®
A7A266-E
DDR RAM / SDRAM
266MHz FSB AGP Pro/4X
Socket A Motherboard
USER’S MANUAL
ASUS CONTACT INFORMATION
ASUSTeK COMPUTER INC. (Asia-Pacific)
Marketing
Address:
Telephone:
Fax:
150 Li-Te Road, Peitou, Taipei, Taiwan 112
+886-2-2894-3447
+886-2-2894-3449
Email:
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:
+886-2-2890-7698
Email:
WWW:
FTP:
ftp.asus.com.tw/pub/ASUS
ASUS COMPUTER INTERNATIONAL (America)
Marketing
Address:
6737 Mowry Avenue, Mowry Business Center, Building 2
Newark, CA 94560, USA
Fax:
Email:
+1-510-608-4555
Technical Support
Fax:
+1-510-608-4555
ftp.asus.com/Pub/ASUS
Email:
WWW:
FTP:
ASUS COMPUTER GmbH (Europe)
Marketing
Address:
Fax:
Harkortstr. 25, 40880 Ratingen, BRD, Germany
+49-2102-442066
Email:
[email protected] (for marketing requests only)
Technical Support
Hotline:
Fax:
Support (Email):
WWW:
MB/Others: +49-2102-9599-0 Notebook: +49-2102-9599-10
+49-2102-9599-11
FTP:
ftp.asuscom.de/pub/ASUSCOM
ASUS A7A266-E 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 A7A266-E .................................................................. 8
2.1.1 Specifications ..................................................................... 8
2.1.2 Optional Components ......................................................... 9
2.1.3 Special Features................................................................ 10
2.1.4 Performance Features ....................................................... 10
2.1.5 Intelligence ....................................................................... 11
2.2 Motherboard Components.......................................................... 12
2.2.1 Component Locations....................................................... 13
3. HARDWARE SETUP
14
3.1 Motherboard Layout .................................................................. 14
3.2 Layout Contents ......................................................................... 15
3.3 Getting Started ........................................................................... 16
3.4 Motherboard Settings ................................................................. 16
3.5 System Memory ......................................................................... 22
3.5.1 DDR DIMM Support........................................................ 22
3.5.2 SDR DIMM Support ........................................................ 23
3.5.3 General DIMM Memo...................................................... 23
3.5.4 Memory Installation ......................................................... 24
3.6 Central Processing Unit (CPU) .................................................. 25
3.7 Expansion Cards ........................................................................ 26
3.7.1 Expansion Card Installation Procedure ............................ 26
3.7.2 Assigning IRQs for Expansion Cards .............................. 27
3.7.3 Accelerated Graphics Port Pro (AGP Pro) ....................... 28
3.7.4 Audio Modem Riser (AMR) Slot ..................................... 28
3.8 Connectors ................................................................................ 29
3.8.1 External Connectors ......................................................... 29
3.9 Starting Up the First Time.......................................................... 41
4. BIOS SETUP
43
4.1 Managing and Updating Your BIOS .......................................... 43
4.1.1 Upon First Use of the Computer System.......................... 43
4.1.2 Updating BIOS Procedures .............................................. 44
4.2 BIOS Setup Program.................................................................. 47
4
ASUS A7A266-E User’s Manual
CONTENTS
4.2.1 BIOS Menu Bar ................................................................ 48
4.2.2 Legend Bar ....................................................................... 48
4.3 Main Menu ................................................................................. 50
4.3.1 Primary & Secondary Master/Slave ................................. 51
4.3.2 Keyboard Features............................................................ 54
4.4 Advanced Menu ......................................................................... 56
4.4.1 Chip Configuration ........................................................... 59
4.4.2 I/O Device Configuration ................................................. 61
4.4.3 PCI Configuration ............................................................ 63
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 A7A266-E Motherboard Support CD ........................................ 76
6. SOFTWARE REFERENCE
77
6.1 ASUS PC Probe ......................................................................... 77
6.2 CyberLink PowerPlayer SE ....................................................... 83
6.3 CyberLink VideoLive Mail ........................................................ 83
6.4 ASUS Update ............................................................................. 85
6.5 Multi-Channel Audio Feature Setup........................................... 86
7. APPENDIX
7.1 Glossary ..................................................................................... 89
INDEX 93
89
ASUS A7A266-E 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 installa-
tion. 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 interfer-
ence 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 A7A266-E User’s Manual
1. INTRODUCTION
1.1 How This Manual Is Organized
This manual is divided into the following sections:
1. INTRODUCTION
2. FEATURES
3. HARDWARE SETUP
4. BIOS SETUP
Manual information and checklist
Production information and specifications
Instructions on setting up the motherboard.
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.
Optional Items
ASUS CIDB chassis intrusion detec-
Package Contents
(1) ASUS Motherboard
tion module
(1) 40-pin 80-conductor ribbon
cable for internal UltraDMA/
100 / UltraDMA/66 (also
compatible with UltraDMA/33
IDE drives/devices)
ASUS IrDA-compliant infrared
module
ASUS MR-I Modem Riser Card
(1) Ribbon cable for internal
UltraDMA/33 IDE drives
(1) Ribbon cable for one 5.25” and
two 3.5” floppy disk drives
(2) 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
ASUS A7A266-E User’s Manual
7
2. FEATURES
2.1 The ASUS A7A266-E
The ASUS A7A266-E motherboard is carefully designed for the value-conscious
PC user who wants advanced features processed by the fastest processors.
2.1.1 Core 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, complies with AGP 2.0 specifications for 4X, 2X and 1X AGP modes
and PCI 2.2. bus interface. It is optimized to deliver enhanced AMD Athlon™
processor system performance.
•
•
South Bridge System PCIset: ALi M1535D+™ PCIset with PCI Super-I/O In-
tegrated Peripheral Controller (PSIPC) with support for UltraDMA/100, which
allows burst mode data transfer rates of up to 100MB/sec; AC97 audio; USB
controller with root hub and four function ports.
