Page 1
VC31
MAINBOARD
MANUAL
DOC No.: M01301
Rev. : A0
Date : 7, 2001
Part No. : 25-11618-00
Page 2
Notice
Handling Precautions
Warning:
1. Static electricity may cause damage to the integrated circuits on
the motherboard. Before handling any motherboard outside of its
protective packaging, ensure that there is no static electric charge
in your body.
2. There is a danger of explosion if the battery is incorrectly
replaced. Replace only with the same or an equivalent type
recommended by the manufacturer.
3. Discard used batteries according to the manufacturer’s
instructions.
4. Never run the processor without the heatsink properly and firmly
attached. PERMANENT DAMAGE WILL RESULT!
Observe the following basic precautions when handling the motherboard
or other computer components:
n Wear a static wrist strap which fits around your wrist and is
connected to a natural earth ground.
n Touch a grounded or anti-static surface or a metal fixture such as a
water pipe.
n Avoid contacting the components on add-on cards, motherboards,
and modules with the golden fingers connectors plugged into the
expansion slot. It is best to handle system components by their
monting brackets.
The above methods prevent static build-up and cause it to be discharged
properly.
Trademark
All trademarks mentioned in this manual are registered properly of
the respective owners.
Handling Precautions
This manual may not, in whole or in part, be photocopied, reproduced,
transcribed, translated, or transmitted in whatever form without the
written consent of the manufacturer, except for copies retained by the
purchaser for personal archival purposes.
Page 3
T able of Contents
Table of Contents
Quick Reference (German) G- 1
Quick Reference (French) F- 1
Quick Reference (Spanish) S-1
Quick Reference (Japanese) J-1
Quick Reference (Chinese) C-1
Quick Reference (Simplified Chinese) |||||||||||||SC-1
Chapter 1 Overview
Package Checklist .......................................................................... 1-2
The VC31 Mainboard ................................................................ 1-2
Main Features ................................................................................ 1-3
ACPI Ready ................................................................................... 1-4
FIC Unique Innovation for Users (NOVUS) -
Enhanced Mainboard Features and System Support .................... 1-5
Chapter 2 Installation Procedures
Quick Reference (from Page 2-2 to 2-4) .......................................... 2-2
Mainboard Layout .................................................................... 2-2
1). Clear CMOS, Clear Password, FSB Speed Select .......... 2-3
2). Front Panel Block Cable Connection ............................ 2-3
3). CPU Fan Installation .................................................... 2-4
1). Set System Jumpers/Switches ................................................... 2-4
Clear CMOS: SW1-1 .......................................................... 2-4
Clear Password: SW1-2 ..................................................... 2-5
FSB Speed Select: SW2 ..................................................... 2-6
2). Install Memory Modules .......................................................... 2-6
3). Install the CPU .......................................................................... 2-7
4). Install Expansion Cards ............................................................. 2-8
5). Connect Devices ....................................................................... 2-9
Floppy Diskette Drive Connector ..................................... 2-9
IDE Device Connectors ..................................................... 2-10
Power Connectors ............................................................. 2-10
Fan Connectors ................................................................. 2-11
Wake-On-LAN Connector................................................. 2-11
CD Audio-In Connector .................................................... 2-12
Front Panel Block and Speaker Connector ........................ 2-12
PS/2 Keyboard and Mouse Connector ............................. 2-13
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VC31 Mainboard Manual
Optional LAN Connector .................................................. 2-14
SPDIF Connector .............................................................. 2-14
Universal Serial Bus Connectors ....................................... 2-14
Serial Port Connectors ....................................................... 2-15
Printer Connector .............................................................. 2-15
Audio I/O Jacks ................................................................ 2-16
Game/MIDI Connector ...................................................... 2-16
Chapter 3 BIOS Setup
CMOS Setup Utility ....................................................................... 3-1
Standard CMOS Setup ................................................................... 3-2
Advanced BIOS Features .............................................................. 3-4
Advanced Chipset Features .......................................................... 3-7
Integrated Peripherals .................................................................... 3-9
Power Management Setup ............................................................. 3-14
PnP/PCI Configurations ................................................................. 3-18
PC Health Status ............................................................................ 3-19
Frequency/Voltage Control ............................................................ 3-20
Load Fail-Safe Defaults .................................................................. 3-21
Load Optimized Defaults ................................................................ 3-21
Supervisor/User Password ............................................................ 3-21
Save and Exit Setup ....................................................................... 3-22
Exit without Saving ........................................................................ 3-22
ii
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Overview
Chapter 1
Overview
The new microATX, 478-pin FC-PGA2 1stMainboard VC31 supports a full
range of the latest generation Intel® Pentium 4 processors. The leading edge
chipset Intel 845 MCH was designed for coworking with Pentium 4 (up to
2GHz) and Northwood® processor (min 2GHz) in the 478-pin packagebasedon
the VRM 9.0 spec and 400MHz.Built using the leading edge technology the
Intel Pentium® 4 processors provide a significant performance over previous
Pentium®III processors.
The most cost-effective P4 CPU level solution based on mainstream SDRAM
architecture. Two PC133 SDRAM sockets allow for up to 2GB memory capacity (based on 512MB memory technology).
Support for the Ultra DMA/100protocol and its high-speed interface further
ensures that data transfer speeds are improved, especially for long sequential
transfers required by audio/visual applications.
The 1stMainboard VC31 comes with a versatile range of I/O features such as
2 serial ports, 1 parallel port, 1 LAN jack (optional), 1 PS/2 mouse and keyboard
connector, 4 USB connectors, 1 media connector (front audio, Line-in, Lineout and Mic-in, game/MIDI port). Ample expansion is available through 3 PCI,
1AGP 4X, and 1 CNR to meet the requirement for enjoying the P4 CPU benefits
in internet applicatons, video/3D graphics performance, and so forth.
Other key features are Remote On/Off, Auto Power Failure Recovery, Keyboard /Mouse Power On, integrated temperature monitoring and system fan
control. Included also is CD Pro with enhanced drivers and the new CD Plus
package containing a few bundled soft-ware solutions such as Norton
AntiVirus, Norton Ghost, Norton V irtual Drive.
