AOpen AP5CS AP5CS User Manual

Chapter

Features 1

The AP5CS is a Pentium -based system board that utilizes the PCI/ISA
architecture. It integrates the SiS application-specific integrated circuit
(ASIC) chipsets that enable the System Management Mode (SMM) function
of the Pentium chip. It also features the Green power management that
extends energy conservation from system components to display monitors.
The system board supports a 3.3V Pentium Processor. It has four ISA-AT
and four PCI slots for future expansion. The system memory is expandable
to 128 MB by adding single in-line memory modules (SIMMs). The second­level cache is also upgradable to 1 MB and supports both the write-back and
write-through modes.
A super I/O controller and a two-channel PCI mode 3 IDE are also
incorporated in the motherboard to further enhance system performance.
The board measures 22 x 33 cm (full baby-AT size).

User’s Guide 1-1

Features

Specifications

Microprocessor

Memory
SIMM Sockets
ASICs

Bus Architecture
Expansion Slots
Ports

Secondary Cache
BIOS
RTC
Board Size

Pentium™ (3.3V) Processor
75/90/100/120/133 MHz

128 MB
Four 72-pin, 32-bit
SiS5501

SiS5502
SiS85C503

ISA, PCI
Four ISA and four PCI slots
One parallel port (SPP/ECP/EPP)

Two serial ports
Two-channel PCI mode 3 IDE

256 KB/512 KB/1 MB
Award
Dallas 12887A
22 x 33 cm (full baby-AT)

1-2 User’s Guide

Features

Board Layout

1. External battery connector 14. 72-pin SIMM sockets

2. Keyboard controller 15. Second-level cache

3. Parallel port 16. ZIF-type CPU socket

4. Serial port (COM2) 17. Multifunction connector

5. Keyboard connector 18. Fan connector

6. FDD connector 19. RTC/Battery

7. IDE2 connector 20. BIOS

8. Power connector 21. SiS5502 chip

9. IDE1 connector 22. SiS85C503 chip

10. Serial port (COM1) 23. SiS5501 chip

11. HDD controller 24. ISA slots

12. HDD LED connector 25. PCI slots

13. Super I/O controller

User’s Guide 1-3

Features

System Board Parts

Microprocessor

The AP5CS system board uses an Intel Pentium (3.3V) processor running at
speeds of 75, 90, 100, 120 or 133 MHz. Chapter 2 gives details on how to
upgrade the Pentium processor.

ASICs

The three ASICs (application-specific integrated circuits) onboard are the
SiS5501, SiS5502, and SiS85C503. The SiS5501 serves as the PCI/ISA
cache memory controller that supports write-back and write-through cache
modes, and 1 MB maximum cache memory. It also acts as a PCI bridge that
translates CPU cycles into PCI cycles.
The SiS5502 functions as a PCI local bus data buffer that offers 64-bit
DRAM and 32-bit PCI bus interfaces to support the 64-bit Pentium processor
data bus.
The SiS85C503 acts as the ISA/PCI bus bridge that translates the PCI bus
cycles into ISA bus cycles or vice-versa. It also functions as an ISA arbiter,
DMA cycle and interrupt controller.

Award BIOS

The Award BIOS (basic input-output system) resides in the flash ROM chip.
This contains the program that performs the power-on self-tests (POST) upon
booting. During POST, this program activates the peripheral devices, tests
onboard memory, and prepares the system for operation. Chapter 3 gives
more information on the Award BIOS.

Expansion Slots

The board expansion slots consist of four ISA-AT and four PCI slots. These
expansion slots are the parallel bars on the system board. There are rows of
golden pins inside each slot that serve as a clutch to secure the contacts of
expansion boards. Chapter 2 tells how to install the expansion boards.

1-4 User’s Guide

Features

DRAM Sockets

The system board has four 72-pin DRAM sockets that expand system
memory to a maximum of 128 MB. These sockets accept single- and
double-density single in-line memory modules (SIMMs). Chapter 2
discusses the different memory configurations available.

Two-Channel PCI Mode 3 IDE

The board utilizes the enhanced integrated drive electronics (IDE) interface
that improves data transfer rate. It also allows the system to support four
IDE devices, including fixed disks with more than 528 MB capacity. This
feature offers users increased data storage.

Super I/O Controller

The onboard super I/O controller chip supports two UART 16450/16550­compatible serial ports and a parallel port (SPP, EPP, ECP)1. It also
accomodates 1.2-/1.44-/2.88-MB diskette drives allowing full-range access
to 5.25-inch drives with 360 KB or 1.2 MB format and 3.5-inch drives with
720-KB, 1.44-MB or 2.88-MB format.

Keyboard Connector

The keyboard connector at the rear of the system board accepts any
AT-compatible keyboard. PS/2 keyboard and mouse connectors are
optional.

SRAM

The system board supports 256-KB, 512-KB, and 1-MB second-level, write­back and write-through cache.

1

SPP: Standard Parallel Port

EPP: Enhanced Parallel Port (IEEE 1284 compliant)
ECP: Extended Capabilities Port (IEEE 1284 compliant)

User’s Guide 1-5

Features

Power Management

The AP5CS conforms to the Green power-saving standards of the U.S.
Environmental Protection Agency (EPA) Energy Star program. The system
board features four system power-saving modes that decrease power
consumption to less than 30 watts. For more information on the power­saving modes, see Chapter 3.

1-6 User’s Guide

Chapter

Hardware Setup2

This chapter tells how to set jumpers, change the system battery, upgrade
system memory, add expansion boards, and install the system board.
Install the CPU, memory, and set the jumpers before you install the system
board inside a system housing. You may add the other components after
installing the board. Read this chapter to learn about the components before
you install them.

ESD Precautions

Electrostatic discharge (ESD) can damage your processor, disk drives,
expansion boards, and other components. Always observe the following
precautions before you install a system component.

