Viglen, EMC and the ‘CE’ mark
CE Marking
European standards are being harmonised across borders. If products comply with the same standards in all
European countries, product exporting and importing is made simple - paving our way to a common market. If you buy
a product with a 'CE' mark on it (shown below), on the box, in the manual, or on the guarantee - it complies with the
currently enforced directive(s).
Introduction to EMC
EMC (Electromagnetic Compatibility) is the term used to describe certain issues with RF (Radio Frequency) energy.
Electrical items should be designed so they do not interfere with each other through RF emissions. E.g. If you turn on
your microwave, your television shouldn't display interference if both items are CE marked to the EMC directive.
If emitted RF energy is not kept low, it can interfere with other electrical circuitry - E.g. Cars Automatic Braking
Systems have been known to activate by themselves while in a strong RF field. As this has obvious repercussions
ALL electrical products likely to cause RF related problems have to be 'CE' marked from 1st January 1996 onwards.
If a product conforms to the EMC directive, not only should its RF emissions be very low, but its immunity to RF energy
(and other types) should be high. The apparatus has to resist many 'real world' phenomena such as static shocks and
mains voltage transients.
Viglen’s Environment laboratory
To gain a 'CE' mark, the Viglen computer range has had to undergo many difficult tests to ensure it is
Electromagnetically Compatible. These are carried out in the in-house 'Environment lab' at Viglen Headquarters. We
have made every effort to guarantee that each computer leaving our factory complies fully with the correct standards.
To ensure the computer system maintains compliance throughout its functional life, it is essential you follow these
Install the system according to Viglen‟s instructions
If you open up your Viglen:
Keep internal cabling in place as supplied.
Ensure the lid is tightly secured afterwards
Do not remove drive bay shields unless installing a 'CE' marked peripheral in its place
The clips or „bumps' around the lips of the case increase conductivity - do not remove or damage.
Do not remove the ferrite ring from the L.E.D cables.
Only use your Viglen computer with 'CE' marked peripherals
This system has been tested in accordance with European standards for use in residential and light industrial areasthis specifies a 10 meter testing radius for emissions and immunity. If you do experience any adverse affects which
you think might be related to your computer, try moving it at least 10 meters away from the affected item. If you still
experience problems, contact Viglen‟s Technical Support department who will put you straight through to an EMC
engineer - s/he will do everything possible to help. If modifications are made to your Viglen computer system, it might
breach EMC regulations. Viglen take no responsibility (with regards to EMC characteristics) of equipment which has
been tampered with or modified.
This symbol on the product or on its packaging indicates that the product shall not be treated as household
waste. Instead it shall be handed over to the applicable collection point for recycling of electrical and
electronic equipment. By ensuring this product is disposed of correctly, you will help prevent potential
negative consequences for the environment and human health, which could otherwise be caused by
inappropriate waste handling of this product. The recycling of materials will help to conserve natural
resources. For more detailed information about recycling of this product, please contact your local city
office, your household waste disposal service or Viglen Ltd.
Vig625M Motherboard Manual
Copyrights and Trademarks
Please note
The material in this manual is subject to change without notice.
Microsoft, Windows, Windows NT, Windows 95,Windows 98, Windows ME, Windows
2000 Pro, Windows XP Pro, Windows Vista, Windows 7 and MS-DOS are registered
trademarks of Microsoft Corporation. IBM PC, XT, AT and PS/2 are trademarks of
International Business Machines Corporation. Pentium® and Pentium® Pro are
registered trademarks of Intel® Corporation. All other trademarks are acknowledged.
JAC-UP, Genie, Contender, Dossier, Vig, Viglen, and Envy are trademarks of Viglen
Copyright and Patents
This manual and all accompanying software and documentation are copyrighted and all
rights reserved. This product, including software and documentation, may not, in whole
or in part, be copied, photocopied, translated or reduced to any electronic or machinereadable form, without prior written consent except for copies retained by the purchaser
for backup.
© Copyright 2010 Viglen Limited
All Rights Reserved
Vig625M Manual Version 1.0
Printed in the United Kingdom
No warranty or representation, either expressed or implied, is made with respect to this
documentation, its quality, performance, merchantability or fitness for a particular
purpose. As a result the documentation is licensed as is, and you, the licensee, are
assuming the entire risk as to its quality and performance. The vendor reserves the right
to revise this operation manual and all accompanying software and documentation and
to make changes in the content without obligation to notify any person or organisation of
the revision or change.