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VC31 Mainboard Manual
Package Checklist
If you discover any item below was damaged or lost, please contact your
vendor.
þ The mainboard þ This user manual
þ One FDD cable þ One HDD cable
þ One A T A/100 cable þ T wo software CDs (CD Pro, CD Plus)
The VC31 Mainboard
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Overview
Main Features
■ Easy Installation
||BIOS with support for Plug and Play , auto detection of IDE hard drives,
||LS-120|drives, IDE ZIP drives, Windows 95, W indows 98/SE, Windows
||ME, Windows NT , W indows 2000, |and OS/2.
■ Leading Edge Chipset
Intel 845 provides integrated DRAM controllers with new Dynamic Power
Management Architecture (DPMA), concurrent PCI , AGP compliant and
USB. The built-in audio and vedio features of the Intel chipset 845 (MCH
+ ICH2) provide better visual performance with the Dynamic Video Memory
T echnology (DVMT) properties.
■ V ersatile Main Memory Support
Accepts up to 2GB SDRAM using two DIMMs of 64, 128, 256, 512MB
1GB with support for lightning-fast SDRAM (100/133MHz).
■ Flexible Processor Support
Onboard CPU socket supports:
Intel® Pentium 4 / Northwood Processor (478-pin FC-PGA2 package)
1.4 GHz - 2.0 GHz* and up* at 400 system data bus
(*: not test yet)
■ Onboard IrDA Connector
An IrDA port integrated with front panel block connector for wireless
infrared connections is available.
■ CNR, AGP , and PCI Expansion Slots
One CNR, one AGP Bus expansion slot, and three PCI Bus expansion
slots provided the room to install a full range of add-on cards.
■■
■ Super Multi Input/Output (I/O) Support
■■
Integrated Plug and Play multi-I/O chipset features two high-speed UART
16550 compatible serial ports, one EPP/ECP capable parallel port, one
game port, and one FDD connector.
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VC31 Mainboard Manual
■ LAN Support (optional)
Onboard (optional) LAN controller with one optional jack integrated
with other rear panel I/O connectors pvovides users with a convenient
connection with network environment.
■ Integrated Audio Subsystem
Embedded audio features in the ICH2 with an integrated PCI audio controller, DOS games compatible engine. The subsystem utilizes line-out,
line-in, and MIC external jacks, one joystick port with MIDI interface.
■■
■ Convenient Rear Panel USB Connection Support
■■
T wo USB ports integrated in the rear I/O panel and two extra USB ports
for either front or rear panel connection allow convenient and high-speed
Plug and Play connections to the growing number of USB compliant
peripheral devices on the market.
■ Enhanced PCI Bus Master IDE Controller with Ultra DMA 33/66/100
Support
Integrated Enhanced PCI Bus Master IDE controller features two dualchannel connectors that up to four Enhanced IDE devices, including CDROM and Tape Backup Drives, as well as Hard Disk Drives supporting
the new Ultra DMA 100 protocol. Standard PIO Mode 3, PIO Mode 4,
DMA Mode 2, DMA Mode 4, UltraDMA-100 Mode 5 devices are also
supported.
■■
■ Onboard Accelerated Graphics Port (AGP)
■■
The motherboard is installed one 32-bit AGP 4 X bus with a dedicated
66MHz/133MHz path from the graphics card to the system memory offering much greater bandwidth than the 32-bit PCI bus does. AGP enabled
3D graphics cards can directly access main memory across this fast path
instead of using local memory .
ACPI Ready
This mainboard fully implements the new ACPI (Advanced Configuration and
Power Interface) 1.0B Hardware and BIOS requirement. If you install ACPI
aware of operating system, such as Windows 98, you fully utilized the power
saving under ACPI. (Windows ME/2000 Professional supports ACPI func-
tions.)
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Overview
FIC Unique Innovation for Users (NOVUS) -
Enhanced Mainboard Features and System Support
■■
■ LogoGenie
■■
A user friendly GUI supporting Windows 95/98/98SE (not W indows 2000/
NT/ME), LogoGenie allows you to customize, create or select a Logo
which will be displayed when the system is booting.
NOTE:
1. LogoGenie supports Award BIOS only.
2. If you create a Logo file (.bmp) by LogoGenie, the file size must
||||be 640 x 464 x 256 colors.
T o enable this utility, please proceed as follows:
1 . Insert CD Pro (4.2 or above). Select LogoGenie from the Menu and
follow the installation instructions.
2 . After LogoGenie has been installed, go to Windows Start Box.
In Programs Menu, select LogoGenie 2.0, then select LogoGenie.
3 . Press F1 to read Help file to understand how to use this software if
it is new to you.
■■
■ BIOS Guardian
■■
BIOS Guardian by default is enabled. It must be disabled in order to
reflash BIOS, thus effectively acts as a fire-wall against viruses that can
attack the BIOS while the system is running.
WARNING: While excute Step3 below, please do not turn off the
sytsem power in order to avoid BIOS damage.
BIOS Guardian can be disabled as follows:
1 . Go to BIOS Set Up Menu. (Press Del key while booting.)
2 . Go to Advanced BIOS Features Set Up Submenu.
3. Disable BIOS Guardian.
4. Save the setting, and restart system.
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VC31 Mainboard Manual
NOTE: However, if it is disabled and while boot the system, the
POST screen will be held and shows you the message to let you
know the current status of BIOS Guardian. To press G key will enable the BIOS Guardian again; or simply to press the space bar
will continue the booting process.
■■
■ Easy Key
■■
Instead of completing the multi-layered BIOS setup process these 3 Easy
Key functions provide direct access to Sub-Menu’s when completing
BIOS settings adjustments.
Easy-Keys are as follows:
Ctrl + c: T o enter clock settings menu.
Ctrl + p: To load Performance Default settings and restart.
Ctrl + f: T o load Fail-Safe Default settings and restart.