PC2100 / PC1600 DDR and PC133 SDR SDRAM Support: Equipped with
two Double Data Rate Dual Inline Memory Module (DDR DIMM) sockets to
support up to 2GB of DDR SDRAM and three SDR DIMM sockets to support
up to 3GB of SDR SDRAM. DDR SDRAM is the newest memory standard with
the highest bandwidth and lowest latency currently available and dramatically
improves the memory system’s ability to service, among others, high multimedia
requirements. (Caution: Do not use DDR & SDRAM modules simultaneously.)
•
JumperFree™ Mode: Gives processor settings and easy overclocking of
frequency and Vcore voltage all through BIOS setup when JumperFree™ mode
is enabled. Easy-to-use DIP switches instead of jumpers are included to allow
manual adjustment of the processor’s external frequency. CPU external (FSB)
frequency settings may be set in 1MHz-increments or reduction.
•
Super Multi-I/O: Provides two high-speed UART compatible serial ports and
one parallel port with EPP and ECP capabilities.
•
High-Speed Data Transfer Interface: UltraDMA/133 increases the data trans-
fer rate to 133MB/s. UltraDMA/133 is backward compatible with both DMA/
66 and DMA/33 with existing DMA devices and systems. (UltraDMA133/100/
66 requires a 40-pin 80-conductor cable to be enabled.).
•
•
Smart BIOS: 2Mb firmware provides Vcore and CPU/SDRAM frequency ad-
justments, boot block write protection, and HD/SCSI/MO/ZIP/CD/Floppy boot
selection.
One Touch Management: Supports an optionalASUS 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.
ASUS A7A266-E User’s Manual
8
2. FEATURES
2.1.2 Connections
•
•
CPU socket: Socket A (462) for AMD processors.
PCI/AMR Expansion Slots: Provides five 32-bit PCI (Rev. 2.2) expansion
slots, which can support Bus Master PCI cards, such as SCSI or LAN cards (PCI
supports up to 133MB/s maximum throughput), and one Audio Modem Riser
(AMR) slot (shared), which supports a very affordable audio and/or modem
riser card.
•
•
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. The slot is keyed to
support only the latest 1.5 voltAGP cards: i.e.:ASUS V3800 and newer models.
IDE connectors: Dual-channel bus master IDE connectors support up to four
Ultra DMA133/100/66, PIO Modes 3 & 4 IDE devices. Both the primary (blue)
and secondary (black) connectors are slotted to prevent incorrect insertion of the
IDE ribbon cable.
•
•
Floppy disk connector: Supports the floppy disk drive ribbon cable. One side
of the connector is slotted to prevent incorrect insertion of the floppy disk cable.
Wake-On-LAN: Supports Wake-On-LAN activity through an optional ASUS
PCI-L101 10 /100 Fast Ethernet PCI card.
•
•
Wake-On-Ring: Supports Wake-On-Ring activity through a PCI modem card.
USB: Supports up to six USB ports, two on the back panel and four midboard,
for more peripheral connectivity options including PDAs, scanners and more.
•
•
Serial ports: Two 9-pin COM1/COM2 ports are for pointing devices or other
serial devices.
IrDA: Integrated IR supports a remote control package for wireless interfacing
with external peripherals, personal gadgets, or an optional remote controller.
•
•
•
•
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.
Wake-On-LAN Connector: Supports Wake-On-LAN activity through an
optional PCI Fast Ethernet card.
•
•
Wake-On-Ring Connector: Supports Wake-On-Ring activity through a PCI
modem card that supports a Wake-On-Ring connector.
USB: Supports up to six USB ports, two on the back panel and four midboard,
for more peripheral connectivity options.
•
•
Onboard LED: Signals AC power is okay.
ATX power connector. Supplies the MB with ATX 12V power. The power
supply must have at least 1A on the +5V standby lead (+5VSB).
ASUS A7A266-E User’s Manual
9
2. FEATURES
2.1.3 Special Features
•
Easy Installation: Incorporates BIOS that supports autodetection of hard disk
drives, PS/2 mouse, and Plug and Play devices to make the setup of hard disk
drives, expansion cards, and other devices virtually automatic.
•
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.
•
•
•
•
Desktop Management Interface (DMI): Supports DMI through BIOS, which
allows hardware to communicate within a standard protocol creating a higher
level of compatibility. (Requires DMI-enabled components.)
Color-coded Connectors: To enhance user accessibility to system components
and to meet PC 99 compliancy, major connectors in this motherboard are color-
coded.
Remote Ring On (requires modem): This allows a computer to be turned on
remotely through an internal or external modem. With this benefit on-hand, users
can access vital information from their computers from anywhere in the world!
New Compliancy: Both the BIOS and hardware levels of this motherboard meet
the stringent requirements for PC 99 certification. The new PC 99 requirements
for systems and components are based on the following high-level goals: Sup-
port for Plug and Play compatibility and power management for configuring
and managing all system components, and 32-bit device drivers and installation
procedures for Windows95/98/NT . Color-coded connectors and descriptive icons
make identification easy as required by PC 99.
2.1.4 Performance and Intelligence
•
DDR SDRAM Optimized Performance: This motherboard supports a new gen-
eration memory, Double Data Rate (DDR) Dynamic Random Access Memory
(SDRAM), which is compatible to the industry standard 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 133MHz DDR SDRAM and
1.6GB/s for 100MHz DDR SDRAM.
•
•
PC Health Monitoring: Provides an easy way to examine and manage system
status information, such as CPU and systerm voltages, temperatures, and fan
speeds/status through the onboard hardware, ASUS ASIC and ASUS PC Probe:
Voltage Monitoring and Alert: System voltage levels are monitored to ensure
stable current to critical motherboard components. Voltage specifications are
more critical for future processors, so monitoring is necessary to ensure proper
system configuration and management.
ASUS A7A266-E User’s Manual
10
2. FEATURES
Enhanced ACPI & Anti-Boot Virus Protection: Programmable BIOS (Flash
EEPROM), offering enhanced ACPI for Windows 982000/Millenium compat-
ibility, built-in firmware-based virus protection, and autodetection of most de-
vices for virtually automatic setup.
