Docslide.us manual de-la-placa-pc-400

Mainboard User’s Manual
This publication, photographs, illustrations and software are under
the protection of international copyright laws and all rights
reserved. It does not allow any reproduction of this manual,
content and any materials contained herein without the written
consent of the authentic manufacturer.
The information in this manual is subject to change without notice.
The manufacturer does neither represent nor warrant the contents
hereof; and specifically disclaims any implied warranties of
merchantability or fitness for any particular purpose. Furthermore,
the manufacturer reserves the right to revise and change this
publication from time to time, without the obligation of notifying
any person of such revision or changes.
Trademarks
IBM, VGA, and PS/2 are registered trademarks of International
Business Machines.
Intel, Pentium, Pentium-II, Pentium-III, Pentium-IV, MMX,
Celeron and Tualatin are registered trademarks of Intel
Corporation.
Microsoft, MS-DOS and Windows 95/98/NT/2000 are registered
trademarks of Microsoft Corporation.
PC-cillin is a trademark of Trend Micro Inc.
AMI is a trademark of American Megatrends Inc.
MediaRing Talk is a registered trademark of MediaRing Inc.
3Deep is a registered trademark of E-Color Inc.
It has been acknowledged that all mentioned brands or product
names are trademarks or registered trademarks of their respective
holders.
Copyright © 2001
All Rights Reserved
M925 Series, V1.1A
VT8751/November 2001

II
Notice:
Owing to Microsoft’s certifying schedule is various to every
supplier, we might have some drivers not certified yet by
Microsoft. Therefore, it might happen under Windows XP that a
dialogue box (shown as below) pop out warning you this software
has not passed Windows Logo testing to verify its compatibility
with Windows XP. Please rest assured that our RD department has
already tested and verified these drivers. Just click the “Continue
Anyway” button and go ahead the installation.

III
Table of Contents
Chapter 1: Introduction ...................................................................1
Key Features............................................................................2
Package Contents.....................................................................5
Static Electricity Precautions...................................................6
Pre-Installation Inspection.......................................................6
Chapter 2: Mainboard Installation...................................................7
Mainboard Components ..........................................................8
I/O Ports ..................................................................................9
Installing the Processor..........................................................10
Installing Memory Modules ..................................................11
Jumper Settings .....................................................................13
The Panel Connectors............................................................15
Other Devices Installation.....................................................17
Expansion Slots Installation ..................................................18
Connecting Optional Devices ...............................................19
Chapter 3: BIOS Setup Utility.......................................................23
Introduction ...........................................................................23
Running the Setup Utility...........…………………………...24
Standard CMOS Setup Page..................................................25
Advanced Setup Page............................................................26
Power Management Setup Page ............................................29
PCI/Plug and Play Setup Page...............................................31
Load Optimal Settings...........................................................32
Load Best Performance Settings ...........................................32
Features Setup Page...............................................................33
CPU PnP Setup Page.............................................................35
Hardware Monitor Page ........................................................36
Change Password...................................................................37
Exit ........................................................................................37
Chapter 4: Software & Applications .............................................39
Introduction ...........................................................................39
Installing Support Software...................................................39
Auto-installing under Windows 98........................................41

1: Introduction
1
Chapter 1
Introduction
This mainboard has a Socket 478 for the Intel Pentium 4 type of
processors supporting front side bus (FSB) speeds up to 400 MHz.
This mainboard has the VIA VT8751(P4M266) Northbridge and
VT8233 Southbridge chipsets that support AC 97 audio codec,
and provide Ultra DMA 33/66/100 function. This mainboard has
two 32-bit PCI slots, one 4xAGP slot, one CNR (Communications
and Networking Riser) slot, and an onboard 10BaseT/100BaseTX
Network interface (optional). In addition, this mainboard has a full
set of I/O ports including two PS/2 ports for mouse and keyboard,
one serial port, one VGA port, one parallel port, one MIDI/game
port and six USB ports (two backpanel ports, onboard USB
headers providing four extra ports). By means of the Extended
USB Module connected to the mainboard, you can make four extra
USB ports.
This mainboard is a Micro ATX size mainboard and has power
connectors for an ATX power supply.

2
Key Features
This mainboard has these key features:
Socket 478 Processor
The PGA Socket 478
Accommodates Intel Pentium 4 CPUs
Supports a front-side bus (FSB) of 400 MHz
Chipset
There are VT8751 Northbridge and VT8233 Southbridge in this
chipset in accordance with an innovative and scalable architecture
with proven reliability and performance. A few of the chipset’s
advanced features are:
An advanced V-Link memory controller architecture that
provides the bandwidth up to 266 MB/s and performance
necessary for even the most demanding Internet and 3D
graphics
Support for an 4xAGP interface providing vivid 3D
graphics and video performance
An ATA 100 interface on the chipset, which helps boost
system performance by providing a high-speed connection
to ATA 100 Hard Disk Drives, delivering maximum
sustained data transfer rates of 100 MB/sec
Additional key features include support for six USB ports, an AC
97 link for audio and modem, hardware monitoring, and
ACPI/OnNow power management.
Memory Support
The mainboard accommodates 2 DDR + 2 SDR 168 pin,
3.3V DIMM sockets with a total capacity of 2 GB system
memory.

