Pentium P55-IT User manual

TRADEMARK
All products and company names are
trademarks or registered trademarks of
their respective holders.
P55-IT
ISA PCI MotherBoard
Pentium
with Onboard PCI IDE and Super Multi-I/O.

Page
Chapter 4 - Onboard Technical Information ................. 4-1
P55-IT Board Layout............................................................ 1-2
Contents
Chapter 1 - Introduction ................................................ 1-1
Chapter 2 - Hardware Design......................................... 2-1
Motherboard Layout .............................................................2-1
Connectors and Jumpers.......................................................2-2
System Memory configuration ..............................................2-4
Cache Memory configuration ...............................................2-5
Integrated PCI Bridge...........................................................2-6
Chapter 3 - Award BIOS ................................................ 3-1
Standard CMOS Setup .........................................................3-2
BIOS Features Setup ............................................................3-2
Chipset Features Setup .........................................................3-6
Power Management Setup ....................................................3-9
PCI Configuration Setup ......................................................3-11
Load Setup Defaults .............................................................3-13
Change password .................................................................3-13
IDE HDD Auto Detection.....................................................3-14
Save & Exit Setup ............................................................... 3-16
Exit Without Saving .............................................................3-16
I/O & Memory Map ............................................................. 4-1
Time & DMA Channels Map ............................................... 4-2
Interrupt Map ...................................................................... 4-2
RTC & CMOS RAM Map .................................................... 4-3
Appendix A: Post Codes ...................................................... 4-4
Appendix B: I/O Connector .................................................. 4-8

ROM PCI/ISA BIOS (2A59CPA9)
CMOS SETUP UTILITY
AWARD SOFTWARE, INC.
The "LOAD SETUP DEFAULTS"function loads the system default data directly
fromROMandinitializeassociatedhardwareproperly. Thisfunctionwillbenecessary
when you accept this motherboard, or the system CMOS data is corrupted.
LOAD SETUP DEFAULT
ESC: QUIT :SELECT ITEM
F10:Save & Exit Setup (Shift)F2:Change Color
Time, Date, Hard Disk Type....
Load SETUP Default (Y/N)? Y
STANDARD CMOS SETUP PASSWORD SETTING
BIOS FEATURES SETUP IDE HDD AUTO DETECTION
CHIPSET FEATURES SETUP SAVE & EXIT SETUP
POWER MANAGEMENT VING
PCI CONFIGURATION SETUP
LOAD SETUP DEFAULT
NOTE :

Introduction1-1
Chapter 1
Introduction
The P55-IT motherboard is a high performance system hardware based
on Intel Pentium processor and is equipped with four PCI slots, four
standard ISA slots, Super Multi-I/O controller and dual ports PCI-IDE
connectors for the future expansion. The hardware dimension is 220mm x
280mm with four layer design technology.
Specification
Intel Pentium Processor operating at 50/75, 60/90, 66/100, 60/120, 66/
133, 60/150, 66/166 MHz and P55C/P55CT with 321 ZIF socket 7,
VRM and scalability to accept faster Pentium Processors in the feature.
Supports up to 128 MegaBytes DRAM(minimum of 8 MB) on board(72
Pins SIMM x 4), and BIOS auto DRAM/EDO RAM configuration.(Refer
to Chapter 2-3 System Memory Configuration)
Supports both Fast Page DRAM orEDO DRAM SIMM.
INTEL Triton 82430FX PCIset chipset.
Supports Burst/Pipelined burst synchronous ( The COAST solution ) and
asynchronous L2 Write Back Cache. The cache memory combination
could be 256KB/512KB (32KB*8 or 64KB*8 SRAM respectively).
Support four 16 bits ISA slots, four 32 bits PCI slots, and provides two
independent high performance PCI IDE interface capable of supporting
PIO Mode 3 and Mode 4 devices. The P55-IT supports four PCI Bus
Masters and a jumperless PCI INT# control scheme which reduces
configuration confusion when plug in PCI I/O controller card(s).
Supports AT API (e.g. CD-ROM) devices on both IDE interface.
Supports 1 floppy port(up to 2.88 MB), 1 parallel port (EPP,ECP port),
and 2 serial port (16550 Fast UART compatible).
Supports a PS/2 style mouse and standard AT style keyboard connectors.
Support Award Plug & Play BIOS . The BIOS is stored in Flash EPROM
form. It provides better upgradeability for the system.
Supports CPU Hardware sleep and SMM (System Management Mode).
Supports hardware Turbo switch as well as BIOS hot key switching.
P55-IT utilizes Lithium battery which provides environmental protection
and longer life time.

