Intel VX PENTIUM PCI User manual

INTEL VX PENTIUM PCI
MAINBOARD
USER’S MANUAL
Version #7502/004/1196
P/N #73-75021040-000

Trademark Acknowledgments
Trademark Acknowledgments:
•IBM PC, PC/XT and PC/AT all are registered trademarks of International
Business Machines Corporation.
•Pentium is a trademark of Intel Corporation.
•AMD is a registered trademark of Advanced Micro Devices Inc.
•AWARD is a registered trademark of Award Software Inc.
•PCI is registered trademark of PCI Special Interest Group.
•MS-DOS and WINDOWS NT are registered trademarks of Microsoft
Corporation.
The manufacturer reserves the right to modify any product’s specifications in order
to meet advances in hardware and software technology.

Table of Content
Table of Content
1. INTRODUCTION.............................................................................................................1
1.1 OVERVIEW................................................................................................................1
1.2 GREEN PC POWER MANAGEMENT.......................................................................3
1.3 CHECKLIST ...............................................................................................................5
1.4 PT-7502-2 SYSTEM BOARD SPECIFICATIONS......................................................6
1.5 STATIC ELECTRICITY PRECAUTION....................................................................8
2. HARDWARE CONFIGURATION..................................................................................10
MAINBOARD COMPONENT LOCATIONS.....................................................................10
2.1 JUMPERS & CONNECTORS...................................................................................13
2.2 EXTERNAL CACHE CONFIGURATION................................................................26
2.3 MEMORY INSTALLATION ....................................................................................27
3 AWARD BIOS SETUP ...................................................................................................33
3.1 STANDARD CMOS SETUP.....................................................................................36
3.2 BIOS FEATURES SETUP .......................................................................................41
3.3 CHIPSET FEATURES SETUP ................................................................................51
3.4 POWER MANAGEMENT SETUP...........................................................................55
3.5 PNP/PCI SLOT CONFIGURATION........................................................................60
3.6 LOAD SETUP DEFAULTS .....................................................................................63
3.7 INTEGRATED PERIPHERALS SETUP..................................................................65
3.8 USER PASSWORD SETTING.................................................................................65
3.9 IDE HDD AUTO DETECTION ...............................................................................65
3.10 SAVE & EXIT SETUP...........................................................................................25
3.11 EXIT WITHOUT SAVING....................................................................................25

Statements
"This is an ENERGY STARTM compliant product."
The Environmental Protection Agency ENERGY STARTM program defines that as an Ally
of this program the specified manufacturer must produce systems, or system components
which enable a computer system to operate and draw 30 watts or less of power in idle mode.
Although the EPA do not endorse any particular product or service, the program is designed
to offer a cooperative effort between the EPA and the component manufacturer (Ally) to
provide energy saving products and education to customers."
"FCC Approval"
The PT-7502-2 motherboard has been approved for FCC Class B when properly installed in a
barebone configuration using the following case/power supply:
Brand Model FCC ID
Procase PC-109 SM JPJPINE429G1
09
Procase PC-609 T/M JPJPINE429G6
09
Procase PC-709 T/M JPJPINE429G7
09
FCC Notice:
Information to the User
This equipment has been tested and found to comply with the limits for a Class B digital
device, pursuant to Part 15 of FCC Rules. These limits are designed to provide reasonable
protection against harmful interference in a residential installation. This equipment generates,
uses and can radiate radio frequency energy and, if not installed and used in accordance with
the instructions, may cause harmful interference to radio communications. Should you
experience interference to radio or television reception then the user is encouraged to try to
correct this interference by one or more of the following measures:
Re-locate the receiving antenna.
Increase the separation between the equipment and receiver.
Connect the equipment into an outlet on a circuit different from that to which the receiver is
connected.
Consult the dealer or an experienced radio/TV technician for help and for additional
suggestions.
The user may find the following booklet prepared by the Federal Communications
Commission helpful:
“How to identify and Resolve Radio-TV Interference Problems.” This booklet is available
from the U.S. Government Printing Office, Washington, DC20402, Stock No. 004-000-
00345-4.
FCC Warning
The user is cautioned that changes or modifications not expressly approved by the
manufacturer could void the user’s authority to operate this equipment.
Note : In order for the installation of this product to maintain compliance with the limits for
a Class B device, shielded