1: Introduction
3
Built-in Graphics System
P4M266 integrates S3 ’s Savag4 graphics accelerator
into a single chip. P4M266 brings mainstream graphics
performance to the Value PC with leading-edge 2D, 3D
and DVD video acceleration into a cost effective package.
Based on its capabilities, P4M266 is an ideal solution for
the consumer, corporate mobile users and entry level
professionals.
Maximum shared memory size is 32 MB.
VGA
This mainboard includes a 4xAGP slot that provides eight
times the bandwidth of the original AGP specification.
AGP technology provides a direct connection between the
graphics sub-system and memory so that the graphics do
not have to compete for processor time with other devices
on the PCI bus.
AC 97 Audio Codec
The AC 97 Audio codec is compliant with the AC 97 2.2
specification, and supports 18-bit ADC (Analog Digital
Converter) and DAC (Digital Analog Converter) resolution
as well as 18-bit stereo full-duplex codec with independent
and variable sampling rates. Further features include
support for four analog line-level stereo inputs.
Expansion Options
The mainboard comes with the following expansion options:
Two 32-bit PCI slots capable of Ultra DMA bus mastering
with transfer rates of 33/66/100 MB/sec
An 4xAGP slot
A CNR (Communications and Networking Riser) slot
Onboard I/O Ports
The mainboard has a full set of I/O ports and connectors:
Two PS/2 ports for mouse and keyboard
One serial port

4
One VGA port
One parallel port
One MIDI/game port
Six USB ports (two backpanel ports, onboard USB headers
providing four extra ports)
Audio jacks for microphone, line-in and line-out
BIOS Firmware
This mainboard uses AMI BIOS that enables users to configure
many system features including the following:
Power management
Wake-up alarms
CPU parameters and memory timing
CPU and memory timing
The firmware can also be used to set parameters for different
processor clock speeds.
Built-in Ethernet LAN
Built-in 10BaseT/100BaseTX Ethernet LAN
VT8233 integrates Fast Ethernet MAC and VT6103 LAN
PHY in compliance with IEEE802.3u 100BASE-TX,
10BASE-T and ANSI X3.263 TP-PMD standards
In compliance with ACPI 1.0 and the Network Device
Class Power Management 1.0
High Performance achieved by 100Mbps clock generator
and data recovery circuit for 100Mbps receiver
Bundled Software
PC-Cillin 2000 provides automatic virus protection under
Windows 95/98/NT/2000
MediaRing Talk provides PC to PC or PC to Phone
internet phone communication
3Deep delivers the precise imagery and displays accurate
color in your monitor
WinDVD2000 is a DVD playback application (optional)
Recovery Genius 21
st
V5.0 provides the function to
recover, reserve and transfer hard disk data.

1: Introduction
5
CD Ghost is the software stimulating a real CD-ROM to
perform equivalent function.
Language Genius 21
st
is the software to provides learning
tools of language and singing.
Dimensions
Micro ATX form factor of 244 x 244 mm
Package Contents
Attention: This mainboard serial has two models, M925LR(LAN
Ready) and M925(without LAN). Please contact your local
supplier for more information about your purchased model. Each
model will support different specification listed as below:
Model Specification
M925LR Onboard LAN PHY chip (U15),
USB + RJ-45 LAN connector
M925 USB connector only
Your mainboard package contains the following items:
 The mainboard
 The User’s Manual
 One diskette drive ribbon cable
 One IDE drive ribbon cable
 Software support CD
 Module Retention damp
Optional Accessories
You can purchase the following optional accessories for this
mainboard.
 Extended USB module
 CNR v.90 56K Fax/Modem card

6
Static Electricity Precautions
Static electricity could damage components on this mainboard.
Take the following precautions while unpacking this mainboard
and installing it in a system.
1. Don’t take this mainboard and components out of their original
static-proof package until you are ready to install them.
2. While installing, please wear a grounded wrist strap if possible.
If you don’t have a wrist strap, discharge static electricity by
touching the bare metal of the system chassis.
3. Carefully hold this mainboard by its edges. Do not touch those
components unless it is absolutely necessary. Put this
mainboard on the top of static-protection package with
component side facing up while installing.
Pre-Installation Inspection
1. Inspect this mainboard whether there are any damages to
components and connectors on the board.
2. If you suspect this mainboard has been damaged, do not
connect power to the system. Contact your mainboard vendor
about those damages.

2: Mainboard Installation
7
Chapter 2
Mainboard Installation
To install this mainboard in a system, please follow these
instructions in this chapter:
 Identify the mainboard components
 Install a CPU
 Install one or more system memory modules
 Make sure all jumpers and switches are set correctly
 Install this mainboard in a system chassis (case)
 Connect any extension brackets or cables to connecting
headers on the mainboard
 Install other devices and make the appropriate connections to
the mainboard connecting headers.
Note:
1. Before installing this mainboard, make sure jumper JBAT1 is
under Normal setting. See this chapter for information about
locating JBAT1 and the setting options.
2. Never connect power to the system during installation;
otherwise, it may damage the mainboard.

8
Mainboard Components
Identify major components on the mainboard via this diagram
underneath.
Note: Those jumpers of mainboard not appearing in this
illustration are for testing only.

