®
CUA266
JumperFree™ 133MHz FSB
DDR/SDR SDRAM AGP Pro/4X
Socket 370 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:
+886-2-2893-7775
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):
MB/Others: +49-2102-9599-0 Notebook: +49-2102-9599-10
+49-2102-9599-11
WWW:
FTP:
ftp.asuscom.de/pub/ASUSCOM
ASUS CUA266 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 ASUS CUA266 Motherboard ...................................................... 8
2.1.1 Specifications ..................................................................... 8
2.1.2 Performance...................................................................... 10
2.1.3 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 Hardware Setup Procedure......................................................... 17
3.4 Motherboard Settings ................................................................. 17
3.5 System Memory ......................................................................... 21
3.5.1 General DIMM Notes....................................................... 21
3.5.2 Memory Installation ......................................................... 22
3.6 Central Processing Unit (CPU) .................................................. 23
3.6.1 CPU Installation ............................................................... 24
3.7 Expansion Cards ........................................................................ 25
3.7.1 Installing an Expansion Card ........................................... 25
3.7.2 Assigning IRQs for Expansion Cards .............................. 26
3.7.3 Accelerated Graphics Port (AGP) Pro Slot ...................... 27
3.7.4 Audio Modem Riser (AMR)) Slot.................................... 28
3.8 Connectors ................................................................................ 29
3.8.1 External Connectors ......................................................... 29
3.8.2 Internal Connectors .......................................................... 32
3.9 Starting Up the First Time.......................................................... 42
4
ASUS CUA266 User’s Manual
CONTENTS
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 .............................................. 45
4.2 BIOS Setup Program.................................................................. 47
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 ........................................................... 60
4.4.2 I/O Device Configuration ................................................. 63
4.4.3 PCI Configuration ............................................................ 65
4.5 Power Menu ............................................................................... 67
4.5.1 Power Up Control............................................................. 69
4.5.2 Hardware Monitor ............................................................ 71
4.6 Boot Menu ................................................................................. 72
4.7 Exit Menu................................................................................... 74
5. SOFTWARE SETUP ....................................................................... 77
5.1 Operating Systems ..................................................................... 77
5.1.1 Windows 98 First Time Installation ................................. 77
5.2 CUA266 Motherboard Support CD ........................................... 77
5.2.1 Installation Menus ............................................................ 77
5.2.2 Applications...................................................................... 78
6. SOFTWARE REFERENCE ........................................................... 81
6.1 ASUS PC Probe ......................................................................... 81
6.1.1 Starting ASUS PC Probe .................................................. 81
6.1.2 Using ASUS PC Probe ..................................................... 82
6.1.3 ASUS PC Probe Task Bar Icon ........................................ 86
7. APPENDIX....................................................................................... 87
7.1 Glossary ..................................................................................... 87
INDEX ................................................................................................... 91
ASUS CUA266 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 approved
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 CUA266 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
6. SOFTWARE REFERENCE
7. APPENDIX
Instructions on setting up the included software
Reference material for the included software
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.
Package Contents
Optional Item
ASUS IrDA-compliant infrared
module
(1) ASUS Motherboard
(1) 40-pin 80-conductor ribbon
cable for internal UltraDMA/66
or UltraDMA/33 IDE drives
(1) Ribbon cable for two 3.5”
floppy disk drives
(1) ASUS Support CD with drivers
and utilities
(1) Bag of spare jumper caps
(1) ASUS 2-port USB Connector
Set
(1) User’s Manual
ASUS CUA266 User’s Manual
7
2. FEATURES
2.1 ASUS CUA266 Motherboard
Powered by Intel® Pentium® III/Celeron™ processors, the CUA266 motherboard
bundles select features and compatible interfaces to deliver value and flexibility.
2.1.1 Specifications
•
•
Latest Processor Support
Intel Pentium® III 100/133MHz FSB Coppermine core FC-PGA
Intel Celeron™
100/66MHz FSB
Coppermine core PPGA/FC-PGA
North Bridge System Chipset: Features the ALi M1651 North Bridge that
provides optimum architecture design to support Intel Pentium III/Celeron CPUs
with 133/100 FSB, a memory interface for both 66/100/133 SDR and 200/266
DDR, and AGP Pro/4X interface solution.
•
•
South Bridge System Chipset:ALi M1535D+ South Bridge chipset provides a
high integration bridge between PCI bus and peripheral bus. The chipset comes
with built-in advanced Super I/O controller and power management feature.
DDR/SDR Memory Support: Equipped with two Double Data Rate (DDR)
Dual Inline Memory Module (DIMM) sockets to support up to 2GB of memory
using the latest high-speed 2.5V PC1600/PC2100 SDRAM modules, and three
Single Data Rate (SDR) sockets for a maximum of 3GB memory using 3.3V
PC133/100 SDRAM.
•
JumperFree™ Mode: Allows processor settings and easy overclocking of
frequency and Vcore voltage through BIOS setup when the JumperFree™ mode
is enabled. Easy-to-use DIP switches come with the motherboard board to allow
manual adjustment of the processor external/internal frequency.
•
UltraDMA/100 Support: Comes with an onboard PCI Bus Master IDE controller
with two connectors that support four IDE devices on two channels. Supports
UltraDMA/100, UltraDMA/66, UltraDMA/33, PIO Modes 3 & 4, 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.
•
AGP Pro Slot: Comes with an Accelerated Graphics Port (AGP) Pro slot that
supports high performance AGP cards targeted at 3D graphical applications
supporting 133MHz 4X mode. The slot is backward compatible with AGP 4X/
2X cards.
•
•
•
Wake-On-LAN: Supports Wake-On-LAN activity through a WOL connector
or an optional ASUS PCI-L101 10/100 Fast Ethernet PCI card.
Wake-On-Ring: Supports Wake-On-Ring activity through a PCI modem card
that supports a WOR connector.
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.
ASUS CUA266 User’s Manual
8
2. FEATURES
•
•
SMBus: Features the System Management Bus interface used to physically
transport commands and information between SMBus devices.
PCI Expansion Slots: Provides five 32-bit PCI (Rev. 2.2) expansion slots that
support Bus Master PCI cards, such as SCSI or LAN cards, with 133MB/s
maximum throughput.
•
•
AMR Slot: Supports an Audio Modem Riser (AMR) slot that accommodates a
specially designed audio/modem card.
Advanced Super I/O: Provides two high-speed UART compatible serial ports
and one parallel port with EPPand ECPcapabilities. UART2 can also be directed
from COM2 to the Infrared Module for wireless connections. The Super I/O
controller built-in the M1535D+ South Bridge also supports a floppy disk drive,
PS/2 keyboard, and PS/2 mouse.
•
•
Smart BIOS: 2Mb firmware provides Vcore and CPU/DDR SDRAM frequency
adjustments, boot block write protection, and HD/SCSI/MO/ZIP/CD/Floppy boot
selection.
EnhancedACPI andAnti-Boot Virus Protection: Programmable BIOS (Flash
EEPROM) that offers enhanced ACPI for Windows 98/2000/ME compatibility,
built-in firmware-based virus protection, and autodetection of most devices for
a virtual automatic setup.
•
•
IrDA: Supports an optional infrared port module for wireless interface.
Desktop Management Interface (DMI): Supports DMI through BIOS that
allows hardware to communicate within a standard protocol and create a higher
level of compatibility. (Requires DMI-enabled components.)
Onboard LED: Comes with a power LED that lights up if there is any standby
power on the motherboard. This LED acts as a reminder to turn off the system
power before plugging or unplugging devices to prevent damage to the
motherboard, peripherals, and other system components.
OnboardAudio (optional):Audio models come with the four-channel C-Media
CMI8738 PCI audio controller that supports the legacy audio SB PRO™, FM
emulator/DLS wavetable music synthesis, and HRTF 3D positional audio
functions.
•
•
•
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.
ASUS CUA266 User’s Manual
9
2. FEATURES
2.1.2 Performance
•
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 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.
•
PC’99 Compliant: Both the BIOS and hardware levels of ASUS smart series
motherboards are PC’99 compliant. The new PC’99 requirements for systems
and components are based on the following high-level goals: Support for Plug-
n-Play compatibility and power management for configuring and managing all
system components, and 32-bit device drivers and installation procedures for
Windows 95/98/NT. Color-coded connectors and descriptive icons make
identification easy as required by PC’99.
•
High-Speed Data Transfer Interface: Support for UltraDMA/100 through the
onboard IDE bus master controller triples the UltraDMA/33 burst transfer rate.
UltraDMA/100 is backward compatible with DMA/66, DMA/33, and other
existing DMA devices to save the need to upgrade current EIDE/IDE drives.
(UltraDMA/66 requires a 40-pin 80-conductor cable).
•
Concurrent PCI: Concurrent PCI allows multiple PCI transfers from PCI master
busses to the memory and processor.
ASUS CUA266 User’s Manual
10
2. FEATURES
2.1.3 Intelligence
•
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.
•
Dual Function Power Button: Pushing the power button for less than 4 seconds
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 and system fans can be monitored for RPM and failure. All
fans are set for its normal RPM range and alarm thresholds.
•
•
Power LED (requiresACPI OS support): The power LED indicates the system
status.
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.
•
System Resources Alert: Today’s operating systems such as Windows 98/ME
and Windows NT/2000, require much more memory and hard drive space to
present enormous user interfaces and run large applications. The system resource
monitor warns the user before the system resources are used up to prevent possible
application crashes. Suggestions provide the user some information on managing
their limited resources more efficiently.
•
•
Temperature Monitoring and Alert: CPU temperature is monitored by the
ASUS ASIC through the CPU’s internal thermal diode (on Pentium III and
Celeron) to prevent system overheat and system damage.
Voltage Monitoring and Alert: System voltage levels are monitored to ensure
stable voltage to critical motherboard components. Voltage specifications are
more critical for future processors, so monitoring is necessary to ensure proper
system configuration and management.
•
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.
ASUS CUA266 User’s Manual
11
2. FEATURES
2.2 Motherboard Components
Location
See opposite page for locations.