1. Do not remove a component from its protective packaging until you are
ready to install it.

2. Wear a wrist grounding strap and attach it to a metal part of the system
unit before handling components. If a wrist strap is not available,
maintain contact with the system unit throughout any procedure
requiring ESD protection.

User’s Guide 2-1

Hardware Setup

Installing a Microprocessor

ZIF Microprocessor Socket

The motherboard has a zero-insertion force microprocessor socket that
allows you to install a Pentium CPU without using any tools.
Follow these steps to install a Pentium CPU in a ZIF-type upgrade socket:

Make sure that the system power is off before
installing any component.

1. Pull up the socket lever.

2. Insert the CPU with the attached heatsink and fan. Make sure that pin 1
of the CPU aligns with the hole 1 of the socket. The notched corner on
the CPU indicates pin 1.

Press the CPU gently but firmly into place. Be
careful not to bend the pins.

2-2 User’s Guide

Hardware Setup

3. Pull down the socket lever to lock the CPU into the socket.

4. Plug the fan cable into the onboard 4-pin fan connector.

5. Set the jumpers accordingly. See the following sections for the correct
jumper settings.

Upgrading the Microprocessor

Follow these steps to upgrade the Pentium CPU from 75 MHz to 133 MHz:

1. Turn off the system power.

2. Pull up the socket lever.

3. Remove the installed CPU.

4. Install the upgrade CPU. Refer to the section Installing a

Microprocessor on how to install the Pentium CPU.

User’s Guide 2-3

Hardware Setup

Jumper Settings

You have to change the jumper settings when you reconfigure your system.
This section tells how to reset the jumpers. The figure below shows the
jumper locations.

JP3, JP12, JP18, JP19 and JP20 are reserved
for manufacturer use. See Appendix A for the
default settings.

2-4 User’s Guide

Hardware Setup

Changing the CPU Type and Speed

Set jumpers JP10, JP11 and JP17 according to the CPU type and speed.
See the figure below.

CPU TYPE JP10 JP11 JP17

P54C-75

P54C-90

P54C-100

P54C/CS/CQS-120

P54C/CS/CQS-133

User’s Guide 2-5

Hardware Setup

Changing the Flash ROM Type

Set jumpers JP13 and JP15 according to the type of Flash ROM in use. If
the system uses EEPROM instead of Flash ROM, you must adjust the
jumpers to 2-3. The default setting depends on the BIOS ROM type.

FLASH ROM
(default)

EEPROM

JP13 JP15

Selecting the ECP DMA Channel

The jumpers JP5 and JP6 are used to select the DMA channel for ECP
function.

JP5 JP6

DMA 1

DMA 3

2-6 User’s Guide

Hardware Setup

Enabling the FDC and Super I/O Chip

The jumper JP7 is used to enable or disable the floppy disk controller (FDC)
and the super I/O chip. The SMC665 onboard I/O chip supports two serial
ports, one parallel port and FDD functions. Set the jumper to Disabled in
case you want to use a separate I/O card.

ENABLED DISABLED

JP7

User’s Guide 2-7

Hardware Setup

Selecting the Cache Size

The system board supports 256-KB, 512-KB, and 1-MB second-level cache.
When upgrading the cache, install the SRAM chips and set jumpers JP14
and JP16 accordingly.

CACHE SIZE JP14 JP16

256 KB

512 KB

1 MB

For details on how to install and configure
cache memory, see the section Upgrading the
Cache Memory.

2-8 User’s Guide

Hardware Setup

Clearing the CMOS

The 3-pin jumper JP2 is used to clear the values in the CMOS. You need to
clear the CMOS if you forget your system password. To do this, shut off the
system power and short pins 1-2 of JP2 for a few seconds. Then set the
jumper to normal setting by shorting pins 2-3 with a jumper cap. Enter Setup
to specify a new password.

NORMAL CLEAR CMOS

JP2

User’s Guide 2-9

Hardware Setup

Memory Configuration

The system board supports a maximum memory of 128 MB. The four 72­pin SIMM sockets accommodate 1-, 4-, 16- and 64-MB single-density
SIMMs, and 2-, 8- and 32-MB double-density SIMMs, with or without the
Extended Data Output (EDO) function. The EDO feature extends the data
transfer cycle, thus improves memory performance. All SIMMs support a
DRAM speed of 70/80 ns or less.
The table below lists the SIMM types and their corresponding capacity.

SIMM Type Capacity

256 Kb x 32/36 1 MB
512 Kb x 32/36 2 MB

1 Mb x 32/36 4 MB
2 Mb x 32/36 8 MB
4 Mb x 32/36 16 MB
8 Mb x 32/36 32 MB

16 Mb x 32/36 64 MB

2-10 User’s Guide

Hardware Setup

The following are the possible SIMM configurations.

Bank 0 Bank 1 Total

SIMM 0 SIMM 1 SIMM 2 SIMM 3

1 MB 1 MB 2 MB
1 MB 1 MB 1 MB 1 MB 4 MB
2 MB 2 MB 4 MB
2 MB 2 MB 2 MB 2 MB 8 MB
2 MB 2 MB 8 MB 8 MB 20 MB
2 MB 2 MB 16 MB 16 MB 36 MB
4 MB 4 MB 8 MB
4 MB 4 MB 4 MB 4 MB 16 MB
4 MB 4 MB 16 MB 16 MB 40 MB
8 MB 8 MB 16 MB
8 MB 8 MB 8 MB 8 MB 32 MB
8 MB 8 MB 16 MB 16 MB 48 MB

8 MB 8 MB 32 MB 32 MB 80 MB
16 MB 16 MB 32 MB
16 MB 16 MB 16 MB 16 MB 64 MB
32 MB 32 MB 64 MB
32 MB 32 MB 32 MB 32 MB 128 MB
64 MB 64 MB 128 MB

Memory

User’s Guide 2-11

Hardware Setup

Installing a SIMM

Observe the ESD precautions when installing
components.

Follow these steps to install a SIMM:

1. Slip a SIMM at a 45o angle into a socket with the component side
facing down. Always install SIMMs beginning with Bank 0.

