Asus P2/370A User manual

Quick Installation Chart
For your convenience, this chart lists all the CPUs supported by P2/370A & P2/370A-Z and their
corresponding jumper setting.
CPU Model Ratio JF0 JF1 JF2 JF3
300/100 200/66 3.0x 1-2 2-3 1-2 1-2
350/100 233/66 3.5x 1-2 2-3 2-3 1-2
400/100 266/66 4.0x 2-3 1-2 1-2 1-2
450/100 300/66 4.5x 2-3 1-2 2-3 1-2
500/100 333/66 5.0x 2-3 2-3 1-2 1-2
550/100 366/66 5.5x 2-3 2-3 2-3 1-2
600/100 400/66 6.0x 1-2 1-2 1-2 2-3
650/100 433/66 6.5x 1-2 1-2 2-3 2-3
700/100 466/66 7.0x 1-2 2-3 1-2 2-3
750/100 500/66 7.5x 1-2 2-3 2-3 2-3
800/100 533/66 8.0x 2-3 1-2 1-2 2-3
The Ratio of some latest CPUs are fixed by Intel, such as Celeron 366, 400... etc. You can ignore the four
jumpers if you have this CPU on board and it will be auto detected by motherboard. Please check with the
CPU manufacturer or vendor for the CPU Ratio information.
*** The CPU CLK over specification operation is optional, please see session 3.4.15 for more information.

P2/370A or P2/370A-Z
Motherboard
User’s Manual
Product Name: P2/370A or P2/370A-Z
Manual Revision: English, 1.1
Trademarks
Intel, Socket 370, Celeron, Pentium II and Pentium III are trademarks of Intel Corporation
Award is a trademark of Award Software International Inc.
MS-DOS, Windows 95, Windows 98 and Windows NT are registered trademarks of Microsoft Corporation
Novell is a trademark of Novell Corporation
Sound Blaster SB16 is a trademark of Creative Technology
ESS and Solo-1 are trademarks of ESS Technology, Inc.
All other brand and product names are trademarks or registered trademarks of their respective companies.
Table of Contents
Chapter 1. Introduction
1.1 Product Overview
1.2 Features
1.3 Specifications
1.4 Content
1.5 System Board Layout

Chapter 2. Hardware Setup
2.1 Installation Procedure
2.1.1 Jumper Settings
2.1.2 Enable/Disable Sound
2.1.3 Clearing the CMOS
2.1.4 CPU Voltage Setting
2.1.5 CPU Frequency Selection
2.1.6 CPU FSB Frequency Setting
2.2 Installation of CPU
2.2.1 For Celeron, Pentium II & III CPU
2.2.2 For Socket 370 CPU
2.3 Installation of Memory
2.3.1 Installation of 168-pin DIMM
2.3.2 Removal of 168-pin DIMM
2.3.3 Memory Configuration
2.4 I/O Connections/Panel Connections
2.4.1 ATX Power Connector
2.4.2 CPU Fan Connector
2.4.3 Infrared Connector
2.4.4 Wake-up on LAN Connector
2.4.5 Creative’s SB_LINK Sound Connector
2.4.6 Floppy Disk Drive Connector
2.4.7 Primary/Secondary IDE Connector
2.4.8 PS/2 Mouse Port
2.4.9 PS/2 Keyboard Connector
2.4.10 Serial Port
2.4.11 Printer Port
2.4.12 USB Connectors
2.4.13 Line Out Connector (optional)
2.4.14 Line In Connector (optional)
2.4.15 Microphone In Connector (optional)
2.4.16 Game/MIDI Port (optional)
2.4.17 ATAPI IDE/SONY Audio (optional)
2.4.18 Mitsumi Audio (optional)
2.4.19 Panel Connection
Chapter 3. BIOS Setup
3.1 CMOS Setup Utility
3.2 Standard CMOS Setup
3.3 BIOS Features Setup
3.4 Chipset Features Setup
3.5 Power Management Setup
3.6 PNP/PCI Configuration Setup
3.7 Integrated Peripherals
3.8 Load BIOS Defaults
3.9 Load Setup Defaults
3.10 Supervisor/User Password
3.11 IDE HDD Auto Detection
3.12 Exit CMOS Setup Utility
Chapter 4. Sound Driver Installation
4.1 Windows 95 Installation
4.2 Windows 98 Installation