9
I/O Ports
The illustration below shows a side view of the built-in I/O ports
on the mainboard.
PS/2
mouse
PS/2
keyboard
USB
ports
Parallel port (LPT1)
Serial port
COM 1
VGA
Line-in
Game port
Microphone
Line-out
LAN
port
1. Use the upper PS/2 port to connect a PS/2 pointing
device.
2. Use the lower PS/2 port to connect a PS/2
keyboard.
3. Use the USB ports to connect USB devices.
4. Use LPT1 to connect printers or other parallel
communications devices.
5. Use the COM1 port to connect serial devices such
as mice or fax/modems; the VGA port to connect
graphic display devices.
6. Use the game port to connect a joystick or a MIDI
device.
7. Use the three audio ports to connect audio devices.
The left side jack is for a stereo line-out signal. The
middle jack is for a stereo line-in signal. The right
side jack is for a microphone.
8. Use this port to connect to the network.

10
Installing the Processor
This mainboard has a Socket 478 processor socket. When choosing
a processor, consider the performance requirements of the system.
Performance is based on the processor design, the clock speed and
system bus frequency of the processor, and the quantity of internal
cache memory and external cache memory.
CPU Installation Procedure
Follow these instructions to install the CPU:
1. Unhook the CPU socket’s locking lever by pulling
it away from socket and raising it to the upright
position.
2. Match the pin 1 corner of CPU socket to the one of
processor, and insert the processor into the socket.
Do not use force.
3. Push the locking lever down and hook it under the
latch on the edge of socket.
4. Apply thermal grease to the top of the CPU.
5. Lower the CPU fan/heatsink unit onto the CPU and
CPU socket, and then use the retention module
clamps to snap the fan/heatsink into place.
6. Plug the CPU fan power cable into the CPU
cooling fan power supply (CPU_FAN) on the
mainboard.

11
Installing Memory Modules
This mainboard accommodates 168-pin 3.3V/184-pin 2.5V
unbuffered SDRAM memory modules. The memory chips must be
standard or registered SDRAM (Synchronous Dynamic Random
Access Memory).
The CPU supports 100MHz system bus. The SDRAM DIMMs
and DDRs can synchronously work with 100 MHz or operates over
a 266 MHz system bus.
You must install at least one memory module in order to work out
this mainboard, either SDRAM or DDR SDRAM, but you can’t
use them simultaneously.
DDR SDRAM provides 800 MBps or 1 GBps data transfer
depending on whether the bus is 100 MHz or 266 MHz. It doubles
the rate to 1.0 GBps and 2.1 GBps by transferring data on both the
rising and falling edges of the clock. DDR SDRAM uses additional
power and ground lines and requires 184-pin 2.5V unbuffered
DIMM module rather than the 168-pin 3.3V unbuffered DIMMs
used by SDRAM.
DIMM DDR

12
Installation Procedure
The mainboard accommodates two memory modules. You must
install at least one module in any of the three slots. Each module
can be installed with up to 2GB system memory.
Refer to the following to install the memory modules.
1. Push the latches on each side of the DIMM slot
down.
2. Align the memory module with the slot. The
DIMM slots are keyed with notches and the
DIMMs are keyed with cutouts so that they can
only be installed correctly.
3. Check that the cutouts on the DIMM module edge
connector match the notches in the DIMM slot.
4. Install the DIMM module into the slot and press it
firmly down until it seats correctly. The slot latches
are levered upwards and latch on to the edges of the
DIMM.
5. Install any remaining DIMM modules.

13
JP2
Jumper Settings
JBAT1: Clear CMOS Jumper
This jumper is to clear the contents of CMOS memory. You may
need to clear the CMOS memory if the settings in the Setup Utility
are incorrect that prevents your mainboard from operating. To clear
the CMOS memory, disconnect all the power cables from the
mainboard and then move the jumper cap into the CLEAR setting
for a few seconds.
Function Jumper Setting
Normal Short Pins 1-2
Clear CMOS Short Pins 2-3
JP1A1, JP1B1: CPU Clock
This jumper enables to select CPU frequency.
CPU Clock JP1A1 JP1B1
100M Short Pins 1-2 Short Pins 2-3
133M Short Pins 2-3 Short Pins 1-2
JP4
1
JP1
JBAT1
1
1
JP16
1
JP1A1
JP1B1
1
1
1
PANEL2
1
PANEL1

14
JP1: DRAM Voltage (VCC)
This jumper enables to select voltage of DRAM.
2.5V (DDR) Open Pins 1-2
3V (SDR) Short Pins 1-2
J2A/B/C/D, J3A/B/C/D: DDR/SDR DRAM Type Selector
This jumper enables to select the type of DDR or SDR
DRAM.
DDR1,DDR2 Short all J2A/B/C/D and J3A/B/C/D pins
DIMM1, DIMM2 Open all J2A/B/C/D and J3A/B/C/D pins
JP2: Keyboard Power On
This jumper enables any keyboard activity to power up a
system previously in a standby or sleep state.
5V Short Pins 1-2
5VSB Short Pins 2-3
J13: Flash ROM Voltage (VCC)
This jumper enables to select voltage of flash ROM.
5V Short Pins 1-2
3V Short Pins 2-3
JP4: Flash ROM Size
This jumper enables to select size of flash ROM.
2M Short Pins 1-2
4M Short Pins 2-3