•
•
Dual Function Power Button: Pushing the power button for less than 4 sec-
onds when the system is in the working state places the system into one of two
states: sleep mode or soft-off mode, depending on the BIOS or OS setting (see
PWR Button < 4 Secs in 4.5 Power Menu). When the power button is pressed
for more than 4 seconds, the system enters the soft-off mode regardless of the
BIOS setting.
•
Fan Status Monitoring and Alarm: To prevent system overheat and system
damage, the CPU, power supply, and system fans can be monitored for RPM
and failure. All fans are set for its normal RPM range and alarm thresholds.
•
SMBus: The System Management Bus interface conveys commands and
information between SMBus devices.
•
Message LED (requires ACPI OS support): Turbo LEDs now act as informa-
tion providers. Through the way a particular LED illuminates, the user can de-
termine if there are messages waiting in the mailbox. Asimple glimpse provides
useful information to the user.
•
System Resources Alert: Today’s operating systems such as Windows 98/
Millenium and Windows NT/2000, require much more memory and hard drive
space to present enormous user interfaces and run large applications. The sys-
tem resource monitor will warn the user before the system resources are used up
to prevent possible application crashes. Suggestions will give the user informa-
tion on managing their limited resources more efficiently.
•
•
Concurrent PCI: Concurrent PCI allows multiple PCI transfers from PCI mas-
ter busses to the memory and processor.
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.
2.1.2 Optional Components
•
Onboard Audio: C-Media Audio Chip CMI8738 supporting the latest PCI 6
channel and HRTF 3D Audio sound circuitry.
ASUS A7A266-E User’s Manual
11
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 ................................................... 1
ALi M1535D+ PCIset ............................................................ 15
2Mbit Programmable Flash EEPROM ................................... 12
Main Memory Maximum 2GB support
3 SDR DIMM Sockets (maximum 3GB) ................................. 4
2 DDR DIMM Sockets (maximum 2GB) ................................ 3
PC2100 / PC1600 DDR and PC133 SDR memory support
Expansion Slots 5 PCI Slots .............................................................................. 19
1 Accelerated Graphics Port (AGP) Pro Slot ......................... 20
1 Audio Modem Riser (AMR) Slot ........................ (Shared) 17
System I/O 1 Floppy Disk Drive Connector ............................................. 13
2 IDE Connectors (UltraDMA133/100/66 Support) ................ 7
1 Parallel Port Connector ............................................. (Top) 24
1 Serial COM1 Port Connector .............................. (Bottom) 25
1 Serial COM2 Port Connector .............................. (Bottom) 23
USB Connectors (Port 0 & Port 1) ........................................ 26
USB Header (Port 2,3 & Port 4,5).......................................... 14
1 PS/2 Mouse Connector ............................................. (Top) 27
1 PS/2 Keyboard Connector ................................... (Bottom) 27
1 ASUS IrDA/iPanel Connector ................................. (Right) 9
1 ASUS IR Connector .................................................. (Left) 9
1 ASUS iPanel Audio Connector............................................ 21
Audio PCI Audio Chipset (optional) ................................................. 18
1 Game/MIDI Connector (on audio model only) ......... (Top) 22
1 Line Out Connector (on audio model only) ........ (Bottom) 22
1 Line In Connector (on audio model only) ........... (Bottom) 22
1 Microphone Connector (on audio model only) ... (Bottom) 22
Network Features Wake-On-LAN Connector...................................................... 16
Wake-On-Ring Connector ...................................................... 11
Hardware Monitoring ASUS ASIC ............................................................................ 10
3 Fan Power and Speed Monitoring Connectors
Power ATX Power Supply Connector ................................................. 5
Special Feature Onboard LED ........................................................................... 6
Form Factor ATX
ASUS A7A266-E User’s Manual
12
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 131211 109 8
ASUS A7A266-E User’s Manual
13
3. HARDWARE SETUP
3.1 Motherboard Layout
24.5cm (9.64in)
PS/2
T: Mouse
B: Keyboard
CPU_FAN
USB1
USB2
1
1
COM1
LED
JTPWR
COM2
Line
Out
ALi
M1647
Chipset
PWR_FAN
Line
In
Mic
In
0
1
2
3
4
5
0
1
2
3
MIC2
AUX
AUDIO_PANEL
CD1
JP10
Accelerated Graphics Port (AGP Pro)
CR2032 3V
Lithium Cell
CMOS Power
PCI 1
CLRTC
BCS1
BCS2
A7A266-E
FLOPPY
MODEM
Flash EEPROM
(Programable BIOS)
PCI 2
ALi
M1535D+
Chipset
JEN
PCI 3
PCI 4
PCI 5
VID
WOR
WOL_CON
IR
CHA
AFPANEL
PANEL
SMB
USB2
USB1
Audio Modem Riser
(AMR)
IDELED
CHA_FAN
Grayed components are available only on certain models at the time of purchase.