4.3 Windows NT 4.0 Installation
4.4 AudioRack32 Installation
Chapter 1. Introduction
1.1 Product Overview
Thank you for purchasing the P2/370A & P2/370A-Z motherboard. This motherboard utilizes Intel's latest
technology, namely 440BX ( 440ZX ) AGPset chipset. We have conducted a motherboard compatibility test
with a variety of hardware and software, such as CPUs, memory, display cards, CD ROMs, Novell, MS
Office ....etc and has passed NSTL Year 2000 certification test program.
We have set high standards on our quality control, with absolute confidence, we believe this product is the
wisest choice.
This manual is composed of four sections. The first section is the introduction of this motherboard, and the
second section explains the proper procedure to setup the motherboard, the third section provides
information on how to setup the CMOS. The last section states the sound driver installation .
1.2 Features
Support Desktop Management Interface (DMI) through BIOS.
Support Accelerated Graphics Port (AGP) cards for high performance.
Modem Remote Ring On.
Wake up on LAN.
RTC Wake Up Alarm: Program the date/time to wake up your system.
Support NCR SCSI BIOS.
Support Advanced Configuration Power Interface (ACPI).
BIOS Green feature function, and 2Mbits “Plug & Play” Flash ROM.
ESS 1938S Solo-1 PCI Sound on board (optional).
1.3 Specifications
CPU - Supports Intel Celeron, Pentium II, Pentium III with 66/100 FSB Processors
Chipset - Intel 440BX AGPset chipset for P2/370A ( Intel 440ZX AGPset chipset for
P2/370A-Z )
DIMM - Supports 3.3V EDO or SDRAM in 3 168-pin banks,each bank consists of
1x168-pin 64-bit DIMM socket, which can support memory sizes of
8/16/32/64/128/256 MB modules. (P2/370A-Z has 2x168-pin socket only )
- Supports up to a maximum of 768 MB system memory( maximum system
memory of P2/370A-Z is 512MB )
IDE - Dual channel PIO and PCI Bus Master IDE ports support up to 4 EIDE devices
for HDD or CD-ROM
- Supports PIO Mode 4 with data transfer rate up to 14 MB/Sec
- Supports Ultra DMA 33 (UDMA) with data transfer rateup to 33 MB/Sec
BIOS - 2Mbits Award BIOS V.4.51 with built-in Anti-Virus, DMI support, and green
function (Plug-and-Play BIOS)
- Supports CD-ROM, SCSI, and LS120/ZIP boot up
- Support NCR SCSI BIOS.
I/O Devices - One FDD control port supports two of the 5.25" or 3.5" floppy drives up to 2.88
MB.
- Two high-speed 16550 UART compatible serial ports
- One parallel ports with ECP/ EPP compatibility.
- One PS/2 mouse port
- One PS/2 Keyboard connector
IR Port - One IrDA/ASKIR compatible Infrared interface port. (Cable optional)
USB Ports - Two Universal Serial Bus (USB) ports support up to 127 peripheral devices.
Sound (optional) - ESS Solo-1 ES1938S PCI Sound Chip
- Built-in 3D audio effects processor

