122 (English) Desktop/Server (Tel):+886-2-2890-7123 (English) Fax: +886-2-2893-7775 Email: tsd@asus.com.tw WWW: www.asus.com.tw FTP: ftp.asus.com.tw/pub/ASUS ASUS COMPUTER INTERNATIONAL (America) Marketing Addre
Summary of the content on the page No. 4
CONTENTS 1. INTRODUCTION 7 1.1 How This Manual Is Organized ................................................... 7 1.2 Item Checklist .............................................................................. 7 2. FEATURES 8 2.1 The ASUS A7A266 ...................................................................... 8 2.1.1 Specifications ..................................................................... 8 2.1.2 Optional Components .........................................................
Summary of the content on the page No. 5
CONTENTS 4.2.2 Legend Bar ....................................................................... 52 4.3 Main Menu ................................................................................. 54 4.3.1 Primary & Secondary Master/Slave ................................. 55 4.3.2 Keyboard Features ............................................................ 58 4.4 Advanced Menu ......................................................................... 60 4.4.1 Chip Configuration ................
Summary of the content on the page No. 6
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 provid
Summary of the content on the page No. 7
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
Summary of the content on the page No. 8
2. FEATURES Specifications 2. FEATURES 2.1 The ASUS A7A266 The ASUS A7A266 motherboard is carefully designed for the value-conscious PC user who wants advanced features processed by the fastest processors. 2.1.1 Specifications ® • AMD Athlon™/ Duron™ Processor Support: Supports AMD’s new socket- A Palomino™ / Thunderbird™ processor cores. • North Bridge System Chipset: ALi M1647™ chipset with AGP/PCI/Memory controller supports a 133/100MHz Front Side Bus (FSB), supports DDR SDRAM DIMM, complie
Summary of the content on the page No. 9
2. FEATURES • USB: Supports up to six USB ports, two on the back panel and four midboard, for more peripheral connectivity options. • One Touch Management: Supports an optional ASUS iPanel, an easy to access box with system information LED display, front I/O ports, and space reserved for a hard disk drive. With an ASUS iPanel, you can monitor your computer system’s vital components. • PC Health Monitoring: Provides an easy way to examine and manage system status information, such as CPU and sys
Summary of the content on the page No. 10
2. FEATURES Performance 2. FEATURES 2.1.3 Special Features • ACPI Ready: Advanced Configuration Power Interface (ACPI) provides more Energy Saving Features for operating systems that support OS Direct Power Management (OSPM) functionality. With these features implemented in the OS, PCs can be ready around the clock, yet satisfy all the energy saving standards. To fully utilize the benefits of ACPI, an ACPI-supported OS, such as Windows 98/2000/Millenium must be used. • Easy Installation: Incor
Summary of the content on the page No. 11
2. FEATURES 2.1.5 Intelligence • Dual Function Power Button: Pushing the power button for less than 4 sec- onds when the system is in the working state places the system into one of two states: sleep mode or soft-off mode, depending on the BIOS or OS setting (see PWR Button < 4 Secs in 4.5 Power Menu). When the power button is pressed for more than 4 seconds, the system enters the soft-off mode regardless of the BIOS setting. • Fan Status Monitoring and Alarm: To prevent system overheat and sys
Summary of the content on the page No. 12
2. FEATURES Motherboard Parts 2. FEATURES 2.2 Motherboard Components See opposite page for locations. Location Processor Support Socket A (462) for AMD Athlon/Duron CPUs ......................... 2 (NOTE: A CPU thermal sensor is integrated on the motherboard, located near the center of the CPU heat source, just below the CPU socket) DIP Switches ............................................................................ 8 Chipsets ALi M1647 system controller ..................................