Be careful when inserting or removing SIMMs.
Forcing a SIMM in or out of a socket can
damage the socket or the SIMM (or both).

2. Gently push the SIMM up until the pegs of the socket slip into the holes
on the SIMM and the holding clips lock the SIMM into a vertical
position.

The SIMM should be at a 90o angle when
installed.

2-12 User’s Guide

Hardware Setup

Removing a SIMM

1. Press the holding clips on both sides of the SIMM outward to release it.

2. Press the SIMM downward to about a 45o angle.

3. Gently pull the SIMM out of the socket.

User’s Guide 2-13

Hardware Setup

Upgrading Cache Memory

The second-level cache is upgradable from 256 KB to 1 MB. Both write­back and write-through modes are supported by the system. See the table
below for the possible cache configurations.

Cache Size TAG SRAM1 (U31) Data SRAM

256 KB 32 Kb x 8 32 Kb x 8 x 8 pcs
512 KB 32 Kb x 8 64 Kb x 8 x 8 pcs

1 MB 32 Kb x 8 128 Kb x 8 x 8 pcs

2

Follow these steps to install SRAMs:

1. Locate the cache sockets on the system board. See the section Board
Layout.

2. Insert the SRAM chip into socket. Align the straight edge of the chip
with the straight edge of the socket. Also, make sure that the cut edge
of the chip corresponds to the cut edge of the cache socket. See the
figure below.

Press the SRAM chip gently but firmly into
place. Be careful not to bend the pins.

1

Use a 5V SRAM for TAG RAM.

2

Use a 5V/3.3V mix mode SRAM for Data RAM.

2-14 User’s Guide

Hardware Setup

( Turbo Switch )

( Turbo LED )

Connectors

Multifunction Connector

This 20-pin connector is marked JP21 on the system board. It supports a
number of system functions: LED, turbo, reset, keylock, and speaker.
Attach the front panel connectors to the corresponding pins as in the
illustration below.

Speaker Power LED Keylock

Speaker Power LED Keylock

Reset Turbo Switch Turbo LED

Some housings have a five-pin connector for the keylock and power LED.
See the following illustration.

User’s Guide 2-15

Break Switch Green Mode LEDReset

Hardware Setup

( Turbo Switch )

( Turbo LED )

Ground

Speaker Keylock and Power LED

Speaker Keylock & Power LED

Reset

Reset Turbo Switch Turbo LED

Break Switch Green Mode LED

Other housings may have a 12-pin connector. If your housing has this type
of connector, plug it into JP21 as shown in the following figure. Make sure
that the red wire of the connector connects to pin 11.

Ground

Res-VCC

Speaker

Break Switch

Turbo Switch

( Turbo Switch )

Reset

Keylock

Ground

VCC

2-16 User’s Guide

Hardware Setup

Keyboard Connector

The keyboard connector is a 5-pin, AT-compatible connector. The following
figure shows how to connect the keyboard.

Power Connector

A standard power supply has two cables with six wires each. Attach these
cables to the power connector on the board in such a way that all the black
wires are in the center.

User’s Guide 2-17

Hardware Setup

Fan Connector

The 4-pin fan connector is marked FANCON on the system board. To
connect, plug the connector to its corresponding pin as shown in the
following figure.

+5V +12V

Break/Suspend Connector

The Break/Suspend connector is a 2-pin connector labeled JP4 on the system
board. Pressing the break switch on the front bezel forces the system to enter
the suspend mode. Pressing any key on the keyboard returns the system to
normal mode.

2-18 User’s Guide

Hardware Setup

External Battery Connector

The 4-pin external battery connector is marked JP1 on the system board.
This is used to connect the external battery in case your system board does
not have an onboard battery or the DS12887A RTC/battery.

1 1

+ +

_ _

JP6

JP1

User’s Guide 2-19

Hardware Setup

Installation

The full baby-AT size of the AP5CS system board easily fits most housings.
It has mounting holes that conform to the standard system housing.
Some housings may differ slightly in design, requiring additional steps to
install the board. Read the documentation that comes with the housing.

Make sure that you have already installed the
system board components like the CPU and
memory, and have set the appropriate jumpers
before you proceed.

Installing the System Board

1. Open the system housing.

2. Use at least two screws that come with the housing to secure the board.

3. Attach the power supply cables to the power connector and the front
panel connectors to the multifunction connector. See the section
Connectors.

4. Install any additional components that you have not yet installed.

2-20 User’s Guide

Hardware Setup

Installing Expansion Boards

Install expansion boards after you have installed the system board into the
housing.
Follow these steps to install an expansion board.

1. Remove the bracket opposite the slot that you want to use. Save the
cover for future use. Save the screw to secure the expansion board.

2. Remove the board from its protective packaging.

3. Gently insert the golden edge of the board into the slot until it fits.

GOLDEN
EDGE

ISA SLOT PCI SLOT

4. Secure the board bracket with the screw.

User’s Guide 2-21

GOLDEN EDGE

Chapter

Award BIOS 3

This chapter explains the Setup Utility for the Award BIOS and tells how to
configure the system by setting the BIOS parameters.

Award BIOS Setup Main Menu

The Award BIOS Setup Main Menu appears below. During booting, a
prompt asks you to enter the system menu. To enter the system menu, press

c.

ROM PCI/ISA BIOS

CMOS SETUP UTILITY

AWARD SOFTWARE, INC.

STANDARD CMOS SETUP
BIOS FEATURES SETUP
CHIPSET FEATURES SETUP
POWER MANAGEMENT SETUP
PCI & ONBOARD I/O SETUP
LOAD BIOS DEFAULTS
LOAD SETUP DEFAULTS

ESC : Quit ↑↓→← : Select Item
F10 : Save & Exit Setup (Shift) F2 : Change Color

Description of each function

PASSWORD SETTING
IDE HDD AUTO DETECTION
SAVE & EXIT SETUP
EXIT WITHOUT SAVING

Choosing Load BIOS Defaults or

Load Setup Defaults at this point

modifies all applicable settings.