In no event will the vendor be liable for direct, indirect, special, incidental or
consequential damages arising out of the use or inability to use this product or
documentation, even if advised of the possibility of such damages. In particular, the
vendor shall not have liability for any hardware, software or data stored or used with the
product, including the costs of repairing, replacing or recovering such hardware, software
or data.
Vig625M Motherboard Manual
Chapter 1: Motherboard Overview
Feature Summary
System Board Components
Overview of System Board Components
Back Panel Connectors
Chapter 2: System Board Options
Overview of Jumper Settings
System Board Jumper Settings
Motherboard Connectors
Front Panel Connectors
Upgrading the CPU
Installing & Removing Memory Modules
Replacing the Clock/CMOS RAM Battery
Chapter 3: Solving Problems
Resetting the System
Troubleshooting Procedures
Problems Operating Add-in Boards
Problems & Suggestions
Chapter 4: System BIOS
What is the BIOS?
The Power-On Sequence
BIOS Upgrades
Using AWDFLASH to Update the BIOS
Configuring the Motherboard using BIOS Setup
Main BIOS Menu Screen
Cell Menu
Load Optimized Defaults
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Chapter 5: Technical Information
Enhanced IDE
Operating Systems and Hard Drives
Other Information
Chapter 6: Glossary
Chapter 7: Suggestions
Vig625M Motherboard Manual
Chapter 1: Motherboard Overview
This manual describes the Viglen Vig625M motherboard inside your computer. The
motherboard is the most important part of your computer. It contains all of the CPU,
memory and graphics circuitry that make the computer work.
The Vig625M motherboard with microATX form factor offers legacy to premium features.
Parallel port, integrated VGA, Intel HD Video experience, High Definition Audio and
integrated 10/100/100 network connection, to enrich your multimedia creation
The Vig625M supports Intel Core 2 Quad processors and Intel Core 2 Duo processors
and is Microsoft Windows 7 Premium WHQL certified.
This manual contains technical information about the Viglen Vig625M motherboard and
other hardware components inside your computer. If you are new to computers we
recommend that you read the user guide first. If you are an experienced computer user
this manual should provide all the information you will need to perform simple upgrades
and maintenance.
We hope that this manual is both readable and informative. If you have any comments
for suggestions about how we could improve the format then please fill out the form at
the back of the manual and send it to us.
Above all we hope that you enjoy using your Viglen computer.
Vig625M Motherboard Manual
Feature Summary
The Vig625M is based on the Intel® G41 & ICH7/ICH7R chipsets for optimal system
efficiency. Designed to fit the advanced Intel® Core 2 Duo/Quad/Pentium/Celeron
LGA775 processor, the Vig625M delivers a high performance and professional desktop
platform solution.
The motherboard features:
Form factor:
 Micro ATX Form Factor: 200mm by 244mm
Intel® Core2 Quad/Core 2 Duo/Pentium Dual-Core/Celeron 400 in LGA775
Supports 4 pin CPU fan pin-header with fan speed control
Supports FMB 05a@95W
Supports FSB 800/1066/1333MHz
Supports VRD 11.1 standard
Main memory:
Two DDR3 DIMM sockets.
Supports memory speeds 800/1066/1333MHz (OC)
Support for up to 8GB of DDR2 DIMM memory.
North Bridge: Intel G41 chipset
o Integrated Intel Graphics Media Accelerator (Intel GMA X4500)
o Supports Microsoft DirectX 10
South Bridge: Intel ICH7 chipset
o Hi-Speed USB (USB2.0) controller, 480Mb/sec, up to 8 ports
o 4 SATAII ports with transfer rate up to 3Gb/s
 Realtek ALC889 HD (High Definition) Audio compatible audio subsystem
 Supports 7.1 channels audio out
 Compliant with Azalia 1.0 Spec
 Realtek RTL8111DL 10/100/1000Mb/s Mbit/sec Fast Ethernet by Realtek.