Summary of the content on the page No. 13
2. FEATURES 2.2.1 Component Locations 1 2 3 4 5 6 7 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 9121110 9 8 ASUS A7A266 User’s Manual 13 2. FEATURES Motherboard Parts
Summary of the content on the page No. 14
Socket 462 3. H/W SETUP Motherboard Layout 3. HARDWARE SETUP 3.1 Motherboard Layout 24.5cm (9.64in) PS/2 T: Mouse CPU_FAN B: Keyboard USB1 USB2 COM1 LED JTPWR COM2 Line Out ALi PWR_FAN M1647 Line In Chipset Mic In 0 1 2 3 4 5 0 1 2 3 MIC2 AUDIO_PANEL AUX CD1 Accelerated Graphics Port (AGP Pro) CR2032 3V Lithium Cell CMOS Power MODEM PCI 1 CLRTC BCS1 A7A266 FLOPPY BCS2 Flash EEPROM PCI 2 ALi (Programable BIOS) M1535D+ Chipset JEN WOR PCI 3 VID PCI 4 WOL_CON IR CHASIS PCI 5 AFPANEL SMB USB2
Summary of the content on the page No. 15
3. HARDWARE SETUP 3.2 Layout Contents Motherboard Settings 1) JEN p. 19 JumperFree Mode (JumperFree/Jumper Mode) 2) VID p. 20 Voltage Regulator Output Setting (Enable/Disable) 3) DSW Switch 5 p. 20 DDR / SDR Memory Selection (Off/On) 4) DSW Switches 1–4 p. 21 CPU External Frequency Setting 5) DSW Switches 5-10 p. 22 Manual CPU Ratio Setting 6) BCS1, BCS2 p. 23 Bass Center Setting Expansion Slots/Sockets 1) System Memory p. 24 System Memory Support 2) DDR1/DDR2 p. 24 DDR DIMM Memory Module Suppor
Summary of the content on the page No. 16
3. H/W SETUP Layout Contents 3. HARDWARE SETUP 16) SMB p. 40 SMBus Connector (5-1 pin) 17) IrDA/AFPANEL p. 41 ASUS IrDA/iPanel Connector (24-1 pin) 18) AAPANEL p. 41 ASUS iPanel Audio Connector (12-1 pin) 19) CD1, AUX, MODEM p. 42 Internal Audio Connector (4 pin) 20) MIC2 p. 42 Internal Microphone Connector (3 pin) 21) PLED (PANEL) p. 43 System Power LED Lead (3 pin) 22) KEYLOCK (PANEL) p. 43 Keyboard Lock Switch Lead (2 pin) 23) SPEAKER (PANEL) p. 43 System Warning Speaker Connector (4 pin) 24)
Summary of the content on the page No. 17
3. HARDWARE SETUP 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 ASUS A7A266 User’s Manual 17 3. H/W SETUP Getting Started
Summary of the content on the page No. 18
3. H/W SETUP Motherboard Settings 3. HARDWARE SETUP 3.4 Motherboard Settings This section explains in detail how to change your motherboard’s function settings through the use of switches and/or jumpers. WARNING! Computer motherboards and expansion cards contain very delicate Integrated Circuit (IC) chips. To protect them against damage from static electric- ity, you should follow some precautions whenever you work on your computer. 1. Unplug your computer when working on the inside. 2. Use a gr
Summary of the content on the page No. 19
ON 2 34 7 8 9 10 1 1 5 6 ON 7 8 9 10 1 1 2 34 5 6 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. 1-10: Frequency Multiples DSW A7A266 OFF ON A7A266 DIP Switch 1) JumperFree™ Mode (JEN) This jumper allows you to enable or disable the JumperFree™ mode. The JumperFree™ mode allows processor se
Summary of the content on the page No. 20
ON 12 34 5 67 89 10 ON 12 34 5 67 89 10 3. H/W SETUP Motherboard Settings 3. HARDWARE SETUP 2) Voltage Regulator Output Setting (VID) This jumper allows you to manually adjust the CPU core voltage. It is better to use the CPU Default for the CPU core voltage. CPU Default means the Vcore is generated according to the CPU VID configuration. Disabling the Voltage regulator output allows higher voltage settings to be made; however care must be exercised not to damage the CPU. VID Enable Disable (