- Full native DOS games compatibility, via three technologies TDMA, DDMA &
PC/PCI
- High quality ESFM music synthesizer
- Dynamic range (SNR) over 80db
- Record, compress and playback voice, sound and music
- Full-Duplex operation for simultaneous record and playback
- Stereo inputs from line in, Auxiliary A (CD audio) and Auxiliary B and a mono
input from microphone
- MPU-401 interface for wavetable synthesizer and MIDI devices
- Integrated dual game port
- Support PC games and application for Sound Blaster And Sound Blaster pro
- Support Microsoft Windows Sound System
- Meet PC 97/98 and WHQL specifications
- Sample record/playback rates up to 48KHz
ATX Power - Supports Modem remote Ring-On function
- Supports software power off function
- Supports RTC Wake-Up.
- Supports Wake up on LAN.
Expansion Slots - Four 32-bit PCI expansion slots
- One 16-bit ISA expansion slot
- One 32-bit AGP expansion slot
Others - Supports Creative’s Sound Blaster 16 compatibility for real-mode DOS games.
Operating System - Supports Windows 95/98, Windows NT, MS-DOS V. 6.22, OS/2, Novell, Unix,
SCO UNIX.....
Dimension - 305 mm x 170 mm ATX Form factor
1.4 Content
The motherboard box contains the following items:
One Motherboard
One IDE Ribbon Cable
One Floppy Ribbon Cable
One Retention mechanism
One Driver CD
User's Manual & Quick Installation Chart
1.5 MotherBoard Layout

Notice:
If the product name is P2/370A-Z the part number of chipset is FW82443ZX instead of FW82443BX.
P2/370A-Z supports M1 & M2 DIMM socket only.
Chapter 2. Hardware Setup

2.1 Installation Procedure
1. Jumper settings
2. Installation of CPU
3. Installation of Memory
4. I/O Connections & Panel Connections
2.1.1 Jumper Settings
In this manual , (1-2) represents the first and second pins of the jumper. (2-3) represents the second
and third pins of the jumper. On the motherboard, you will see two sets of jumpers with different
color jumper caps:
Yellow Jumper Caps : Sets the Function of Flash CMOS
JRTC
Green Jumper Caps : Sets the type and speed of CPU
JF0, JF1, JF2, JF3
Red Jumper Caps : Sets the FSB frequency of CPU JFSB
Enable/Disable Sound function JSND (optional)
WARNING: Electronic parts are Static sensitive. To prevent damage to the computer and its parts
please take the following measures.
-Work on a surface such as concrete, linoleum or hard wood floor.
-Ground your self with either a properly installed grounding strap or by touching a major electrical
appliance long enough to discharge the static.
2.1.2 Enable/Disable Sound (JSND : Red Jumper Cap) (The Sound function and jumper are optional)
This jumper lets you to enable or disable the sound function.
1-2 : Enable Sound function (Default Setting)
2-3 : Disable Sound function
2.1.3 Clearing the CMOS (Yellow Jumper Caps)
JRTC: CMOS Function Selection
1-2 : Clear data
2-3 : Normal Operation (Default Setting)
How to Clear the CMOS Setting
1. Turn off the power.
2. Remove ATX power cable from connector J1.
3. Remove Yellow Jumper Cap from JRTC (2-3) and put on JRTC (1-2) to remove the CMOS setting.
4. Remove Yellow Jumper Cap from JRTC (1-2) and put on JRTC (2-3).
5. Connect ATX power cable back to connector J1.

6. Turn on the power.
7. While the system reboots, press <DEL> key to set the BIOS setup.
2.1.4 CPU Voltage Setting
The motherboard supports CPU VID function, the CPU core voltage is automatically detected, the
range is from 1.3V to 3.5V for Pentium II & III CPU and. the range is from 1.3V to 2.0V for Socket 370
& Celeron CPU
2.1.5 CPU Frequency Selection (Green Jumper Caps)
CPU Model Ratio JF0 JF1 JF2 JF3
300/100 200/66 3.0x 1-2 2-3 1-2 1-2
350/100 233/66 3.5x 1-2 2-3 2-3 1-2
400/100 266/66 4.0x 2-3 1-2 1-2 1-2
450/100 300/66 4.5x 2-3 1-2 2-3 1-2
500/100 333/66 5.0x 2-3 2-3 1-2 1-2
550/100 366/66 5.5x 2-3 2-3 2-3 1-2
600/100 400/66 6.0x 1-2 1-2 1-2 2-3
650/100 433/66 6.5x 1-2 1-2 2-3 2-3
700/100 466/66 7.0x 1-2 2-3 1-2 2-3
750/100 500/66 7.5x 1-2 2-3 2-3 2-3
800/100 533/66 8.0x 2-3 1-2 1-2 2-3
The Ratio of some latest CPUs are fixed by Intel, such as Celeron 366, 400… etc. You can ignore the
four jumpers if you have this CPU on board and it will be auto detected by motherboard. Please
check with the CPU manufacturer or vendor for the CPU Ratio information.
2.1.6 CPU FSB Frequency Setting (Red Jumper Caps)
The JFSB jumper provides three FSB frequency settings for the CPU. Auto Detect , 66MHz or
100MHz FSB frequency can be selected with this jumper. The 100MHz FSB frequency setting is over
specification operation for 66MHz FSB CPU . The over specification operation is not recommended.
2.2 Installation of CPU