 Compliance with PCI 2.2
 Supports ACPI Power Management
Vig625M Motherboard Manual
Rear Panel Port Support
1x PS/2 mouse port
1x PS/2 keyboard port
1x DVI-D port
1x VGA port
4x USB 2.0 Ports
1x RJ-45 LAN Jack
6 flexible audio jacks
Internal Connectors
1x IDE Connector
1x Floppy Connector
2x USB 2.0 pin headers
1x CD-in pin header
1x SPDIF-out pin header
1x Front panel audio pin header
1x Serial port pin header
1x Parallel port connector
1x Chassis intrusion switch pin header
1x TPM module connector
1x OC Switch
4x Serial ATAII connectors
Expansion Capabilities
One PCI Express x16 slot (PCI Express Bus SPEC V1.0 compliant)
One PCI Express x1 slot
One 32bit v2.3 PCI bus add-in card connectors, supports 3.3V/5V PCI bus
Vig625M Motherboard Manual
The motherboard is designed to support the following processors:
Intel Core 2 Quad processor in an LGA775 socket
Intel Core 2 Duo processor in an LGA775 socket
Intel Pentium Dual-Core processor in an LGA775 socket
Intel Celeron Dual-Core processor in an LGA775 socket
Intel Celeron processor Sequence 400 in an LGA775 socket
This motherboard is designed to support processors with a maximum wattage of 95W.
The processors listed above are only supported when falling within the wattage
requirements of the board.
The motherboard has two DDR3 DIMM sockets. Minimum memory size is 512MB;
maximum memory size is 4GB. The BIOS automatically detects memory type, size, and
The motherboard supports the following memory features:
DDR3 SDRAM DIMMs with gold plated contacts, with the option to raise the voltage
to support higher performance DDR3 SDRAM DIMMs
Dual channel interleaved mode support
Unbuffered, single-sided or double-sided DIMMs with the following restriction:
Double-sided DIMMs with x16 organization are not supported.
8 GB maximum total system memory.
Serial Presence Detect
DDR3 800/1066/1333 MHz(OC) SDRAM DIMMs
The Intel G41 Express chipset consists of the following devices:
Intel 82G41 Graphics and Memory Controller Hub (GMCH) with Direct Media
Interface (DMI) interconnect
Intel 82801GB I/O Controller Hub (ICH7) with DMI interconnect
The GMCH component provides interfaces to the CPU, memory, PCI Express, and the
DMI interconnect. The component also provides integrated graphics capabilities
supporting 3D, 2D, and display capabilities. The ICH7 is a centralized controller for the
board‟s I/O paths.
Vig625M Motherboard Manual
The chipset supports the following features:
Onboard Graphics
Dynamic Video Memory Technology
Serial ATA
Parallel IDE
Intel G41 Graphics Subsystem
The Intel G41 Express chipset contains two separate, mutually exclusive graphics
options. Either the Intel Graphics Media Accelerator X4500 (Intel GMA X4500) graphics
controller (contained within the 82G41 GMCH) is used, or a PCI Express x16 add-in card
can be used. When a PCI Express x16 add-in card is installed, the Intel GMA X4500
graphics controller is disabled.
Intel Graphics Media Accelerator X4500 Graphics Controller
The Intel GMA X4500HD graphics controller features the following:
High quality texture engine
o DirectX10* and OpenGL* 2.0 compliant
o Shader Model 4.0
3D Graphics Rendering enhancements
o 1.6 dual texture GigaPixel/sec max fill rate
o 16-bit and 32-bit colour
o Vertex cache
o Hi-Definition content at up to 1080p resolution
o Dynamic Video Memory Technology (DVMT) 5.0 uses system memory
depending on the OS and the amount of memory installed
o Supports digital and analog displays up to 2048 x 1536 at 75 Hz refresh
(QXGA); also supports 1920 x 1080 resolutions for full High Definition video
playback quality
o Dual independent display support
LAN Subsystem
The Realtek 8111DL component provides an interface to the back panel RJ-45 connector
with integrated LEDs. This physical interface may alternately be provided via the CNR
The Realtek 8111DL provides the following functions:
10/100/1000 Ethernet LAN Connectivity
Supports RJ-45 connector with status indicator LEDs
Full driver compatibility
ACPI Power Management
Programmable transit threshold
Configuration EEPROM that contains the MAC address
Vig625M Motherboard Manual
RJ-45 LAN Connector LEDs
Two LEDs are built into the RJ-45 LAN connector. The following table describes the LED
states when the board is powered up and the LAN subsystem is operating.