Processor Support Socket 370 for Pentium III Coppermine Processors ................ 2
Feature Setting DIP Switches ................................................... 8
Chipsets ALi M1651 North Bridge ......................................................... 1
Ali M1535D+ South Bridge ................................................... 15
2Mbit Programmable Flash EEPROM ................................... 12
Main Memory Maximum 3GB support
2 DDR DIMM Sockets ............................................................. 3
3 SDR DIMM Sockets ............................................................. 5
Expansion Slots 5 PCI Slots .............................................................................. 19
1 Accelerated Graphics Port (AGP) Pro/4X Slot ................... 20
1 Audio Modem Riser ............................................................ 17
System I/O 1 Floppy Disk Drive Connector ............................................. 13
2 IDE Connectors (UltraDMA/100 Support) ........................... 7
1 ASUS iPanel Connector ........................................................ 9
1 Parallel Port ............................................................... (Top) 22
2 Serial Ports (COM1/COM2) ............................... (Bottom) 22
USB Connectors (Port 0 & Port 1) ........................................ 23
USB Connectors (Ports 2/3/4/5) ............................................. 14
1 PS/2 Mouse Connector .............................................. (Top) 24
1 PS/2 Keyboard Connector ................................... (Bottom) 24
Hardware Monitoring System Voltage Monitoring (integrated in ASUS ASIC) ....... 10
3 Fan Power and Speed Monitoring Connectors
Special Features Onboard LED ........................................................................... 4
Wake-On-LAN Connector...................................................... 16
Wake-On-Ring Connector ...................................................... 11
Audio Features (on audio models only)
CMI8738 Audio Controller .................................................... 18
1 Game/MIDI Port........................................................ (Top) 21
1 Line Out Connector ..................................... (Bottom, left) 21
1 Line In Connector ................................... (Bottom, center) 21
1 Microphone Connector ............................. (Bottom, right) 21
Power ATX Power Supply Connector ................................................. 6
Form Factor ATX
ASUS CUA266 User’s Manual
12
2. FEATURES
2.2.1 Component Locations
1
2
3
4 5 6
7
24
23
22
21
20
19
18
17
16
15 14 131211 109 8
ASUS CUA266 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
JTPWR
COM2
Line
Out
ALi
M1651
Chipset
Line
In
PWR_FAN
Mic
In
0
1
2
3
4
5
MIC2
AUX
0
1
2
3
AUDIO_PANEL
CD1
LED
JP25V
Accelerated Graphics Port (AGP Pro)
CR2032 3V
Lithium Cell
CMOS Power
MODEM
PCI 1
CL_RTC
FLOPPY
CUA266
Flash EEPROM
PCI 2
PCI 3
ALi
(Programable BIOS)
M1535D+
Chipset
JEN
WOR
PCI 4
IR
AFPANEL
WOL_CON
CHASSIS
SMB
PCI 5
USB2
USB1
CHA_FAN
IDELED
PANEL
Audio Modem Riser
(AMR)
NOTE: The C-Media CMI8738 audio chipset, external GAME/AUDIO
connectors, and internal audio connectors are optional components, and
present in audio models only. The components are grayed in the above
motherboard layout.
ASUS CUA266 User’s Manual
14
3. HARDWARE SETUP
3.2 Layout Contents
Motherboard Settings
1) JEN
p. 18 JumperFree Mode Setting (Disable/Enable)
p. 19 CPU External Frequency Selection
p. 19 SDRAM Voltage Selection
2) DIP_SW 1–4
3) JP25V
4) R220
p. 20 Clear RTC RAM
Expansion Slots/Sockets
1) DDR DIMM 1/2
p. 23 System Memory Support
SDR DIMM 1/2/3
2) Socket 370
3) PCI 1/2/3/4/5
4) AGP Pro
p. 25 CPU Support
p. 27 32-bit PCI Bus Expansion Slots
p. 29 Accelerated Graphics Port Slot
p. 30 Audio Modem Riser Slot
5) AMR Slot
External Connectors
1) PS2KBMS
p. 31 PS/2 Mouse Port (6-pin female)
2) PS2KBMS
3) USB
p. 31 PS/2 Keyboard Port (6-pin female)
p. 31 Universal Serial Bus Ports 1&2(two4-pin female)
p. 32 Parallel Port (25-pin female)
4) PRINTER
5) COM1/COM2
p. 32 Serial Ports (9-pin /10-1 pin male)
6) GAME_AUDIO (Top) p. 32 Game/MIDI Port (15-pin female)
7) GAME_AUDIO (Bottom) p. 33 Audio Connectors (1/8” jacks)
Internal Connectors
1) IDELED
p. 34 IDE Activity LED (2-pin)
2) FLOPPY
p. 34 Floppy Disk Drive Connector (34-pin)
p. 35 IDE Connectors (Two 40-1 pin)
3) PRIMARY IDE
SECONDARY IDE
4) WOL_CON
5) WOR
p. 36 Wake-On-LAN Connector (3-pin)
p. 36 Wake-On-Ring Connector (2-pin)
6) CPU/PWR/CHA_FAN p. 37 CPU, Power, and Chassis Fan Connectors (four 3-pin)
7) USB2_3/USB4_5
8) IR
p. 37 USB Headers (10-1 pin)
p. 38 Standard Infrared Module Connector (5-pin)
p. 38 Chassis Intrusion Lead (2-pin)
p. 39 ATX Power Supply Connector (20-pin)
p. 39 SMBus Connector (5-1 pin)
9) CHASSIS
10) ATXPWR
11) SMB
12) AFPANEL
13) AUDIO_PANEL
p. 40 ASUS iPanel Connector (24-1 pin)
p. 40 Audio Panel Connector (10-1 pin)
ASUS CUA266 User’s Manual
15
3. HARDWARE SETUP
14) CD/AUX/MODEM
p. 41 Internal Audio Connectors (4-1 pin)
p. 41 Internal Microphone Connector (3-pin)
p. 42 Power Supply Thermal Sensor (2-pin)
p. 43 System Power LED Lead (3-pin)
p. 43 System Warning Speaker Lead (4-pin)
p. 43 System Message LED Lead (2-pin)
p. 43 System Management Interrupt Lead (2-pin)
p. 43 ATX / Soft-Off Switch Lead (2-pin)
p. 43 Reset Switch Lead (2-pin)
15) MIC2
16) JTPWR
17) PWR.LED (PANEL
)
18) SPEAKER (PANEL)
19) MSG.LED (PANEL)
20) SMI (PANEL)
21) PWR.SW (PANEL)
22) RESET (PANEL)
ASUS CUA266 User’s Manual
16
3. HARDWARE SETUP
3.3 Hardware Setup Procedure
Complete the following steps before using your computer:
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 cables
6. Configure the BIOS parameter settings
3.4 Motherboard Settings
This section tells you how to change motherboard function settings through the
switches and/or jumpers.
WARNING! Computer motherboards and expansion cards contain very delicate
Integrated Circuit (IC) chips. To avoid damaging them due to static electricity,
follow these precautions whenever you work on your computer.
1. Unplug the computer when working on the internal components.
2. Use a grounded wrist strap or touch a safely grounded object or to a metal
object, such as the power supply case, before handling computer components.
3. Hold components by the edges and try not to touch the IC chips on them.
4. Whenever you uninstall any component, place the components on a grounded
antistatic pad or in the bag that came with the components.
5. Before you install or remove any component, ensure that theATX power
supply is switched off or the power cord is detached from the power
supply. Failure to do so may cause severe damage to the motherboard,
peripherals, and/or components.
(TIP: When lit, the onboard LED indicates that the system is in suspend or
soft-off mode, not powered OFF. See illustration below.)
LED
ON
OFF
CUA266
Standby
Power
Powered
Off
CUA266 Onboard LED
ASUS CUA266 User’s Manual
17
3. HARDWARE SETUP
Motherboard Frequency Settings (DIP Switches)
The motherboard frequency is adjusted through the DIP switches. The white block
represents the switch’s position. The illustration below shows all the switches in the
OFF position.
DSW
1. Frequency Multiple
2. Frequency Multiple
3. Frequency Multiple
4. Frequency Multiple
CUA266
OFF ON
CUA266 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).
Setting
Enable (JumperFree)
JEN
[2-3] (default)
Disable (Jumper Mode) [1-2]
JEN
1 2
2 3
Jumper Mode
Jumper Free
(Default)
DSW
CUA266
OFF ON
CUA266 Jumper Mode Setting
(Default)
NOTE: In JumperFree™ mode, set all DIP switches (DIP_SW) to OFF.
ASUS CUA266 User’s Manual
18
3. HARDWARE SETUP
2) CPU External Frequency Selection (DIP_SW Switches 1–4)
This option tells the clock generator what frequency to send to the CPU and
SDRAM. This allows the selection of the CPU’s External frequency (or BUS
Clock). The BUS Clock multiplied by the Frequency Multiple equals the CPU’s
Internal frequency (the advertised CPU speed).
DSW
CUA266
CPU→
66MHz 100MHz 133MHz
100MHz 100MHz 133MHz
SDRAM→
CUA266 CPU External
Frequency Selection
WARNING! Set the CPU frequency only to the recommended settings. Frequencies
other than the recommended CPU bus frequencies are not guaranteed to be stable.
Overclocking the processor is not recommended. It may result in a slower speed.
3) SDRAM Voltage Selection (JP25V)
This jumper allows you to select the specific voltage supplied to the DDR DIMMs
for overclocking. The setting 1-2 allows for +2.5V, while setting 2-3 allows for
+2.6V. The default setting is 2.5V.
JP25V
CUA266
1 2
2 3
+2.5V
+2.6V
CUA266 JP25V
WARNING! Using a higher voltage may help when overclocking but may result
in shortening the computer components life. It is receommended that you keep
this jumper to its default setting.
ASUS CUA266 User’s Manual
19
3. HARDWARE SETUP
4) Clear RTC RAM (R220)
These solder points allow you to clear the Real Time Clock (RTC) RAM in
CMOS. You can clear the CMOS memory of date, time, and system setup
parameters by erasing the CMOS RTC RAM data. The RAM data in CMOS,
that include system setup information such as system passwords, is powered by
the onboard button cell battery.