■■
■ Overclock Partner
■■
Should the system not start because clock speed settings have been
increased to a speed incompatible with the system, the Overclock Partner
allows you to reboot at system default settings, protecting hardware from
any damages.
Complete the following steps:
1. Turn the system off.
2 . Restart while holding down the Insert key. It is important that the
Insert key is held down until the default clock speed is shown on
the POST screen.
3 . Enter BIOS settings menu, and re-set clock speed desired or default.
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Installation Procedures
Chapter 2
Installation Procedures
The mainboard has several user-adjustable jumpers on the board that allow you to
configure your system to suit your requirements. This chapter contains information
on the various jumper settings on your mainboard.
To set up your computer, you must complete the following steps:
■ Step 1 - Set system jumpers/switches
■ Step 2 - Install memory modules
■ Step 3 - Install the Central Processing Unit (CPU)
■ Step 4 - Install expansion cards
■ Step 5 - Connect ribbon cables, cabinet wires, and power supply
■ Step 6 - Set up BIOS software
■ Step 7 - Install supporting software tools
WARNING: Excessive torque may damage the mainboard. When
using an electric screwdriver on the mainboard, make sure that
the torque is set to the allowable range of 5.0 ~ 8.0kg/cm.
Mainboard components contain very delicate Integrated Circuit
(IC) chips. To prevent static electricity from harming any of the
mainboard’s sensitive components, you should follow the
following precautions whenever working on the computer:
1. Unplug the computer when working on the inside.
2. Hold components by the edges and try not to touch the IC
||||chips, leads, or circuitry.
3. Wear an anti-static wrist strap which fits around the wrist.
4. Place components on a grounded anti-static pad or on the bag
that came with the component whenever the components are
separated from the system.
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VC31 Mainboard Manual
Quick Reference (from Page 2-2 to 2-4)
Mainboard Layout
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Installation Procedures
1). Clear CMOS, Clear Password,
FSB Speed Select
2). Front Panel Block Cable Connection
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VC31 Mainboard Manual
3). CPU Fan Installation
This connector is linked to the CPU fan. When the system is in some power saving
mode, the CPU fan will turn off; when it reverts back to full on mode, the fan will turn
back on. Without sufficient air circulation, the CPU may overheat resulting in
damage to both the CPU and the mainboard.
Damage may occur to the mainboard and/or the CPU fan if these pins are
used incorrectly. These are not jumpers, do not place jumper caps over these
pins.
1). Set System Jumpers/Switches
Jumpers are used to select the operation modes for your system. Some jump-
ers on the board have three metal pins with each pin representing a different
function. A 1 is written besides pin 1 on jumpers with three pins. To set a
jumper, a black cap containing metal contacts is placed over the jumper pin/s
according to the required configuration. A jumper is said to be shorted when
the black cap has been placed on one or two of its pins. The types of jumpers
used in this manual are shown below:
NOTE: Users are not encouraged to change the jumper settings
not listed in this manual. Changing the jumper settings improperly
may adversely affect system performance.
Clear CMOS: SW1-1
The CMOS RAM is powered by the onboard button cell battery. To clear the
RTC data: (1) Turn off your computer. (2) Move the CMOS Clear switch SW1-
1 to On (Enabled). (3) Turn on your computer to display CMOS checksum
error. (4) Turn off your computer. (5) Move the CMOS Clear switch SW1-1 to
Off (Disabled). (6) Turn on your computer. (7) Hold down the Delete key
when boots. (8) Enter the BIOS Setup to re-enter user preferences.
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Installation Procedures
Clear Password: SW1-2
This switch allows you to enable or disable the password configuration. You
may need to enable this switch by moving it to the On (Enabled) position if
you forget your password. To clear the password setting: (1) Turn off your
computer. (2) Move the Clear Password switch SW1-2 to On (Enabled). (3)
Turn on your computer. (4) Hold down the Delete key during bootup and enter
BIOS Setup to re-enter user preferences. (5) Turn off your computer, (6) Move
the Clear Password switch SW1-2 to Off (Disabled). (7) Turn on your com-
puter for the new settings to take effect.
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VC31 Mainboard Manual
FSB Speed Select: JP1
This jumper allows you to select the FSB speed of your mainboard.
2). Install Memory Modules
1. Locate the DIMM slots on the mainboard.
2. Install the DIMM straight down into the DIMM slot using both hands.
3. The clip on both ends of the DIMM slot will close up to hold the DIMM
in place when the DIMM reaches the slots bottom.
Press the clips with both hands to remove the DIMM.
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Installation Procedures
3). Install the CPU
The mainboard has built-in Switching Voltage Regulator to support CPU Vcore
autodetection. That is, It has the ability to detect and recognize the CPU
voltage, clock, ratio and enables users to set up the CPU frequency from the
BIOS Setup Screen. Users can adjust the frequency through Frequency /
Voltage Control of the BIOS Setup Screen.
To install the CPU, do the following:
1. Lift the lever on the side of the CPU socket.
2. Handle the chip by its edges and try not to touch any of the pins.
3. Place the CPU in the socket. Do not force the chip. The CPU should slide
easily into the socket.
4. Swing the lever to the down position to lock the CPU in place.
5. Place the cooling fan with heatsink on top of the installed CPU.
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VC31 Mainboard Manual
4). Install Expansion Cards
This section describes how to connect an expansion card to one of your
systems expansion slots. Expansion cards are printed circuit boards that,
when connected to the mainboard, increase the capabilities of your system.
For example, expansion cards can provide video and sound capabilities. The
mainboard features one CNR, one AGP, and three PCI bus expansion slots.
CAUTION: Make sure to unplug the power supply when adding or
removing expansion cards or other system components. Failure to
do so may cause severe damage to both the mainboard and
expansioncards.
Always observe static electricity precautions.
Please read “Handling Precautions” at the start of this manual.
To install an expansion card, follow the steps below:
1. Remove the computer chassis cover and select an empty expansion
slot.
2. Remove the corresponding slot cover from the computer chassis.
Unscrew the mounting screw that secures the slot cover and pull
the slot cover out from the computer chassis. Keep the slot cover
mounting screw nearby.