Table 1: LAN LED Status
Audio Subsystem
The onboard audio subsystem consists of the following:
Realtek ALC889 audio codec
Back panel audio connectors
Component-side audio headers/connectors:
Intel® High Definition Audio front panel header
S/PDIF connector
The audio subsystem supports the following features:
A signal-to-noise (S/N) ratio of 95 dB
Independent 7.1 audio playback from back panel connectors and stereo playback
from the Intel High Definition Audio front panel header.
Meets Microsoft Windows Vista (WLP 3.08) premium requirements.
Universal Serial Bus (USB)
The motherboard has four USB ports and a further five can be added via internal
headers; one USB peripheral can be connected to each port. For more than nine USB
devices, an external hub can be connected to either port. The motherboard fully
supports the universal host controller interface (UHCI) and uses UHCI-compatible
software drivers.
USB features include:
Self-identifying peripherals that can be plugged in while the computer is running.
Automatic mapping of function to driver and configuration.
Supports isochronous and asynchronous transfer types over the same set of wires.
Supports up to 127 physical devices.
Guaranteed bandwidth and low latencies appropriate for telephony, audio, and other
Error-handling and fault-recovery mechanisms built into the protocol.
NOTE: Computer systems that have an unshielded cable attached to a USB port may
not meet FCC Class B requirements, even if no device or a low-speed (sub-channel)
Vig625M Motherboard Manual
USB device is attached to the cable. Use shielded cable that meets the requirements for
high-speed (fully rated) devices.
IDE Support
The motherboard has one independent bus-mastering PCI IDE interfaces. These
interfaces support PIO Mode 3, PIO Mode 4, ATAPI devices (e.g., CD-ROM), Ultra
DMA/66 & Ultra DMA/100 synchronous-DMA mode transfers. The BIOS supports logical
block addressing (LBA) and extended cylinder head sector (ECHS) translation modes.
The BIOS automatically detects the IDE device transfer rate and translation mode.
Programmed I/O operations usually require a substantial amount of processor
bandwidth. However, in multitasking operating systems, the bandwidth freed by bus
mastering IDE can be devoted to other tasks while disk transfers are occurring.
LS-120 Support
LS-120 MB Diskette technology enables you to store 120MB of data on a single, 3.5”
removable diskette. LS-120 technology is backward (both read and write) compatible
with 1.44MB and 720KB DOS-formatted diskette and is supported by Windows 95 and
Windows NT operating system.
The Vig625M board allows connection of an LS-120 compatible drive and a standard
3½” floppy drive. The LS-120 drive can be configured as a boot device before a floppy
drive, if selected in the BIOS setup utility.
NOTE: If you connect an LS-120 drive to an IDE connector and configure it as the “A”
drive and configure a standard 3.5” floppy as “B” drive, the standard floppy must be
connected to the floppy drive cable’s “A” connector (the connector at the end of the
The BIOS setup utility can be configured to boot firstly from either the LS120 or standard
3½” floppy drive.
Real-Time Clock, CMOS SRAM, and Battery
The real-time clock is compatible with DS1287 and MC146818 components. The clock
provides a time-of-day clock and a multi-century calendar with alarm features and
century rollover. The real-time clock supports 256 bytes of battery-backed CMOS SRAM
in two banks that are reserved for BIOS use.
The time, date, and CMOS values can be specified in the Setup program. The CMOS
values can be returned to their defaults by using the Setup program.
An external coin-cell (CR 2032) battery powers the real-time clock and CMOS memory.
When the computer is not plugged into a wall socket, the battery has an estimated life of
three years. When the computer is plugged in, the 3.3-V standby current from the power
supply extends the life of the battery. The clock is accurate to  13 minutes/year at 25 ºC
with 3.3 V applied.
Vig625M Motherboard Manual
I/O Interface Controller
The motherboard uses the I/O controller which features:
Serial ports:
o Internal send/receive 16-byte FIFO buffer.
o Four internal 8-bit DMA options for the UART with SIR support (USI).
Multimode bidirectional parallel port:
o Standard mode, IBM and Centronics compatible.
o Enhanced parallel port (EPP) mode with BIOS and driver support.
o High-speed extended capabilities port (ECP) mode.
Floppy disk controller:
o N82077 compatible.
o Single diskette drive interface.
o 16-byte FIFO.
o High-performance digital data separator (DDS).
o PC-AT and PS/2 drive-mode support.
Keyboard and mouse controller:
o Industry standard 8042A compatible.
o General-purpose microcontroller.
o 8-bit internal data bus.
ISA Plug-and-Play compatible register set.