To erase the RTC RAM:
1. Turn OFF the computer and unplug the power cord.
2. Remove the battery.
3. Short the solder points.
4. Re-install the battery.
5. Plug the power cord and turn ON the computer.
6. Hold down the <Del> key during the boot process and enter BIOS setup to
re-enter data.
CR2032 3V
Lithium Cell
CMOS Power
CUA266
CL_RTC
Short solder points
to Clear CMOS
CUA266 Clear RTC RAM
ASUS CUA266 User’s Manual
20
3. HARDWARE SETUP
3.5 System Memory
This motherboard supports either Double Data Rate (DDR) and Single Date Rate
(SDR) Dual Inline Memory Modules (DIMMs).
Two DDR DIMM sockets are available for 2.5V (power level) DDR Synchronous
Dynamic Random Access Memory (DDR SDRAM) of 64, 128, 256, 512MB, or
1GB densities for a system memory configuration up to 2GB.
Three SDR DIMM sockets are also onboard for 3.3V unbuffered SDRAM of 64,
128, 256, 512MB, or 1GB densities for a maximum system memory of 3GB.
WARNING! Do not mix DDR DIMMs and SDR DIMMs. Mixed configurations
do not work on this motherboard.
Install memory in any combination as follows:
DIMM Location
184-pin DIMM (DDR)
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 Using DDR DIMMs (Max. 2GB)=
DIMM Location
168-pin DIMM (SDR)
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 Using SDR DIMMs (Max. 3GB) =
3.5.1 General DIMM Notes
•
•
DIMMs that have more than 18 chips are not supported on this motherboard.
For the system CPU bus to operate 200MHz/266MHz, use PC1600-/PC2100-
compliant DDR DIMMs.
•
•
ASUS motherboards support Serial Presence Detect (SPD) DIMMs. This is the
memory of choice for best performance vs. stability.
BIOS shows SDRAM memory on bootup screen.
ASUS CUA266 User’s Manual
21
3. HARDWARE SETUP
3.5.2 Memory Installation
WARNING! Make sure that you unplug the power supply when adding or
removing memory modules or other system components. Failure to do so may
cause severe damage to both the motherboard and the components.
A 184-pin DDR SDRAM DIMM has a single notch near the center. The number of
pins are different on either side of the notch so the module only fits in one direction.
Insert a DDR DIMM into the DDR socket as shown.
104 Pins
80 Pins
CUA266
CUA266 184-Pin DDR DIMM Sockets
A 168-pin SDR SDRAM DIMM has two notches. This feature differentiates an
SDR DIMM from a DDR DIMM. The SDR DIMM notches match the breaks on the
DIMM socket so the module only fits in one direction. Insert an SDR DIMM into
the SDR socket as shown.
88 Pins
CUA266
60 Pins
20 Pins
CUA266 168-Pin DIMM Sockets
Lock
22
ASUS CUA266 User’s Manual
3. HARDWARE SETUP
3.6 Central Processing Unit (CPU)
The motherboard comes with a ZIF Socket for the supported CPUs listed in section
2.1.1 Specifications. The following illustration shows the CPU socket location on
the motherboard and the correct CPU orientation.
Socket 370 CPU (Top) Socket 370 CPU (Bottom)
Celeron
(PPGA)
Notch
CUA266
Pentium III
&Celeron
(FC-PGA)
CUA266 Socket A
Gold Arrow
Note in the illustration that CPUs have marks (usually a notch or a gold mark on one
corner) to help you identify the proper orientation and enable you to correctly install
a CPU. It is important that you match the marked corner of the CPU with the
corresponding corner on the socket so as not to damage the CPU pins.
The CPU picture above is for reference only. Usually, when you buy a CPU, the
heatsink and fan are already attached to the CPU. If a heatsink and fan did not come
with the package, make sure you obtain one before installing the CPU.
WARNING! You must install the proper heatsink and fan to the CPU. Failure to
do so will cause the CPU to overheat and may damage both the CPU and the
motherboard. Install an auxillary fan, if necessary.
CAUTION! Be careful not to scrape the motherboard when mounting/unmounting
a clamp-style processor fan to avoid damaging the motherboard.
Proceed to the next section for the steps on how to properly install a CPU.
ASUS CUA266 User’s Manual
23
3. HARDWARE SETUP
3.6.1 CPU Installation
Follow these steps to install a CPU.
1. Locate the ZIF socket on the motherboard.
2. Unlock the socket by pressing the lever
sideways then lifting it up to a 90°-100°
angle.
3. Position the CPU above the socket such
that its notched or marked corner matches
the socket corner near the end of the lever,
while making sure that the CPU is parallel
to the socket.
4. Carefully insert the CPU into the socket
until it fits in place.
CAUTION! The CPU fits only in one orientation. Do not force the CPU into the
socket to prevent bending the pins and damaging the CPU. If the CPU does not
fit completely, check its orientation or check for bent pins.
5. When the CPU is in place, press it firmly on the socket while you push down the
socket lever to secure the CPU. The lever clicks on the socket indicating that it
is locked.
6. Attach the heatsink and fan to the CPU, if they were not pre-installed by the
vendor. Refer to the installation instructions that came with the heatsink and fan.
NOTE: Do not forget to set the correct Bus Frequency and Multiple
(frequency multiple setting is available only on unlocked processors) for the
processor to avoid start-up problems.
24
ASUS CUA266 User’s Manual
3. HARDWARE SETUP
3.7 Expansion Cards
In the future, you may need to install expansion cards. The motherboard has five
PCI expansion slots to support these cards. Follow the steps in the next section
when installing expansion cards.
WARNING! Unplug the system power cord when adding or removing expansion
cards or other system components. Failure to do so may cause severe damage to
both the motherboard and expansion cards.
3.7.1 Installing an Expansion Card
1. Read the documentation that comes with the expansion card and make any
necessary hardware settings for the card before installing it.
2. Remove the system unit cover and the bracket plate on the slot you intend to use.
Keep the screw for later use.
3. Align the card connectors with the slot and press firmly until the card fits in
place.
4. Secure the card to the slot with the screw you removed earlier.
5. Replace the system cover.
6. Change the necessary BIOS settings, if any.
(see section 4.4.3 PCI Configuration to change the settings.)
7. Install the necessary software drivers for the expansion card.
ASUS CUA266 User’s Manual
25
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 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
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 ISA or PCI devices.
Interrupt Request Table for this Motherboard
INT-A INT-B
INT-C INT-D INT-E INT-F INT-G INT-H
PCI slot 1
PCI slot 2
PCI slot 3
PCI slot 4
PCI slot 5
AGP Pro slot
AMR slot
shared
—
—
—
—
—
shared
—
—
—
—
—
shared
—
—
—
—
—
—
shared
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
shared
—
shared
—
—
—
—
—
—
—
—
shared shared
Onboard audio
Onboard USB
—
—
—
—
—
—
—
—
—
shared
shared
—
—
—
—
—
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ASUS CUA266 User’s Manual
3. HARDWARE SETUP
3.7.3 Accelerated Graphics Port (AGP) Pro Slot
This motherboard has an Accelerated Graphics Port (AGP) Pro slot to support the
new generation graphics cards with ultra-high memory bandwidth.
AGP Card without Retention Notch
CUA266
TOP VIEW
28-pin bay
20-pin bay
Rib (inside slot)
Rib
CUA266 Accelerated Graphics
Port (AGP PRO)
CAUTION! TheAGP Pro slot is shipped with a warning label over the 20-pin bay.
DO NOT remove this label and the safety tab underneath it if you are using an
AGP card without a retention notch. Removing may cause the
card to shift and may cause damage to the card, slot, and
motherboard. Remove the label and tab ONLY if you are 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
ASUS CUA266 User’s Manual
27
3. HARDWARE SETUP
3.7.4 Audio Modem Riser (AMR)) Slot
The AMR slot support a specially designed audio and/or modem card called an
Audio Modem Riser (AMR). Main processing is done through software and controlled
by the system chipset. There are two types of AMR, one defined as primary and
another defined as secondary. You can only use primaryAMRs with this motherboard.
(NOTE: The motherboard package does not include the AMR card.)
IMPORTANT! The AMR slot on the motherboard shares the same expansion
slot with PCI Slot 5.
CUA266
CUA266 Audio Modem Riser (AMR) Slot
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ASUS CUA266 User’s Manual
3. HARDWARE SETUP
3.8 Connectors
3.8.1 External Connectors
1) PS/2 Mouse Port (Green 6-pin PS2KBMS)
The system automatically directs IRQ12 to the PS/2 mouse if one is detected. If
no mouse is detected, IRQ12 become available to expansion cards. See PS/2
Mouse Function Control in 4.4 Advanced Menu.
PS/2 Mouse (6-pin Female)
2) PS/2 Keyboard Port (Purple 6-pin PS2KBMS)
This connection is for a standard keyboard using an PS/2 plug (mini DIN). This
connector does not allow standardAT size (large DIN) keyboard plugs. You
may use a DIN to mini DIN adapter on standard AT keyboards.
PS/2 Keyboard (6-pin Female)
3) Universal Serial Bus Ports 1 & 2 (Black two 4-pin USB)
Two USB ports are available for connecting USB devices.
USB 1
Universal Serial Bus (USB) 2
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3. HARDWARE SETUP
4) Parallel Port (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 (Printer) Port (25-pin Female)
5) Serial Ports (Teal/Turquoise 9-pin COM1 / 9-pin COM2)
Two serial ports can be used for pointing devices or other serial devices. To
enable these ports, see Onboard Serial Port 1 / Onboard Serial Port 2 in
4.4.2 I/O Device Configuration for the settings.
COM 1
COM 2
Serial Ports (9-pin Male)
6) Game/MIDI Port (Gold 15-pin GAME_AUDIO) (optional)
This connector supports a joystick or a game pad for playing games, and MIDI
devices for playing or editing audio files.