1-2 P55-IT
Keyboard BIOS
PCI#1 PCI#2
PCI#3
PCI#4
M 4 M 3 M 2 M 1
1 2 1 2
COM2 COM1 PRINTER
FDD CONN.
82371
Figure 1-1
KEYLOCK SPK. RESET G-LED HD-LED SLEEPTB-SW TB-LED
82438 82438
<
<
<
<
U34
U37
U41
U42
<
<
<
<
U28
U29
U32
U33
P55-IT Layout
K/B
CONN.
PS/2
MOUSE
Socket 7
Intel
82437
RTC
<
82438
82438
BIOS
VRM Socket
SRAM Module
J1 J2 J3 J4 J5 J6 JP5 JP14JP9
JP7
1
J7
+12V
GND
GND
JP6
1
<
TAG SRAM (U24)
JP6
1
JP1
1
Intel
IDE 2 CONN. IDE 1 CONN.
JP2
1
JP3
39 40
JPS2
J23
1
JP1537C665
SMC
JP12
1
1
J25
J24 Power Conn.
J10 5
1
1 1
1
1
JPS1
1
81
160 80
BANK0 BANK1
+++
1

Hardware Design 2-1
2-1 Motherboard Layout
Chapter 2
Hardware design
The P55-IT is designed with Intel Triton 82430FX PCIset chipset which is
developed by INTEL Corporation to fully support Intel Pentium PCI/ISA system.
The Intel "Triton" 82430FX PCIset chipset prpovides increased integration and
improved performance designs. The "Triton" chipset provides an integrated IDE
controller with two high performance IDE interfaces for up to four IDE devices
(hard devices, CD-ROM device, etc). The SMC (STANDARD MICROSYSTEMS
CORPORATION) FDC37C665GT Super I/O controller provides the standard PC
I/O function: floppy interface (up to 2.88 MB), two 16 Byte FIFO serial ports and
EPP/ECP capable parallel port. The P55-IT layout is shown in previous page (left
page) for user's reference. Care must be taken when inserting memory modules,
inserting Intel P54C/P55C/P55CT processor, inserting VRM( Voltage Regulator
Module) or even plugging PCI card into associated slots to avoid damaging any
circuits or sockets on board. A cooling fan is strongly recommended when install-
ing P54C/P55C processor due to possible overheat.
The P55-IT supports minimum of 8MB of System Memory and maximum of
128MB while L2 Cache can be 256KB/512KB synchronous (The COAST "Cache-
On-A-STick" solution ) or asynchronous SRAM to increase system performance.(
refer to Page 2-5 Cache Memory Configuration for the details.)
The P55-IT support standard Fast Page or EDO (Extended Data Out or Hyper
Page Mode) DRAM. The EDO DRAM is designed to improve the DRAM read
performance (When L2 Cache is asynchronous SRAM and not installed). The
P55-ITprovides four 72-pins SIMM sites for memory expansion. The socket
support 1M x 32(4MB), 2M x 32(8MB), 4M x 32(16MB), and 8M x 32(32MB)
single-sided or double-sided SIMM modules. The memory timing requires 70 nS
Fast page devices or 60 nS EDO DRAM. Memory parity generation and checking
is not supported. (DRAM Modules may be parity[x 36] or non-parity[x 32].
The P55-IT supports Onboard two PCI IDE connectors, and detects IDE
harddisk type by BIOS utility automatic.
The P55-IT supports Award Plug & Play BIOS for the ISA and PCI cards. The
BIOS can be located in Flash EPROM. The advantage of having Flash EPROM is
much easier to replace BIOS code if necessary.

2-2 P55-IT
1.Power LED(+)
2.N/C
3.GND
4.Keylock
5.GND
+
5
1
1
4
+
+
5 6
2
4 5,6 GND 3,4 +12V
2-2 Connectors and Jumpers
This section describes all of the connectors and jumpers equipped in the
motherboard. Please refer to Figure 1-1 for actual location of each connector and
jumper.
J1 KeyLock - Keyboard lock switch & Power LED connector.
J2 Speaker - connect to the system's speaker for beeping.
1. Speaker
2. N/C
3. GND
4. GND
J3 Reset - Close to restart system.
J4 Turbo Switch : Open for slower speed while Close for
higher speed. A BIOS hot key <CTRL><ALT><+>
also brings system to a higher speed while<CTRL>
<ALT><-> set system to a slower speed(When J4 is open.).
J5 Turbo LED indicator - LED ON when higher speed is
selected.
J6 Power Saving LED indicator - LED ON when system is in
any Saving mode.
J7 The Power supply of the CPU cooling fan
1,2 GND
JP5 IDE LED indicator - LED ON when Onboard PCI IDE
Harddisks activites.
3
1