15
The Panel Connector
PANEL1
If there are a headphone jack or/and a microphone jack on the front
panel, connect the cables to the PANEL1 on the mainboard.
Device Pins
MIC In
(Pins 1, 2)
2 1
Line Out(R)
(Pins 5, 6)
10 9
Line Out(L)
(Pin 9,10)Line Out (L) 9, 10
Line Out (R) 5, 6
MIC In 1, 2
PANEL2
This panel connector provides a set of switch and LED connectors
found on ATX case. Refer to the table below for information.
Device Pins
HDD LED
(Pins 1, 3)
2 1
Reset Switch
(Pins 5, 7)
Power Switch
(Pins 6, 8)
SPD-LED
(Pins 2, 4)
Empty
(Pin 10)
10 9
N/C
(Pin 9)
Empty 10
N/C 9
Power
ON/OFF
6, 8
Reset Switch 5, 7
SPD-LED
Indicator
+2, 4
HDD LED +1, -3
++

16
J16: LAN LED Indicator
This connector is attached to LAN device that needs a LED
indicator.
Device Pins
Link LED 1, +2
ACT LED +3, 4
Note: The plus sign (+) indicates a pin which must be
connected to a positive voltage.
1
4
LINK
LED
ACT
LED
+
+

17
Other Devices Installation
Floppy Diskette Drive Installation
The mainboard has a floppy diskette drive (FDD) interface and
ships with a diskette drive ribbon cable that supports one or two
floppy diskette drives. You can install a 5.25-inch drive and a 3.5-
inch drive with various capacities. The floppy diskette drive cable
has one type of connector for a 5.25-inch drive and another type of
connector for a 3.5-inch drive.
IDE Devices
Your mainboard has a primary and secondary IDE channel
interface (IDE1 and IDE2). An IDE ribbon cable supporting two
IDE devices is bundled with the mainboard.
If you want to install more than two IDE devices, get a second IDE
cable and you can add two more devices to the secondary IDE
channel.
IDE devices have jumpers or switches to set the IDE device as
MASTER or SLAVE. When installing two IDE devices on one
cable, ensure that one device is set to MASTER and the other one
to SLAVE.
This mainboard supports Ultra DMA 66/100. UDMA is a
technology to accelerate devices’ performance in the IDE channel.
To maximize performance, install IDE devices that support UDMA
and use 80-pin IDE cables supporting UDMA 66/100.

18
Expansion Slots Installation
This mainboard has two 32-bit PCI (Peripheral Components
Interconnect) expansion slots, one 4xAGP slot, and one CNR slot.
PCI Slots
PCI slots are used to install expansion cards that have the
32-bit PCI interface.
4 x AGP Slot
The 4xAGP slot is used to install a graphics adapter that supports
the 4xAGP specification and has a 4xAGP edge connector.
CNR Slot
The Communications Networking Riser (CNR) slot can be used to
insert a CNR card.
1. Remove a blanking plate from the system case
corresponding to the slot you are going to use.
2. Install the edge connector of the expansion card
into the expansion slot. Ensure that the edge
connector is correctly seated in the slot.
3. Secure the metal bracket of the card to the system
case with a screw.
CNR1 Slot
PCI Slot
AGP Slot

19
USB2
USB11
1
1
Connecting Optional Devices
Refer to the following for information on connecting the
mainboard’s optional devices:
J12
1
SPK1
CD2
CD1
1
WOM1
WOL1
SIR1

20
J12: Sleep Switch
This header is connected to the sleep button for suspending the
computer’s activity if pushing the button. Or, the computer is
automatically suspended after passing a period of time.
SPK1: Speaker Connector
Connect the cable from the PC speaker to the SPK1 header on the
mainboard.
USB1/USB2: Front panel USB headers
The mainboard has USB ports installed on the rear edge I/O port
array. Some computer cases have a special module that mounts
USB ports at the front of the case. If you have this kind of case, use
auxiliary USB connectors USB1 and USB2 to connect the front-
mounted ports to the mainboard.
WOL1/WOM1: Wake On LAN/Wake On Modem
If you have installed a LAN card, use the cable provided with the
card to plug into the mainboard WOL1 connector. This enables the
Wake On LAN (WOL1) feature. When your system is in a power-
saving mode, any LAN signal automatically resumes the system.
You must enable this item using the Power Management page of
the Setup Utility.
If you have installed a modem, use the cable provided with the
modem to plug into the mainboard WOM1 connector. This enables
the Wake On Modem (WOM1) feature. When your system is in a
power-saving mode, any modem signal automatically resumes the
system. You must enable this item using the Power Management
page of the Setup Utility. See Chapter 3 for more information.
CD1/2:CD-ROM/DVD Audio Input Connector
If you have installed a CD-ROM drive or DVD-ROM drive, you
can connect the drive audio cable to the onboard sound system.
On the mainboard, locate the two 4-pin connectors CD1 and CD2.
There are two kinds of connector because different brands of CD-
ROM drive have different kinds of audio cable connectors.
Connect the cable to the appropriate connector.