PCI PME interface.
Intelligent auto power management:
o Shadowed write-only registers for ACPI compliance.
o Programmable wake up event interface.
By default, the I/O controller interfaces are automatically configured during boot up. The
I/O controller can also be manually configured in the Setup program.
Serial Ports
The serial port is a 16550A high speed communications port that sends/ receives 16
bytes FIFOs. You can attach a serial mouse or other serial devices directly to the
Parallel Port
The connector for the multimode bidirectional parallel port is a 25-pin D-Sub connector
located on the back panel. In the Setup program, the parallel port can be configured for
the following:
Compatible (standard mode).
Bidirectional (PS/2 compatible).
Extended Parallel Port (EPP).
Enhanced Capabilities Port (ECP).
Vig625M Motherboard Manual
Floppy Controller
The I/O controller is software compatible with the N82077 floppy drive controllers and
supports both PC-AT and PS/2 modes. In the Setup program, the floppy interface can
be configured for the following floppy drive capacities and sizes:
360 KB, 5.25-inch
1.2 MB, 5.25-inch
720 KB, 3.5-inch
1.44MB, 3.5 inch
1.2 MB, 3.5-inch (driver required)
2.88 MB, 3.5-inch
PS/2 Keyboard and Mouse Interface
PS/2 keyboard and mouse connectors are located on the back panel. The +5 V lines to
these connectors are protected with a PolySwitch circuit that, like a self-healing fuse, reestablishes the connection after an over-current condition is removed.
The keyboard controller supports the hot-key sequence <Ctrl><Alt><Del> for a software
reset. This key sequence resets the computer‟s software by jumping to the beginning of
the BIOS code and running the Power-On Self Test (POST).
Audio Subsystem
These audio connectors are used for audio devices. You can differentiate the colour of
the audio jacks for different audio sound effects.
Line-In (Blue) - Line In is used for external CD player, tape player or other audio
Line-Out (Green) - Line Out, is a connector for speakers or headphones.
Mic (Pink) - Mic, is a connector for microphones.
RS-Out (Black) – Rear-Surround Out in 4/5.1/7.1 channel mode.
CS-Out (Orange) – Center/Subwoofer Out in 5.1/7.1 channel mode.
SS-Out (Gray) – Side-Surround Out 7.1 channel mode.
Management Extension Component
System BIOS
The system BIOS, from Phoenix Technology, provides ISA and PCI compatibility. The
BIOS is contained in a flash memory device on the system board. The BIOS provides
the power-on self test (POST), the system Set-up program, a PCI and IDE autoconfiguration utility, and BIOS recovery code.
PCI Auto Configuration
The PCI auto-configuration utility works in conjunction with the Set-up program to
support using PCI add-in boards in the system. When you turn on the system power
after installing a PCI board, the BIOS automatically configures interrupts, DMA channels,
I/O space, and so on. Since PCI add-in boards use the same interrupt resources as ISA
Vig625M Motherboard Manual
add-in boards, you must specify the interrupts used by ISA boards in the set-up program.
The PCI auto-configuration program complies with version 2.1 of the PCI BIOS
IDE Auto Configuration
If you install an IDE drive in the system, the IDE auto-configuration utility automatically
detects and configures the drive for operation in the system. This utility eliminates the
need to enter the Set-up program after you install an IDE drive.
Expansion Slots
The system has one PCI bus add-in card connector and one PCI Express x16 connector
and one PCI Express x1 connector.
Vig625M Motherboard Manual
System Board Components
Figure 1: Motherboard Layout & Components
Vig625M Motherboard Manual
Table 2: Motherboard Connection
Parallel Connector (Header)
ATX 4-Pin12V Power Connector
System Fan 2 (Rear)
OC Switch
LGA 775 CPU Socket
CPU Fan Connector
System Fan 2 (Front)
Memory DIMM Slots (DDR3)
ATX 24-Pin Power Connector
IDE Connector
Clear CMOS Jumper
Serial ATA Connectors
Front Panel Connector 1
(Compliant with Intel Front Panel
I/O Connectivity Design Guide)
Front Panel Connector 2
USB header
USB header
S/PDIF-Out Connector
Floppy Disk Drive Connector
Front Panel Audio Connector
CD-In Connector
PCI Slot 32-bit
PCI Express x1 Slot
PCI Express x16 Slot
Chassis Intrusion Connector
Serial Port Connector
TPM Module connector
Rear I/O Connectors
Overview of System Board Components
A – Parallel Connector
This is used to connect parallel port ribbon cables, which allows parallel port devices to
connect to the system from the rear of the chassis.