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Installation Procedures
3. Holding the edge of the peripheral card, carefully align the edge
connector with the expansion slot.
4. Push the card firmly into the slot. Push down on one end of the
expansion card, then the other. Use this rocking motion until the
addon card is firmly seated inside the expansion slot.
5. Secure the board with the mounting screw removed in Step 2. Make
sure that the card has been placed evenly and completely into the
expansion slot.
6. Replace the computer systems cover.
7. Setup the BIOS if necessary.
8. Install the necessary software drivers for the expansion card.
5). Connect Devices
Floppy Diskette Drive Connector
This connector provides the connection with your floppy disk drive.
The red stripe of the ribbon cable must be the same side with the Pin 1.
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VC31 Mainboard Manual
IDE Device Connectors
These two connectors are used for your IDE hard disk drives, CD drives, LS-
120|drives, or IDE ZIP drives. The red stripe of the ribbon cable must be the
same side with the Pin 1.
Power Connectors
The 20-pin male block connector is connected to the ATX power supply. The
neighboring socket is for the auxiluary power plug use. The 4-pin male block
connector is for the 12V power use. All the three connectors are linked with
your ATX power supply. The plug from the power supply will only insert in
one orientation because of the different hole sizes. Find the proper orientation
and push down firmly making sure that the pins are aligned.
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Installation Procedures
Fan Connectors
The two connectors, CPU_FAN, SYS_FAN are linked to the CPU fan, case fan,
respectively. CHIP_FAN can be used either with the case fan or North Bridge
chip fan. For preventing the system and chip from overheat damage, the fans
on this board will keep running when the system in suspend mode.
Wake-On-Lan Connector
This 3-pin connector allows the remove servers to manage the system that
installed this mainboard via your network adapter which also supports WOL.
When you install such a LAN card, please read its installation guide for more
information.
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VC31 Mainboard Manual
CD Audio-In Connectors
The connectors are for CD-ROM drive audio input use.
Front Panel Block and Speaker Connector
This block connector includes the connectors for linking with HDD LED,
power LED, dual power LED, power button, suspend button, reset button, and
IR on the front panel of the system case. Please identify polarities of plug
wires for the case speaker and LEDs. Please ask vendor about this information
when you buy them and install the system by yourself. The plug wires polari-
ties of these buttons will not affect the function.
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Installation Procedures
Power LED is connected with the system power indicator to indicate whether
the system is on/off. It will blink when the system enters suspend mode.
IR is used to communicate with another IR device via a 4-wire plug.
Reset Button is connected to the reset button. Push this switch to reboot the
system instead of turning the power button off and on.
HDD LED is connected to the IDE device indicator. This LED will blink when
the hard disk drives are activated.
LED(G) is in green light when the system in power on status.
LED(Y) is in yellow light when the system in suspend mode.
Power Button is connected with power button. Push this switch allows the
system to be turned on and off rather than using the power supply button.
Suspend Button is connected with suspend button. To enter the system into
power saving mode, simply press this button when the system is in full-on
mode.
Speaker is connected with the case speaker.
PS/2 Keyboard and Mouse Connector
These two 6-pin female (PS/2 keyboard is purple color and PS/2 mouse is
green color) connectors are used for your PS/2 keyboard and PS/2 mouse.
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VC31 Mainboard Manual
Optional LAN Connector
The mfg. optional RJ45 LAN jack is used for the LAN cable plug.
SPDIF Connector
If your board has a pinhead JP2 onboard, it
is used for some system vendor use.
Universal Serial Bus Connectors
These two black connectors integrated on the edge of the board are used for
linking with USB peripheral devices. This board also provides a connector
USB2/3 for linking with the two extra USB connections. They can link with
front panels of some system cases. Please note your operating system must
support USB features, such as MS Windows 98, MS Windows 95 OSR2.5 with
USB Supplement.
The figure below is the pin assignment
of the USB2/3.
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Installation Procedures
Serial Port Connectors
COM1/2 (9-pin D-sub male connector with teal color) allow you to connect
with your devices that use serial ports, such as a serial mouse or an external
modem.
Printer Connector
This 25-pin D-Sub female burgundy-colored connector is attached to your
printer.
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VC31 Mainboard Manual
Audio I/O Jacks
LINE_OUT (lime) can be connected to headphones or preferably powered
speakers. LINE_IN (light blue) allows tape players or other audio sources to
be recorded by your computer or played through the LINE_OUT. MIC_IN
(pink) allows microphones to be connected for voice input. The mainboard
also provides you with a front panel audio port connector, FNT_AUDIO,
when needed. Its pin definitions were presented below.
Game/MIDI Connector
This 15-pin female gold-colored connector allows you to connect game joy-
sticks or game pads. Connect MIDI devices for playing or editing audio.
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BIOS Setup
Chapter 3
BIOS Setup
The mainboard comes with the chip that Award BIOS that contains the ROM
Setup information of your system. (This chip serves as an interface between
the processor and the rest of the mainboards components.) This section
explains the information contained in the Setup program and tells you how to
modify the settings according to your system configuration.
CMOS Setup Utility
A Setup program, built into the system BIOS, is stored in the CMOS. This
Setup utility program allows updates to the mainboard configuration settings.
It is executed when the user changes system configuration; user changes
system backup battery; or the system detects a configuration error and asks
the user to run the Setup program. Use the arrow keys to select and press
Enter to run the selected program.
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VC31 Mainboard Manual
Standard CMOS Setup
The Standard CMOS Setup screen is displayed above. Each item may have
one or more option settings. The system BIOS automatically detects memory
size, thus no changes are necessary. Use the arrow keys to highlight the item
and then use PgUp or PgDn keys to select the value you want in each item.
Date
To set the date, highlight the Date field and then press Page Up/Page
Down or +/- keys to set the current date. Follow the month, day and year
format.
Time
To set the time, highlight the Time field and then press Page Up/Page Down
or +/- keys to set the current time. Follow the hour, minute, and second
format.