ASUS A7A266-E User’s Manual
14
3. HARDWARE SETUP
3.2 Layout Contents
Motherboard Settings
1) JEN
2) VID
p. 17 JumperFree Mode (JumperFree/Jumper Mode)
p. 18 Voltage Regulator Output Setting (Enable/Disable)
p. 18 DDR Voltage Selection (2.5 / 2.6)
p. 19 CPU External Frequency Setting
p. 20 Manual CPU Ratio Setting
3) JP10
4) DSW Switches 1–4
5) DSW Switches 6-10
6) BCS1, BCS2
Expansion Slots/Sockets
1) System Memory
2) DDR1/DDR2
3) DIMM1/2/3
p. 21 Bass Center Setting
p. 22 System Memory Support
p. 22 DDR DIMM Memory Module Support
p. 23 SDR DIMM Memory Module Support
4) Socket 462 (Socket A) p. 25 CPU Support
5) PCI1/2/3/4/5
6) AGP PRO
7) AMR
p. 26 32-bit PCI Bus Expansion Slots
p. 28 Accelerated Graphics Port (AGP) Pro
p. 28 Audio Modem Riser (AMR) Slot
Connectors
1) PS2KBMS
2) PS2KBMS
3) USB
4) COM1/COM2
5) PRINTER
6) GAME_AUDIO
7) GAME_AUDIO
8) FLOPPY
p. 29 PS/2 Mouse Porv #onnector (6 pin female)
p. 29 PS/2 Keyboard Port Connector (6 pin female)
p. 30 Universal Serial Bus Connectors 0 & 1 (Two 4-pin female)
p. 30 Serial Port Connector (9-pin male)
p. 30 Parallel Port Connector (25-pin female)
p. 31 Game/MIDI Connector (15-pin female) (optional)
p. 31 Audio Port Connectors (Three 1/8”) (optional)
p. 31 Floppy Disk Drive Connector (34 pin)
9) PRIM./SECOND. IDE p. 32 IDE Connectors (Two 40-1 pin
10) IDELED
11) CHASSIS
12) WOL_CON
13) WOR
p. 33 IDE Activity LED (2 pin)
p. 33 Chassis Intrusion Lead (4-1 pin)
p. 34 Wake-On-LAN Connector (3 pin)
p. 34 Wake-On-Ring Connector (2 pin)
14) CHA, PWR, CPU_FAN p. 35 Chassis, Power Supply, CPU Fan Connectors (3 pin)
15) USB1/USB2
16) SMB
p. 36 USB Headers (Two 10-1 pin)
p. 36 SMBus Connector (5-1 pin)
17) IrDA/AFPANEL
18) AAPANEL
p. 37 ASUS IrDA/iPanel Connector (24-1 pin)
p. 37 ASUS iPanel Audio Connector (12-1 pin)
19) CD1, AUX, MODEM p. 38 Internal Audio Connector (4 pin)
20) MIC2
21) ATXPWR
22) JTPWR
p. 38 Internal Microphone Connector (3 pin)
p. 39 ATX Power Supply Connector (20 pin)
p. 39 Thermal Sensor Connector (2 pin)
p. 40 System Power LED Lead (3 pin)
23) PLED (PANEL
)
24) KEYLOCK (PANEL) p. 40 Keyboard Lock Switch Lead (2 pin)
25) SPEAKER (PANEL)
26) MLED (PANEL)
27) SMI (PANEL)
28) PWRBTN (PANEL)
29) RESET (PANEL)
p. 40 System Warning Speaker Connector (4 pin)
p. 40 System Message LED (2 pin)
p. 40 System Management Interrupt Lead (2 pin)
p. 40 ATX / Soft-Off Switch Lead (2 pin)
p. 40 Reset Switch Lead (2 pin)
ASUS A7A266-E User’s Manual
15
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
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 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.
LED
ON
OFF
Standby
Power
Powered
Off
A7A266-E
A7A266-E Onboard LED
ASUS A7A266-E User’s Manual
16
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-E
OFF ON
A7A266-E 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). The default setting is for JumperFree mode: all
DSWs come set to the OFF position and the JEN jumpers are set to [2-3].
Setting
JumperFree
Jumper Mode
JEN
[2-3] (default)
[1-2]
JEN
1 2
2 3
Jumper Mode
Jumper Free (Default)
DSW
A7A266-E
OFF (Default)
A7A266-E Jumper Mode Setting
ASUS A7A266-E User’s Manual
17
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
2 3
(Default)
A7A266-E
1 2
A7A266-E VID Selection
3) DDR Voltage Setting (JP10)
This option sets the voltage for the the DDR memory. It is recommended to use
the default setting for normal operation, as the higher voltage setting may strain
components.
JP10
A7A266-E
2 3
1 2
2.5V
(Default)
2.6V
A7A266-E DDR Voltage Setting
ASUS A7A266-E User’s Manual
18
3. HARDWARE SETUP
4) CPU External Frequency Setting (DSW Switches 1–4)
This option tells the clock generator which frequency to send to the CPU,
SDRAM, and 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, JEN must be set to Jumper Mode, [1-2].
(See 1, JumperFree™ Mode (JEN) in 3, HARDWARE SETUP.)
2. In JumperFree mode, all dip switches (DSW-1–DSW-4) must be set to OFF.
3. When JumperFree mode is enabled, use BIOS setup in place of these switches.
(Set Operating Frequency Setting to User Define under 4.4Advanced Menu
in BIOS Setup so you can set the CPU Frequency.)
DSW
CPU→
100MHz 100MHz 120MHz 133MHz
100MHz 133MHz 120MHz 133MHz
SDRAM→
A7A266-E
A7A266-E CPU External
Frequency Selection
CPU→
90MHz 101MHz 126MHz
90MHz 101MHz 126MHz
SDRAM→
WARNING! Frequencies other than recommended CPU bus frequencies are not
guaranteed to be stable. Overclocking your processor is not advised. It may result
in a slower speed and premature wearing of the processor.
ASUS A7A266-E User’s Manual
19
3. HARDWARE SETUP
5) Manual CPU Ratio Settings (DSW Switches 6-9)
Set DSW switches (6-9) to use the clock multiplier to coordinate the ratio of bus
speeds with CPU settings. Set the DSW switches according to the internal speed
of your processor and the bus frequency (133/100MHz).
IMPORTANT:
1. To use this feature, JEN must be set to Jumper Mode, [1-2].
(See 1, JumperFree™ Mode (JEN) in 3, HARDWARE SETUP.)
2. Ensure the DSWsettings are set to enable manual switch adjustments:
DSW switch 10 is OFF to disable the manual CPU ratio settings.
DSW switch 10 is ON, for all manual CPU ratio settings.