B – ATX 12V Power Connector
This 12V power connector is used to provide power to the CPU
C - System Fan2
This is used to keep the Motherboard components and other components cool.
D - OC Switch
This allows you to overclock the Front Side Bus (FSB) to increase processor frequency
E – LGA775 pin CPU socket
CPU sits in the LGA775 pin socket.
F – CPU Fan Header
Fan header dedicated purely for the Heatsink to cool the CPU.
G – System Fan 2 header (Front)
This is used to keep the Motherboard components and other components cool.
H – 2 x DIMM Slots
Insert Memory modules DDR3 800/1066/1333MHz (OC).
I – ATX 24 pin Power Connector
This is the main power connector for the motherboard.
J – IDE Connector
This can be used to connect an IDE Hard Disk Drive or even a CD-ROM drive.
Vig625M Motherboard Manual
K – Clear CMOS jumper
This allows you to clear the CMOS of the Motherboard when moving the jumper from
pins 1-2 to 2-3.
L – Serial ATA II Connectors
Can connect up to 4 SATA devices (Hard Disk Drive, CD-ROM)
M – Front Panel Connector 1
Controls the Hard Disk Drive LED, Power Switch, Reset Switch and Power LED
N – Front Panel Connector 2
Controls the Speaker and Power LED
O – USB header
Allows up to 2 USB devices to be connected to each USB header
P – USB header
Allows up to 2 USB devices to be connected to each USB header
Q – S/PDIF-Out Connector
This connector is used to connect S/PDIF (Sony & Phillips digital Interconnect Format)
interface for digital transmission.
R – Floppy Connector
This connector allows you to connect a floppy drive to the chassis.
S – Front Panel Audio Connector
This header supports HD Audio which allows the Motherboard to support front panel
T – CD-In Connector
This connector is provided for external audio input.
U – PCI Slot 32bit
The PCI slots support LAN cards, USB cards and other add-on cards that comply with
PCI specifications.
V – PCI Express x1 Slot
PCI Express x1 supports up to 250 MB/s
W – PCI Express x16 Slot
PCI Express x16 supports up to 4.0 GB/s transfer rate.
X – Chassis Intrusion
Notifies before entering OS that the Chassis panel may have been tampered with.
Y – Serial Port Connector
This connector allows you to connect a serial device to the chassis
Vig625M Motherboard Manual
Z – TPM Module Connector
This connector connects to a TPM (Trusted Platform Module) module.
AA - Rear I/O Connector
Consists of multiple components to connect i.e. VGA, PS/2 Keyboard and Mouse.
Vig625M Motherboard Manual
Back Panel Connectors
The motherboard external IO connectors are attached to a metallic I/O shield. This shield
serves several purposes:
It protects the sensitive motherboard from any external EMC interference.
It stops the computer from interfering with other electrical devices.
It allows the motherboard to be easily upgraded in the future without having to resort
to buying a whole new case. Simply change the I/O shield to match the motherboard.
The I/O shield provides external access to PS/2 keyboard and mouse connectors as well
as one serial port, one parallel port, four USB ports, one LAN Port and the audio
Figure 2: Back Panel Connectors
NOTE: Power to the computer should be turned off before a keyboard or mouse is
connected or disconnected.
The I/O shield provides external access to the following:
1. 1x PS/2 Keyboard
This port is for a PS/2 Keyboard
2. 1x PS/2 Mouse
This port is for a PS/2 Mouse
3. 1x DVD-D Port
The DVD-D female is provided for monitor DVI Connections.
4. 1x VGA Port
The DB15-pin female is provided for monitor VGA connections.
5. 4x USB ports
The USB (Universal Serial Bus) port is for attaching USB devices such as keyboard,
mouse, or other USB-compatible devices.
Vig625M Motherboard Manual
6. 1x LAN port
The standard RJ-45 LAN jack is for connection to the Local Area Network (LAN). You
can connect a network cable to it.
Figure 3: LAN Port indicators locations
Table 3: LAN Port indicators meanings
7. 6x Audio connectors.
These audio connectors are used for audio devices. You can differentiate the colour of
the audio jacks for different audio sound effects.