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BIOS Setup
Hard Disks
This field records the specifications for all non-SCSI hard drives installed
in the system. The onboard PCI IDE connectors provide Primary and Sec-
ondary channels for connecting up to four IDE hard disks or other IDE
devices. Each channel can support up to two hard disks, the first of which
is the Master and the second is the Slave.
Hard Disk Configurations
Capacity: The hard disk size. The unit is Bytes.
Cylinder: The cylinder number of the hard disk.
Head: The read/write head number of hard disk.
Precomp: The cylinder number at which the disk drive
changes the write current.
Landing Zone: The cylinder number that the disk drive heads
(read/write) are seated when the disk drive is
parked.
Sector: The sector number of each track defined on the
hard disk.
Drive A / Drive B
This field records the types of floppy drives installed in the system. To
enter the configuration value for a particular drive, highlight its corre-
sponding field and then select the drive type using the left- or right-arrow
key.
Floppy 3 Mode Support
This is a Japanese standard floppy type drive. The standard stores 1.2MB
in a 3.5 inch diskette.
Video
Set this field to the type of video display card installed in the system.
Halt On
This field determines which types of errors will cause the system to halt.
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VC31 Mainboard Manual
Advanced BIOS Features
Virus Warning
This feature starts the virus scan tool to detect if boot virus in boot sector
of the first hard disk drive when booting up.
The options are: Enabled, Disabled.
CPU L1 & L2 Cache
When enabled, improves the system performance. Disable this item when
testing or trouble-shooting. The options are: Enabled, Disabled.
Quick Power On Self T est
When enabled, allows the BIOS to bypass the extensive memory test.
The options are: Enabled, Disabled.
Hard Disk Boot Priority
This feature will auto detect all hard disks of bootable device on the sys-
tem. It also allows users to select hard disk device booting priority.
First/Second/Third Boot Device
This feature allows user to select the boot device priority. The options are:
Floppy, LS120, Hard Disk, CDROM, ZIP100, LAN, Disabled.
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BIOS Setup
Boot Other Device
This feature allows user to select the boot device priority.
The options are: Enabled, Disabled.
Swap Floppy Drive
Allows you to switch the order in which the operating system accesses
the floppy drives during boot up.
The options are: Enabled, Disabled.
Boot Up Floppy Seek
When enabled, assigns the BIOS to perform floppy diskette drive tests by
issuing the time-consuming seek commands.
The options are: Enabled, Disabled.
Boot Up Numlock Status
When set to On, allows the BIOS to automatically enable the Num Lock
Function when the system boots up. The options are: On, Off.
Gate A20 Option
When set at Fast, allows a faster access response under Protected mode.
The options are: Fast, Normal.
Typematic Rate Setting
The term typematic means that when a keyboard key is held down, the
character is repeatedly entered until the key is released.
The options are: Disabled, Enabled.
Typematic Rate (Chars/Sec)
This feature is available only if the above item, Typematic Rate Setting, is
set at Enabled. Sets the rate of a character repeat when the key is held
down. The options are: 6, 8, 10, 12, 15, 20, 24, 30.
Typematic Delay (Msec)
This feature is available only if the item, Typematic Rate Setting, is set at
Enabled. Sets the delay time before a character is repeated.
The options are: 250, 500, 750, 1000 millisecond.
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VC31 Mainboard Manual
Security Option
Allows you to set the security level of the system.
The options are: Setup, System.
APIC Mode
Allows you to decide if the system enters the APIC (Advanced Program-
mable Interrupt Controller) mode or not for more IRQs can be released.
The options are: Enabled, Disabled.
MPS Version Control For OS
When two CPUs onboard (not this board) this feature allows you to select
MPS (Multi-Processor Spec.) version control for OS when logo test ex-
ecutes. The options are: 1.1, 1.4.
OS Select For DRAM > 64MB
If your operating system (OS) is OS/2, select the option OS2. Otherwise,
stay with the default setting Non-OS2.
The options are: Non-OS2, OS2.
HDD S.M.A.R.T . Capability
S.M.A.R.T. stands for Self-Monitoring and Analysis Reporting Technol-
ogy which allows your hard disk drive to report any read/write errors and
issues a warning with LDCM installed.
The options are: Disabled, Enabled.
Report No FDD For WIN 95
When the field under the Standard CMOS Setup Menu for Drive A and/or
Drive B is set at None, users must set this field is set at Yes for it to function
properly. Otherwise, set at No, even if field for Drive A and/or Drive B is set
at None, system will still detect and recognize of a floppy drive(s).
The options are: Yes, No.
BIOS Guardian
It allows the system to prevent computer viruses. Users will need to dis-
able it to update BIOS. The options are: Enabled, Disabled.
NOTE: Please disable this BIOS feature about BIOS Guardian
before you start to reflash BIOS.
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BIOS Setup
Advanced Chipset Features
DRAM Timing Selectable
This feature allows user to select the way to set DRAM timing.
The options are: Manual, By SPD.
CAS Latency Time
This feature allows user to select the CAS latency time, when any SDRAM
DIMM installed. The options are: 1.5, 2, 2.5, 3.
Active to Precharge Delay
This feature allows user to set Active to Precharge Delay, if any SDRAM
installed.
The options are: 7, 6, 5.
DRAM RAS# to CAS# Delay
The feature allows user to set the delay time that from the DRAM RAS#
active to CAS#. The options are: 3, 2.
DRAM RAS# Precharge Time
The feature allows user to set the DRAM RAS# Precharge Time.
The options are: 3, 2.
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DRAM Data Integrity Mode
The feature allows you to set the DRAM data integrity mode.
The options are: Non-ECC, ECC.
Memory Frequency For
This feature allows users to set the memory frequency.
The options are: PC100, PC133, Auto.
Dram Read Thermal Mgmt
The feature allows users to set the DRAM Read Thermal Management
register which in the chip of Intel 845 for the trade-off between system
temperature and its performance. The options are: 3, 2.
System BIOS Cacheable
Setting at Enabled will allow the caching of the BIOS ROM F0000H-FFFFFH,
resulting in better system performance. It may cause system error when
some programd try to access the memory area.