Hardware Design 2-3
3
1
3
1
3
3
will instantly "wake up".
1 2 3
5
1
J10 PS/2 MOUSE CONNECTOR:
1.RED wire
3.GREEN wire
4.NC
5.YELLOW wire
2.BLUE wire
1
JP1 CPU Install : 1-2 for Intel Pentium P54C, P54CS CPU (Default).
2-3 for Intel Pentium P55C/P55CT CPU.
JP2 Onboard IDE 1: 1-2 for Primary IDE 1 Interrupt IRQ14.
2-3 for None
JP3 Onboard IDE 2 : 1-2 for Secondary IDE 2 Interrupt IRQ15.
2-3 for None
JP14 Sleep/Resume switch : Close to enter sleep mode.
A keystrobe or mouse movement (mouse driver exists). The system
J24 Onboard SMC's chip select :
Open: Normal operation.(Default)
Close: Disable the Onboard SMC chip.
JP15 Keyboard Operation Clock Select :
1-2 The clock rate is depend on the system AT CLOCK
( J25 ). (Default)
2-3 The clock rate is 12MHz.
JP6 EPROM BIOS Select : 1-2 for 5V Flash EPROM (Default)
while 2-3 for 12V Flash EPROM.
1

2-4 P55-IT
JP7 JP9 CLOCK Chip Frequency.
2-3 2-3 x ( 1.5 ) (Default)
1-2 2-3 x ( 2 )
2-3 1-2 x ( 3 )
1-2 1-2 x ( 2.5 )
2-3 System Memory Configuration
The P55-IT supports different type of settings for the system memory. There is no
jumper nor connector needed for memory configuration. Following figures provides
all possible memory cominations.
Clock/CPU Op. JPS1 JPS2 JP7 JP9 J25
JP9
Clock chip is IMI SC484
66/166 MHz CLOSE CLOSE 1-2 1-2 2-3
60/120 MHz CLOSE OPEN 1-2 2-3 2-3
1 2 3
1 2 3
J25 System AT BUS CLOCK Select:
1-2 ATCLK is devided PCICLK* by 3.
2-3 ATCLK is devidedPCICLK* by 4.(Default)
* CPU OP. is CPU operation at 75, 90, 100 MHz, etc.
*Clock is System Clock.
* PCICLK = System Clock / 2
50/75 MHz OPEN OPEN 2-3 2-3 1-2
If system is operating at 66/100 MHz, thanPCICLK is 33Mhz.
* The JP7 and JP9 be used to setting the faster Pentium Processor in the feature.
JPS1
JPS2
66/100 MHz CLOSE CLOSE 2-3 2-3 2-3
JP7
60/90 MHz CLOSE OPEN 2-3 2-3 2-3
60/150 MHz CLOSE OPEN 1-2 1-2 2-3
66/133 MHz CLOSE CLOSE 1-2 2-3 2-3
J25
1 2 3

Hardware Design 2-5
U18
CACHE TAG SRAM Data SRAM Jumper Setting
Size (U24) Install JP10
8K8 x 1 or 32K8 x 8
256KB 16K8 x 1 or U28,29,32,33 1-2
32K8 x 1 U34,37,41,42
16K8 x 1 or 64K8 x 8
512KB 32K8 x 1 U28,29,32,33 2-3
U34,37,41,42
1 2 3
TAG SRAM
Note: When you have a cache module to plug into a 160-pin daul
readout connector. You must make sure that cache modules has a
TAG SRAM(Care must be taken when you inserting the modules. If
you can't sure whether that is a COAST solution modules or not.
Please contact the modules supplier to avoid burned-out and
damaging any modules circuits.) and take off the Onboard's DIP
asynchronous DATA and TAG SRAM. The BIOS can auto-detect the
type and size of the SRAM modules on display System Configura-
tions before the system boots Operating System.
160
80 1
81
KEY
v
Burst/Pipelined burst/Asynchronous SRAM Modules
JP10
U28 U29 U32 U33 U34 U37
DATA SRAM
U24
2-4 Cache Memory Configuration
The second level (L2) of cache is installed in the motherboard to increase the
system performance. The P55-IT supports different type of combinations for the
cache installation. The COAST (Cache-On-A-STick. The cache modules has a
TAG SRAM.) solution provides Onboard flexibility, allowing Onboard to accom-
modate 256KB and 512KB asynchronous, burst and piplined burst SRAM modules.
Jumper JP10 settings is used to Onboard's DIP asynchronous SRAM for differential
such combinations. Please refer to following configurations for the details.
U42 U41