21
SIR1: Serial infrared port
The mainboard supports a Serial Infrared (SIR1) data port. Infrared
ports allow the wireless exchange of information between your
computer and similarly equipped devices such as printers, laptops,
Personal Digital Assistants (PDAs), and other computers.

3: BIOS Setup Utility
23
Chapter 3
BIOS Setup Utility
Introduction
The BIOS Setup Utility records settings and information of your
computer, such as date and time, the type of hardware installed,
and various configuration settings. Your computer applies those
information to initialize all the components when booting up and
basic functions of coordination between system components.
If the Setup Utility configuration is incorrect, it may cause the
system to malfunction. It can even stop your computer booting
properly. If it happens, you can use the clear CMOS jumper to
clear the CMOS memory which has stored the configuration
information; or you can hold down the Page Up key while
rebooting your computer. Holding down the Page Up key also
clears the setup information.
You can run the setup utility and manually change the
configuration. You might need to do this to configure some
hardware installed in or connected to the mainboard, such as the
CPU, system memory, disk drives, etc.

24
Running the Setup Utility
Every time you start your computer, a message appears on the
screen before the operating system loading that prompts you to
“Hit <DEL>if you want to run SETUP”. Whenever you see this
message, press the Delete key, and the Main menu page of the
Setup Utility appears on your monitor.
AMIBIOS SIMPLE SETUP UTILITY – VERSION 1.21.06
(C) 2000 American Megatrends, Inc. All Rights Reserved
Standard CMOS Setup
Advanced Setup
Power Management Setup
PCI / Plug and Play Setup
Load Optimal Settings
Load Best Performance Settings
Features Setup
CPU PnP Setup
Hardware Monitor
Change Password
Exit
Esc : Quit : Select Item (Shift)F2 : Change Color F5 : Old Values
F6 : Optimal values F7 : Best performance values F10 : Save&Exit
Standards COMOS setup for changing time, date, hard disk type, etc.
You can use cursor arrow keys to highlight anyone of options on
the main menu page. Press Enter to select the highlighted option.
Press the Escape key to leave the setup utility. Hold down the
Shift key and press F2 to cycle through the Setup Utility’s optional
color schemes.
Some options on the main menu page lead to tables of items with
installed values that you can use cursor arrow keys to highlight one
item, and press PgUp and PgDn keys to cycle through alternative
values of that item. The other options on the main menu page lead
to dialog boxes that require your answer Yes or No by hitting the Y
or N keys.
If you have already changed the setup utility, press F10 to save
those changes and exit the utility. Press F5 to reset the changes to
the original values. Press F6 to install the setup utility with a set of
default values. Press F7 to install the setup utility with a set of
high-performance values.

25
Standard CMOS Setup Page
This page helps you set up basic information such as the date and
time, the IDE devices, and the diskette drives.
AMIBIOS SETUP – STANDARD CMOS SETUP
Date (mm/dd/yy) : Mon Nov 12, 2001
Time (hh/mm/ss) : 11:14:00
LBA Blk PIO 32Bit
Type Size Cyln Head WPcom Sec Mode Mode Mode Mode
Pri Master : Auto On
Pri Slave : Auto On
Sec Master : Auto On
Sec Slave : Auto On
Floppy Drive A : 1.44 MB 31/2
Floppy Drive B : Not Installed
Month : Jan – Dec ESC : Exit
Day : 01 – 31 : Select Item
Year : 1901 – 2099 PU/PD/+/- : Modify
(Shift)F2 : Color
F3 : Detect All HDD
Date & Time Use these items to set up system date and
time
IDE Pri Master
Pri Slave
Sec Master
Sec Slave
Use these items to configure devices
connected to the Primary and Secondary IDE
channels. To configure an IDE hard disk
drive, choose Auto. If the Auto setting fails to
find a hard disk drive, set it to User, and then
fill in the hard disk characteristics (Size,
Cyls, etc.) manually. If you have a CD-ROM
drive, select the setting CDROM. If you have
an ATAPI device with removable media (e.g.
a ZIP drive or an LS-120), select Floptical.
Floppy Drive A
Floppy Drive B
Use these items to set up size and capacity of
the floppy diskette drive(s) installed in the
system.

26
Advanced Setup Page
This page sets up more advanced information about your system.
Be more careful to this page. Any changes can affect the operation
of your computer.
AMIBIOS SETUP – ADVANCED SETUP
Quick Boot Enabled
1st Boot Device IDE-0
2nd Boot Device Floppy
3rd Boot Device CDROM
Try Other Boot Devices Yes
S.M.A.R.T. for Hard Disks Disabled
BootUp Num-Lock On
Floppy Drive Swap Disabled
Floppy Drive Seek Disabled
PS/2 Mouse Support Disabled
Password Check Setup
Boot To OS/2 > 64MB No
L1 Cache Reserved
L2 Cache Enabled
System BIOS Cacheable Enabled
SDRAM Timing by SPD Disables
SDRAM Frequency 100MHz
SDRAM CAS# Latency 2.5
SDRAM Bank Interleave Disabled
AGP Mode 4X
AGP Comp. Driving Auto
Manual AGP Comp. Driving CB
AGP Aperture Size 64MB
Auto detect DIMM/PCI Clk Disabled
CLK Gen Spread Spectrum Disabled
ESC : Quit : Select Item
F1 : Help PU/PD/+/- : Modify
F5 : Old Values (Shift)F2 : Color
F6 : Load BIOS Defaults
F7 : Load Setup Defaults
Quick Boot If you enable this item, the system starts
up more quickly be elimination some of
the power on test routines.
1st
Boot Device
2nd
Boot Device
3rd
Boot Device
Use these items to determine the device
order the computer uses to look for an
operating system to load at start-up time.
Try Other Boot
Device
If you enable this item, the system will
also search for other boot devices if it
fails to find an operating system from the
first two locations.