DSW
A7A266-E
OFF
ON
Disable
settings
(Default)
Enable
settings
A7A266-E CPU Ratio Default
3. Set DSW switches 6 through 9 as follows according to the desired multiplier:
DSW
5.0x
5.5x
6.0x
6.5x
7.0x
7.5x
A7A266-E
9.0x
9.5x
10.0x
10.5x
8.0x
8.5x
A7A266-E CPU External
Clock (BUS) Frequency
Selection
11.0x
11.5x
12.0x
>=12.5x
ASUS A7A266-E User’s Manual
20
3. HARDWARE SETUP
Multiplier Table
12.5x and up
12.0x
11.5x
11.0x
10.5x
10.0x
9.5x
9.0x
8.5x
8.0x
7.5x
6
7
8
9
[OFF]
[ON]
[OFF]
[ON]
[OFF]
[ON]
[OFF]
[ON]
[OFF]
[ON]
[OFF]
[ON]
[OFF]
[ON]
[OFF]
[ON]
[OFF]
[OFF]
[ON]
[ON]
[OFF]
[OFF]
[ON]
[ON]
[OFF]
[OFF]
[ON]
[ON]
[OFF]
[OFF]
[ON]
[ON]
[ON]
[ON]
[ON]
[ON]
[OFF]
[OFF]
[OFF]
[OFF]
[ON]
[ON]
[ON]
[ON]
[OFF]
[OFF]
[OFF]
[OFF]
[ON]
[ON]
[ON]
[ON]
[OFF]
[OFF]
[OFF]
[OFF]
[OFF]
[OFF]
[OFF]
[OFF]
[ON]
[ON]
[ON]
[ON]
7.0x
6.5x
6.0x
5.5x
5.0x
6) Bass Center Setting (BCS1, BCS2)
(NOTE: Only available on PCB 1.10 & later versions)
Use these jumpers in conjunction with the C-Media PCI Audio Driver 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 to reroute signals among the internal leads to the
female Line-In, Line-Out, Mic sockets. Make sure a test is made using the
C-MediaAudio Driver software setup available on the Support CD. These jump-
ers effectively swap the audio channels for bass and center. NOTE: the default
setting is compatible with Creative 6-Channel audio speaker system.
2 3
1 2
A7A266-E
BCS1
BCS2
(BASS/CENTER)
(CENTER/BASS)
(Default)
A7A266-E Jumper Mode Setting
ASUS A7A266-E User’s Manual
21
3. HARDWARE SETUP
3.5 System Memory
This motherboard features two Double Data Rate (DDR) Dual Inline Memory Mod-
ule sockets and three Single Data Rate (SDR) Dual Inline Memory Module sockets.
3.5.1 DDR DIMM Support
The two DDR DIMM sockets support 2.5Volt (power level) unbuffered Double Data
Rate Synchronous Dynamic Random Access Memory (DDR SDRAM) of 64MB,
128MB, 256MB, 512MB, and 1GB to form a memory size between 64MB to 2GB.
One side (with memory chips) of the DIMM takes up one row on the motherboard.
DDR DIMMs support non-ECC modules that are available in unbuffered (typically
used in PCs) versions.
NOTE: The DDR memory bus runs at the same frequency as the CPU front side bus.
Install memory in any combination as follows:
DIMM Location
184-pin DDR DIMM
Total Memory
Socket 1 (Rows 0&1)
Socket 2 (Rows 2&3)
64MB, 128MB, 256MB, 512MB, 1GB x1
64MB, 128MB, 256MB, 512MB, 1GB x1
Total System Memory (Max 2GB)
=
The 184-pin DIMM must be a 2.5V unbuffered DDR SDRAM. Each DDR DIMM
has a single notch slightly to the right of center:
104 Pins
80 Pins
A7A266-E
A7A266-E 184-Pin DDR DIMM Sockets
IMPORTANT! DO NOT mix DDR and SDR SDRAMs. Mixing DDR and SDR
SDRAMs may damage the DDR modules!
WARNING! Be sure that the DIMMs you use can handle the specified SDRAM
MHz or else bootup will not be possible.
ASUS A7A266-E User’s Manual
22
3. HARDWARE SETUP
3.5.2 SDR DIMM Support
The three SDR DIMM sockets support 3.3Volt (power level) unbuffered Single Data
Rate Synchronous Dynamic Random Access Memory (SDR SDRAM) of 64MB,
128MB, 256MB, 512MB, and 1GB to form a memory size between 64MB to 3GB.
One side (with memory chips) of the DIMM takes up one row on the motherboard.
SDR DIMMs supports non-ECC (used in desktops/laptops) and are available in
unbuffered (typically used in PCs) versions.
Install memory in any combination as follows:
DIMM Location
168-pin SDR DIMM
Total Memory
Socket 1 (Rows 0&1)
Socket 2 (Rows 2&3)
Socket 3 (Rows 4&5)
64MB, 128MB, 256MB, 512MB, 1GB x1
64MB, 128MB, 256MB, 512MB, 1GB x1
64MB, 128MB, 256MB, 512MB, 1GB x1
Total System Memory (Max 3GB)
=
The 168-pin DIMM must be a 3.3V unbuffered SDR SDRAM. Look for two notches
on each SDR DIMM:
88 Pins
A7A266-E
60 Pins
20 Pins
A7A266-E 168-Pin DIMM Sockets
Lock
168-Pin DIMM Notch Key Definitions (3.3V)
Voltage Key Position
Reserved
DRAM Key Position
RFU
Unbuffered
Buffered
5.0V
3.3V
ASUS A7A266-E User’s Manual
23
3. HARDWARE SETUP
3.5.3 Memory Installation
WARNING! 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 (see 3.3 Hardware Setup
Procedure for more information).
Follow these steps to install 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 match the
breaks on the socket.
3. Firmly insert the DIMM into the socket until the retaining clips snap back in
place and the DIMM is properly seated.
Unlocked Retaining Clip
Locked Retaining Clip
Follow these steps to remove a DIMM.
1. Support the DIMM lightly with your fingers when pressing the retaining
clips. The DIMM might get damaged when it flips out with extra
force.Simultaneously press the retaining clips outward to unlock the DIMM.
2. Remove the DIMM from the socket.
3.5.4 General DIMM Memo
•
•
DIMMs that have more than 18 chips are not supported on this motherboard.