2-6 P55-IT
2-5 Integrated PCI Bridge
The P55-IT utilizes Intel's Triton 82430 PCIset chipset to support Intel Pentium
P54C/P54CS/P55C/P55CT Processor PCI/ISA system. The Intel Triton 82430FX
PCIset chipset consists of the 82437FX Triton system controller (TSC), two
82438FX Triton Data Path (TDP) devices, and one 82371FB PCI ISA/IDE Accel-
erator (PIIX) bridge chip. It provides an interface which translates CPU cycle into
PCI bus cycle, and PCI burst read/write capability. In addition, it provides high
performance PCI arbitor to support four PCI Masters, Rotating Priority Mecha-
nism, and Hidden Arbitration Scheme Minimizes Arbitration Overhead.
There are four interrupts in each PCI slot : INTA#, INTB#, INTC#, and INTD#.
Since the P55-IT adapts the PCI auto-configuration with the system BIOS Setup
utility. When the system is turned on after adding a PCI add-in card, the BIOS
automatically configure interrupts, DMA channels, I/O space, and other
paramaters. You do not have to configures jumpers or worry potential resource
conflicts. Because PCI cards use the same interrupt resource as ISA cards, you must
specify the interrupt used by ISA add-in cards in the BIOS Setup utility.
If however, a "Legacy card" (such as plug paddle card and cable into the ISA slot.)
is plugged in the system, modification in the ROM SETUP UTILITYbecome
necessary. First, enter PCI CONFIGURATION SETUPutility from ROM
SETUP UTILITYmain menu to set the "PCI IDE IRQ MAP TO: ISA".
Second, you must be enter CHIPSET FEATURES SETUP UTILITYfrom ROM
SETUP UTILITYmain menu and set the "Onboard Primary PCI IDE: Disabled
and Onboard Secondary PCI IDE: Disabled." When you plugged the PCI/ISA
IDE card into the system. You will Disabled Onboard Primary and Secondary
PCI IDE from CHIPSET FEATURES SETUP UTILITYtoo.
Some "Legacy card" ( no paddle card and cable.) you can set the system interrupt
request (IRQ) on the "Legacy card" (refer to user's manual of the card) to a proper
system IRQ level (in general, card's Primary assigned to INTA and Secondary
assigned to INTB). If the card is plugged into slot 1(marked PCI#1), you can not
use second slot (marked PCI#2) because the Secondary INT signal takes INTB
from the slot (refer to Page 3-12 for circuit diagram). The user then enter PCI
CONFIGURATION SETUPutility from ROM SETUP UTILITYmain menu
and set the "PCI IDE IRQ MAP TO: PCI-Slot 1" (depend on the slot # where the
Legacy card is plugged).
.

P55-IT 2-4-1
M4
M2
M3
M1
BANK1 Single Side DRAM
BANK2,3 Dual Side DRAM
BANK0 Single Side DRAM
BANK0,1 Dual Side DRAM
>
>
M1,M2(BANK 0) M3,M4( BANK 1) Total Size
1M x 32 (4 MB) Empty 8MB
1M x 32 (4 MB) 1M x 32 (4 MB) 16MB
1M x 32 (4 MB) 2M x 32 (8 MB) 24MB
1M x 32 (4 MB) 4M x 32 (16 MB) 40MB
1M x 32 (4 MB) 8M x 32 (32 MB) 72MB
2M x 32 (8 MB) Empty 16MB
2M x 32 (8 MB) 1M x 32 (4 MB) 24MB
2M x 32 (8 MB) 2M x 32 (8 MB) 32MB
2M x 32 (8 MB) 4M x 32 (16 MB) 48MB
2M x 32 (8 MB) 8M x 32 (32 MB) 80MB
4M x 32 (16 MB) Empty 32MB
4M x 32 (16 MB) 1M x 32 (4 MB) 40MB
4M x 32 (16 MB) 2M x 32 (8 MB) 48MB
4M x 32 (16 MB) 4M x 32 (16 MB) 64MB
4M x 32 (16 MB) 8M x 32 (32 MB) 96MB
8M x 32 (32 MB) Empty 64MB
8M x 32 (32 MB) 1M x 32 (4 MB) 72MB
8M x 32 (32 MB) 2M x 32 (8 MB) 80MB
8M x 32 (32 MB) 4M x 32 (16 MB) 96MB
8M x 32 (32 MB) 8M x 32 (32 MB) 128MB
NOTE : 1. P55-IT support both Fast Page DRAM or EDO
DRAM SIMMs, but they cannot be mixed within
the same memory bank.
3. The 70nS Fast Page Mode or 60nS EDO DRAM is
2. SIMMs may be parrity(x 36) or non parity (x 32).
necessary.
4. "BANK' = 64 Bit = M1, M2 = M3, M4