2.2.1 For Celeron, Pentium II & III CPU
The motherboard provides a Single Edge Contact(SEC)slot for processor packaged in an SEC
cartridge. Follow these steps to install CPU:
Mount the Universal Retention Mechanism (URM) & Insert the CPU: ( The illustration is just for
reference )
This URM was designed to accommodate 3 types of CPU Form Factor. ( SECC, SECCII & SEPP ). For
Example : Pentium II & Celeron family.
Note : Please put a soft pad under M/B before the installation of URM.
Installation for SECC CPU :
1. Leave space below each mounting hole for the fastener to protrude through the hole.
2. Position URM on the M/B next to the slot1 connector.
3. Push down retainer pin into respective fastener to secure URM onto the M/B.
4. Push CPU into URM to contact with slot1.
5. Make sure latching portion of CPU engaged with windows ledge of URM.
Installation for SECC II or SEPP CPU :
1. Same as step (1) of SECC.
2. Same as step (2) of SECC.
3. Same as step (3) of SECC.
4. Same as step (4) of SECC.
5. Snap in 2 clips into side windows of URM to secure SEPP CPU.
If there is a fan on the CPU, Please plug in the fan cable to the three pin fan connector on the
motherboard (PFAN1).
2.2.2 For Socket 370 CPU
Before installing CPU, make sure the power is off. Locate the level bar on the PGA370 ZIF socket.
Push level bar away from the socket and pull upward 90 degrees. Insert the CPU into the socket.
Make sure the notch of the CPU corresponds with the white dot on the ZIF socket (the corner
without pin socket). Do not push in the CPU. Make sure all pins are aligned with the CPU socket. ON
the level bar.
2.3 Installation of Memory
P2/370A motherboard has 3x168-pin 64-bit Dual Inline Memory Module (DIMM) sockets divided into
3 banks ( P2/370A-Z has 2x168-pin DIMM socket only ). You can install 3.3V Extended Data Output
(EDO)or Unbuffered Synchronous DRAM (SDRAM)memory. This will increase the system reliability.
2.3.1 Installation of 168-pin DIMM (Dual Inline Memory Module)

1. Before inserting the DIMM, make sure the pin1 of the DIMM matches with the pin1 on the DIMM socket.
2. Insert DIMM into the DIMM sockets at a 90-degree angle and press down.
2.3.2 Removal of 168-pin DIMM
1. Press the holding clips on both sides of the socket outward to release the DIMM.
2. Gently pull the DIMM out of the socket.
3.
2.3.3 Memory Configuration
There is no jumper setting required for the memory size or type. It is automatically detected by the
system BIOS, and the total memory size is to add them together.
DIMM Socket DIMM Modules
DIMM1 EDO/SDRAM 8, 16, 32, 64, 128, 256MB
DIMM2 EDO/SDRAM 8, 16, 32, 64, 128, 256MB
DIMM3 EDO/SDRAM 8, 16, 32, 64, 128, 256MB
Notice: The P2/370A-Z motherboard supports DIMM1 & DIMM2 socket only.
2.4 I/O Connections/Panel Connections
I/O Connections
J1 ATX Power Connector
PFAN1 CPU fan connector
SIR Infrared Connector ( Cable optional )
JP1 Wake up on LAN connector
SB_LINK For link with Creative’s Sound Blaster 16
JFLP1 Floppy Disk Drive Connector
IDE1, 2 Primary/ Secondary IDE Connectors
MS PS/2 Mouse Port
KB PS/2 Keyboard Connector
JCOM1, 2 Serial Ports 1 & 2
JPRT Printer Port
USB1, 2 USB Connector
P1 Game/MIDI Connectors (optional)
LOUT Line out Connector (optional)
LIN Line in Connector (optional)
MIC Microphone in Connector (optional)
MITSUMI The Connector for Mitsumi CD-ROM audio cable (optional)
SONY The Connector for IDE/Sony CD-ROM audio cable (optional)
2.4.1 ATX Power Connector (20-pin J1)
Make sure that the power supply is off before connecting or disconnecting the power cable.