Joystick/Midi (15-pin Female)
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ASUS CUA266 User’s Manual
3. HARDWARE SETUP
7) Audio Ports (Three 1/8” AUDIO)
(optional)
The Line Out (lime) connects a headphone or speakers. The Line In (light blue)
connects a tape players or other audio sources. The Mic (pink) connects a
microphone.
NOTE: The functions of the audio connectors Line Out, Line In, and Mic
change when the 6-channel audio feature is enabled. Refer to Chapter 5.
SOFTWARE SETUP.
Line Out Line In Mic
1/8" Stereo Audio Connectors
ASUS CUA266 User’s Manual
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3. HARDWARE SETUP
3.8.2 Internal 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: Always connect ribbon cables 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.
1) IDE Activity LED (2-pin IDELED)
This connector supplies power to the cabinet’s IDE activity LED. Read and
write activity by devices connected to the Primary or Secondary IDE connectors
cause the IDE LED to light up.
CUA266
IDELED
TIP: If the case-mounted LED does not
light, try reversing the 2-pin plug.
CUA266 IDE Activity LED
2) 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
CUA266
PIN 1
CUA266 Floppy Disk Drive Connector
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ASUS CUA266 User’s Manual
3. HARDWARE SETUP
3) Primary (Blue) / Secondary IDE Connectors (40-1 pin IDE1/IDE2)
These connectors support the provided UltraDMA/100/66 IDE hard disk ribbon
cable. Connect the cable’s blue connector to the primary (recommended) or
secondary IDE connector, then connect the gray connector to the
UltraDMA/100/66 slave device (hard disk drive) and the black connector to the
UltraDMA/100/66 master device. It is recommended that non-UltraDMA/100/66
devices be connected to the secondary IDE connector. If you install two hard
disks, you must configure the second drive as a slave device by setting its jumper
accordingly. Refer to the hard disk documentation for the jumper settings. BIOS
supports specific device bootup (see 4.6. Boot Menu). If you have more than
two UltraDMA/100/66 devices, purchase another UltraDMA/100/66 cable.
NOTES:
1. Pin 20 on each IDE connector is removed to match the covered hole on the
UltraDMA cable connector. This prevents incorrect orientation when you
connect the cables.
2. The hole near the blue connector on the UltraDMA/100/66 cable is
intentional.
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.
IMPORTANT: For UltraDMA/100/66 IDE devices,use a 40-pin 80-conductor IDE
cable. The UltraDMA/66 cable included in the motherboard package also
supports UltraDMA/100.
NOTE: Orient the red markings
(usually zigzag) on the IDE
ribbon cable to PIN 1.
CUA266
PIN 1
CUA266 IDE Connectors
ASUS CUA266 User’s Manual
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3. HARDWARE SETUP
4) Wake-On-LAN Connector (3-pin WOL_CON)
This connector connects to a LAN card with a Wake-On-LAN output, such as
the ASUS PCI-L101 Ethernet card (see 7. Appendix). The connector powers up
the system when a wakeup packet or signal is received through the LAN card.
IMPORTANT: This feature requires that Wake-On-LAN features are enabled
(see 4.4.3 Power Management) 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
CUA266
+5 Volt Standby
PME
Ground
CUA266 Wake-On-LAN Connector
5) Wake-On-Ring Connector (2-pin WOR)
This connector connects to 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 Wake-On-Ring features are enabled
(see 4.4.3 Power Management) and that your system has an ATX power supply
with at least 720mA +5V standby power.
WOR
CUA266
Ground
RI#
2
1
CUA266 Wake-On-Ring Connector
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ASUS CUA266 User’s Manual
3. HARDWARE SETUP
6) CPU Fan, Power Fan, and Chassis Fan Connectors
(CPU_FAN, PWR_FAN, CHA_FAN)
The three fan connectors support cooling fans of 350mA (4.2 Watts) or less.
Orient the fans so that the heat sink fins allow airflow to go across the onboard
heat sinks instead of the expansion slots. The fan wiring and plug may vary
depending on the fan manufacturer. Connect the fan cable to the connector making
sure that the black wire matches the ground pin. (NOTE: Use the “Rotation”
signal only with a specially designed fan with a rotation signal. You can monitor
the Rotations Per Minute (RPM) using ASUS PC Probe (see 6. SOFTWARE
REFERENCE).
WARNING! Make sure to connect the fan cables to the fan connectors. Lack of
sufficient airflow within the system could cause damage to the motherboard.
These are not jumpers, do not place jumper caps over these connectors!
CPU_FAN
GND
+12V
Rotation
PWR_FAN
CUA266
CHA_FAN
CUA266 12-Volt Cooling Fan Power
7) USB Headers (10-1 pin USB1, USB2)
If the USB port connectors on the back panel are inadequate, two USB headers are
available for four additional USB port connectors. Connect a 2-port USB connector
set to a USB header and mount the USB bracket to an open slot in the chassis.
USB1
USB2
CUA266
1
6
5
10
CUA266 Front Panel USB Headers
ASUS CUA266 User’s Manual
35
3. HARDWARE SETUP
8) Infrared Module Connector (5-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 SIR connector according to
the pin definitions. (NOTE: The SIR module does not come with the motherboard
package. The CIR module is currently not available.)
Front View
Back View
IR
1
CUA266
+5V
(NC)
IRTX
GND
IRRX
CUA266 Infrared Module Connector
9) Chassis Open Alarm Lead (4-pin CHASSIS)
This lead is for a chassis designed for chassis intrusion detection. This requires
an external detection mechanism such as a chassis intrusion monitor/sensor or
microswitch. When any chassis component is removed, the sensor is triggered
and a high-level signal is sent to this lead to record a chassis intrusion event.The
event is then be processed by software such as LDCM. When not using the
chassis intrusion lead, place a jumper cap over the pins to close the circuit.
CUA266
1
CHASSIS
CUA266 Chassis Open Alarm Lead
36
ASUS CUA266 User’s Manual
3. HARDWARE SETUP
10) Power Supply Connectors (20-pin block ATXPWR)
This connector connects to an ATX 12V power supply. The plug from the power
supply fits in only 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 the ATX 12V power supply (minimum
recommended wattage: 230W) can supply at least 10mA on the +5-volt standby
lead (+5VSB). The system may become unstable and may experience difficulty
powering up if the power supply is inadequate. For Wake-On-LAN support, the
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
CUA266
-12.0Volts
+3.3 Volts
+3.3Volts
+3.3 Volts
CUA266 ATX Power Connector
11) 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,
a multi-device bus that allows multiple chips to connect to the same bus and
enabling each one to act as a master by initiating data transfer.
SMB
CUA266
1
CUA266 SMBus Connector
ASUS CUA266 User’s Manual
37
3. HARDWARE SETUP
12) ASUS iPanel Connector (24-1 pin AFPANEL)
This connector allows you to connect an optionalASUS iPanel, an easy-to access
drive bay with front I/O ports and status LEDs. If you are not using an ASUS
iPanel, you can connect an optional wireless transmitting and receiving infrared
module to the SIR connector.
AFPANEL
SIR
CIR
Standard Infrared (SIR)
Front View Back View
CUA266
IR_CON
+5V
(NC)
IRTX
GND
IRRX
CUA266 Front Panel Connectors
13) Digital Audio Interfaces (10-pin AUDIO_PANEL) (optional)
This connector accommodates the optional ASUS iPanel to allow convenient
audio control from the front panel.
AUDIO_PANEL
MIC2
AGND
MICPWR
Line in_L
AGND2
Line in_R
Line out_L
AGND3
Line out_R
CUA266
CUA266 Audio Panel Connector
38
ASUS CUA266 User’s Manual
3. HARDWARE SETUP
14) Internal Audio Connectors (4-1 pin CD, AUX, MODEM) (optional)
These connectors allow you to receive stereo audio input from 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. It
also allows the sharing of mono_in (such as a phone) and a mono_out (such as a
speaker) between the audio and a voice modem card.
CD1 (Black)
Left Audio Channel
AUX (White)
Ground
Right Audio Channel
MODEM
CUA266
CUA266 Internal Audio Connectors
15) Internal Microphone Connector (3-pin MIC2) (optional)
This connector allows you to connect chassis-mounted microphone to the
motherboard instead of connecting an external microphone to theATX 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.
MIC2
1
3
CUA266
CUA266 Internal Microphone Connector
ASUS CUA266 User’s Manual
39
3. HARDWARE SETUP
16) Power Supply Thermal Sensor Connector (2-pin JTPWR)
If you have a power supply with thermal monitoring, connect its thermal sensor
cable to this connector.
JTPWR
Power Supply
Thermal Sensor
CUA266
CUA266 Thermal Sensor Connector
40
ASUS CUA266 User’s Manual
3. HARDWARE SETUP
The following 20-pin PANEL illustration is for items 17-22.
*
Requires an ATX power supply.
Speaker
Keyboard Lock
Connector
Power LED
CUA266
Message LED
SMI Lead
Reset SW
ATX Power Switch*
CUA266 System Panel Connectors
17) System Power LED Lead (3-1 pin PWR.LED)
This 3-1 pin connector connects to the system power LED. The LED lights up
when you turn on the system power, and blinks when the system is in sleep or
soft-off mode.
18) System Warning Speaker Lead (4-pin SPEAKER)
This 4-pin connector connects to the case-mounted speaker and allows you to
hear system beeps and warnings.
19) System Message LED Lead (2-pin MSG.LED)
This 2-pin connector is for the system message LED that indicates receipt of
messages from a fax/modem. The normal status for this LED is ON, when there
is no incoming data signal. The LED blinks when data is received. The system
message LED feature requires an ACPI OS and driver support.
20) System Management Interrupt Lead (2-pin SMI)
This 2-pin connector allows you to manually place the system into a suspend
mode, or “Green” mode, where system activity is instantly decreased to save
power and to expand the life of certain system components. Attach the case-
mounted suspend switch this 2-pin connector.
21) ATX Power Switch / Soft-Off Switch Lead (2-pin PWR.SW)
The system power is controlled by a momentary switch attached to this connector.