AWARD BIOS 3-1
CHAPTER 3
AWARD BIOS SETUP
Award's ROM BIOS provides a built-in Setup program which allows user modify the
basicsystemconfiguration and hardware parameters.The modified datawill be stored
inabattery-backedCMOSRAMsodatawillberetainedevenwhenthepoweristurned
off. In general, the information saved in the CMOS RAM stay unchanged unless there
is configuration change in the system, such as hard drive replacement or new
equipment is installed.
It is possible that CMOS had a battery failure which cause data lose in CMOS_RAM.
If so, re_enter system configuration parameters become necessary.
To enter Setup Propgram
Power on the computer and press <Del> key immediately will bring you into BIOS
CMOS SETUP UTILITY.
The menu displays all the major selection items and allow user to select any one of
shown item. The selection is made by moving cursor (press any direction key ) to
the item and press 'Enter' key. An on_line help message is displayed at the bottom
of the screen as cursor is moving to various items which provides user better
understanding of each function. When a selection is made, the menu of selected
item will appear so the user can modify associated configuration parameters.
Figure 3-1 CMOS SETUP UTILITY
ROM PCI/ISA BIOS (2A59CPA9)
CMOS SETUP UTILITY
AWARD SOFTWARE, INC.
STANDARD CMOS SETUP PASSWORD SETTING
BIOS FEATURES SETUP IDE HDD AUTO DETECTION
CHIPSET FEATURES SETUP SAVE & EXIT SETUP
POWER MANAGEMENT SETUP EXIT WITHOUT SAVING
PCI CONFIGURATION SETUP
LOAD SETUP DEFAULTS
ESC: QUIT :SELECT ITEM
F10:Save & Exit Setup (Shift)F2:Change Color
Time, Date, Hard Disk Type....

3-2 CHAPTER 3
3-1 STANDARD CMOS SETUP
Choose "STANDARD CMOS SETUP" in the CMOS SETUP UTILITY Menu
(Fig.3-1). The STANDARD CMOS SETUP allows user to configure system setting
suchascurrentdateandtime,typeofharddiskdriveinstalledinthesystem,floppydrive
type, and the type of display monitor. Memory size is auto_detected by the BIOS and
displayedforyour reference. Whena field is highlighted(direction keys tomove cursor
and <Enter> key to select), the entries in the field will be changed by pressing <PgDn>
or <PgUp> keys or user can enter new data directly from the keyboard.
Figure 3-2 STANDARD CMOS SETUP
Selectthe"BIOSFEATURESSETUP"optioninthe CMOSSETUPUTILITYmenu
allows user to change system related parameters in the displayed menu. This menu
shows all of the manufacturer's default values of P55-IT. Again, user can move the
cursor by pressing direction keys and <PgDn> or <PgUp> keys to modify the
parameters. Pressing [F1] key to display help message of the selected item.
This setup program also provide 2 convinent ways to load the default parameter data
from BIOS[F6] or CMOS[F7] area if shown data is corrupted. This provide the system
a capability to recover from any possible error.
3-2 BIOS FEATURES SETUP
NOTE: The "Halt On :" field is to determine when to halt the system by the BIOS if error
occurred during POST.
NOTE: If hard disk Primary Master/Slave and Secondary Master/Slave were used Auto,
than the hard disk size and model will be auto-detect on display during POST.
ROM PCI/ISA BIOS (2A59CPA9)
STANDARD CMOS SETUP
AWARD SOFTWARE, INC.
ESC:QUIT :SELECT ITEM PU/PD/+/-:Modify
F1 : Help (Shift)F2 :Change Color F3:Toggle Calender
Base Memory :640K
Extended Memory :15360K
Other Memory :384K
Total Memory :16384K
Date (mm:dd:yy) :Sat, Jul 01 1995
Time (hh:mm:ss) :8:30:50
Daylight Saving :Disabled
HARD DISKS TYPE SIZE CYLS HEAD PRECOMP LANDZONE SECTORS MODE
Primary Master : Auto 0 0 0 0 0 0 LBA
Primary Slave : Auto 0 0 0 0 0 0 Normal
Secondary Master : Auto 0 0 0 0 0 0 Normal
Secondary Slave : Auto 0 0 0 0 0 0 Normal
Drive A : 1.2M,5.25 in.
Drive B : None
Video : EGA/VGA
Halt On : All Errors