2.4.2 CPU Fan Connector (3-pin PFAN1)
Connect the fan's plug to the board taking into consideration the polarity of the connector.
2.4.3 Infrared Connector (5-pin SIR)
This connector supports the optional wireless transmitting and receiving infrared module, with this
module and application software such as Laplink or Win95 Direct Cable Connection, user can
transfer files to or from their laptops, notebooks, PDA, PCs and printers. The connector supports
IrDA (115.2Kbps, 2 meters) and ASK-IR (56Kbps). Install infrared module onto Infrared connector
and configure the setting through "UART Mode Select" in Integrated Peripherals to select whether
UART is directed for use with COM2 or Infrared.
2.4.4 Wake-up on LAN Connector (3-pin JP1)
The JP1 connector powers up the system when a wakeup packet or signal is received from the
network . This feature requires the Wake up on LAN function in BIOS is set to Enabled and that your
system has an ATX power supply with at least 720mA +5V standby power.

2.4.5 Creative's SB_LINK Sound Connector (6-pin SB_LINK)
The SB_LINK serves as a bridge between the mainboard and Creative's PCI sound card. This
connector delivers Sound Blaster 16 compatibility for real-mode DOS games.
2.4.6 Floppy Disk Drive Connector (34-pin JFLP1)
This connector supports the provided floppy disk drive ribbon cable. Orient the red stripe to pin 1
2.4.7 Primary/Secondary IDE Connector (Two 40-pin IDE)
These connectors support the provided IDE hard disk ribbon cable. Connect your first IDE hard disk
to master mode of the primary channel. If you have second IDE device to install in your system,
connect it as slave mode on the same channel, and the third and fourth device can be connected on
secondary channel as master and slave mode respectively.

2.4.8 PS/2 Mouse Port (6-pin Mini-Din MS)
The system will direct IRQ12 to the PS/2 mouse.
2.4.9 PS/2 Keyboard Connector (6-pin Mini-Din KB)
This connection is for a standard keyboard using a PS/2 plug. You may use a Din to Mini-Din
adapter on standard AT keyboards.
2.4.10 Serial Port (Two 9-pin D-type JCOM)
2.4.11 Printer Port (25-pin D-type JPRT)
You can enable the parallel port and choose the IRQ through the "Onboard Parallel Port" setting in
Integrated Peripherals of the COMS SETUP UTILITY.
2.4.12 USB Connectors (Two 4-pin USB)
You can attach USB devices to the USB connector.
2.4.13 Line Out Connector (optional)
The Line Out phonejack provides the audio outputs for the left and right stereo channels.
2.4.14 Line In Connector (optional)
The Line In phonejack is used to attach monaural or stereo devices such as a cassette, Digital
Audio Tape, or Minidisc players for playback, mixing, or recording.
2.4.15 Microphone In Connector (optional)
The Microphone In phonejack is used to attach a monaural microphone for live audio input for
playback, mixing, or recording.
2.4.16 Game/MIDI Port (optional)
The Game/MIDI Port connector is used to attach a joystick for game interaction or to attach an
external MIDI device for playback, mixing, or recording.
2.4.17 ATAPI IDE/Sony CD-ROM Audio (4-pin SONY) (optional)
The ATAPI IDE/Sony CD-ROM Audio connector is used to connect the audio cable from either an
ATAPI IDE or Sony CD-ROM drive for playback, mixing, and recording.