The options are: Disabled, Enabled.
Video BIOS Cacheable
Setting at Enabled will allow the caching of the video BIOS ROM at C0000H-
C7FFFH, resulting in better video performance. It may cause system error
when some programd try to access the memory area.
The options are: Disabled, Enabled.
Video RAM Cacheable
Setting at Enabled will allow the caching of the video RAM at A0000H-
BFFFFH, resulting in better video performance. It may cause system error
when some programd try to access the memory area.
The options are: Disabled, Enabled.
Memory Hole At 15M-16M
When set at Enabled, the memory hole at 15MB address will be relocated
to the 15M-16MB address range of the ISA or PCI cycle when the CPU
accesses the 15M-16MB address area. When set at Disabled, the memory
hole at 15MB address will be treated as a DRAM cycle when the CPU
accesses the 15M-16MB address area. The options are: Disabled, Enabled.
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BIOS Setup
Delayed Transaction
Setting at Eanbled will abort the current PCI master cycle and to accept the
new PCI master request, it reaccepts the original PCI master and returns
the PCI data phase to the original PCI master. It will enhance the system
performance. The options are: Disabled, Enabled.
AGP Graphics Aperature Size (MB)
It allows user to select the main memory frame size of AGP use.
The options are: 4, 8, 16, 32, 64, 128, 256.
Delay Prior to Thermal
It allows user to select the Delay Prior to Thermal.
The options are: 4 Min, 8 Min, 16 Min, 32 Min.
Integrated Peripherals
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On-Chip Primary PCI IDE
When enabled, it allows you to use the onboard primary PCI IDE. The
options are: Enabled, Disabled.
IDE Primary Master PIO
Allows an automatic or a manual configuration of the PCI primary IDE
hard drive (master) mode. The options are: Auto, Mode 0, Mode 1, Mode
2, Mode 3, Mode 4.
IDE Primary Slave PIO
Allows an automatic or a manual configuration of the PCI primary IDE
hard drive (slave) mode. The options are: Auto, Mode 0, Mode 1, Mode 2,
Mode 3, Mode 4.
IDE Primary Master UDMA
Allows an automatic configuration of the PCI primary IDE hard drive
(master) mode if Ultra DMA is supported both on the motherboard and
the hard disk. The options are: Auto, Disabled.
IDE Primary Slave UDMA
Allows an automatic configuration of the PCI primary IDE hard drive
(slave) mode if Ultra DMA is supported both on the motherboard and the
hard disk. The options are: Auto, Disabled.
On-Chip Secondary PCI IDE
When enabled, it allows you to use the onboard secondary PCI IDE. The
options are: Enabled, Disabled.
IDE Secondary Master PIO
Allows an automatic or a manual configuration of the PCI secondary IDE
hard drive (master) mode. The options are: Auto, Mode 0, Mode 1, Mode
2, Mode 3, Mode 4.
IDE Secondary Slave PIO
Allows an automatic or a manual configuration of the PCI secondary IDE
hard drive (slave) mode. The options are: Auto, Mode 0, Mode 1, Mode 2,
Mode 3, Mode 4.
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BIOS Setup
IDE Secondary Master UDMA
Allows an automatic configuration of the PCI secondary IDE hard drive
(master) mode if Ultra DMA is supported both on the motherboard and
the hard disk. The options are: Auto, Disabled.
IDE Primary Slave UDMA
Allows you to select the first PCI IDE channel of the first slave hard disk
mode or to detect it by the BIOS if the hard disk supports UDMA (Ultra
DMA, faster than DMA). The options are: Auto, Disabled.
USB Controller
Disable this option if you are not using the onboard USB feature.
The options are: Disabled, Enabled.
USB Keyboard Support
When a USB keyboard is installed, please set at Enabled.
The options are: Enabled, Disabled.
AC97 Audio
This feature allows users to enable or disable the AC97 audio function.
The options are: Auto, Disabled.
AC97 Modem
This feature allows users to enable or disable the AC97 modem function.
The options are: Auto, Disabled.
Init Display First
When you install an AGP VGA card and a PCI VGA card on the board, this
feature allows you to select the first initiation of the monitor display from
which card. The options are: PCI Slot, Onboard.
IDE HDD Block Mode
When enabled, the system executes read/write requests to hard disk in
block mode. The options are: Enabled, Disabled.
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POWER ON Function
Allows you to set the method for powering-on the system. The default
option of BUTTON-ONLY allows system power-on using the standard
system case mounted ON/OFF switch. The option Password allows you
to set up to 5 alphanumeric characters to power-on the system. The option
Any Key allows you to touch the keyboard to power on the system. The
option Keyboard 98 allows you to use the standard keyboard 98 to power
on the system.
The options are: BUTTON ONLY, Any Key, Keyboard 98.
Onboard FDC Controller
When enabled, the floppy diskette drive (FDD) controller is activated.
The options are: Enabled, Disabled.
Onboard Serial Port 1
If the serial port 1 uses the onboard I/O controller, you can modify your
serial port parameters. If an I/O card needs to be installed, COM3 and
COM4 may be needed. The options are: 3F8/IRQ4, 3E8/IRQ4, 2F8/IRQ3,
2E8/IRQ3, Disabled.
Onboard Serial Port 2
If the serial port 2 uses the onboard I/O controller, you can modify your
serial port parameters. If an I/O card needs to be installed, COM3 and
COM4 may be needed. The options are: 2F8/IRQ3, 3E8/IRQ4, 2E8/IRQ3,
3F8/IRQ4, Disabled.
UART Mode Select
Allows you to select the IR modes if the serial port 2 is used as an IR port.
Set at Standard, if you use COM2 as the serial port as the serial port,
instead as an IR port. The options are: HPSIR, ASKIR, Normal.
UR2 Duplex Mode
Allows you to select the IR modes.
The options are: Half, Full.
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BIOS Setup
RxD , TxD Polarity Active
This feature is available only if the item, UART 2 Mode, is set at ASKIR or
HPSIR. The feature allows you to select the active signals of the reception
end and the transmission end. This is for technician use only.