AWARD BIOS 3-3
ROM PCI/ISA BIOS (2A59CPA9)
BIOS FEATURES SETUP
AWARD SOFTWARE, INC.
Figure 3-3 BIOS FEATURES SETUP
Esc : Quit : Select Item
F1 : Help PU/PD/+/- : Modify
F5 : Old Values (Shift)F2 : Color
F7 : Load Setup Defaults
Note: The Security Option contians "setup" and "system". The "setup" indicates
that the password setting is for CMOS only while the " system" indicates the
password setting is for both CMOS and system boot up procedure.
Virus Warning: This category flashes on the screen. During and after the system
boots up, any attempt to write to the boot sector or partition table of the hard disk
drive will halt the system and the following error message will appear, in the mean
time, you can run an anti-virus program to locate the problem. Default value is
Disabled
Enabled : Activates automatically when th e system boots up causing a warning
message to appear when anything attempts to access the boot sector or
hard disk partition table.
Disabled:No warning message to appear when anything attempts to access the boot
sector or hard disk partition table.
CPU Internal Cache / External Cache:These two categories speed up memory
access. However, it depends on CPU/chipset design. The default value is Enable.
If your CPU without Internal Cache then this item "CPU Internal Cache" will not
be show.
Enabled:Enable cache.
Disable : Disable cache.
Quick Power On Self Test:This category speeds up Power On Self Test (POST)
after you power on the computer. If it is set to Enable, BIOS will shorten or skip
some check items during POST.
Enabled : Enable quick POST.
Disabled: Normal POST.
Virus Warning :Disabled Video BIOS Shadow :Enabled
CPU Internal Cache :Enabled C8000-CBFFF Shadow :Disabled
External Cache :Enabled CC000-CFFFF Shadow :Disabled
Quick Power On Self Test :Enabled D0000-D3FFF Shadow :Disabled
Boot Sequence :A,C D4000-D7FFF Shadow :Disabled
Swap Floppy Drive :Disabled D8000-DBFFF Shadow :Disabled
Boot Up Floppy Seek :Enabled DC000-DFFFF Shadow :Disabled
Boot Up NumLock Status :On
Boot UP System Speed :Low
Gate A20 option :Fast
Typematic Rate Setting : Disabled
Typematic Rate (Chars/Sec) :6
Type matic Delay (Msec) : 250
Security Option :Setup
F6 : Load BIOS Defaults

3-4 CHAPTER 3
Boot Sequence: This category determines which drive computer searches first for
the DOS(Disk Operating System). Default value is A,C.
A,C : System will first search for floppy disk drive then hard disk drive.
C,A : System will first search for hard disk drive then floppy disk drive.
Typematic Rate Setting: This determines the typematic rate.
Enabled : Enable typematic rate and typematic delay programming.
Disabled: Disable typematic rate and typematic delay programming. The system
BIOS will use default value of this 2 items and the default is controlled
by keyboard.
Typematic Rate(Chars/Sec):
6 : 6 characters per second. 8 : 8 characters per second.
10: 10 characters per second. 12: 12 characters per second.
15: 15 characters per second. 20: 20 characters per second.
24: 24 characters per second. 30: 30 characters per second.
Swap Floppy Drive: The swap floppy drive. Default value is Disabled.
Enabled : Floppy A & B will be swapped under the DOS.
Disabled:Floppy A & B will be not swap.
Boot Up Floppy Seek: During POST,BIOS will determine if the floppy disk drive
installed is 40 or 80 tracks. 360K type is 40 tracks while 760K, 1.2M and 1.44M are
all 80 tracks. The default value is Enabled.
Enabled : BIOS searches for floppy disk drive to determine if it is 40 or 80 tracks,
Note that BIOS can not tell from 720K, 1.2M or 1.44M drive type as
they are all 80 tracks.
Disabled: BIOS will not search for the type of floppy disk drive by track number.
Note that there will not be any warning message if the drive installed
is 360K.
Boot Up NumLock Status: The default value is On.
On : Keypad is number keys.
Off : Keypad is arrow keys.
Boot UP System Speed: It selects the default system speed, the speed that the
system will run at immediately after power up.
High: Set the speed to high.
Low : Set the speed to low.
NOTE: The board default value is LOW in the field. Boot the system to controller
turbo or De-turbo by Onboard J4 (Turbo Switch).
Gate A20 Option: The default value is Fast.
Normal: The A20 signal is controlled by keyboard controller or chipset hardware.
Fast : Default : Fast.The A20 signal is controlled by Port 92 or chipset specific
method.