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Introduction
1. Introduction
1.1 Overview
•The PT-7502-2 motherboard offers 64-bit programming architecture compatible with the
software base of 486 and 586 microprocessors. It is a reliable motherboard, using a Intel
i430VX chipset and a multi-layer printed circuit board. The chipset consists of a TVX
(Host Bridge & Cache Memory Controller), two TDX (Write Buffer Data Path
Controller), and 82371SB, PIIX3 (ISA Bridge & System I/O Controller).
•The PT-7502-2 is a PCI Local Bus motherboard. The four Master Mode PCI Local Bus
slots fully comply with the PCI (Peripheral Component Interconnect) Local Bus
Specification Rev. 2.1. The speed of I/O peripherals can be dramatically increased by
connecting PCI compatible interface cards to the PCI Local Bus slots on the PT-7502-2.
PINE is a member of PCI SIG (Special Interest Group).
•The PT-7502-2 is a ‘green’ design motherboard which means if there is no system activity
for a specific period of time (this period is software programmable), the PT-7502-2 will
slow down its original working frequency to zero. This will help to save power
consumption, reduce energy related pollution and protect our environment.
•The PT-7502-2 has the full complement of I/O on-board: FDC, PCI local bus Enhanced
IDE, printer port, COM ports, and dual USB port as well.
1.2 Green PC Power Management
The Green PC mode is a state that minimizes power consumption. There are two different
levels of Green PC modes :
•Standby mode. The spin motor of the HDD can be turned off.
•Inactive mode / Sleep Mode. The PT-7502-2 can stop the CPU clock under this mode.
The PT-7502-2 will be placed into Green PC mode as a result of one of the following events :
When the SMI header is connected to a momentary switch, pressing the switch will put
PT-7502-2 into Green mode.
Expiration of the internal Green PC Timer. The Green PC Timer is software programmable
which can configure in the "Power Management Setup" option of the BIOS CMOS setup. The
power management feature will be enabled as default; however, the timing may differ due to
production control. It is recommended that you re-adjust these timings according to your
personal requirements/set-up.
Through system activity monitoring and management, the PT-7502-2 will not go into Green
PC mode if any of the following activity is detected:
•PCI Master 0 activity •COM port activity
•PCI Master 1 activity •ISA master & DMA activity
•PCI Master 2 activity •IDE activity
•LPT port activity •Floppy activity
•COM port activity •Keyboard activity

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Introduction
1.3 Checklist
Please check your PT-7502-2 package to ensure that it contains the following items :
•PT-7502-2 Main Board
•PT-7502-2 User Manual
•Jumper Setting List
•Cable Pack included
1 x 40 way flat cables
1 x FDC flat cable
1 x DB9 flat cable and one DB25 flat cable with a bracket (COM 1 & COM 2)
1 x DB25 flat cable with a bracket (Printer port)
•Cache Module (either 512KB , 256KB or not bundle)
If any of these items are missing or damaged, please contact your local dealer or sales
representative for assistance.
1.4 PT-7502-2 System Board Specifications
•Intel i430VX PCIsetTM chipset
•Support either 75/90/100/120/133/166/180/200 MHz PENTIUMTM CPUs with 321 pin
ZIF socket
•Support Pentium P55C
•Support Dual Voltage Regulator Module
•Support Cyrix 6x86, AMD K5 CPUs
•Uses 72-pin SIMM modules x 4 auto banking in multiple configuration up to 128MB
•Support Both Fast Page Mode and Extended DATA Output (EDO) DRAM module
•Support SDRAM/EDO DRAM/Page Mode DRAM use 168-pin DIMMx2
•Support cache module socket, cache module options 256KB or 512KB pipeline burst
SRAM module
•4 PCI Local Bus slots, and 3 x 16 bits ISA Bus slots
•All 4 PCI slots support Master mode
•System BIOS support 4 IDE harddisk drivers that don't need device driver for S/W
application, the capacity each harddisk can large than 528MB up to 8.4GB
•PCI Bus master IDE interface on board with two connectors support 4 IDE devices in 2
channel, the PCI IDE Controller supports PIO mode 0 to Mode 4 at maximum transfer
rate of 16.67 MB/s and Bus master IDE DMA Mode 2.
•On board super Multi-I/O chip that support 2 serial port with 16550 Fast UART
compatible, 1 parallel port with SPP, EPP and ECP capabilities, and a floppy disk drive
interface.
•Support PS/2TM connector.
•Support the Universal Serial Bus (U.S.B.) (option)
•System BIOS supports NCR810 SCSI BIOS firmware and Green feature function, Plug
and Play Flash ROM