ASUS motherboards support SPD (Serial Presence Detect) DIMMs. This is the
memory of choice for best performance vs. stability.
•
BIOS shows SDRAM memory on bootup screen.
ASUS A7A266-E User’s Manual
24
3. HARDWARE SETUP
3.6 Central Processing Unit (CPU)
The motherboard provides a Socket 462 (A) for CPU installation. A fan and heat-
sink must be attached to the CPU to prevent overheating before turning on the PC.
LEVER
CPU NOTCH
TO INNER
CORNER
LOCK
A7A266-E
CPU NOTCH
AMD™ Athlon
A7A266-E Socket A
1. Locate the Socket 462 and 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 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.
3. Once completely inserted, press the CPU firmly
and close the socket lever until it snaps shut.
4. Place the CPU fan and heatsink on the CPU. The heatsink should entirely cover
the CPU. Carefully attach the heatsink locking brace to the plastic clips on the
socket base. With the added weight of the CPU fan and heatsink locking brace,
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 else damage may occur. When mounting a heatsink
onto your CPU, make sure that exposed CPU capacitors do not touch the
heatsink, or damage may occur!
NOTE! Do not forget to set the correct Bus Frequency and Multiple to avoid
start-up problems (available only on unlocked processors).
ASUS A7A266-E User’s Manual
25
3. HARDWARE SETUP
3.7 Expansion Cards
WARNING! Unplug your power supply when adding or removing expansion
cards or other system components. Failure to do so may cause severe damage to
both your motherboard and expansion cards.
3.7.1 Expansion Card Installation Procedure
1. Read the documentation for your expansion card and make any necessary hard-
ware or software settings for your expansion card, such as jumpers.
2. Remove your computer system’s cover and the bracket plate on the slot you
intend to use. Keep the bracket for possible future use.
3. Carefully align the card’s connectors and press firmly.
4. Secure the card on the slot with the screw you removed above.
5. Replace the computer system’s cover.
6. Set up the BIOS if necessary
(such as IRQ xx Used By ISA: Yes in 4.4.3 PCI Configuration)
7. Install the necessary software drivers for your expansion card.
26
ASUS A7A266-E 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 exclu-
sively 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 moth-
erboard 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 sup-
port “Share IRQ” or that the cards do not need IRQ assignments. Conflicts will
arise between the two PCI groups that will make the system unstable or cards inop-
erable.
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
0
1
Priority
Standard Function
System Timer
Keyboard Controller
1
2
2
N/A
11
12
13
14
15
3
4
5
6
7
Programmable Interrupt
Communications Port (COM2)
Communications Port (COM1)
Sound Card (sometimes LPT2)
Floppy Disk Controller
Printer Port (LPT1)
System CMOS/Real Time Clock
ACPI Mode when used
IRQ Holder for PCI Steering
IRQ Holder for PCI Steering
PS/2 Compatible Mouse Port
Numeric Data Processor
Primary IDE Channel
3*
4*
5*
6
7*
8
9*
10*
11*
12*
13
14*
15*
8
9
10
Secondary IDE Channel
*These IRQs are usually available for PCI devices.
Interrupt Request Table for this Motherboard
INT-A
shared
—
—
—
INT-B
—
shared
—
—
INT-C
—
—
shared
—
INT-D
—
—
—
shared
—
INT-E INT-F
PCI slot 1
PCI slot 2
PCI slot 3
PCI slot 4
—
—
—
—
—
—
—
—
PCI slot 5
—
—
—
—
—
shared
—
AGP Pro slot
Onboard PCI audio
Onboard USB controller
shared
—
—
shared
—
—
—
—
—
—
—
—
—
used
shared
—
ASUS A7A266-E User’s Manual
27
3. HARDWARE SETUP
3.7.3 Accelerated Graphics Port Pro (AGP Pro)
This motherboard provides an Accelerated Graphics Port Pro (AGP Pro) slot to sup-
port AGP/AGP Pro graphics cards, such as an ASUS AGP-V6800DDR/64M.
CAUTION! To avoid damaging yourAGP/AGPPro graphics card, your computer’s
power supply should be unplugged before inserting your graphics card into the slot.
AGP Card without Retention Notch
A7A266-E
TOP VIEW
28-pin bay
20-pin bay
Rib (inside slot)
Rib
A7A266-E 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; removing may cause these cards to shift,
which may cause damage to your card, slot, and motherboard.
Remove 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.
Removing the tab
3.7.4 Audio Modem Riser (AMR) Slot
This connector supports a specially designed audio and/or modem card called anAMR.
It provides an upgrade to audio and/or modem solutions at an incredibly low cost.
IMPORTANT: The AMR slot of this motherboard shares the same expansion slot
as PCI Slot 5. Because of this and its location, the slot can only accept a specially
designed AMR card. The components of a standard AMR card and its bracket
face toward the edge of the motherboard while those of the specially-designed
card face the expansion slots. For availability, see your vendor or dealer.
A7A266-E
A7A266-E Audio Modem Riser (AMR) Slot
ASUS MR-I Card
28
ASUS A7A266-E User’s Manual
3. HARDWARE SETUP
3.8 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 cables 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)
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 A7A266-E User’s Manual
29
3. HARDWARE SETUP
3) Universal Serial Bus Ports 0 & 1 (Black two 4-pin USB)
Two USB ports are available for connecting USB devices. An optional USB
header is available if you need more USB ports.
USB 0
Universal Serial Bus (USB) 1
4) Serial Port Connectors (Teal/Turquoise 9-pin COM1 / COM2)
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
Configuration 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)
30
ASUS A7A266-E User’s Manual
3. HARDWARE SETUP
6) Game/MIDI Connector (Gold 15-pin GAME_AUDIO) (optional)
You may connect game joysticks or game pads to this connector for playing
games. Connect MIDI devices for playing or editing professional audio.
Game/MIDI (15-pin Female)
7) Audio Port Connectors (Three 1/8” GAME_AUDIO) (optional)
Line Out (lime) can be connected to headphones or preferably powered speakers.