AWARD BIOS 3-5
Typematic Delay(Msec): When holding a key, the time between the first and
second character displayed.
250 : 250msec.
500 : 500 msec.
750 : 750 msec.
1000: 1000 msec.
Security Option: This category allows you to limit access to the system and Setup,
or just to Setup. The default value is Setup.
System:The system will not boot and access to Setup will be denied if the correct
password is not entered at the prompt.
Setup : The system will boot, but access to Setup will be denied if the incorrect
password is not entered at the prompt.
NOTE: To disable security, select PASSWORD SETTING at Main Menu and
then you will be asked to enter password. Do not type anything and just press
<Enter>, it will disable security. Once the security is disabled, the system will
boot and you can enter Setup freely.
Video BIOS Shadow: It determines whether video BIOS will be copied to RAM,
however, it is optional from chipset design. Video Shadow will increase the video
speed.
Enabled :Video shadow is enabled.
Disabled:Video shadow is disabled.
C8000 - CBFFF Shadow :
CC000 - CFFFF Shadow:
D0000 - D3FFF Shadow:
D4000 - D7FFF Shadow:
D8000 - DBFFF Shadow:
DC000 - DFFFF Shadow:
These categories determine whether optional ROM will be copied to RAM by 16K
byte or 32K byte per/unit and the size depends on chipset.
Enabled : Optional shadow is enabled.
Disabled: Optional shadow is disabled.

3-6 CHAPTER 3
3-3 CHIPSET FEATURES SETUP
Choose the "CHIPSET FEATURES SETUP"in the CMOS SETUP UTILITY
menu to display following menu.
ROM PCI/ISA BIOS (2A59CPA9)
CHIPSET FEATURES SETUP
AWARD SOFTWARE, INC.
PCI Concurrency : Disable
PCI Streaming : Disabled
DRAM Timing : 60ns PCI Bursting : Enabled
Onboard FDC Controller : Enabled
Onboard Serial Port 1 : COM 1
System BIOS Cacheable : Disabled Onboard Serial Port 2 : COM 2
Video BIOS Cachlable : Enabled Onboard Parallel Port : 278H
8 Bit I/O Recovery Time : 1 Parallel Port Mode : ECP + EPP
16 Bit I/O Recovery Time : 1 ECP Mode DMA Select : DMA3
Memory Hole At 15M-16M : Disabled
IDE HDD Block Mode : Enabled
IDE Primary Master PIO : Auto
IDE Primary Slave PIO : Auto ESC : Quit : Select Item
IDE Secondary Master PIO : Auto F1 : Help PU/PD/+/- : Modify
IDE Secondary Slave PIO : Auto F5 : Old Valume (Shift )F2 : Color
Onboard Primary PCI IDE : Enabled F6 : Load BIOS Defaults
Onboard Secondary PCI IDE : Enabled F7 : Load Setup Defaults
Figure 3-4 CHIPSET FEATURES SETUP
If you don't use the Onboard IDE connector, than use On-card
(PCI or ISA card) IDE connector. You will set Onboard Primary
IDE: Disabled and Onboard Secondary IDE: Disabled from
CHIPSET FEATURES SETUP UTILITY.
The Onboard PCI IDE cable should be equal to or less than
18 inches (45 cm.).
Note:
DRAM Timing: The default value is 60ns.
60ns :2 (faster) Burst Wait State, for 60~70ns Fast Page Mode/EDO DRAM.
70ns : 3 (slower) Burst Wait State, for 70ns Fast Page Mode/EDO DRAM.
Video BIOS Cacheable: The default value is Enabled.
Enabled : This field Enabled the Video BIOS Cacheable to speed up the VGA
Performance.
Disabled: Disabled the Video BIOS Cacheable function.
8/16 Bit I/O Recovery Time: The default value is 1.
8 Bit I/O Recovery Time: This field defines the recovery time from 1 to 8 for 8-bit
I/O.
16 Bit I/O Recovery Time: To define the recovery time from 1 to 4 for 16-bit I/O.
PCI Slot IDE 2nd Channel : Enabled