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Introduction
1.5 Static Electricity Precaution
Static electricity can easily damage your PT-7502-2 mainboard.
Observing a few basic precautions can help you safeguard against damage that could result in
expensive repairs. Follow the measures below to protect your equipment from static
discharge:
-Keep the mainboard and other system components in their anti-static packaging until
you are ready to install them.
-Touch a grounded surface before you remove any system component from its
protective anti-static packaging. A grounded surface within easy reach is the
expansion slot covers at the rear of the system case or any other unpainted portion of
the system chassis.
-During configuration and installation, touch a grounded surface frequently to discharge
any static electric charge that may build up in your body. Another option is to wear a
grounding wrist strap.
-When handling a mainboard or an adapter card, avoid touching its components.
Handle the mainboard and adapter cards either by the edges or by the mounting
bracket that attaches to the slot opening in the case.

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Hardware Configuration
2. Hardware Configuration
Mainboard Component Locations

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Hardware Configuration
2.1 Jumpers & Connectors
Jumpers/Connector Description
J2 Keyboard Connector
J3 Power Supply Connector
J6 Power-LED Keylock & Connector
J6 Speaker Connector
J7 HDD LED Connector
J7 Reset Switch
J7 External Battery Selector
J8 PS/2 Mouse Connector
JP1 Clear CMOS
JP4 AT Bus Clock Selector
JP5 FlashRom Voltage Selector
JP7A, JP7B DIMM Socket Voltage Select
JP8A, JP8B CPU Speed Selectors
JP9A, JP9B CPU Internal Clock Speed Selectors
JP10 P54C/P55C CPU Voltage Selectors
J2 Keyboard Connectors
A standard five-pin female DIN keyboard connector is located at the rear of the board J2.
Pin Description
1Keyboard Clock
2Keyboard Data
3N.C.
4Ground
5+5VDC
J2 USB Universal Serial Bus Connector
Pin Description Pin Description
1+5 VDC 7+5 VDC
2DATA - 8DATA -
3DATA + 9DATA +
4Ground 10 Ground
5N.C. 11 N.C.
COM 1 : Serial port #1
COM 2 :Serial port #2
PRN 1 :Parallel port

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Hardware Configuration
J3 Power Supply Connectors
The power supply connectors are two six-pin male header connectors. Plug the dual
connectors from the power directly onto the board connectors.
Most of the power supply have two leads. Each lead has six wires. Two of which are black,
orient the connectors, so the black wires are in the middle.
The black wires should be in the middle
P1 P12
Pin Description Pin Description
1Power Good 7Ground
2+ 5V DC 8Ground
3+12V DC 9- 5V DC
4- 12V DC 10 +5V DC
5Ground 11 +5V DC
6Ground 12 +5V DC
J6 Power-LED Keylock & Power-LED Connector
J6 is a keylock connector that enables and disables the keyboard and the Power-LED on the
case.
Pin Description
1LED Output
2NC
3Ground
4Keylock
J6 SPK Speaker Connectors
Attach the system speaker to connector J6.
Pin Description
1DATA Out
2NC
3Ground
4+ 5V
J7 HDD LED Connector
Pin Description
15V
2Active Low

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Hardware Configuration
J7 Reset Switch Connector
Attach the Reset switch cable to this connector.
Setting Description
Open Normal Mode
Short Reset System
J7 External Battery Selectors
Description J7
Normal Mode (default) Open
J8 PS/2 Mouse Connector
2 x 4 pin header
PS1 : PS/2 Mouse Connector
JP1 Clear CMOS
Setting Description
Open Default
Short Clear CMOS
JP4 AT Bus Clock Selector
Description JP4
PCI Clock/4 (default) 1-2
PCI Clock/3 2-3
Note: CPU Speed=60MHz or 66MHz JP4 set to 1-2
CPU Speed=50MHz JP4 set to 2-3
JP5 Flash ROM Voltage Selector
The mainboard can uses two types of Flash ROM - 5 volt and 12 volt. Set the mainboard for
either type with jumper JP5. You can update both types with new BIOS files as they come
available.
Description JP5
12 volt Flash ROM 1-2
5 volt Flash ROM 2-3