Pressing the button switches the system between ON and SLEEP, or ON and
SOFT OFF, depending on the BIOS or OS settings. Pressing the button while in
the ON mode for more than 4 seconds turns the system off.
22) Reset Switch Lead (2-pin RESET)
This 2-pin connector connects to the case-mounted reset switch for rebooting
the system without turning off the power switch. This is a preferred method.
ASUS CUA266 User’s Manual
41
3. HARDWARE SETUP
3.9 Starting Up the First Time
1. After making all the connections, replace the system case cover.
2. Be sure that all switches are off (in some systems, marked with ).
3. Connect the power cord to the power connector at the back of the system chassis.
4. Connect the power cord to a power outlet that is equipped with a surge protector.
5. Turn on the devices in the following order:
a. Monitor
b. External SCSI devices (starting with the last device on the chain)
c. 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 chassis.)
6. The power LED on the front panel of the system case lights up. For ATX power
supplies, the system LED lights up when you press theATX power switch. If the
monitor complies with “green” standards or if it has a power standby feature,the
monitor LED may light up or switch between orange and green after the system
LED does. The system then runs the power-on tests. While the tests are running,
the BIOS beeps or additional messages 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. Check the 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
One long beep followed by
No DRAM installed or detected
Video card not found or video card
three short beeps
memory bad
High frequency beeps when
system is working
CPU overheated
System running at a lower frequency
7. At power on, hold down <Delete> to enter BIOS Setup. Follow the instructions
in 4. BIOS SETUP.
* Powering Off the computer: You must first exit or shut down the system before
switching off the power switch. ForATX power supplies, you can press theATX
power switch after exiting or shutting down the operating system. If you use
Windows 9X, click the Start button, click Shut Down, 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” does not
appear when shutting down with ATX power supplies.
42
ASUS CUA266 User’s Manual
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
disk. DO NOT copy AUTOEXEC.BAT and 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 boot disk you created.
NOTE: AFLASH works only in DOS mode. It does not work in the DOS
prompt within Windows and does not work with certain memory drivers
that may be loaded when you boot from the hard drive. It is recommended
that you reboot using a floppy disk.
3. Reboot the 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 the word “unknown” appears 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>.
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4. BIOS SETUP
4.1.2 Updating BIOS Procedures
WARNING! Update the BIOS only if you have problems with the motherboard
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 boot floppy disk you created earlier.
2. Boot from the floppy disk.
3. At the “A:\” prompt, type AFLASH and then press <Enter>.
4. At the Main Menu, type 2 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, then press <Enter>.
NOTE: To cancel this operation, press <Enter>.
6. When prompted to confirm the BIOS update, press Y to start the update.
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4. BIOS SETUP
7. The utility starts to program the new BIOS information into the Flash
ROM. The boot block is updated automatically only when necessary.
This minimizes the possibilities of boot problems in case of update
failures. When the programming is done, Flashed Successfully appears.
8. Follow the onscreen instructions to continue.
WARNING! If you encounter problems while updating the new BIOS, DO NOT
turn off the system because this may cause boot problems. Just repeat the process,
and if the problem still persists, load the original BIOS file you saved to the boot
disk. If the Flash Memory Writer utility is not able to successfully update a
complete BIOS file, the system may not boot. If this happens, call the ASUS
service center for support.
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4.2 BIOS Setup Program
This motherboard supports a programmable EEPROM that you can update using
the provided utility 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 setup screens and descriptions are for reference purposes only, and may
not exactly match what you see on your screen.
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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 locate
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 is 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 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>
<F5>
Moves the cursor to the last field
Resets the current screen to its Setup Defaults
Saves changes and exits Setup
<F10>
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General Help
In addition to the Item Specific Help window, the BIOS setup program also provides
a General Help screen. You may launch this screen from any menu by simply
pressing <F1> or the <Alt> + <H> combination. The General Help screen lists the
legend keys with their corresponding 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
you can display a sub-menu from this field. A sub-menu
contains additional options for a field parameter. To display a
sub-menu, move the highlight to the field and press <Enter>.
The sub-menu appears. Use the legend keys to enter values
and move from field to field within a sub-menu as you would
within a menu. Use the <Esc> key to return to the main menu.
Take some time to familiarize yourself with the legend keys and their corresponding
functions. Practice navigating through the various menus and sub-menus. If you
accidentally make unwanted changes to any of the fields, use the set default hot
key <F5> to load the Setup default values. 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.
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4. BIOS SETUP
4.3 Main Menu
When you enter the Setup program, the following screen appears:
System Time [XX:XX:XX]
Sets the system to the time that you specify (usually the current time). The
format is hour, minute, second. Valid values for hour, minute and second
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 the 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. The Floppy 3
Mode feature allows reading and writing of 1.2MB (as opposed to
1.44MB) on a 3.5-inch diskette. Configuration options: [Disabled]
[Enabled]
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4.3.1 Primary & Secondary Master/Slave
Type [Auto]
Select [Auto] to automatically detect an IDE hard disk drive. If automatic
detection is successful, Setup automatically fills in the correct values for
the remaining fields on this sub-menu. If automatic detection fails, this
may be because the hard disk drive is too old or too new. If the hard disk
was already formatted on an older system, Setup may detect incorrect
parameters. In these cases, select [User Type HDD] to manually enter the
IDE hard disk drive parameters. Refer to the next section for details.
NOTE: After entering the IDE hard disk drive information into BIOS,
use a disk utility, such as FDISK, to partition and format new IDE hard
disk drives. This is necessary so that you can write or read data from the
hard disk. Make sure to set the partition of the Primary IDE hard disk
drives to active.
CAUTION! Before attempting to configure a hard disk drive, make sure you
have the configuration information supplied by the drive manufacturer. Incorrect
settings may cause the system to fail to recognize the installed hard disk.
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4. BIOS SETUP
[User Type HDD]
Manually enter the number of cylinders, heads and sectors per track for the drive.
Refer to the drive documentation or on the drive label 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 BlockAddressing (LBA)
is enabled, 28-bit addressing of the hard drive disregarding cylinders, heads, or
sectors. Note that LBA Mode is necessary for drives with more than 504MB storage
capacity. Configuration options: [LBA] [LARGE] [Normal] [Match Partition Table]
[Manual]
Cylinders
This field configures the number of cylinders. Refer to the drive documentation to
determine the correct value to enter into this field. NOTE: To make changes to
this field, set the Type field to [User Type HDD] and the Translation Method
field to [Manual].
Head
This field configures the number of read/write heads. Refer to the drive documentation
to determine the correct value to enter into this field. NOTE: To make changes to this
field, set the Type field to [User Type HDD] and the Translation Method field to
[Manual].
Sector
This field configures the number of sectors per track. Refer to the drive
documentation to determine the correct value to enter into this field. NOTE: To
make changes to this field, set the Type field to [User Type HDD] and the
Translation Method field to [Manual].
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CHS Capacity
This field shows the drive’s maximum CHS capacity as calculated by the BIOS
based on the drive information you entered.
Maximum LBA Capacity
This field shows the drive’s maximum LBA capacity as calculated by the BIOS
based on the drive information you entered.
Multi-Sector Transfers [Maximum]
This option automatically sets the number of sectors per block to the highest number
that the drive supports. Note that when this field is automatically configured, the set
value may not always be the fastest value for the drive. You may also manually
configure this field. Refer to the documentation that came with the hard drive to
determine the optimum value and set it manually. NOTE: To make changes to this
field, set the Type field to [User Type HDD]. Configuration options: [Disabled] [2
Sectors] [4 Sectors] [8 Sectors] [16 Sectors] [32 Sectors] [Maximum]
SMART Monitoring [Disabled]
This filed allows you to enable or disable the S.M.A.R.T. (Self-Monitoring,Analysis
and Reporting Technology) system that utilizes internal hard disk drive monitoring
technology. This parameter is normally disabled because the resources used in the
SMART monitoring 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]
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, set the Type field to [User Type
HDD]. Configuration options: [0] [1] [2] [3] [4] [5] [Disabled]
Other options for the Type field 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 making your selections on this sub-menu, press the <Esc> key to return
to the Main menu. When the Main menu appears, the hard disk drive filed
displays the size for the hard disk drive that you configured.
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4. BIOS SETUP
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 characters.
Configuration options: [1/4 Sec] [1/2 Sec] [3/4 Sec] [1 Sec]
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Language [English]
This field displays the BIOS language version.
Supervisor Password [Disabled] / User Password [Disabled]
These fields allow you to set passwords. To set a password, highlight the appropriate
field and press <Enter>. Type in a password then press <Enter>. You can type up to
eight alphanumeric characters. Symbols and other characters are ignored. To confirm
the password, type the password again and press <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 appears.
Press <Enter>. The password is set to [Disabled].
A Note about Passwords
TheBIOSSetupprogramallowsyoutospecifypasswordsintheMainmenu.Thepasswords
controlaccesstotheBIOSduringsystemstartup. Passwordsarenotcasesensitive, meaning,
it makes no difference whether you the password using uppercase or lowercase letters.
The BIOS Setup program allows you to specify two different passwords: a Supervisor
password and a User password. If you did not set a Supervisor password, anyone can
access the BIOS Setup program. If you did, the Supervisor password is required to enter
the BIOS Setup program and to gain full access to the configuration fields.
Forgot the Password?
If you forget your password, you can clear it 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. Turn OFF the computer and unplug the power cord.
2. Remove the battery.
3. Short the jumper.
4. Re-install the battery.
5. Plug the power cord and turn ON the computer.
6. Hold down the <Del> key during the boot process and enter BIOS
setup to re-enter data.
Halt On [All Errors]
This field specifies the types of errors that 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 field automatically displays the amount of conventional memory detected by the
system during the boot process.
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4. BIOS SETUP
4.4 Advanced Menu
(Scroll down to see the last item as shown)
CPU Speed [Manual]
When the motherboard is set to JumperFree™
mode, this field allows you to select the internal
frequency of your CPU. Available options
include multiples of 100 and 133. Select
[Manual] if you want to make changes to the
two subsequent fields. Note that selecting a
frequency higher than the CPU manufacturer
recommends may cause the system to hang or
crash.