27
S.M.A.R.T. for
Hard Disks
Enable this item if any IDE hard disks
support the S.M.A.R.T. (Self-
Monitoring, Analysis and Reporting
Technology) feature.
BootUp Num-
Lock
This item determines if the Num Lock
key is active or inactive at system start-
up time.
Floppy Drive
Swap
If you have two diskette drives installed
and you enable this item, drive A
becomes drive B and drive B becomes
drive A.
Floppy Drive
Seek
If you enable this item, your system will
check all floppy disk drives at start up.
Disable this item unless you are using an
old 360KB drive.
PS/2 Mouse
Support
Enable this item if you plan to use a PS/2
mouse.
Password Check If you have entered a password for the
system, use this item to determine, if the
password is required to enter the Setup
Utility (Setup) or required both at start-
up and to enter the Setup Utility
(Always).
Boot to OS/2 >
64MB
Enable this item if you are booting the
OS/2 operating system and you have
more than 64MB of system memory
installed.
L1/L2 Cache Leave these items enabled since all the
processors that can be installed on this
board have internal L1/L2 cache
memory.
System BIOS
Cacheable
If you enable this item, a segment of the
system BIOS will be copied to main
memory for faster execution.
SDRAM Timing
By SPD
This item allows you to enable or disable
the SDRAM timing defined by the Serial
Presence Detect electrical.
SDRAM
Frequency
This item determines frequency of
SDRAM memory.

28
SDRAM CAS#
Latency
This item determines the operation of
SDRAM memory CAS (column address
strobe). It is recommended that you leave
this item at the default value. The 2T
setting requires faster memory that
specifically supports this mode.
SDRAM Bank
Interleave
Enable this item to increase SDRAM
memory speed. When enabled, separate
memory banks are set for odd and even
addresses and the next byte of memory
can be accessed while the current byte is
being refreshed.
AGP Comp.
Driving
Use this item to signal driving current on
AGP cards to auto or manual. Some
AGP cards need stronger than normal
driving current in order to operate. We
recommend that you set this item to the
default.
Manual AGP
Comp. Driving
When AGP Driving is set to Manual, use
this item to set the AGP current driving
value.
AGP Mode This item provides the OnBoard VGA
mode with three options of 1,2, 4
multiplied frequency.
AGP Aperture
Size
This item defines an AGP for the
graphics. Leave this item at the default
value 64MB.
Auto detect
DIMM/PCI
Clock
When this item is enabled, BIOS will
disable the clock signal of free
DIMM/PCI slots.
CLK Spread
Spectrum
Use this item to set the system bus
spread spectrum for the installed
processor.

29
Power Management Setup Page
This page sets up some parameters of system power management
operation.
AMIBIOS SETUP – POWER MANAGEMENT SETUP
ACPI Aware O/S Yes
Power Management/APM Disabled
Video Power Down Mode Suspend
Hard Disk Power Down Mode Standby
Standby Time Out(Minute) Disabled
Suspend Time Out(Minute) Disabled
PowerOn by LAN/Ring Disabled
PowerOn by Onchip LAN Disabled
PowerOn by KBC Disabled
Wake up key Any key
Wake up password N/A
PowerOn by RTC Alarm Disabled
RTC Alarm Date 15
RTC Alarm Hour 12
RTC Alarm Minute 30
RTC Alarm Second 30
ACPI Aware
O/S
This item supports ACPI (Advanced
Configuration and Power management
Interface). Use this item to enable or disable
the ACPI feature.
Power
Management
Use this item to enable or disable a power
management scheme. If you enable power
management, you can use the items below
to set the power management operation.
Both APM and ACPI are supported.
Video Power
Down Mode
Use this item to determine which power-
saving mode is required to power down the
graphics sub-system. You can force the
graphics to power down in Stand By or
Suspend modes, or you can disable the
powerdown.

30
Hard Disk
Power Down
Mode
Use this item to determine which power-
saving mode is required to power down the
hard disk drive(s). You can force the hard
disk to power down in Stand By or Suspend
modes, or you can disable the powerdown.
Standby Time
Out (Minute)
This sets the timeout for Standby mode in
minutes. If the time selected passes without
any system activity, the computer will enter
power-saving Standby mode.
Suspend Time
Out (Minute)
This sets the timeout for Suspend mode in
minutes. If the time selected passes without
any system activity, the computer will enter
power-saving Suspend mode.
PowerOn by
LAN/Ring
The system can be turned off with a
software command. If you enable this item,
the system can automatically resume if there
is an incoming call on the Modem. You
must use an ATX power supply in order to
use this feature.
PowerOn by
OnChip LAN
the system can automatically resume on
OnChip LAN. You must use an ATX power
supply in order to use this feature.
PowerOn by
KBC
Wake up key
Wake up
password
If you enable this item, system can
automatically resume by pressing hot keys
on the keyboard or typing in the password.
You must enable the Keyboard Power On
jumper and use an ATX power supply in
order to use this feature.
PowerOn by
RTC Alarm /
Date / Hour /
Minute /
Second
the system can automatically resume at a
fixed time based on the system’s RTC
(realtime clock). Use the items below this
one to set the date and time of the wake-up
alarm. You must use an ATX power supply
in order to use this feature.