Line In (light blue) allows tape players or other audio sources to be recorded by
your computer or played through the Line Out (lime). Mic (pink) allows
microphones to be connected for inputting voice.
Line Out Line In Mic
1/8" Stereo Audio Connectors
8) 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 orientation when
using ribbon cables with pin 5 plugged).
NOTE: Orient the red markings on
the floppy ribbon cable to PIN 1
A7A266-E
PIN 1
A7A266-E Floppy Disk Drive Connector
ASUS A7A266-E User’s Manual
31
3. HARDWARE SETUP
9) Primary (Blue) / Secondary IDE Connectors (Two 40-1pin IDE)
These connectors support the provided UltraDMA133/100 IDE hard disk ribbon
cable. Connect the cable’s blue connector to the motherboard’s primary
(recommended) or secondary IDE connector, and then connect the gray connector
to your UltraDMA133/100 slave device (hard disk drive) and the black connector
to your UltraDMA133/100 master device. It is recommended that non-
UltraDMA133/100 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.
IMPORTANT: UltraDMA133100/66 IDE devices must use a 40-pin 80-
conductor IDE cable for 133MB/s transfer rates.
NOTE: Orient the red markings
(usually zigzag) on the IDE
ribbon cable to PIN 1.
A7A266-E
PIN 1
A7A266-E IDE Connectors
32
ASUS A7A266-E User’s Manual
3. HARDWARE SETUP
10) IDE Activity LED (2-pin IDELED)
This lead supplies power to the cabinet’s IDE activity LED. Read and write
activity by devices connected to the Primary/Secondary IDE and Primary/
Secondary ATA100 connectors will cause the LED to light up.
A7A266-E
IDELED
TIP: If the case-mounted LED does not
light, try reversing the 2-pin plug.
A7A266-E IDE Activity LED
11) 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 intrusion
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.
A7A266-E
1
CHASSIS
A7A266-E Chassis Open Alarm Lead
ASUS A7A266-E User’s Manual
33
3. HARDWARE SETUP
12) Wake-On-LAN Connector (3-pin WOL_CON)
This connector supports a LAN card with a Wake-On-LAN output. The connector
powers up the system when a wakeup packet or signal is received through the
LAN card.
IMPORTANT: This feature requires that the Wake-On-LAN or PCI Modem
feature is enabled (see 4.5.1 Power Up Control) and that your system has an
ATX power supply with at least 720mA +5V standby power.
IMPORTANT: Requires an ATX power
supply with at least 720mA +5 volt
standby power.
WOL_CON
A7A266-E
Ground
PME +5 Volt Standby
A7A266-E Wake-On-LAN Connector
13) Wake-On-Ring Connector (2-pin WOR)
This connector supports internal modem cards with a Wake-On-Ring output.
The connector powers up the system when a ringup packet or signal is received
through the internal modem card. NOTE: For external modems, Wake-On-Ring
is detected through the COM port.
IMPORTANT: This feature requires that the Wake-On-LAN or PCI Modem
feature is enabled (see 4.5.1 Power Up Control) and that your system has an
ATX power supply with at least 720mA +5V standby power.
WOR
A7A266-E
1
2
RI#
Ground
A7A266-E Wake-On-Ring Connector
34
ASUS A7A266-E User’s Manual
3. HARDWARE SETUP
14) Chassis, Power Supply, CPU, and Chipset Fan Connectors
(3-pin CHA_FAN, PWR_FAN, CPU_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
consideration 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 usingASUS PC
Probe (see 6. SOFTWARE REFERENCE).
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
and/or the CPU fan if these pins are incorrectly used. These are not jumpers,
do not place jumper caps over these pins.
CPU_FAN
PWR_FAN
CHA_FAN
GND
+12V
Rotation
A7A266-E
A7A266-E 12-Volt Cooling Fan Power
ASUS A7A266-E User’s Manual
35
3. HARDWARE SETUP
15) USB Headers (10-1 pin USB1, 10-1 pin USB2)
If the USB port connectors on the back panel are inadequate, two USB headers
are available for four additional USB port connectors. Connect each USB header
to an optional 2-port USB connector set and mount the bracket to an open slot
on your chassis.
1
6
5
USB1
USB2
A7A266-E
10
A7A266-E Front Panel USB Headers
16) 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 host and/
or other SMBus devices. SMBus is a specific implementation of an I2C 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
1
A7A266-E
A7A266-E SMBus Connector
36
ASUS A7A266-E User’s Manual
3. HARDWARE SETUP
17) ASUS IrDA / iPanel Connector (24-1 pin AFPANEL)
This connector supports an optional ASUS iPanel, an easy to access drive bay
with front I/O ports, buttons and status LEDs. Alternatively, connect an optional
wireless transmitting and receiving infrared module to the SIR for both wireless
transmitting and remote control functions through one external 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.
AFPANEL
SIR
CIR
Standard Infrared (SIR)
Front View Back View
A7A266-E
IR_CON
+5V
(NC)
IRTX
GND
A7A266-E Front Panel Connectors
IRRX
18) ASUS iPanel Audio Connector (12-1 pin AAPANEL) (on audio model only)
Connect the audio cable from the optional ASUS iPanel to this for front panel
audio control.
AAPANEL
MIC2
AGND
MICPWR
Line in_L
AGND2
Line in_R
Line out_L
AGND3
Line out_R
A7A266-E
A7A266-E Audio Panel Connector
ASUS A7A266-E User’s Manual
37
3. HARDWARE SETUP
19) Internal Audio Connectors (4-pin CD1, AUX, MODEM)
These connectors allow you to receive stereo audio input from such sound sources
as a CD-ROM, TV tuner, or MPEG card. The MODEM connector allows the
onboard audio to interface with a voice modem card with a similar connector
CD1 (White)
Left Audio Channel
AUX (Black)
Ground
Right Audio Channel
Modem-Out
Ground
Ground
A7A266-E
Modem-In
MODEM
A7A266-E Internal Audio Connectors
20) Internal Microphone Connector (3-pin MIC2)
This connector allows you to connect a chassis mounted microphone to the
motherboard instead of having to connect an external microphone to the Line
Out connector on the back panel.