The options are: Hi, Lo; Hi, Hi; Lo, Hi; Lo, Lo.
Use IR Pins
Allows you to select IR pin mode.
The options are: IR-Rx2Tx2, RxD2, TxD2.
Onboard Parallel Port
Allows you to select from a given set of parameters if the parallel port uses
the onboard I/O controller.
The options are: 378/IRQ7, 278/IRQ5, 3BC/IRQ7, Disabled.
Parallel Port Mode
Allows you to connect with an advanced printer via the port mode it
supports.
The options are: SPP, EPP, ECP, ECP+EPP.
EPP Mode Select
This feature allows you to select the EPP type version.
The options are: EPP1.7, EPP1.9.
ECP Mode Use DMA
This feature allows you to select Direct Memory Access (DMA) channel if
the ECP mode selected. The options are: 3, 1.
Game Port Address
This feature allows you to select the game port address or disable it.
The options are: 201, 209, Disabled.
Midi Port Address
This feature allows you to select the Midi port address or disable it.
The options are: 330, 300, 290, Disabled.
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Midi Port IRQ
It allows you to select Midi IRQ if Midi is enabled.
The options are: 10, 5.
Power Management Setup
ACPI function
This item allows you to disable the ACPI function.
The options are: Enabled, Disabled.
ACPI Suspend Type
This item allows you to select suspend mode when the system in ACPI
mode. The options are: S1 (POS), S3 (PTR).
USB KB Wake-Up From S3
When set at Enabled, it allows USB keyboard to activate the system from
ACPI S3 power saving mode. The options are Disabled, Enabled.
Power Management
This item allows you to adjust the power management features.
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BIOS Setup
Select User Define for configuring your own power management features.
Min Saving initiates all predefined timers in their minimum values. Max
Saving, on the other hand, initiates maximum values. The options are: User
Define, Min Saving, Max Saving.
Video Off Method
The option V/H SYNC+Blank allows the BIOS to blank off screen display
by turning off the V-Sync and H-Sync signals sent from add-on VGA card.
DPMS allows the BIOS to blank off screen display by your add-on VGA
card which supports DPMS (Display Power Management Signaling func-
tion). Blank Screen allows the BIOS to blank off screen display by turning
off the red-green-blue signals.
The options are: V/H SYNC+Blank, DPMS, Blank Screen.
Video Off In Suspend
The option allows you to select VGA status when the system goes to
suspend mode. The options are: Yes, No.
Suspend Type
The option allows you to select VGA status when the system goes to
suspend mode. The options are: Stop Grant, PwrOn Suspend.
MODEM Use IRQ
This feature allows you to select the IRQ# to meet your modems IRQ#.
The options are: 3, 4, 5, 7, 9, 10, 11.
Suspend Mode
When disabled, the system will not enter Suspend mode. The specified
time option defines the idle time the system takes before it enters Suspend
mode. The options are: Disable, 1, 2, 4, 8, 10, 20, 30, 40 Min, 1 Hour.
HDD Power Down
The option lets the BIOS turn the HDD motor off when system is in Sus-
pend mode. Selecting 1 Min..15 Min allows you define the HDD idle time
before the HDD enters the Power Saving Mode.
The options 1 Min..15 Min will not work concurrently. When HDD is in the
Power Saving Mode, any access to the HDD will wake the HDD up.
The options are: Disable, 1 Min..15 Min.
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Soft-Off by PWR-BTTN
The selection Delay 4 Sec. will allow the system shut down after 4 seconds
after the power button is pressed. The selection Instant-Off will allow the
system shut down immediately once the power button is pressed.
The settings are: Delay 4 Sec, Instant-Off.
PWRON After PWR-Fail
When the system is shut down owing to the power failure, the system will
not be back to power on by itself. This feature allows you to set the
system back to which power status of the system when the system power
is resumed. The options are Off, On, Former-Sts.
CPU Thermal-Throttling
When thermal override condition occur, this item allows users to deter-
mine the duty cycle of the throttling.
The options are: 12.5%, 25.0%, 37.5%, 50.0%, 62.5, 75.0%, 87.5%.
Wake-Up by PCI card
When set at Enabled, any PCI-PM event awakes the system from a PCI-
PM controlled state. The options are Disabled, Enabled.
Power On by Ring
An incoming call via modem awakes the system from its soft-off mode.
The options are Disabled, Enabled.
Wake Up On LAN
When set at Enabled, an input signal comes from the other client/server on
the LAN awakes the system from a soft off state if connected over LAN.
The options are Disabled, Enabled.
Resume by Alarm
This feature allows you to set the when the system being turned on from
the system power-off status.
The options are: Enabled (Default), Disabled.
Date (of Month)
This feature allows you to set the day of the alarm starts when the RTC
Alarm Resume From Soft Off is set to be Enabled. The options are: 0, 1..31.
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BIOS Setup
Timer (hh:mm:ss)
If an ATX power supply is installed and when RTC Alarm Resume is En-
abled, this feature allows you to set the time of the alarm starts when the
RTC Alarm Resume From Soft Off is set to be Enabled.
The options are: 7: 0: 0 (Default). hh (hour) - 0, 1, 2,.., 23; mm (minute) - 0,
1, 2,..,59; ss (second) - 0, 1, 2,..,59.
Primary IDE 0
When the primary master HDD is working, the system timer will be re-
loaded and the system will not be into the suspend mode.
The options are: Disabled (Default), Enabled.
Primary IDE 1
When the primary slave HDD is working, the system timer will be reloaded
and the system will not be into the suspend mode.
The options are: Disabled (Default), Enabled.
Secondary IDE 0
When the secondary master HDD is working, the system timer will be
reloaded and the system will not be into the suspend mode.
The options are: Disabled (Default), Enabled.
Secondary IDE 1
When the secondar slave HDD is working, the system timer will be re-
loaded and the system will not be into the suspend mode.
The options are: Disabled (Default), Enabled.