31
PCI / Plug and Play Setup Page
This page sets up some parameters for devices installed on the PCI
bus and those utilizing the system plug and play capability.
AMIBIOS SETUP – PCI / PLUG AND PLAY SETUP
Plug and Play Aware O/S Yes
Share Memory Size 32MB
Primary Graphics Adapter PCI
Allocate IRQ for PCI VGA Yes
Plug and Play
Aware O/S
Enable this item if you are using an O/S that
supports Plug and Play such as Windows 95
or 98.
Share
Memory Size
This item lets you allocate a portion of the
main memory for the onboard VGA display
application with three options of
8/16/32MB.
Primary
Graphics
Adapter
This item indicates if the primary graphics
adapter uses the PCI or the AGP bus. The
default AGP setting still lets the onboard
display work and allows the use of a second
display card installed in an AGP slot.
Allocate IRQ
for PCI VGA
If this item is enabled, an IRQ will be
assigned to the PCI VGA graphics system.
You set this value to No to free up an IRQ.

32
Load Optimal Settings
If you select this item and press Enter a dialog box appears. If you
press Y, and then Enter, the Setup Utility loads a set of fail-safe
default values. These default values are not very demanding and
they should allow your system to function with most kinds of
hardware and memory chips.
Note: It is highly recommended that users enter this option to
load optimal values for accessing the best performance.
Load Best Performance Settings
If you select this item and press Enter a dialog box appears. If you
press Y, and then Enter, the Setup Utility loads a set of best-
performance default values. These default values are quite
demanding and your system might not function properly if you are
using slower memory chips or other low-performance components.

33
Features Setup Page
This page sets up some parameters for those peripheral devices
connected to the system.
AMIBIOS SETUP – FEATURES SETUP
OnBoard FDC Disabled
OnBoard Serial PortA 3F8h/COM1
OnBoard IR Port Disabled
OnBoard Parallel Port 378h
Parallel Port Mode SPP
Parallel Port IRQ 7
Parallel Port DMA N/A
OnBoard Game Port 201h
OnBoard MIDI Port 300h
MIDI Port IRQ 10
OnBoard IDE Both
OnChip LAN Disabled
OnBoard AC’97 Audio Disabled
OnBoard MC’97 Modem Auto
USB Controller All USB Port
USB Device Legacy Support Disabled
ESC : Quit : Select
Item
OnBoard FDC Use this item to enable or disable the
onboard floppy disk drive interface.
OnBoard Serial
PortA
Use this item to enable or disable the
onboard COM1 serial port, and to assign a
port address.
OnBoard IR
Port
onboard infrared port, and to assign a port
address.
Parallel Port
Mode
Use this item to set the parallel port mode.
You can select SPP (Standard Parallel
Port), ECP (Extended Capabilities Port),
EPP (Enhanced Parallel Port), or ECP +
EPP.
Parallel Port
IRQ
Use this item to assign IRQ to the parallel
port.
Parallel Port
DMA
Use this item to assign a DMA channel to
the parallel port.

34
OnBoard
Game Port
This item enables or disables the I/O
address for the game port.
OnBoard MIDI
Port
onboard MIDI port, and to assign a port
address.
MIDI Port IRQ Use this item to assign IRQ 7 to the
parallel port.
OnBoard IDE Use this item to enable or disable the
onboard IDE channel.
OnChip LAN Use this item to enable or disable the
OnChip LAN.
OnBoard
AC’97 Audio
This item enables or disables the AC’97
audio chip.
OnBoard
MC’97 Modem
This item enables or disables the MC’97
modem chip.
USB
Controller
Use this item to select the USB ports or
disabled.
USB Device
Legacy
Support
This item allows you to enable the USB
device, if you have installed a USB device
on the system board.

35
CPU PnP Setup Page
This page helps you manually configure the mainboard for the
CPU. The system will automatically detect the type of installed
CPU and make the appropriate adjustments to the items on this
page.
AMIBIOS SETUP – CPU PnP SETUP
©2000 American Megatrends, Inc. All Rights Reserved
CPU BRAND INTEL
CPU Type Pentium 4
CPU Speed 800 MHz
CPU Ratio Selection 8.0x
CPU Frequency 100 MHz
F6 : Load Optimal values
F7 : Load Best performance values
CPU
BRAND/Type/
Core
Voltage/Ratio
/Frequency
These items show the type, core voltage,
ratio and frequency of CPU installed in your
system.
CPU Speed This item decides CPU speed installed in
your system.