The section at the bottom of the screen tells how to control the screen. Use
the arrow keys to move between items, jm to color scheme of the display,

^ to exit, and u to save the changes before exit. Another section at

the bottom of the screen displays a brief description of the highlighted
item.

After selecting an item, press e to select or enter a submenu.

Standard CMOS Setup

Standard CMOS Setup sets the basic system parameters such as the date,
time, and the hard disk type. Use the arrow keys to highlight an item and { or

} to select the value for each item.

User’s Guide 3-1

Award BIOS

ROM PCI/ISA BIOS
STANDARD CMOS SETUP
AWARD SOFTWARE, INC.

Date (mm:dd:yy) : Wed. Jan 4 1995
Time (hh:mm:ss) : 00:00:00

HARD DISK TYPE SIZE CYLS HEAD PRECOMP LANDZ SECTORS MODE

Primary Master : User 345 790 15 65535 790 57 NORMAL
Primary Slave : None 0 0 0 0 0 0 --­ Secondary Master : None 0 0 0 0 0 0 --­ Secondary Slave : None 0 0 0 0 0 0 ---

Drive A: 1.44M, 3.5 in
Drive B: None

Video : EGA/VGA

Halt On: All Errors
ESC : Quit ↑↓→← : Select Item PU/PD/+/- : Modify

F1 : Help (Shift) F2 : Change Color

Base Memory : 640 K
Extended Memory : 15360 K

Other Memory : 384 K

Total Memory : 16384 K

Date

To set the date, highlight the Date parameter. Press { or } to set the current
date. The date format is month, date, and year.

Time

To set the time, highlight the Time parameter. Press { or } to set the current
time in hour, minute, and second format. The time is based on the 24-hour
military clock.

Hard Disks

The four hard disk parameters listed in the menu are Primary Master,
Primary Slave, Secondary Master and Secondary Slave. These parameters
allow you to configure the drives that you connect into your IDE connectors.
To configure, press { or } to select a hard disk drive type, or type the number
and press e. Select User to define your own hard disk type manually. You

3-2 User’s Guide

Award BIOS

can use the IDE HDD Auto-Detection function in the Main Menu to
automatically configure your hard disk drive parameters. If your system does
not have a hard disk drive, select None and press e.

For an IDE hard disk, we recommend that you
use the Auto-Detection utility to enter the drive
specifications automatically. See the section
IDE HDD Auto-Detection.

Select the User option if you want to enter the
specifications manually.

Floppy Drive Types

Press { or } to select a floppy disk drive type. The settings are:

• 360 KB 5.25-inch

• 1.2 MB 5.25-inch

• 720 KB 3.5-inch

• 1.44 MB 3.5-inch

• 2.88 MB 3.5-inch.

Choose None if you have no floppy drive.

Video

This parameter allows you to configure the video display card present in your
system. The video settings are:

• EGA/VGA

• CGA 40

• CGA 80

• MONO

User’s Guide 3-3

Award BIOS

Select the adapter type setting that matches your video display card and
monitor.

3-4 User’s Guide

Award BIOS

Error Halt

This parameter enables you to control the system stops in case of error. The
available settings are:

• No Errors

• All Errors

• All, But Keyboard

• All, But Diskette

• All, But Disk/Key

The default setting is All Errors.

Memory

The Memory parameters are for display only. These are determined by the
BIOS power-on self-test.

Base Memory

The POST detects the amount of base (or conventional) memory installed in
the system. The value of the base memory is 640 KB for systems with 640
KB or more memory installed on the mainboard.

Extended Memory

The BIOS detects the amount of extended memory present during the POST.
This is the amount of memory located above 1 MB in the CPU memory
address map.

Expanded Memory

Expanded memory is the memory defined by the Lotus/Intel/Microsoft
(LIM) standard as EMS. Since a number of standard DOS applications can
not utilize memory above 640 KB, the Expanded Memory Specification

User’s Guide 3-5

Award BIOS

(EMS) swaps the memory which is not utilized by DOS with a section, or
frame. This allows access to the total system memory. The memory range
that can be swapped by EMS depends on the chipset design.
An expanded memory device is required to use memory as expanded
memory.

Other Memory

This refers to the memory located in the 640 KB to 1024 KB address space.
This is the memory that can be used for different applications. DOS uses this
area to load device drivers to keep as much base memory free for application
programs.

3-6 User’s Guide

Award BIOS

BIOS Features Setup

This screen appears when you select BIOS Features Setup from
the Main Menu.

ROM PCI/ISA BIOS

BIOS FEATURES SETUP

AWARD SOFTWARE, INC.

Virus Warning : Disabled
CPU Internal Cache : Enabled
External Cache : Enabled
Quick Power On Self Test : Disabled
Boot Sequence : A, C
Swap Floppy Drive : Disabled
Boot Up Floppy Seek : Enabled
Boot Up NumLock Status : On
Boot Up System Speed : High
IDE HDD Block Mode : Disabled
IDE 32-bit Transfer Mode : Disabled
Gate A20 Option : Fast
Memory Parity Check : Disabled
Typematic Rate Setting : Disabled
Typematic Rate (Chars/Sec) : 6
Typematic Delay (Msec) : 250
Security Option : Setup

IDE Second-Channel Control : Enabled

Video BIOS Shadow : Enabled
C8000-CBFFF Shadow : Disabled
CC000-CFFFF Shadow : Disabled
D0000-D3FFF Shadow : Disabled
D4000-D7FFF Shadow : Disabled
D8000-DBFFF Shadow : Disabled
DC000-DFFFF Shadow : Disabled

ESC : Quit ↑ ↓ → ← : Select Item
F1 : Help PU/PD/+/- : Modify
F5 : Old Values (Shift) F2 : Color
F6 : Load BIOS Defaults
F7 : Load Setup Defaults

Virus Warning

Set this parameter to Enabled to activate the warning message. This
feature protects the boot sector and partition table of your hard disk from
virus intrusion. Set it to Disabled to disregard the message.
Any attempt during boot-up to write to the boot sector of the hard disk drive
stops the system and the following warning message appears on the screen.
Run an anti-virus program to locate the problem.