2.4.18 Mitsumi CD-ROM Audio (4-pin MITSUMI) (optional)
The Mitsumi CD-ROM Audio connector is used to connect the audio cable from a Mitsumi CD-ROM
drive for playback, mixing, or recording. Only one of the two CD-ROM audio connectors may be
used at a time.
2.4.19 Panel Connection (24-pin JFRNT)
JFRNT Connector Function
GREENLED Suspend Mode LED
PWRLED Power LED
KEYLK Keylock Switch
SPKR Speaker
RESET Reset Switch
IDELED HDD LED
PWRBNT ATX Power Button Connector
SMISW Sleep Switch
WARNING: To avoid the system from failing, turn off the power before connecting any devices to the
system.
Chapter 3. BIOS Setup
3.1 CMOS Setup Utility
To activate CMOS Setup, press <DEL> key immediately after you turn on the system. The following
message “Press DEL to enter SETUP” should appear in the lower left hand corner of your screen.
When you enter the CMOS Setup Utility, the Main Menu will be displayed (Figure 3-1). You can use
arrow keys to select your function, press <Enter> key to accept the selection and enter the sub-
menu.
Figure 3-1. CMOS Setup Utility Main Screen

ROM PCI/ISA BIOS (XXXXXXXX)
CMOS SETUP UTILITY
AWARD SOFTWARE, INC.
3.2 Standard CMOS Setup
With the sub-menu (Figure 3-2), you can setup the; system date, system time, hard and floppy drive
type, and display adapter type. Please refer to your equipment specification when changing the
setup. Use arrow keys to highlight items, and use <PageUp>, <PageDown>, <+>, or <-> keys to
scroll through the available options.
Figure 3-2. Standard CMOS Setup Screen
ROM PCI/ISA BIOS (XXXXXXXX)
STANDARD CMOS SETUP
AWARD SOFTWARE, INC.
3.2.1 Date
To assign the system date, the format is "mm.dd.yy". The input range for the Month is 1-12. Range for Date
is 1-31. Range for Year is 1994-2079. System BIOS will calculate the day of the week automatically.
3.2.2 Time
To assign the system time, the format is "hh:mm:ss". The setting is in military time. When entering 2:34pm
enter "14:34:00".

3.2.3 Hard Disks Setting
The BIOS supports Dual-Channel PIO and PCI Bus Master IDE ports. Each port supports one master and
one slave hard drive. You can use <PageUp> or <PageDown> key to change hard drive type. Incorrect
setting may result in boot up error or system hang.
If your hard disk drive is not listed, you can select Type "USER" to define your own drive manually. We
recommend that you select Type "AUTO" for all drives. The BIOS will auto-detect the hard disk drive and
CD-ROM drive at the POST stage.
If your hard disk drive is a SCSI device, please select "None" for your hard drive setting.
3.2.4 Floppy Drives A&B Setting
Select your floppy disk drive type. Options are 360KB (5.25"), 720KB (3.5"), 1.2MB (5.25"), 1.44MB (3.5"),
2.88MB (3.5").
3.2.5 Video Display Adapter Setting
Select the display adapter type for your system. Options are EGA/VGA, MONO, CGA40 and CGA80.
3.2.6 Halt On
This function allows the system to halt when an error is detected during Power-On Self-Test.
3.3 BIOS Features Setup
The sub-menu (Figure 3-3) includes all AWARD enhanced functions. The correct setting can
enhance boot up efficiency. You can assign system speed, setup sequence, typematic and system
password setting. You can enter <F1> key for help on highlighted topics. If you want to restore
values before the changes you just made, press <F5> key. If you want to restore default value, press
<F6> or <F7> key.
Figure 3-3. BIOS FEATURES SETUP SCREEN
ROM PCI / ISA BIOS (XXXXXXXX)
BIOS FEATURES SETUP
AWARD SOFTWARE, INC.
3.3.1 Virus Warning
When enabled, the BIOS will monitor the boot sector and the partition table on the hard drive for any
attempt to modify. If an attempt is detected, the BIOS will halt the system and prompt the warning
message. Select "Disabled" if you are installing a new operating system.