36
Hardware Monitor Page
This page sets up some parameters for the hardware monitoring
function of this mainboard.
AMIBIOS SETUP – HARDWARE MONITOR
*** System Hardware ***
Vcore 1.632V
Vcc 2.5V 2.496V
Vcc 3.3V 3.392V
Vcc 5V 4.972V
+12V 11.968V
-12V -0.907V
SB5V 5.053V
VBAT 3.488V
SYSTEM Fan Speed 0 RPM
CPU Fan Speed 1350 RPM
Power Temperature 33 C/91 F
SYSTEM Temperature 39 C/102 F
CPU Temperature 55 C/131 F
CPU / System
Temperature
These items display CPU and system
temperature measurement.
FANs &
Voltage
Measurements
These items indicate cooling fan speeds in
RPM and the various system voltage
measurements.

37
Change Password
If you highlight this item and press Enter, a dialog box appears that
you can enter a Supervisor password. You can enter no more than
six letters or numbers. Press Enter after you have typed in the
password. There will be the second dialog box asking you to retype
the password for confirmation. Press Enter after you have retyped
it correctly. Then, the password is required for the access to the
Setup Utility or for it at start-up, depending on the setting of the
Password Check item in Advanced Setup.
Exit
Highlight this item and press Enter to save the changes that you
have made in the Setup Utility configuration and exit the program.
When the Save and Exit dialog box appears, press Y to save and
exit, or press N to exit without saving.

4: Software & Applications
39
Chapter 4
Software & Applications
Introduction
The support software CD-ROM attached to this mainboard
package contains all necessary drivers and utility programs for
properly running our products. You can find out a brief description
of each software program and the location for your mainboard
version as below. More information on some programs is available
in a README file located in the same directory as the software.
If the operating system of your system is Windows 98, it will
automatically install all drivers and utilities for your board.
See the Auto-Installing under Windows 98 section.
Installing Support Software
The software on this support CD-ROM is for Windows
95/NT/2000 and Windows 98. The installation procedure differs
depending on which Operating System you have, but the automatic
installation is now for Win98/WinME/Win2000.
Installing under Windows 95/NT
To install support software for Windows 95/NT follow this general
procedure:
1. Insert the support CD-ROM disc in the CD-ROM drive.
(The system might get an error message from the PnP function.
Don’t care the message. You don’t really need that file to install
the drivers)
2. Use My Computer or Windows Explorer to look at the directory
structure. You must use the Open command in the right-button
menu. Double-clicking on the drive icon will result in an error
message because the disc’s AutoRun feature doesn’t work in
Windows 95/NT.
3. Execute the EXE file name given in the description below.

40
Note: The correct path name for each software driver is provided,
where D: identifies the CD-ROM drive letter – modify if necessary.
Bus Master IDE Driver
The IDE Bus Master Drivers allows the system to properly manage
the IDE channels on the mainboard. You need to install two drivers
if you are running Windows 9x.
Windows 9x – D:VIAIDE
Display Drivers and Software
Find the Display drivers and software here:
D:VGAP4M266
USB Driver
The USB Driver allows the system to recognize the USB ports on
the mainboard. You need to install this driver if you are running
Windows 95. Windows 95 OSR2 does not require this driver.
This driver is available for:
Win95 – D:USBEUSBSUPPUSBSUPP.EXE
Win95 (Chinese) – D:USBCUSBSUPPCUSBSUPP.EXE
3Deep Software
Find the software here:
D:3Deep3Deep 3.3Setup.EXE
Sound Driver
D:SoundDriverVIA8233
Lan Driver
D:LanVIA8233

41
BIOS Update Utility
The BIOS Update utility allows you to update the BIOS file on the
mainboard to a newer version. You can download the latest version
of the BIOS setup available for your mainboard from the website.
D:UTILITYAMINFXXX.EXE
PC-Cillin Software
The PC-cillin software program provides anti-virus protection for
your system.
This program is available for:
Win9x – D:PC-CILLIN
Auto-installing under Windows 98
The support software CD-ROM disc loads automatically under
Windows 98. When you insert the CD-ROM disc in the system
CD-ROM drive the Autorun feature will automatically bring up the
install screen. The screen has three buttons on it, Setup, Browse
CD and Exit. See the following screen illustration.
When you click on the Setup button the software installation
program will run and you can select what kind of installation you
want to do, as explained later in this section.
The Browse CD button is the standard Windows command that
allows you to examine the contents of the disc using the Windows
98 file browsing interface.

42
The Exit button closes the Auto Setup window. To run the
program again, reinsert the CD-ROM disc in the drive or click on
AutoRun in the context sensitive menu for the CD-ROM drive icon
in a file browser window.
Installing Software with Auto Setup
To install support software for the system board follow this
procedure:
1. Click on the Setup button. The install program will load
and display the following screen. Click the Next button.
2. Select the items that you want to setup by clicking on it
(the default options are recommended). Click the Next
button to proceed.

43
3.The support software will automatically install.
Once any of the installation procedures start, software is
automatically installed in sequence. You will need to
follow the onscreen instructions, confirm commands and
allow the computer to restart as few times as is needed to
complete installing whatever software you selected to
install. When the process is finished, all the support
software will be installed and working.
There are some utilities that you have to manually install if you
need, check to the above section.

Docslide.us manual de-la-placa-pc-400

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