! WARNING !

Disk Boot Sector is to be modified

Type "Y" to accept write, or "N" to abort write

Award Software, Inc.

User’s Guide 3-7

Award BIOS

CPU Internal Cache/External Cache

The CPU Internal Cache/External Cache default setting is Enabled.
Turning the cache off slows down the system. Leave it enabled unless you
are troubleshooting a problem.

Quick Power-on Self-test

This parameter speeds up the power-on self-test by skipping some items that
are normally checked. The default setting is Disabled.

Boot Sequence

The settings are C,A and A,C to specify the system search sequence. The
default setting is A,C.

Swap Floppy Drive

Enabling this parameter tells your system to read the current floppy disk
drive in use regardless of the drive designation. The system may read drive
A as drive B or vice-versa. The default setting is Disabled.

Boot-up Floppy Seek

Set this parameter to Enabled to detect the type of floppy disk drive by
tracks. Set it to Disabled to disregard searching. Note that in the
Disabled setting, no warning message appears if the drive installed is 360
KB. The default setting is Enabled.

Boot-up NumLock Status

Setting this parameter to On enables the numeric function of the numeric
keypad. Set this parameter to Off to disregard the function. Disabling the
numeric function allows you to use the numeric keypad for cursor control.
The default setting is On.

Boot-up System Speed

Set the system speed to High or Low with this parameter. High is the
default setting.

3-8 User’s Guide

Award BIOS

IDE HDD Block Mode

This feature enhances hard disk performance by allowing multisector
transfers instead of one sector per transfer. Most IDE drives, except those
with old designs, can support this feature. The default setting is

Disabled.

IDE 32-bit Transfer Mode

Enabling this parameter improves system performance by allowing the use of
32-bit fixed disk access. This enhanced IDE feature only works under DOS,
Windows 3.X and Novell NetWare. If your system or hard disk does not
support this function, set this parameter to Disabled. The default
setting is Disabled.

Gate A20 Option

The settings for this parameter are Normal and Fast. If the data transfer is
controlled by the 8042 chip, set the parameter to Normal. The Fast setting
transfers the control to the ASICs. The default setting is Fast.

Memory Parity Check

This parameter lets you enable or disable the optional parity DRAM. The
default setting is Disabled. If you install SIMMs with parity bit
chips, set this parameter to Disabled.

Typematic Rate Setting

Set this parameter to Enabled to determine the typematic rate. Set it to

Disabled to disregard the rate setting. The default setting is
Disabled.

Typematic Rate

This parameter allows you to control the speed at which the system registers
repeated keystrokes. The typematic rate settings are 6, 8, 10, 12, 15, 20, 24,
and 30 chars/sec. The default setting is 6 chars/sec.

User’s Guide 3-9

Award BIOS

Typematic Delay

This parameter allows you to control the display time between the first and
the second characters. The typematic delay settings are 250, 500, 750, and
1000 msec. The default setting is 250 msec.

Security Option

The security option settings are System and Setup. The System option
limits access to both the System and Setup. A prompt asking you to enter
your password appears on the screen everytime you boot the system. The
Setup option limits access only to setup. The default setting for this
parameter is Setup.
To disable the security option, select Password Setting from the

Main Menu and press e.

IDE Second-Channel Control

This parameter is set to Enabled if the system is using the second IDE
channel. Disable the parameter if only the primary IDE channel is in use.

Video BIOS Shadow

If enabled, this copies the video display card BIOS into the system DRAM to
improve system performance. The default setting for this parameter is

Enabled.

C8000-CBFFF Shadow to DC000-DFFFF Shadow

These six lines are for shadowing other expansion cards with ROMs. The
default setting for these areas is Disabled. You need to know the
specific addresses that ROMs use to shadow the expansion cards. If you do
not know this information, enable all the ROM shadow settings. This
ensures shadowing of any present ROMs. Also, enabling all the settings
reduces the available memory by 640 KB to 1024 KB.

3-10 User’s Guide

Award BIOS

Chipset Features Setup

This screen appears when you select Chipset Features Setup
from the Main Menu.

ROM PCI/ISA BIOS

CHIPSET FEATURES SETUP

AWARD SOFTWARE, INC.

Auto Configuration : Enabled

Read CAS Pulse Width : 3T
DRAM Write CAS Width : 3T
L1 Cache Update Mode : WB
L2 Cache Update Mode : WB
SRAM Speed Option : Faster
SRAM Burst R/W Cycle : 3T
Memory Hole At 15M - 16M : Disabled
Refresh RAS Active Time : 5T
DRAM RAS to CAS Delay : 3T
DRAM RAS Precharge Time : 4T
Gate A20 Emulation : Enabled
Fast Reset Emulation : Enabled
Slow Refresh (1:4) : Disabled
System BIOS Cacheable : Enabled
Video BIOS Cacheable : Enabled

Latency from ADS# status : 3T
Refresh when CPU Hold : Disabled
Snoop Filter : Disabled
Post Write CAS Active : 2T
CPU/PCI Post Write Delay : 2T
PCI Clock Frequency : CPUCLK/1.5
Max. Burstable Range : 0.5 Kb
CPU/PCI Burst Mem. Write : Enabled
CPU/PCI Post Memory Write : Enabled
ISA Bus Clock Frequency : PCICLK/4
DRAM Type of Bank 0 & 1 : FP DRAM
DRAM Type of Bank 2 & 3 : FP DRAM
EDO CAS RD Pulse Width : 2T
EDO CAS WS Pulse Width : 1T

ESC : Quit ↑ ↓ → ← : Select Item
F1 : Help PU/PD/+/- : Modify
F5 : Old Values (Shift) F2 : Color
F6 : Load BIOS Defaults
F7 : Load Setup Defaults

Auto-configuration Function

This parameter automatically enters and locks the optimum settings for the
chipset. If enabled, the entries on the left side of the screen are automatically
set for the mainboard’s optimum performance. The Disabled setting unlocks
the settings without changing them. The default setting is Enabled.