3.3.2 CPU Internal/External Cache
These options are to enable or disable CPU Internal (L1) Cache, or External (L2) Cache.
3.3.3 CPU L2 Cache ECC Checking
Select "Enabled" to enable CPU L2 Cache ECC Checking.
Select "Disabled" to disable CPU L2 Cache ECC Checking.
3.3.4 Quick Power On Self Test
Select "Enabled" to speed up time required to complete Power-On Self-Test.
3.3.5 Boot Sequence
This option allows user to assign boot sequence of the system. Available options are A, C, D, E, F, CD-
ROM, SCSI and LS120/ZIP.
3.3.6 Swap Floppy Drive
When enabled, physical drive A will be assigned to logical drive B, and physical drive B will be assigned to
logical drive A.
3.3.7 Boot Up Floppy Seek
The system will detect and verify operation of the floppy drive type .
3.3.8 Boot Up Numlock Status
The option allows the <NumLock> key to be activated after system boot up.
3.3.9 Typematic Rate Setting
Select "Enabled" to configure "Typematic Rate" and "Typematic Delay" functions.
3.3.10 Typematic Rate
Use this option to set the rate at which a character keeps repeating while you hold down a key.
3.3.11 Typematic Delay
Select "Enabled" to set the length of delay before key strokes to repeat. Available options are
"250","500","750", and "1000".
3.3.12 Security Option
You can select whether the password is required every time the system boots or only when you enter the
Setup. You can assign "Supervisor Password" and "User Password" in the main CMOS Setup Utility
Screen.
3.3.13 PCI/VGA Palette Snoop
Enable this option to correct screen color shifts, when there is a combination of VGA cards, accelerator
cards, or MPEG cards present.
3.6.14 Assign IRQ For VGA
The Enabled option allows the BIOS to auto-route an IRQ for use by a VGA card. While most of the VGA
cards do not need the IRQ assignment, certain VGA cards may need it.
3.3.15 OS Select for DRAM > 64MB

If you are using OS/2 operating system and installed memory is larger than 64MB. You need to have the
setting in the enable mode.
3.3.16 Video BIOS Shadow
Video shadow copies BIOS code from slower ROM to faster RAM. BIOS can then execute from RAM.
3.3.17 C8000-CBFFF /DC000-DFFFF Shadow
Optional firmware will be copied from ROM to RAM. When this option is enabled.
3.4 Chipset Features Setup
These settings are intended for the Chipset function on the motherboard. Fine tuning these options,
enhances the performance of the system.
Figure 3.4 CHIPSET FEATURES SETUP SCREEN
ROM PCI / ISA BIOS (XXXXXXXX)
CHIPSET FEATURES SETUP
AWARD SOFTWARE, INC.
3.4.1 Auto Configuration
The optimum value for the chipset and CPU will be automatically loaded when enabled.
3.4.2 EDO DRAM Speed Selection
This option must match the EDO memory speed. If the installed memory is 60ns type, you should set it to
"60".
3.4.3 SDRAM RAS-to-CAS Delay
These are timing of SDRAM CAS Latency and RAS to CAS Delay, calculated by clocks. They are important
parameters affects SDRAM performance.
3.4.4 SDRAM RAS Precharge Time
The RAS Recharge means the timing to inactive RAS and the timing for DRAM to do Recharge before next
RAS can be issued.
3.4.5 DRAM Data Integrity Mode
The ECC algorithm has the ability to detect double bit error and automatically correct single bit error.