Multiples of 100
(for 100MHz FSB)
Multiples of 133
(for 133MHz FSB)
CPU Frequency Multiple (when CPU Speed is set to [Manual])
This field is for unlocked processors only. If your processor frequency
multiple is detected locked, you cannot access this field. This field sets the
frequency multiple between the CPU’s internal frequency (CPU speed) and
external frequency. Set this field in conjunction with CPU/PCI Frequency
(MHz) to match the speed of the CPU. Configuration options: [2.0x] [2.5x]
[3.0x]...[7.5x] [8.0x]
CPU/PCI Frequency (MHz) (when CPU Speed is set to [Manual])
This feature tells the clock generator what frequency to send to the system
bus and PCI bus. The bus frequency (external frequency) multiplied by the
bus multiple equals the CPU speed.
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CPU/Memory Frequency Ratio [Auto]
This field determines whether the memory clock frequency is set in
synchronous or asynchronous mode with respect to the system frequency.
The options in the popup menu vary according to the CPU/PCI Frequency
(MHz). Configuration options: [Auto] [1:1] [2:3] [4:3]
CPU Vcore Setting [Auto]
When set to [Auto], When this field is set to [Manual], you can manually
select the core voltage supplied to the CPU (see next item). It is recommended
however that you keep the default setting [Auto] to allow the system to
automatically determine the appropriate CPU core voltage.
CPU Vcore [3.50V]
In JumperFree mode, this field displays the core voltage supplied to the
CPU. When the CPU Vcore Setting field is set to [Manual], this field allows
you to select a specific CPU Vcore voltage. Refer to the CPU documentation
before setting this field. A very high Vcore voltage may damage the CPU.
This field is not accessible when the CPU Vcore Setting field is set to [Auto].
Configuration options: [1.30V] [1.35V] [1.40V]...[3.30V] [3.40V] 3.50V]
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 Level 1 and Level 2 built-in cache.
Configuration options: [Disabled] [Enabled]
CPU Level 2 Cache ECC Check [Disabled]
This function controls the ECC capability in the CPU level 2 cache.
Configuration options: [Disabled] [Enabled]
Processor Serial Number [Disabled]
The Processor Serial Number is a unique number added to every Pentium
III processor to help verify the identity of the user across the Internet. Set
this field to [Enabled] when you need increased security for doing business
online or e-commerce. Otherwise, leave it to its default setting [Disabled]
for greater anonymity when surfing the Internet.
NOTE: This field is available only when a Pentium III processor is
installed in the system.
BIOS Update [Enabled]
This field functions as an update loader integrated into the BIOS to supply
the processor with the required data. When set to [Enabled], the BIOS loads
the update on all processors during system bootup. Configuration options:
[Disabled] [Enabled]
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4. BIOS SETUP
PS/2 Mouse Function Control [Auto]
The default setting [Auto] allows the system to detect a PS/2 mouse at startup.
If a mouse is detected, the BIOS assigns IRQ12 to the PS/2 mouse. Otherwise,
IRQ12 can be used for expansion cards. When you set this field to [Enabled],
BIOS always reserves IRQ12, whether or not a PS/2 mouse is detected at
startup. 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 is enabled. If not detected, the USB controller is disabled.
When you set this field to [Disabled], the USB controller is disabled whether
you are using a USB device or not. 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 to the
default setting [Disabled]. Configuration options: [Disabled] [Enabled]
Notes for JumperFree Mode
CPU Upgrade/Reinstallation
To ensure that the system can enter BIOS Setup after changing the processor,
the system starts up running at a bus speed of 66MHz and a fail-safe CPU
internal frequency (4x66MHz for the Intel Coppermine processor or
2x66MHz for non-Coppermine processors). Then it automatically takes you
to the Advanced menu with a popup menu of all the possible CPU internal
frequencies. Refer to the figures on the next page for illustrations of the
configuration options for CPUs with locked and unlocked frequency
multiplier.
System Hangup
If the system crashes or hangs due to improper frequency settings, power
OFF the system and restart. The system starts up in safe mode running at a
bus speed of 66MHz and enters the BIOS Setup.
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For processors with locked frequency multiplier
For processors with unlocked frequency multiplier
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4. BIOS SETUP
4.4.1 Chip Configuration
SDRAM Configuration [By SPD]
This sets the optimal timings for items 2–5, depending on the memory
modules that you are using. The default setting is [By SPD], which configures
items 2–5 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: [User Defined] [7ns (143MHz)] [8ns
(125MHz)] [By SPD]
SDRAM CAS Latency [2.5T(DDR) / 3T(SDR)]
This controls the latency between the SDRAM read command and the
time that the data actually becomes available. NOTE: This field appears
only when you set the SDRAM Configuration to [User Defined].
SDRAM RAS to CAS Delay [3T]
This controls the latency between the SDRAM active command and the
read/write command. NOTE: This field appears only when you set the
SDRAM Configuration to [User Defined].
SDRAM RAS Precharge Time [3T]
This controls the idle clocks after issuing a precharge command to the
SDRAM. NOTE: This field appears only when you set the SDRAM
Configuration to [User Defined].
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SDRAM Cycle Time tRAS [7T]
This feature controls the number of SDRAM clocks used for SDRAM
parameter tRAS. tRAS specifies the minimum clocks required between
active command and precharge command. NOTE: To make changes to
this field, set the SDRAM Configuration field to [User Defined].
Graphics Aperture Size [128MB]
This feature allows you to select the size of mapped memory forAGP graphic
data. Configuration options: [1MB] [4MB] [8MB] [16MB] [32MB] [64MB]
[128MB] [256MB]
AGP Capability [4X Mode]
This motherboard supports the AGP 4x interface that transfers video data at
1066MB/s. AGP 4x is backward-compatible, so you may leave the default
[4X Mode] on even if you are using an AGP 1x or 2x video card. When set
to [1X Mode], the AGP interface only provides a peak data throughput of
266MB/s even if you are using anAGP 2x/4x card. When set to [2X Mode],
theAGP interface only provides a peak data throughput of 533MB/s even if
you are using anAGP4x card. Configuration options: [1X Mode] [2X Mode]
[4X Mode]
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 does not support this feature, otherwise
the system may not boot. Configuration options: [UC] [USWC]
Memory Hole At 15M-16M [Disabled]
This field allows you to reserve an address space for ISA expansion cards.
Setting the address space to a particular setting makes that memory space
unavailable to other system components. Expansion cards can only access
memory up to 16MB. Configuration options: [Disabled] [Enabled]
PCI 2.1 Latency Compliant [Disabled]
This field allows you to enable or disable the PCI 2.1 latency compliant
mode for the primary bus. Configuration options: [Disabled] [Enabled]
Delay Transaction [Disabled]
When set to [Enabled], this feature frees the PCI bus when the CPU is
accessing 8-bit ISA cards. This process normally consumes about 50-60
PCI Clocks without PCI delayed transaction. Set this field to [Disabled]
when using ISA cards that are not PCI 2.1 compliant. Configuration options:
[Enabled] [Disabled]
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4. BIOS SETUP
Optimize Performance [Enabled]
This field enables you to optimize the performance of the system.
Configuration options: [Disabled] [Enabled]
AGP Fast Write [Enabled]
Configuration options: [Disabled] [Enabled]
Onboard PCI IDE Enable [Both]
This field allows tou to enable either the primary IDE channel or secondary
IDE channel, or both. You can also set both channels to [Disabled].
Configuration options: [Both] [Primary] [Secondary] [Disabled]
Onboard PCI Audio [Enabled]
This field allows you to enable or disable the onboard PCI audio controller.
Configuration options: [Enabled] [Auto Detect] [Disabled]
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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]
When set to [Read Only], this field allows reads from floppy disks, but does
not allow copying of files from the hard disk to floppy disks. This is a form
of file security. When set to [R/W], this field allows both reads and writes to
floppy disks. Configuration options: [R/W] [Read Only]
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]
Onboard IR Port [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 the 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 IrDA-Compliant Infrared Module Connector in 3.8 Connectors.
Configuration options: [Disabled] [Enabled]
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4. BIOS SETUP
Onboard Parallel Port [378H/IRQ7]
This field sets the address of the onboard parallel port connector. If you disable
this field, the Parallel Port Mode and ECP DMA Select configurations are
not available. Configuration options: [Disabled] [378H/IRQ7] [278H/IRQ5]
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] [EPP] [ECP] [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. Configuration options: [1] [3] [Disabled]
Onboard AC97 Modem Controller [Auto]
[Auto] allows the BIOS to detect whether you are using any modem device.
If a modem is detected, the onboard modem controller is enabled; if no
modem is detected, the controller is disabled. If there are conflicts with the
onboard modem controller, set the appropriate field to [Disabled].
Configuration options: [Disabled] [Auto]
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4. BIOS SETUP
4.4.3 PCI Configuration
Slot 1, Slot 2, Slot 3, Slot 4, Slot 5 IRQ [Auto]
These fields automatically assign the IRQ for each PCI slot. The default
setting for each field is [Auto], which utilizes auto-routing to determine
IRQ assignments. Configuration options: [Auto] [NA] [3] [4] [5] [7] [9]
[10] [11] [12] [14] [15]
PCI/VGA Palette Snoop [Disabled]
Some non-standard VGA cards, such as graphics accelerators or MPEG
video cards, may not show colors properly. Setting this field to [Enabled]
corrects this problem. If you are using standard VGA cards, leave this
field to the default setting [Disabled]. Configuration options: [Disabled]
[Enabled]
PCI Latency Timer [32]
Leave this field to the default setting [32] for best performance and stability.
SYMBIOS SCSI BIOS [Auto]
[Auto] allows the BIOS to detect whether you have a SYMBIOS SCSI card.
If such card is detected, the SCSI BIOS is enabled. Otherwise, the onboard
SCSI BIOS is disabled.