Do not change the values of the Chipset parameters unless
you are a qualified technician. To configure, simply set the
Auto-configuration function to Enabled.

User’s Guide 3-11

Award BIOS

If you install EDO DRAMs, you must change the setting of the
DRAM Type of Bank 0 and 1 or Bank 2 and 3 parameter
(depending on the location of the SIMMs) to EDO

(Extended Data Out). The default setting is FP
(Fast Page) DRAM.

Power Management Setup

The Power Management Setup screen enables you to control the
mainboard’s green features. See the following screen.

ROM PCI/ISA BIOS

POWER MANAGEMENT SETUP

AWARD SOFTWARE, INC.

Power Management : Disabled
PM Control by APM : Yes
Video Off Option : Susp, Stdby→Off
Video Off Method : V/H SYNC+Blank
Suspend Switch : Enabled
Doze Speed (div by) : 2
Stdby Speed (div by) : 3

** PM Timers**
HDD Power Down : Disabled
Doze Mode : Disabled
Standby Mode : Disabled
Suspend Mode : Disabled

** PM Events**
COM Ports Activity : Enabled
LPT Ports Activity : Enabled
HDD Ports Activity : Enabled
PCI/ISA Master Activity : Enabled
IRQ-15 Activity : Enabled

VGA Activity : Enabled
IRQ3 (COM2) : Enabled
IRQ4 (COM1) : Enabled
IRQ5 (LPT2) : Enabled
IRQ6 (Floppy Disk) : Enabled
IRQ7 (LPT1) : Enabled
IRQ8 (RTC Alarm) : Disabled
IRQ9 (IRQ2 Redir) : Enabled
IRQ10 (Reserved) : Enabled
IRQ11 (Reserved) : Enabled
IRQ12 (PS/2 Mouse) : Enabled
IRQ13 (Coprocessor) : Enabled
IRQ14 (Hard Disk) : Enabled
IRQ15 (Reserved) : Enabled

ESC : Quit ↑ ↓ → ← : Select Item
F1 : Help PU/PD/+/- : Modify
F5 : Old Values (Shift) F2 : Color
F6 : Load BIOS Defaults
F7 : Load Setup Defaults

3-12 User’s Guide

Award BIOS

Power Management

This function enables you to control the power-saving modes, display turn
off and HDD power down. The four settings are as follows:

Setting Description

Max Saving Maximize energy conservation by

putting the system into power-saving
mode after a brief period of system
inactivity. The maximum saving default
is 20 sec.

Min Saving A power-saving assignment which

activate after a moderate period of
system inactivity. The minimum saving
default is 40 Min.

Disabled Turns off power-saving.
User Defined Allows you to set the power-saving

options according to your requirements.

PM Control by APM

If your system supports the Advanced Power Management (APM) feature,
set this parameter to Yes.

Video Off Option

This parameter determines when the video off feature activates. The default
is Susp, Stdby→Off.

Video Off Method

If your video display adapter supports the green features, set this parameter
to its default setting which is V/H SYNC+Blank. If not, then set this to

Blank Setting.

The default setting saves more power since it turns off the CRT vertical and
horizontal scanning once the monitor screen blanks. However, with non­green monitors, CRT scanning does not stop even if the monitor screen
blanks.

User’s Guide 3-13

Award BIOS

Screen saver software does not work with this
feature. It is used only to prevent burning in a
static image on the CRT while the monitor is
on. A screen saver cannot display while the
monitor is shut down to save both energy and
the screen.

Suspend Switch

Enabling this parameter also enables the SMI connector on the mainboard
which connects to the lead from a Suspend switch mounted on the system
case. The default setting is Enabled.

Doze & Standby Speeds

These lines allow you to set the speed at which the CPU will operate during
each mode. The number indicates the normal CPU speed divisor.

PM Timers

These parameters enable you to control the time-out settings for the Power
Management Scheme.

HDD Power Down

This time-out setting indicates when to shut down the IDE hard disk. The
settings are from 1 Min to 15 Min or Disabled.

HDD Power Down does not affect SCSI hard
disks.

Doze Mode, Standby Mode, Suspend Mode

These modes set the period of time after which each of these modes
activates.

3-14 User’s Guide

Award BIOS

PM Events

This function allows you to monitor system activities. Enabling the items
under this function resumes system to full power.

IRQ3 to IRQ15

These lines allow you to set the IRQs individually. An activity from any
enabled IRQ resumes the system to normal mode if the IRQ 15 Activity item
in the PM Events is enabled.

User’s Guide 3-15

Award BIOS

PCI and Onboard I/O Setup

This screen configures the PCI Bus slots. All the slots use INTA#. If you
install a card, you should set the card to INTA#.

ROM PCI/ISA BIOS

PCI & ONBOARD I/O SETUP

AWARD SOFTWARE, INC.

PnP BIOS Auto-config : Enabled
Slot 1 Using INT# : AUTO
Slot 2 Using INT# : AUTO
Slot 3 Using INT# : AUTO
Slot 4 Using INT# : AUTO

1st Available IRQ : 10 *
2nd Available IRQ : 11 *
3rd Available IRQ : 9 *
4th Available IRQ : 12 *
PCI IRQ Activated By : Edge
PCI IDE IRQ Map To: : ISA

Onboard PCI/IDE Chip : Enabled

Onboard FDC Controller : Enabled
Onboard Serial Port 1 : COM1
Onboard Serial Port 2 : COM2
Onboard Parallel Port : 3BCH
Parallel Port Mode : Normal

ESC : Quit ↑ ↓ → ← : Select Item
F1 : Help PU/PD/+/- : Modify
F5 : Old Values (Shift) F2 : Color
F6 : Load BIOS Defaults
F7 : Load Setup Defaults

The items with asterisks appear only if the PnP
BIOS Auto-configuration function is disabled.
See the following sections for the description
of the parameters.