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Hardware Configuration
JP7A, JP7B DIMM Socket Voltage Selectors
Voltage Selectors
3.3V
5.0V
Note: All synchronous DRAM JP7 must be set to 3.3V position.
JP8A, JP8B CPU Speed Selectors
The mainboard has a clock generator that lets you choose the CPU frequency by settings
jumpers JP8A, JP8B. You can set the CPU speed to 50/60MHz or 66MHz as shown below.
CPU Speed
Jumpers 66MHz 60MHz 55MHz 50MHz
JP8A Shut Open Open Shut
JP8B Open Shut Open Shut
Note : Default set at 66Mhz
JP9A, JP9B CPU Internal Clock Speed Selectors
Intel Cyrix AMD JP9A JP9B
x2.0 (default) x2.0 Reserved Shut Open
x1.5 Reserved x1.5 Open Open
x2.5 Reserved Reserved Shut Shut
x3.0 Reserved Reserved Open Shut
Note: CPU Internal Clock Speed = External Input Clock x (table list) factor.
JP10 P54C/P55C CPU Voltage Selectors
JP10 3.5V 2.9V 2.8V 2.7V 3.3V
ON A B C D E
A B C D E A B C D E A B C D E A B C D E A B C D E
(default)
Note : JP10 all OFF : 2.5V

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Hardware Configuration
2.2 External Cache Configuration
This mainboard supports a cache module socket you can install pipeline burst SRAM on a
cache module in the cache module slot, the cache module size can either 256KB or 512KB.
Cache Type Size Data Chip Size Tag Chip Size
Pipeline Burst 256KB 32k 32 x 2pcs 8k 8, 16k 8 or 32k 8 x 1pc
512KB 32k 32 x 4pcs 16k 8 or 32k 8 x 1pc
512KB 64k 32 x 2pcs 16k 8 or 32k 8 x 1pc
2.3 Memory Installation
The mainboard lets you add up to 128MB of system memory via SIMM & DIMM sockets on
the mainboard. Four SIMM sockets on the mainboard are divided into two banks: Bank 0,
Bank 1. Each bank consists of two 72-pin SIMM modules. The mainboard supports the
following memory configurations and DIMM socket consists of one 168-pin DIMM Module.
SIMM SIMM DIMM DIMM Total Memory
Socket 1&2 Socket 3&4 DIM 1 DIM 2
4MBx2 None None None 8MB
8MBx2 None None None 16MB
16MBx2 None None None 32MB
32MBx2 None None None 64MB
None 4MBx2 None None 8MB
None 8MBx2 None None 16MB
None 16MBx2 None None 32MB
None 32MBx2 None None 64MB
None None 8MB None 8MB
None None 16MB None 16MB
None None 32MB None 32MB
None None 64MB None 64MB
None None None 8MB 8MB
None None None 16MB 16MB
None None None 32MB 32MB
None None None 64MB 64MB
4MBx2 4MBx2 None None 16MB
8MBx2 8MBx2 None None 32MB
16MBx2 16MBx2 None None 64MB
32MBx2 32MBx2 None None 128MB
None None 8MB 8MB 16MB
None None 16MB 16MB 32MB
None None 32MB 32MB 64MB
None None 64MB 64MB 128MB
4MBx2 None None 8MB 16MB
8MBx2 None None 16MB 32MB
16MBx2 None None 32MB 64MB
32MBx2 None None 64MB 128MB