3.4.6 System BIOS Cacheable
Allows the system BIOS to be cached for faster system performance.
3.4.7 Video BIOS Cacheable
Allows the video BIOS to be cached for faster video performance.
3.4.8 Video RAM Cacheable
This item lets you cache Video RAM A000 and B000.
3.4.9 8 Bit I/O Recovery Time
This option specifies the length of a delay inserted between consecutive 8-bit I/O operations.
3.4.10 16 Bit I/O Recovery Time
This option specifies the length of a delay inserted between consecutive 16-bit I/O operations.
3.4.11 Memory Hole At 15M-16M
Enabling this feature reserves 15MB to 16MB memory address space to ISA expansion cards that
specifically require this setting. This makes the memory from 15MB and up unavailable to the system.
Expansion cards can only access memory up to 16MB.
3.4.12 Passive Release
This function is used to meet the latency of the ISA bus master. Try to enable or disable it, if you have ISA
card compatibility problem.
3.4.13 Delayed Transaction
This function is used to meet the latency of PCI cycles to from ISA bus. Try to enable or disable it, if you
have ISA card compatibility problem.
3.4.14 AGP Aperture Size (MB)
Choose 4, 8, 16, 32, 64, 128, 256MB. Memory-mapped, graphics data structures can reside in the Graphics
Aperture.
3.4.15 CPU Host Clock
Choose Default, 66, 75, 83, 100, 103, 105, 110, 112, 115, 120, 124, 124A, 133, 133A, 140 or 150Mhz for
the external frequency of your CPU. You can select Default, 66, 75 or 83Mhz if your CPU is 66Mhz
FSB and select Default, 100, 103, 105, 110, 112, 115, 120, 124, 124A, 133, 133A, 140 or 150Mhz if the
CPU is 100Mhz FSB.
The 75, 83, 103, 105, 110, 112, 115, 120, 124, 124A, 133, 133A, 140 and 150 Mhz frequency are
optional.
The frequency mapping table of the elements:
Ext. frequency AGP PCI ISA DIMM
66Mhz 66Mhz 33Mhz 8.33Mhz 66Mhz
75Mhz 75Mhz 37.5Mhz 8.33Mhz 75Mhz
83Mhz 83Mhz 41.6Mhz 8.33Mhz 83Mhz
100Mhz 66Mhz 33Mhz 8.33Mhz 100Mhz
103Mhz 68.6Mhz 34.3Mhz 8.33Mhz 103Mhz
105Mhz 70Mhz 35Mhz 8.33Mhz 105Mhz
110Mhz 73.3Mhz 36.67Mhz 8.33Mhz 110Mhz
112Mhz 74.6Mhz 37.33Mhz 8.33Mhz 112Mhz

115Mhz 76.6Mhz 38.33Mhz 8.33Mhz 115Mhz
120Mhz 80Mhz 40Mhz 8.33Mhz 120Mhz
124Mhz 82.6Mhz 41.33Mhz 8.33Mhz 124Mhz
124AMhz 82.6Mhz 31Mhz 8.33Mhz 124Mhz
133Mhz 88.6Mhz 44.33Mhz 8.33Mhz 133Mhz
133AMhz 88.6Mhz 33.25Mhz 8.33Mhz 133Mhz
140Mhz 93.3Mhz 35Mhz 8.33Mhz 140Mhz
150Mhz 100Mhz 37.5Mhz 8.33Mhz 150Mhz
Notice:
The 75, 83, 103, 105, 110, 112, 115, 120, 124, 124A, 133, 133A, 140 and 150Mhz frequency are over
specification.
You must install 8ns or faster DIMM on board if you set 103, 105, 110, 112, 115, 120, 124 or 124AMhz
as external frequency and must install 7ns or faster DIMM on board if you set 133, 133A or 140Mhz
as external frequency. If the external frequency is 150Mhz, you must have installed 6ns or faster
DIMM on board.
The 124A (133A) means operation in asynchronous mode with AGP clock.
Warning: Over specification operations are not recommended.
3.5 Power Management Setup
Power management decreases power usage under the pre-defined standby time range.
Figure 3-5. POWER MANAGEMENT SETUP SCREEN
ROM PCI / ISA BIOS (XXXXXXXX)
POWER MANAGEMENT SETUP
AWARD SOFTWARE, INC.
3.5.1 ACPI Function
This item allows you to enable or disable the function of Advanced Configuration and Power
Interface which offers improved power management .
3.5.2 Power Management
Mini Saving System starts power saving function when the inactivity period
exceeds 1 hour.