PnP BIOS Auto-configuration

When enabled, the BIOS automatically sets the Slots 1, 2, 3 and 4 Using
INT# parameters AUTO and assigns an IRQ for each PCI slot. When
disabled, the 1st, 2nd, 3rd and 4th Available IRQ parameters appear
onscreen allowing you to set an IRQ for each slot manually. The default
setting is Enabled.

3-16 User’s Guide

Award BIOS

Slots 1, 2, 3 and 4 Using INT#

Each PCI slot supports four interrupt pins. These parameters let you select
which interrupt pin to use. The selections are interrupt pins A, B, C, D and
Auto. However, you must always start with interrupt pin A. The INTA pin
is automatically reserved for master function of the PCI device. The
remaining interrupt pins (INTB, INTC, and INTD) are reserved for
multifunction cards.
The default setting for these parameters is Auto. This automatically sets
the system IRQ for the PCI slot.

Available IRQs

These parameters appear only if the PnP BIOS Auto-Configuration
parameter is set to Disabled. These let you assign a system IRQ to each
PCI slot. The available settings are 3, 4, 5, 7, 9, 10, 11, 12, 14, 15 and NA.
The NA setting means no IRQ is assigned to the slot. When assigning, make
sure that the IRQs do not conflict.
Enabling the PnP BIOS Auto-Configuration to Enabled automatically sets
the IRQ for each slot. Therefore, these parameter do not appear onscreen.

PCI IRQ Activated By

This option lets the user set when to activate the PCI IRQ. The available
settings are Edge and Level. The Edge is the start of the signal and Level is
the point at which the signal is high. The default setting for this parameter is

Edge.

PCI IDE IRQ Map To

This feature enables you to control the PCI IDE IRQ mapping. The available
options are ISA, PCI-Slot 1, PCI-Slot 2, PCI-Slot 3, PCI-Slot 4 and PCI­Auto. The default is ISA.

Onboard PCI/IDE Chip

This parameter allows you to enable or disable the PCI/IDE chip on board.
The default setting is Enabled.

User’s Guide 3-17

Award BIOS

Onboard FDC Controller

If enabled, this parameter allows you to connect your floppy disk drives to
the onboard floppy disk connector instead of a separate controller card.
Change the setting to Disabled if you want to use a separate controller
card. The default setting is Enabled.

Onboard Serial Ports 1 and 2

These lines allow you to assign addresses for the board’s serial connectors.
The serial ports can be assigned as follows:

Port Address

COM1 3F8H (onboard serial port 1 default)
COM2 2F8H (onboard serial port 2 default)
COM3 3E8H
COM4 2E8H
Disabled Disables the onboard port

Make sure that the ports have different
assignments.

3-18 User’s Guide

Award BIOS

Parallel Port

This parameter controls the onboard parallel port connector. The options for
this parameter are:

• 378H

• 3BCH

• 278H

• Disabled

The default setting is 3BCH.

If you are using an I/O card with a parallel
port, make sure that the addresses don
conflict.

Parallel Port Mode

The default setting for this function is Normal. If your system has a
parallel interface peripheral device, set this function according to the
enhanced mode that your device supports. The available options are:

’t

• Normal

• EPP (Enhanced Parallel Port)

• ECP (Extended Capabilities Port)

• ECP/EPP

User’s Guide 3-19

Award BIOS

Load BIOS Defaults

This option loads the default values permanently stored in the BIOS ROM.
If the values specified in the Setup utility become corrupted, these defaults
load automatically when you turn on the system power. These settings are
non-optimal and bypass all high-performance features. This is useful if you
are having problems with your current system configuration and need to
determine the cause.
The defaults loaded only affect the BIOS Features Setup and Chipset
Features Setup screens. There is no effect on the Standard CMOS Setup. To
use this feature, highlight this option on the main menu and press e. A line
appears on the screen asking if you want to load the BIOS default values. To
load, press Y then e. Press N to disregard. See the following screen.

ROM PCI/ISA BIOS

CMOS SETUP UTILITY

AWARD SOFTWARE, INC.

STANDARD CMOS SETUP
BIOS FEATURES SETUP
CHIPSET FEATURES SETUP
POWER MANAGEMENT
PCI & ONBOARD I/O SETUP
LOAD BIOS DEFAULTS
LOAD SETUP DEFAULTS

ESC : Quit ↑↓→← : Select Item
F10 : Save & Exit Setup (Shift) F2 : Change Color

Loads BIOS Defaults except Standard CMOS SETUP

Load BIOS Defaults (Y/N)?

PASSWORD SETTING
IDE HDD AUTO DETECTION
SAVE & EXIT SETUP
EXIT WITHOUT SAVING

Load Setup Defaults

The Load Setup Defaults option loads settings which are a combination of
the BIOS defaults and higher-performance settings your system can use as
detected during POST.
The auto-configured settings only affect the BIOS Features Setup, Chipset
Features Setup and PCI Configuration Setup. There is no effect on the
Standard CMOS Setup. To use this feature, highlight this option on the main
screen and press e. A line appears on the screen asking if you want to load

3-20 User’s Guide

Award BIOS

the Setup default values. To load, press Y then e. Press N to disregard.
See the screen below.

ROM PCI/ISA BIOS

CMOS SETUP UTILITY

AWARD SOFTWARE, INC.

STANDARD CMOS SETUP
BIOS FEATURES SETUP
CHIPSET FEATURES SETUP
POWER MANAGEMENT
PCI & ONBOARD I/O SETUP
LOAD BIOS DEFAULTS
LOAD SETUP DEFAULTS

ESC : Quit ↑↓→← : Select Item
F10 : Save & Exit Setup (Shift) F2 : Change Color

Load SETUP Defaults except Standard CMOS SETUP

Load SETUP Defaults (Y/N)?