AWARD BIOS 3-7
Memory Hole At 15M-16M: The default value is Disabled.
Disabled:Normal Setting.
Enabled : This field enableds the main memory (15~16MB) remap to ISA BUS.
IDE HDD Block Mode: The default value is Enabled.
Enabled :Enabled IDE HDD Block Mode. The HDD transfer rate is better than
Disable.
Disabled:Disable IDE HDD Block Mode.
IDE Primary Master PIO:The default value is Auto.
Auto :BIOS will automatically detect the Onboard Primary Master PCI IDE
HDD Accessing mode.
Mode0~4: Manually set the IDE Accessing mode.
IDE Primary Slave PIO: The default value is Auto.
Auto :BIOS will automatically detect the Onboard Primary Slave PCI IDE
HDD Accessing mode.
Mode0~4: Manually set the IDE Accessing mode.
IDE Secondary Master PIO: The default value is Auto.
Auto : BIOS will automatically detect the Onboard Secondary Master PCI IDE
HDD Accessing mode.
Mode0~4: Manually set the IDE Accessing mode.
IDE Secondary Slave PIO: The default value is
Auto :BIOS will automatically detect the Onboard Secondary Slave PCI IDE
HDD Accessing mode.
Mode0~4:Manually set the IDE Accessing mode.
Onboard Primary PCI IDE: The default value is Enabled.
Enabled :Enable Onboard 1st channel IDE port.
Disabled :Disable Onboard 1st channel IDE port. When use On-card (PCI or ISA
card) IDE connector.
Onboard Secondary PCI IDE: The default value is Enabled.
Enabled :Enable Onboard 2nd channel IDE port.
Disabled : Disable Onboard 2nd channel IDE port When use On-card (PCI or ISA
card) IDE connector.
PCI Slot IDE 2nd Channel: The default value is Enabled.
Enabled :Enable secondary IDE port and BIOS will assign IRQ15 for this port.
Disabled : Disable secondary IDE port and IRQ15 is available for other device.
PCI Concurrency: The default value is Enabled
PCI Streaming: The default value is Enabled

3-8 CHAPTER 3
PCI Bursting: The default value is Enabled.
Enabled :Enable PCI BUS Concurrency/Streaming/Bursting Access timing.
Disabled :Disable PCI BUS Concurrency/Streaming/Bursting Access timing.
Onboard FDC Controller: The default value Enabled.
Enabled:EnabletheOnboard SMCCHIP'sfloppydriveinterface controller.
Disabled:Disable the Onboard SMC CHIP's floppy drive interface controller. When
use On-card ISA FDC's controller.
Onboard Serial Port 1: This fields allow the user to sellect the serial port. The
default value is COM1.
COM1:Enable Onboard Serial port 1 and address is 3F8H.
COM2:Enable Onboard Serial port 1 and address is 2F8H.
COM3:Enable Onboard Serial port 1 and address is 3E8H.
COM4: Enable Onboard Serial port 1 and address is 2E8H .
Disabled: Disable Onboard SMC CHIP's Serial port 1.
Onboard Serial Port 2: This fields allow the user to sellect the serial port. The
default value is COM2.
COM1:Enable Onboard Serial port 2 and address is 3F8H.
COM2:Enable Onboard Serial port 2 and address is 2F8H.
COM3:Enable Onboard Serial port 2 and address is 3E8H.
COM4:Enable Onboard Serial port 2 and address is 2E8H .
Disabled: Disable Onboard SMC CHIP's Serial port 2.
Onboard Parallel port: This fields allow the user to sellect the LPT port. The
default value is 378H.
378H :Enable Onboard LPT port and address is 378H.
278H :Enable Onboard LPT port and address is 278H.
3BCH :Enable Onboard LPT port and address is 3BCH.
Disabled:Disable Onboard SMC CHIP's LPT port.
NOTE: Parallel Port address is 378H/3BCH that selects the rounting of IRQ7 for LPT1.
Parallel Port address is 278H that selects the rounting of IRQ5 for LPT1.
Parallel port Mode: This fields allow the user to sellect the parallel port mode.
The default value is ECP+EPP.
Normal :Standard mode. IBM PC/AT Compatible bidirectional parallel port.
EPP :Enhanced Parallel Port mode.
ECP :Extended Capabilities Port mode.
EPP+ECP: ECP Mode & EPP Mode.
ECP Mode DMA Select:This fields allow the user to sellect DMA1 or DMA3 for
the ECP mode. The default value is DMA3.
DMA1 :The filed selects the rounting of DMA1 for the ECP mode.
DMA3 :The filed selects the rounting of DMA3 for the ECP mode.