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Hardware Configuration
SIMM SIMM DIMM DIMM Total Memory
Socket 1&2 Socket 3&4 DIM 1 DIM 2
None 4MBx2 8MB None 16MB
None 8MBx2 16MB None 32MB
None 16MBx2 32MB None 64MB
None 32MBx2 64MB None 128MB
None 8MBx2 8MB None 24MB
None 8MBx2 16MB None 32MB
None 8MBx2 32MB None 48MB
None 8MBx2 64MB None 80MB
8MBx2 None None 8MB 24MB
8MBx2 None None 16MB 32MB
8MBx2 None None 32MB 48MB
8MBx2 None None 64MB 80MB
16MBx2 4MBx2 None None 40MB
16MBx2 8MBx2 None None 48MB
16MBx2 16MBx2 None None 64MB
16MBx2 32MBx2 None None 96MB
None 16MBx2 8MB None 40MB
None 16MBx2 16MB None 48MB
None 16MBx2 32MB None 64MB
None 16MBx2 64MB None 96MB
16MBx2 None None 8MB 40MB
16MBx2 None None 16MB 48MB
16MBx2 None None 32MB 64MB
16MBx2 None None 64MB 96MB
32MBx2 4MBx2 None None 72MB
32MBx2 8MBx2 None None 80MB
32MBx2 16MBx2 None None 96MB
32MBx2 32MBx2 None None 128MB
32MBx2 None None 8MB 72MB
32MBx2 None None 16MB 80MB
32MBx2 None None 32MB 96MB
32MBx2 None None 64MB 128MB
None 32MBx2 8MB None 72MB
None 32MBx2 16MB None 80MB
None 32MBx2 32MB None 96MB
None 32MBx2 64MB None 128MB
Note:
1. Bank0 (SIMM1 &SIMM2) and DIM1 the two types DRAM module cannot be used at the same time.
2. Bank0 (SIMM3 & SIMM4) and DIM2 the two types DRAM module cannot be used at the same
time.
3.All SIMMs and DIMM module speed must faster than 70ns.
4.All SIMMs and DIMM module can use either 1-sided or 2-sides
5.SIMM socket DRAM type: Fast Page Mode or Extend DATA Out (EDO)
6. DIMM socket DRAM type Fast Page Mode or Extend Data Out (EDO) or synchronous DRAM
(SDRAM)
7. Synchronous DRAM (SDRAM JP7) must set to 3.3V position

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BIOS Setup
3 . Award BIOS Setup
Enter the Award Setup program's Main Menu as follows:
1. Turn on or reboot the system. The following message appears at the bottom of the
screen:
"Press <DEL> to enter setup, ESC to skip memory test"
2. Press the <DEL> key to enter the Award BIOS setup program and the following
screen appears: ROM PCI / ISA BIOS (2A59GF51)
CMOS SETUP UTILITY
AWARD SOFTWARE, INC.
3. Choose an option and press <ENTER>. Modify the system parameters to reflect the
options installed in the system. (See the following sections for more information.)
4. Press <ESC> at anytime to return to the Main Menu.
5. In the Main Menu, choose "SAVE AND EXIT SETUP" or <F10> to save your
changes and reboot the system.
Choosing "EXIT WITHOUT SAVING" or <ESC> ignores your changes and exits
the program.
STANDARD CMOS SETUP INTEGRATED PERIPHERALS
BIOS FEATURES SETUP PASSWORD SETTING
CHIPSET FEATURES SETUP IDE HDD AUTO DETECTION
POWER MANAGEMENT SETUP SAVE & EXIT SETUP
PNP/PCI CONFIGURATION EXIT WITHOUT SAVING
LOAD SETUP DEFAULTS
Esc : Quit ↑↓ →←: Select Item
F10 : Save & Exit Setup (Shift) F2 : Change Color
Abandon all dates & Exit SETUP

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BIOS Setup
3.1 STANDARD CMOS SETUP
Run the Standard CMOS Setup as follows:
1. Choose "STANDARD CMOS SETUP" from the Main Menu and a screen with a list
of items appears.
2. Use the arrow keys to move between items and to select values. Modify the selected
fields using PgUp/PgDn/+/-keys. Some fields let you enter numeric values directly.
Data (mm/dd/yy) Type the current date
Time (hh:mm:ss) Type the current time
Primary master and slave Choose from the standard hard disk types 1 to 46, or "User"
Secondary master and slave defined. IF you choose "User", run the IDE HDD Auto
detection function from the Main Menu, or enter the HDD
information directly from the keyboard and press <Enter>.
If you use Auto mode the BIOS can Auto detect HDD type
and do not enter any HDD information from the keyboard.
Drive A & B Choose 360KB 5 1/4"
1.2MB 5 1/4"
720MB 3 1/2"
1.44MB 3 1/2"
Not installed
ROM PCI/ISA BIOS (2A59GF51)
CMOS SETUP UTILITY
AWARD SOFTWARE, INC.
Date (mm:dd:yy) : Thu, May 6 1996
Time (hh:mm:ss) : 17 : 54 : 42
HARD DISKS TYPE SIZE CYLS HEAD PRECOMP LANDZ SECTOR MODE
Primary Master : AUTO 00 0 0 0 AUTO
Primary Slave : NONE 00 0 0 0 0 ---------
Secondary Master : NONE 00 0 0 0 0 ---------
Secondary Slave : NONE 00 0 0 0 0 ---------
Drive A : 1.44M, 3.5 in.
Drive B : None Base Memory : 640K
Extended Memory : 15360K
Video : EGA/VGA Other Memory : 384K
Halt On : All Errors Total Memory : 16384K
Esc : Quit ↑↓ →←: Select Item PU/PD/+/- : Modify
F1 : Help (Shift) F2 : Change Color

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BIOS Setup
Video Choose Monochrome,
Color 40x25
VGA/PGA/EGA,
Color 80x25, or
Not installed
Halt On Choose All Errors (Default)
No Errors
All, But Keyboard
All, But Diskette
All, But Disk/Key
3. After you have finished with the Standard CMOS Setup program, press the <ESC>
key to return to the Main Menu.