PASSWORD SETTING
IDE HDD AUTO DETECTION
SAVE & EXIT SETUP
EXIT WITHOUT SAVING

User’s Guide 3-21

Award BIOS

Password Setting

This option lets you set a password. Password prevents unauthorized use of
your computer.

ROM PCI/ISA BIOS

CMOS SETUP UTILITY

AWARD SOFTWARE, INC.

STANDARD CMOS SETUP
BIOS FEATURES SETUP
CHIPSET FEATURES SETUP
POWER MANAGEMENT
PCI & ONBOARD I/O SETUP
LOAD BIOS DEFAULTS
LOAD SETUP DEFAULTS

ESC : Quit ↑↓→← : Select Item
F10 : Save & Exit Setup (Shift) F2 : Change Color

Change/Set/Disable Password

Enter Password: ******

PASSWORD SETTING
IDE HDD AUTO DETECTION
SAVE & EXIT SETUP
EXIT WITHOUT SAVING

To set a password, highlight the password type that you want and press e. At
the prompt, type your password. Your password can be up to 8
alphanumeric characters. Press e to enter your password. At the next
prompt, re-type your password and press e again to confirm the new
password. After the password entry, the screen automatically reverts to the
main screen.
To disable the password, press e when prompted to enter the password. The
screen displays a message confirming that the password has been disabled.

If you use the Password features, the Security
Option line in the BIOS Features Setup
determines when to enter the password.

IDE HDD Auto-detection

If your system has an IDE hard drive, you can use this utility to detect its
parameters and enter them into the Standard CMOS Setup automatically.

ROM PCI/ISA BIOS

CMOS SETUP UTILITY

3-22 User’s Guide

Award BIOS

AWARD SOFTWARE, INC.

HARD DISK TYPE SIZE CYLS HEAD PRECOMP LANDZ SECTOR MODE

Primary Master

Select Primary Master Option (N=Skip) : N

OPTIONS SIZE CYLS HEAD PRECOMP LANDZ SECTOR MODE

1 (Y) 426 826 16 65535 825 63 NORMAL

This utility only detects one set of parameters
for your IDE hard drive. Some IDE drives can
use more than one set of parameters. If your
hard disk is formatted using different
parameters than those detected, you have to
enter the parameters manually. If the
parameters listed don't match the ones used to
format the disk, the information on that disk
won't be accessible. If the auto-detected
parameters displayed do not match those that
used for your drive, ignore them. Press N to
reject the values and enter the correct ones
manually from the Standard CMOS Setup
screen.

Save & Exit Setup

This function automatically saves all CMOS values before leaving Setup.

User’s Guide 3-23

Award BIOS

Exit without Saving

Use this function to exit Setup without saving the CMOS value changes. Do
not use this option if you want to save the new configuration.

3-24 User’s Guide

Award BIOS

NCR SCSI BIOS and Drivers

The NCR 53C810 SCSI BIOS resides on the same flash memory chip as the
system BIOS. To use the onboard NCR BIOS, you need to install a NCR
53C810 SCSI controller card in your system.
All SCSI devices that you install in your system require software drivers.
The NCR SCSI BIOS directly supports SCSI hard disks under DOS,
Windows and OS/2. It also uses DOS-format and SCO UNIX-format
support floppy disk device drivers that come with the NCR 53C810 SCSI
controller card. The DOS-format device drivers are for SCSI devices used
with DOS, Windows NT, Novell NetWare and OS/2. The SCO UNIX­format device drivers are for SCSI devices used with SCO UNIX. These
drivers offer higher performance than the direct BIOS support.
To use the device drivers, you must install them in your system hard disk
drive and add them to your system configuration files. For detailed
installation instructions, see the README files that come with the drivers.

The system board also supports the Award
Flash Memory Writer Utility which allows you
to upgrade the system BIOS. For more
information on this utility, contact your local
distributor.

User’s Guide 3-25

Jumper Summary A

CPU Type

CPU Type JP9 JP10 JP11

P54C-75 1-2 1-2, 3-4 1-2, 3-4
P54C-90 2-3 1-2, 3-4 1-2
P54C-100 2-3 1-2, 3-4 3-4
P54C/CS/CQS-120 2-3 3-4, 5-6 1-2
P54C/CS/CQS-133 2-3 3-4, 5-6 3-4
P54CS/CQS-150 2-3 5-6, 7-8 1-2
P54CS/CQS-166 2-3 5-6, 7-8 3-4

SRAM Type (Optional)

SRAM JP14 JP16

3.3V SRAM Off On

3.3V/5V Mix Mode SRAM On Off

Appendix

Cache Size

Cache Size JP12

256 KB 1-2
512 KB 2-3

Flash ROM Type

Flash ROM JP13

5V 1-2

12V 2-3

User’s Guide A-1

Jumper Summary

CMOS

Function JP15

Default (Normal) 1-2

Clear CMOS 2-3

PS/2 Mouse (Optional)

Function JP6

Enabled Closed

Disabled Open

Onboard Super I/O Controller

SMC 665GT JP5

Enabled 1-2

Disabled 2-3

ECP DMA Channel

ECP DMA Channel JP3 JP4

DMA 3 1-2 1-2
DMA 1 2-3 2-3

A-2 User’s Guide

Onboard Connectors

Connector Function

CN1 AT-keyboard connector
CN2 PS/2 keyboard connector (optional)
CN3 PS/2 mouse connector (optional)
CN4 Power connector
CN5 Parallel port connector
CN6 COM 2 connector
CN7 COM 1 connector
CN8 FDC connector
CN9 IDE 2 connector
CN10 IDE 1 connector
CN11 4-pin fan connector
CN12 2-pin fan connector
CN13 HDD LED connector
CN14 Multifunction connector

Jumper Summary

User’s Guide A-3