The setting [Disabled] disables the onboard SYMBIOS SCSI BIOS so that
the BIOS on an add-on SYMBIOS SCSI card can be used. If the SYMBIOS
SCSI card does not have a BIOS, the Symbios SCSI card will not work.
Configuration options: [Auto] [Disabled]
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4. BIOS SETUP
USB Function [Enabled]
Set this field to [Enabled] if you want to use Universal Serial Bus (USB) devices.
Configuration options: [Disabled] [Enabled]
Primary VGA BIOS [PCI VGA Card]
This field allows you to select the primary graphics card. Configuration
options: [PCI VGA Card] [AGP VGA Card]
PCI IRQ Resource Exclusion
IRQ XX Used By ISA [No/ICU]
These fields indicate whether or not the displayed IRQ for each field is
being used by a legacy (non-PnP) ISA card. The setting [No/ICU] for an
IRQ field indicates that you are using the ISA Configuration Utility (ICU),
and that this particular IRQ is NOT required by a legacy ISA card. Set the
IRQ field to [Yes] if you install a legacy ISAcard that requires a unique IRQ
and you are NOT using ICU. Configuration options: [No/ICU] [Yes]
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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 Defined]
This field must be enabled to activate the automatic power saving features. When
set to [Disabled], the power management features do not function regardless of the
other settings on this menu. The [User Defined] option allows you to make your
own selections in the Power menu. When set to [Max Saving], system power
conserved to its greatest amount. The Suspend Mode field is then be set to a
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] deactivates the power saving features, [User Defined]
allows you to set power saving options according to your preference. Configuration
options: [User Defined] [Disabled] [Min Saving] [Max Saving]
IMPORTANT: You should install the Advanced Power Management (APM)
utility to keep the system time updated even when the computer enters suspend
mode. In DOS environment, you need to add the statement,
DEVICE=C:\DOS\POWER.EXE, to the CONFIG.SYS file. In Windows 3.x and
Windows 95, you need to install Windows with the APM feature. In Windows
98 or later, APM is automatically installed as indicated by a battery and power
cord icon labeled “Power Management” in the “Control Panel.” Select the item
“Advanced” in the Power Management Properties dialog box.
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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 scanning. 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]
Suspend Mode [Disabled]
Sets the time period before the system goes into suspend mode.
Configuration options: [Disabled] [30 Sec] [1 Min] [2 Min]...[1 Hour]
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]
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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]
Wake/PWR Up On Ext. Modem [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. Turning 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]
Power Up On PCI Card [Disabled]
This feature allows your computer to be booted from another computer via
a network or PCI modem by sending a wake-up frame or signal.
Configuration options: [Disabled] [Enabled]
IMPORTANT: This feature requires a network interface with Wake-On-LAN and
an ATX power supply with at least 720mA +5V standby power.
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4. BIOS SETUP
Power On By PS/2 Keyboard [Space Bar]
This parameter allows you to use specific keys on the keyboard to power up
the computer. Configuration options: [Disabled] [Space Bar] [Ctrl-Esc]
[Power Key]
Power On By PS/2 Mouse [Disabled]
Set this field to [Enabled] if you want to use your PS/2 mouse to power up
the computer. This feature requires an ATX power supply that can supply at
least 300mA on the +5VSB lead. The default is [Disabled] because not all
computer have the appropriate power supply. Configuration options:
[Disabled] [Enabled]
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]. Configuration options:
[Disabled] [Everyday] [By Date]
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4. BIOS SETUP
4.5.2 Hardware Monitor
MB Temperature [xxxC/xxxF]
CPU Temperature [xxxC/xxxF]
POWER Temperature [xxxC/xxxF]
The onboard hardware monitor automatically detects the MB (motherboard),
CPU, and JTPWR (power supply) temperatures.
CPU Fan Speed [xxxxRPM]
Power Fan Speed [xxxxRPM]
Chassis Fan Speed [N/A]
The onboard hardware monitor automatically detects the speeds of the CPU
fan, chassis fan, and chassis fan measured in rotations per minute (RPM).
VCORE1/VCORE2 Voltage
+3.3V Voltage, +5V Voltage, +12V Voltage, +3VSB Voltage,
+5VSB Voltage
The onboard hardware monitor automatically detects the voltage output
through the onboard voltage regulators.
NOTE: If any of the monitored items is out of range, the following error
message appears: “Hardware Monitor found an error. Enter Power setup
menu for details”. You will then be prompted to “Press F1 to continue or
DEL to enter SETUP”.
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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 system
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]
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.
Other Boot Device Select [INT18 Device (Network)]
Configuration options: [Disabled] [SCSI Boot Device] [INT18 Device
(Network)]
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4. BIOS SETUP
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]
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]
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4. BIOS SETUP
4.7 Exit Menu
When you have made all of your selections from the various menus in the
Setup program, save your changes and exit Setup. Select Exit from the menu
bar to display the following menu:
NOTE: Pressing <Esc> does not immediately exit this menu. Select one of
the 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. When you select this option, a confirmation
window appears. Select [Yes] to save changes and exit.
NOTE: If you attempt to exit the Setup program without saving your
changes, the program prompts you with a message asking if you want to
save your changes before exiting. Pressing <Enter> saves the changes while
exiting.
Exit Discarding Changes
Select this option only if you do not want to save the changes that you
made to the Setup program. If you made changes to fields other than system
date, system time, and password, the BIOS asks for a confirmation before
exiting.
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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 you select this option or if you press <F5>, a
confirmation window appears. Select [Yes] to load default values. Select
Exit Saving Changes or make other changes before saving the values to
the non-volatile RAM.
Discard Changes
This option allows you to discard the selections you made and restore the
previously saved values.After selecting this option, a confirmation appears.
Select [Yes] 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 further changes. After you select
this option, a confirmation window appears. Select [Yes] to save any changes
to the non-volatile RAM.
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5. SOFTWARE SETUP
5.1 Operating Systems
You should always use the latest operating system and updates when using new
hardware to ensure full compliance. You may use any version of Windows 98/2000/
ME, 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.
5.1.1 Windows 98 First Time Installation
When you start Windows for the first time after the installation of the motherboard,
Windows 98 detects the onboard audio and video chips and may attempt to install a
driver from its system registry. When prompted to restart, select No and then follow
the normal setup procedures on the screen.
5.2 CUA266 Motherboard Support CD
To begin using the support CD, insert it into the CD-ROM drive. The support
installation menu should appear. If the menu does not appear, double-click or run
D:\ASSETUP.EXE (assuming that your CD-ROM drive is drive D).
NOTE: The support CD contents are subject to change at any time without notice.
5.2.1 Installation Menus
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5. SOFTWARE SETUP
5.2.2 Applications
•
•
ALi Integrated Driver: Installs the ALi integrated drivers.
C-Media PCIAudio Driver andApplication: Installs the C-Media audio driver
and related applications.
•
•
ASUS PC Probe V2.12.09: Installs a smart utility that can monitor your computer
fan, temperature, and voltages.
ASUS Update V3.27.07: Installs theASUS Update program. This program allows
you download the latest version of Flash BIOS from the ASUS website. Before
using ASUS Update, make sure that you have a network card and a TCP/IP
network driver.
•
•
Microsoft DirectX 8.0 Driver: Installs the Microsoft DirectX 8.0 driver.
PC-cillin 2000 V7.0: Installs the PC-cillin virus protection software. View the
online help for more information.
•
ADOBE Acrobat Reader V4.0: Installs the Adobe Acrobat Reader software
necessary to view user’s manuals in PDF format.
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5. SOFTWARE SETUP
•
Install Cyberlink Video and Audio Applications: Installs the Cyberlink
PowerPlayer SE 5.0, Cyberlink PowerDVD Trial 2.55, and Cyberlink VideoLive
Mail 3.10.
•
•
ASUS Screen Saver: Installs the ASUS screen saver.
Show Motherboard Information: Allows you to view information about the
motherboard, such as product name, BIOS version, and CPU.
NOTE: The following items are on the second menu screen. To see the
items, click on the arrow (pointing to the right) on the lower right corner of
the screen. To return to the first menu screen, click on the arrow (pointing to
the left) on the lower right corner of the second screen.
•
•
Browse Support CD: Allows you to view the contents of the support CD.
ReadMe: Allows you to view a list of the files included in the support CD and
ASUS contact information.
•
Exit: Exits the CD installation menu.
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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 temperatures. 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
WhenASUS 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.
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
appears on the taskbar system tray indicating that ASUS
PC Probe is running. Clicking the icon allows you to see the status of your PC.
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6. SOFTWARE REFERENCE
6.1.2 Using ASUS PC Probe
Monitoring
Monitor Summary
Shows a summary of the
items being monitored.
Temperature Monitor
Shows the PC temperature
(for supported processors
only).
Temperature Warning
threshold adjustment
(Move the slider up to increase the
threshold level or down to decrease
the threshold level)
Fan Monitor
Shows the PC 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 voltages.
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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.
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.
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6. SOFTWARE REFERENCE
Information
Hard Drives
Shows the used and free space of
the PC’s hard disk drives and the
file allocation table or file system
used.
Memory
Shows the PC memory load,
memory usage, and paging file
usage.
Device Summary
Shows a summary of devices present
in your PC.
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6. SOFTWARE REFERENCE
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. To 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 brings 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
appears.
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7. APPENDIX
7.1 Glossary
1394
1394 is the IEEE designation for the high performance serial bus at 12.5, 25 or
50MBytes/sec speeds. 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 ver-
sion is the integration of I/O connectivity at the back panel of personal computers
using a low-cost, scalable, high-speed serial interface. The 1394 standard also pro-
vides new services such as live connect/disconnect capability for external devices
including disk drives, printers and hand-held peripherals such as scanners and cam-
eras. This is a new standard to complement the slower USB interface and to compete
with the more expensive SCSI interface.