MIC2
1
3
A7A266-E
A7A266-E Internal Microphone Connector
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3. HARDWARE SETUP
21) ATX Power Supply Connector (20-pin block ATXPWR)
This connector connects to anATX power supply. The plug from the power supply
will only insert in one orientation because of the different hole sizes. Find the
proper orientation and push down firmly making sure that the pins are aligned.
IMPORTANT: Make sure that yourATX power supply can supply at least 10mA
on the +5-volt standby lead (+5VSB). You may experience difficulty in powering
ON your system if your 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
Ground
+5.0 Volts
+5.0 Volts
-5.0 Volts
Ground
Ground
+5.0 Volts
Ground
Power Supply On
Ground
Ground
+5.0 Volts
Ground
A7A266-E
-12.0Volts
+3.3 Volts
+3.3Volts
+3.3 Volts
A7A266-E ATX Power Connector
22) Power Supply Thermal Sensor Connector (2-pin block JTPWR)
If you have a power supply with thermal monitoring, connect its thermal sensor
cable to this connector.
JTPWR
Power Supply
Thermal Sensor
A7A266-E
A7A266-E Thermal Sensor Connector
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3. HARDWARE SETUP
The following PANEL illustration is used for items 23-29
*
Requires an ATX power supply.
Speaker
Connector
IDE LED
Power LED
A7A266-E
Message LED
SMI Lead
Reset SW
ATX Power Switch*
A7A266-E System Panel Connectors
23) System Power LED Lead (3-1 pin PLED)
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.
24) Keyboard Lock Switch Lead (2-pin KEYLOCK)
This 2-pin connector connects to the case-mounted key switch to allow
keyboard locking.
25) System Warning Speaker Connector (4-pin SPEAKER)
This 4-pin connector connects to the case-mounted speaker.
26) System Message LED Lead (2-pin MLED)
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.
27) System Management Interrupt Lead (2-pin SMI)
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.
28) ATX Power Switch / Soft-Off Switch Lead (2-pin PWRBTN)
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.
29) 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.
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3. HARDWARE SETUP
3.9 Starting Up the First Time
1. After all connections are made, close the system case cover.
2. Be sure that all switches are off (in some systems, marked with ), and
the power input voltage is set to comply with the standard used in your
country (220V-240V or 110-120V).
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 be-
tween 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.
Award BIOS Beep Codes
Beep
Meaning
One short beep when
displaying logo
No error during POST
Long beeps in an endless loop No DRAM installed or detected
One long beep followed by
three short beeps
Video card not found or video card
memory bad
High frequency beeps when
system is working
CPU overheated
System running at a lower frequency
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41
3. HARDWARE SETUP
7. During power-on, hold down <Delete> to enter BIOS setup. Follow the
instructions in 4. BIOS SETUP.
* Powering Off your computer: You must first exit or shut down your
operating system before switching off the power switch. ForATX 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 “You can now safely turn off your computer”
will not appear when shutting down with ATX power supplies.
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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 left-hand
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 COPYD:\AFLASH\AFLASH.EXEA:\ (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.
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.
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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. Type 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!
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. Type 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>.
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4. BIOS SETUP
6. When prompted to confirm the BIOS update, press Y to start the up-
date.
7. The utility starts to program the new BIOS information into the flash
ROM. The boot block will be updated automatically only when neces-
sary. 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.
NOTE: When you see the message “Boot Block is different”, you
may still press <Y> to update the BIOS. Yet if the update fails, your
system will run a greater risk of boot failure depending on whether
the boot block is damaged or not.
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45
4. BIOS SETUP
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.
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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 press-
ing 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 re-
flect your BIOS screens exactly.
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47
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
BOOT
EXIT
Use this menu to configure and enable Power Management
features.
Use this menu to configure the default system device used to lo-
cate and load the Operating System.
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
functions.
Navigation Key(s)
<F1> or <Alt + H>
Function Description
Displays the General Help screen from anywhere in the BIOS
Setup
<Esc>
Jumps to the Exit menu or returns to the main menu from a sub-
menu
← 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
Moves the cursor to the first field
<Home> or <PgUp>
<End> or <PgDn>
Moves the cursor to the last field
<F5>
Resets the current screen to its Setup Defaults
Saves changes and exits Setup
<F10>
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4. BIOS SETUP
General Help
In addition to the Item Specific Help window, the BIOS setup program also pro-
vides a General Help screen. This screen can be called up from any menu by sim-
ply 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 docu-
ment. 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 op-
tions for a field parameter. To call up a sub-menu, 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 leg-
end keys and their corresponding functions. Practice navigating through the vari-
ous menus and sub-menus. 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 cur-
rently highlighted field.
NOTE: The item heading in square brackets represents the default setting for
that field.
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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-
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), Year: (100 year range). Use the <Tab> 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]
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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 in-
stalled hard disk. To allow the BIOS to detect the drive type automati-
cally, 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).
Other options for the Type field are:
[None] - to disable IDE devices
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51
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]
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 Address-
ing 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 docu-
mentation 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].
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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 high-
est number supported by the drive. This field can also be configured manu-
ally. Note that when this field is automatically configured, the set value
may not always be the fastest value for the drive. Refer to the documenta-
tion 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 be-
cause system resources used in this feature may decrease system perfor-
mance. 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]
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 ca-
pability. 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]
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53
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
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 charac-
ters. Configuration options: [1/4 Sec] [1/2 Sec] [3/4 Sec] [1 Sec]
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4. BIOS SETUP
Language [English]
This allows selection of the BIOS’ displayed language. Currently only English is avail-
able.
Supervisor Password [Disabled] / User Password [Disabled]
These fields allow you to set the passwords. To set the password, highlight the ap-
propriate field and press <Enter>. Type 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 pass-
words are not case sensitive. In other words, it makes no difference whether
you enter a password using upper or lowercase letters. The BIOS Setup pro-
gram 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.
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]
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.
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