FDD, COM, LPT Port
When FDD, COM, or LPT is working, the system timer will be reloaded and
the system will not be into the suspend mode.
The options are: Disabled, Enabled.
PCI PIRQ[A-D]#
When the PCI PIRQ[A-D]# has been alerted, the system timer will be re-
loaded and the system will not be into the suspend mode.
The options are: Disabled, Enabled.
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VC31 Mainboard Manual
PnP/PCI Configurations
Reset Configuration Data
Enabling it to reset the system Extended System Configuration Data (ESCD)
when you exit Setup if you have installed a new add-on card and the
system reconfiguration has caused such a serious conflict that the operat-
ing system can not boot. The options are: Disabled, Enabled.
Resources Controlled By
If set at Auto, the BIOS arranges all system resources. If there exists con-
flict, select Manual. The options are: Auto (ESCD), Manual.
If the manual options, after the featrue IRQ Resources being pressed, of
IRQ- Assigned To are: PCI Device, Reserved. When resources were con-
trolled manually, assign each system interrupt a type, depending on each
device type to use the interrupt.
PCI/VGA Palette Snoop
Set this feature to be enabled if any ISA adapter card installed in the
system requires the VGA palette snoop function.
The options are: Disabled, Enabled.
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BIOS Setup
INT Pin 1/2/3/4/5/6/7/8 Assignment
This feature allows you to assign the PCI IRQ numbers for PCI slots.
Selecting the default, Auto, allows the PCI controller to automatically allo-
cate the IRQ numbers. The options are: Auto, 3, 4, 5, 7, 9, 10, 11, 12, 14, 15.
PC Health Status
Shutdown T emperature
This feature helps to shutdown the system when the system temperature
is as high as the selected temperature to prevent from the overheat prob-
lem. The option list presents all the temperatures that supported by the
board and Disabled.
CPU Temperature / System Temperature / Vcore (Fom VID) / Vccp /
+3.3V / +5V / +12V / HVcc / +1.5V / +1.8V / Current CPU FAN Speed
/ Current System FAN Speed
These items allow end users and technicians to monitor data provided by
the BIOS on this mainboard. It is not user-configurable.
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Frequency/Voltage Control
CPU Clock Ratio
This feature allows you to select the frequency mulitplier for CPU host
clock. The option list offers the ratios from X 3 to X 8.
Auto Detect PCI Clk
When enabled, BIOS will detect the PCI slot and DIMM slot. If no any
device in, BIOS will auto disable its clock.
The options are: Enabled, Disabled.
Spread Spectrum Modulated
This feature is used to set the spread Spectrum to be center spread type or
down spread type. The options are: Disabled, Enabled.
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BIOS Setup
Load Fail-Safe Defaults
This submenu is selected to diagnose the problem after the computer boots, if
the computer will not boot. These settings do not give optimal performance.
Load Optimized Defaults
This submenu is selected for default settings which provide the best system
performance.
Supervisor/User Password
To enable the Supervisor/User passwords, select the item from the Standard
CMOS Setup. You will be prompted to create your own password. Type your
password up to eight characters and press Enter. You will be asked to confirm
the password. Type the password again and press Enter. To disable password,
press Enter twice when you are prompted to enter a password. A message
appears, confirming the password is disabled.
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VC31 Mainboard Manual
Under the BIOS Feature Setup, if Setup is selected under the Security Option
field and the Supervisor/User Password is enabled, you will be prompted
password every time you try to enter the CMOS Setup Utility. If System is
selected and the Supervisor/User Password is enabled, you will be requested
to enter the Password every time when you reboot the system or enter the
CMOS Setup utility.
Save and Exit Setup
After you have made changes under Setup, press Esc to return to the main
menu. Move cursor to Save and Exit Setup or press F10 and then press Y to
change the CMOS Setup. If you did not change anything, press Esc again or
move cursor to Exit Without Saving and press Y to retain the Setup settings.
The following message will appear at the center of the screen to allow you to
save data to CMOS and exit the setup utility: SAVE to CMOS and EXIT (Y/N)?
Exit without Saving
If you select this feature, the following message will appear at the center of the
screen to allow you to exit the setup utility without saving CMOS modifica-
tions: Quit Without Saving (Y/N)?
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Quick Reference
The mainboard has several user-adjustable jumpers and/or switches on the board that
allow you to configure your system to suit your requirements. This quick reference
contains information on the various hardware settings on your mainboard.
To set up your computer, you must complete the following steps:
Quick Reference
■ Step 1 - Set system jumpers/switches
■ Step 2 - Install system memory modules
■ Step 3 - Install the Central Processing Unit (CPU)
■ Step 4 - Install expansion cards
■ Step 5 - Connect ribbon cables, cabinet wires, and power supply
■ Step 6 - Set up BIOS software
■ Step 7 - Set up supporting software tools
WARNING: Excessive torque may damage the mainboard. When
using an electric screwdriver on the mainboard, make sure that
the torque is set to the allowable range of 5.0 ~ 8.0kg/cm.
Mainboard components contain very delicate Integrated Circuit
(IC) chips. To prevent static electricity from harming any of the
mainboard’s sensitive components, you should follow the
following precautions whenever working on the computer:
1. Unplug the computer when working on the inside.
2. Hold components by the edges and try not to touch the IC
||||chips, leads, or circuitry.
3. Wear an anti-static wrist strap which fits around the wrist.
4. Place components on a grounded anti-static pad or on the bag
that came with the component whenever the components are
separated from the system.
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Quick Reference
Mainboard Layout
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Quick Reference
1). Clear CMOS, Clear Password,
FSB Speed Select
2). Front Panel Block Cable Connection
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VC31 Mainboard Manual
3). CPU Fan Installation
This connector is linked to the CPU fan. When the system is in some power saving
mode, the CPU fan will turn off; when it reverts back to full on mode, the fan will turn
back on.
damage to both the CPU and the mainboard.
Damage may occur to the mainboard and/or the CPU fan if these pins are
used incorrectly. These are not jumpers, do not place jumper caps over these
pins.
Without sufficient air circulation, the CPU may overheat resulting in
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