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BIOS Setup
3 .2 BIOS FEATURES SETUP
Run the BIOS Features Setup as follows.
1. Choose "BIOS FEATURES SETUP" from the Main Menu and a screen with a list of
items appears.
ROM PCI / ISA BIOS (2A59GF51)
BIOS FEATURES SETUP
AWARD SOFTWARE, INC.
2Use the arrow keys to move between items and to select values. Modify the selected
fields using the PgUp/PgDn/+/-Keys. An explanation of <F> keys follows:
<F1>: "Help" gives options available for each item.
<F2>: Change color
<F5>: Get the old values. The user started the current session with these
values.
<F6>: Load all options in the BIOS Features Setup with the BIOS Default
values.
<F7>: Load all options in the BIOS Features Setup with the Setup Default
values.
Virus Warning : Disabled Video BIOS shadow : Enabled
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 : C,A D4000-D7FFF Shadow : Disabled
Swap Floppy Drive : Disabled D8000-DBFFF Shadow : Disabled
Boot Up Floppy Seek : Disabled DC000-DFFFF Shadow : Disabled
Boot Up NumLock Status : On
Boot Up System Speed : High
Gate A20 Option : Fast
Typematic Rate Setting : Disabled
Typematic Delay (Chars/sec) : 6
Typematic Delay (Msec) : 250
Security Option : Setup
Assign IRQ VGA : Disabled
Esc: Quit ↑↓ →←: Select Item
F1: Help PU/PD/+/- : Modify
F5: Old Value (Shift) F2 : Color
F6: Load BIOS Defaults
F7: Load Setup Defaults

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BIOS Setup
A short description of the screen items follows:
Virus Warning Choose Enabled or Disabled. Enable this option and a
SYSTEM WARNING MESSAGE appears when the system
detects a virus.
CPU Internal Cache Choose Enabled or Disabled. This option lets you enable
the CPU's internal cache memory.
External Cache Choose Enabled or Disabled. This option lets you enable
the external cache memory. For better performance, make
sure you always choose "Enabled."
Quick Power On Self Test Choose Enabled or Disabled. Enabled provides a fast POST
and boot-up speed.
Boot Sequence The default setting first to boot from drive C: You can
reverse this sequence with "A:C:", will then drive A: boot
directly.
Swap Floppy Driver Choose Enabled or Disabled. When Enabled Floppy drives
A & B are swapped under DOS.
Boot Up Floppy Seek Choose Enabled or Disabled. "Disabled" provides a fast
boot and reduces the possibility of damage to the heads.
Boot Up Num Lock Status Choose On or Off. On puts numeric keypad in Num Lock
mode at boot-up. Off puts this keypad in arrow key mode
at boot-up.
Boot Up System Speed Choose High or Low. This option lets you choose system
bootup speed. The default is High.
Gate A20 Option Choose Fast or Normal. This item lets you use the GA20
from the chipset or the keyboard controller.
Typematic Rate Setting Choose Enabled or Disabled. Enable this option to adjust
the keystroke repeat rate.
Typematic Rate (chars/Sec) Choose the rate a character keeps repeating.
Typematic Delay (Msec) Choose how long after you press a key that a character
begins repeating.

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BIOS Setup
Security Option Choose Setup, or System. Use this feature to prevent
unauthorized system boot-up or unauthorized use of BIOS
Setup.
"System" - Each time the system boots the password prompt
appears.
"Setup" - Password prompt only appears if you attempt to
enter the Setup program.
Assign IRQ for VGA Choose Enable or Disable, when Enable, assign IRQ for
VGA
Video BIOS Shadow VIDEO shadow copies BIOS code from slower ROM to
faster RAM. BIOS can then execute from RAM.
3. After you have finished with the BIOS Features Setup program, press the <ESC> key
and then follow screen instructions to save or disregard your settings.