AC’97 (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 in-
tegrate the components necessary to support next-generation auto-intensive PC ap-
plications such as DVD, 3-D multiplayer gaming and interactive music. The speci-
fication 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)
TheACPI specification defines a cross-platform interface designed to support many
operating systems. ACPI defines a flexible and abstract hardware interface that pro-
vides a standard way to integrate power management features throughout a PC sys-
tem, including hardware, operating system and application software. This enables
the system to automatically turn ON and OFF peripherals such as CD-ROMs, net-
work 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 offer the necessary bandwidth and latency to perform
texture mapping directly from system memory.
Bus
Bus Frequency
Bandwidth
Data Transfer Rate
PCI
AGP 1X
AGP 2X
33MHz
66MHz
66MHz
33MHz
66MHz
133MHz
133MByte/sec
266MByte/sec
512MByte/sec
AGP 4X
66MHz
266MHz
1024MByte/sec
BIOS (Basic Input/Output System)
BIOS is a set of routines that affect how the computer transfers data between com-
puter components, such as memory, disks, and the display adapter. The BIOS in-
structions 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.
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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 Win-
dows 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.
COM Port
COM is a logical device name used by to designate the computer serial ports. Point-
ing 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 transac-
tions. Concurrent PCI provides increased bandwidth, reduced system latencies, im-
proves video and audio performance, and improves processing of host based appli-
cations.
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 oper-
ate, 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)
There are several different types of DRAM such as, EDO DRAM (Extended Data
Output DRAM), SDRAM (Synchronous DRAM), and RDRAM (Rambus DRAM).
Flash ROM
The flash ROM is designed to be a resident program and can be updated by a spe-
cific programming method. Normally, the flash ROM is used for system BIOS which
initiates hardware devices and sets up necessary parameters for the OS. Since the
contents of flash ROM can be modified, users are able to update the BIOS by them-
selves.
IDE (Integrated Drive Electronics)
IDE devices integrate the drive control circuitry directly on the drive itself, elimi-
nating the need for a separate adapter card (in the case for SCSI devices). UltraDMA/
33 IDE devices can achieve up to 33MB/Sec transfer.
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7. APPENDIX
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 based on a technique called Single Instruction, Multiple
Data (SIMD), which is built into the new Intel Pentium PP/MT (P55C) and Pentium
II (Klamath) CPU as well as other x86-compatible microprocessors. The MMX in-
structions are designed to accelerate multimedia and communications applications,
such as 3D video, 3D sound, video conference.
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 initia-
tive 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
SDRAM is Intel's goal is to ensure that memory subsystems continue to support
evolving platform requirements and to assure that memory does not become a bottle-
neck to system performance. It is especially important to ensure that the PC memory
roadmap evolves together with the performance roadmaps for the processors, I/O
and graphics.
PCI Bus (Peripheral Component Interconnect Local Bus)
PCI bus is a specification that defines a 32-bit data bus interface. PCI is a standard
widely used by expansion card manufacturers.
PCI Bus Master
The PCI Bus Master can perform data transfer without local CPU help and further-
more, the CPU can be treated as one of the Bus Masters. PCI 2.1 supports concur-
rent PCI operation to allow the local CPU and bus master to work simultaneously.
Plug and Play BIOS
The ISA bus architecture requires the allocation of memory and I/O address, DMA
channels and interrupt levels among multiple ISA cards. However, configuration of
ISA cards is typically done with jumpers that change the decode maps for memory
and I/O space and steer the DMA and interrupt signals to different pins on the bus.
Further, system configuration files may need to be updated to reflect these changes.
Users typically resolve sharing conflicts by referring to documentation provided by
each manufacturer. For the average user, this configuration process can be unreli-
able and frustrating. Plug and play (PnP) BIOS eliminates the ISA add-on card hard-
ware conflict problem. The PnP BIOS uses a memory block to define and remember
each card's configuration, which allows the user to change the card's IRQs and DMA
in BIOS either automatically or manually.
POST (Power On Self Test)
When you turn ON the computer, it will first run through the POST, a series of
software-controlled diagnostic tests. The POST checks system memory, the mother-
board circuitry, the display, the keyboard, the diskette drive, and other I/O devices.
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 control-
lers, and graphics/video ICs.
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7. APPENDIX
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 repro-
grammed 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 de-
vices. The standard started from 10MBytes/sec to 160MBytes/sec available today.
SDRAM (Synchronous DRAM)
The SDRAM features a fully synchronous operation referenced to a positive edge
clock whereby all operations are synchronized at a clock input which enables the
coexistence of high performance and a simple user interface. SDRAM takes memory
access away from the CPU's control; internal registers in the chips accept the re-
quest, and let the CPU do something else while the data requested is assembled for
the next time the CPU talks to the memory. As they work on their own clock cycle,
the rest of the system can be clocked faster. There is a version optimized for video
cards, and main memory for motherboards.
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 infor-
mation 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.
SSE (Streaming SIMD Extensions)
A set of new instructions added to existing architectures that enables a better visual
experience with an accelerated 3D geometry pipeline and support for new applica-
tions, such as real-time video encoding and speech recognition.
System Disk
A system disk contains the core file of an operating system and is used to boot up the
operating system.
UltraDMA
Ultra DMA/33 is a "synchronous DMA" protocol designed by Intel. This function is
included into Intel's PIIX4 chipset. The traditional IDE transfer only uses one edge
of the data stroke as the data transfer. Ultra DMA/33 uses both edges of data strobe
when the data is transferred. Hence, the data transfer rate is double of the PIO mode
4 or DMA mode 2 (16.6MB/s x2 = 33MB/s) on ATA-2 devices.
Ultra ATA/66, also known as Ultra DMA/66, is an extension of current Ultra ATA/
33 interface. This new high-speed interface has doubled the Ultra ATA/33 burst data
transfer rate to 66.6 Mbytes/sec and maximized disk performance under current PCI
local bus environment
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 synchro-
nous 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
The computer automatically wakes up upon receiving a wake-up packet through a
Network interface when it is under power soft-off, suspend or sleep mode.
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INDEX
A
Chip Configuration 60
Connectors
Accelerated Graphics Port 8
AGP Pro Slot 27, 28
AGP. See Accelerated Graphics Port
Audio 31
Chassis Fan 35
CPU Fan 35
ASUS PC Probe 81
Starting 81
External 29
Floppy Disk Drive 32, 39
Game/MIDI 30
IDE 33
Task Bar Icon 86
Using 81, 82
ATAPI CD-ROM 72
Infrared Module 36
Internal 32
Internal Audio 39
Panel 41
Parallel Port 30
Power Supply Thermal Sensor 41
PS/2 Keyboard 29
PS/2 Mouse 29
Serial Port 30
SMBus 35, 37
USB 29
Wake-On-LAN 34
Wake-On-Ring 34
B
BIOS
Advanced Menu 56
Beep Codes 42
Boot Menu 72
Boot Sequence 72
Exit Menu 74
Language 55
Legend Bar 48
Main Menu 50
Menu Bar 48
Power Menu 67
Setup Defaults, loading 75
Setup Program 47
Smart BIOS 9
CPU. See Central Processing Unit
D
DIMMs. See Dual Inline Memory
Sub-menu launching 49
Updating 43
Modules
DIP Switches 18
Boot Device
Selection 72
Dual Inline Memory Modules 21
DIMM Sockets 22
Boot Up NumLock Status 54
Boot Virus Detection 73
E
Expansion Cards
Assigning IRQs 26
Installing 25
C
Central Processing Unit (CPU) 23
External Frequency 19
Installation 24
Expansion Slots 9
F
Level 1/Level 2 Cache 57
Serial Number 57
Floppy 3 Mode 50
Floppy Disk Drive Connector 32, 39
Speed 56
Upgrade/Reinstallation 58
ZIF Socket 23
Chassis Intrusion 36
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91
INDEX
H
L
Hard Disk Drives (HDDs)
CHS Capacity 53
Cylinders 52
Legacy Diskette 50
M
Heads 53
Memory Hole 62
Motherboard
LBA Capacity 53
Primary/Secondary Master 51
Primary/Secondary Slave 51
Sectors 52
Translation Method 52
Types 51
Components 12, 13
IRQ Table 26
Layout 14
Settings 17
Specifications 8
Support CD 77
Hardware Monitor 71
Hardware Setup
Procedure 17
Headers
USB 35
Mouse
Connector 29
Multi-Sector Transfers 53
O
I
Operating Systems 77
IDE Activity LED 32
IDE Connectors 33
IDE Hard Disks. See Hard Disk Drives
(HDDs)
Infrared Module Connector 36
P
Parallel Port 64
Modes 64
Parallel Port Connector 30
Interrupt Request (IRQ)
Password
Standard Assignments 26
If You Forget 55
Notes 55
Supervisor 55
User 55
J
JumperFree Mode
Notes for 58
JumperFree™ Mode 18
PCI Configuration 65
PCI Latency Timer 65
PCI/VGA Palette Snoop 65
PIO Mode 53
Plug & Play O/S 73
Ports. See Connectors
Power Management 67
Power On Self Test 73
Processor 8
K
Keyboard
Auto-Repeat Delay 54
Auto-Repeat Rate 54
Connector 29
Features 54
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Processor Serial Number 57
PS/2 Keyboard 29
U
UART2 63
PS/2 Mouse 29
Ultra DMA Mode 53
Function Control 57
Universal Serial Bus (USB) 29
Headers 35
R
Ports 29
USB Legacy Support 58
RTC RAM
Clearing 20
Using
S
ASUS PC Probe 81
USWC 61
SCSI BIOS 65
V
SDRAM
Active to Precharge Time 61
CAS Latency 60
Video Memory 62
Configuration 60
W
RAS Precharge Time 60
RAS to CAS Delay 60
Read Around Write 61
Wake-On-LAN
Connector 34
Serial Ports 63
Connectors 30
Wake-On-Ring
Connector 34
SMART Monitoring 53
Windows 98
SMBus Connector 35, 37
First Time Installation 77
Support CD 77
Z
Applications 78
Installation Menu 77
System Chipset 8
System Date 50
System Hangup 58
ZIF Socket 23
System Memory
DIMMs 21
Installation 22
SDRAM 21
System Start Up 42
System Time 50
T
Thermal Sensor Connector 36, 41
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