Line-In (Blue) - Line In is used for external CD player, tape player or other audio
Line-Out (Green) - Line Out, is a connector for speakers or headphones.
Mic (Pink) - Mic, is a connector for microphones.
RS-Out (Black) – Rear-Surround Out in 4/5.1/7.1 channel mode.
CS-Out (Orange) – Center/Subwoofer Out in 5.1/7.1 channel mode.
SS-Out (Gray) – Side-Surround Out 7.1 channel mode.
Vig625M Motherboard Manual
Chapter 2: System Board Options
The Vig625M motherboard is capable of accepting Intel® Core2 Quad and Core 2 Duo
CPU‟s. RAM can be upgraded to a maximum of 8GB using DDR3 800/1066/1333MHz
(OC) RAM DIMMs Non ECC Unbuffered memory.
Unplug the system before carrying out the procedures described in this chapter.
Failure to disconnect power before you open the system can result in personal
injury or equipment damage. Hazardous voltage, current, and energy levels are
present in this product. Power switch terminals can have hazardous Voltages
present even when the power switch is off.
The procedures assume familiarity with the general terminology associated with
personal computers and with the safety practices and regulatory compliance
required for using and modifying electronic equipment.
Do not operate the system with the cover removed. Always replace the cover
before turning on the system.
As the colours of the wires in the mains lead of this computer may not correspond with the
coloured markings identifying the terminals in your plug precede as follows:
The wire which is coloured green-and-yellow must be connected to the terminal in the plug
which is marked by the letter E or by the safety Earth symbol Q or coloured green or greenand-yellow.
The wire which is coloured blue must be connected to the terminal which is marked with the
letter N or coloured black.
The wire which is coloured brown must be connected to the terminal which is marked with the
letter L or coloured red.
The Viglen Vig625M motherboard
and associated components are
sensitive electronic devices. A small
static shock from your body can
cause expensive damage to your
Vig625M Motherboard Manual
Make sure you are earthed and free of static charge before you open the computer case.
If you are unsure about upgrading your computer, return it to Viglen so a qualified
engineer can perform the upgrade.
1. The best way to prevent static discharge is to buy an anti-static strap from your local
electrical shop. While you are wearing the strap and it is earthed, static charge will be
harmlessly bled to ground.
2. Do not remove the component from its anti-static protective packaging until you are
about to install it.
3. Hold boards by the edges - try not to touch components / interface strips etc.
NOTE: We recommend that you return your computer to the service department for
upgrading. Any work carried out is fully guaranteed. Upgrades should only be carried out
by persons who are familiar with handling IC's, as incorrect installation will invalidate the
Overview of Jumper Settings
The Vig625M motherboard contains the latest technology to offer an almost jumperless
configuration. All Intel® Core 2 Quad and Core 2 Duo CPUs are automatically detected
and the speed is automatically set from the information provided by the CPU.
The only jumpers present on the motherboard are for clearing all the CMOS settings. In
the unlikely event of the CMOS becoming corrupted then jumper JP1 can be set to clear
the contents of the CMOS, and for write protecting the BIOS.
Never remove jumpers using large pliers as this can damage the pins. The best way to
remove a jumper is to use a small pair of tweezers or fine needle-nosed pliers.
Never remove a jumper when the computer is switch on. Always switch the computer off
Vig625M Motherboard Manual
System Board Jumper Settings
Clear CMOS Jumper: JBAT1
The configuration Jumper (JBAT1) allows the user to clear the CMOS. The CMOS RAM
onboard has a power supply from an external battery to keep the data of the system
configuration. The CMOS RAM allows the system to automatically boot OS every time it
is turned on.
Figure 4 – Clear CMOS jumper
Table 4: Clear CMOS Jumper Settings
Function Jumper (JP1) Configuration
The BIOS uses current configuration information and passwords for
Turn off the system and unplug the power cord. Move the jumper from
pins 1-2 (default) to pins 2-3 for about 5~10 seconds. Then move the
jumper back to pins 1-2.
Chassis Intrusion Connector: JCI1
This connector connects to the chassis intrusion switch cable. If the chassis is opened,
the chassis intrusion mechanism will be activated. The system will record this status and
show a warning message on the screen. To clear the warning, you must enter the BIOS
utility and clear the record.
Figure 5 – Chassis Intrusion Connector
Front Panel Audio Connector: JAUD1
This connector allows you to connect the front panel audio and is compliant with Intel
Front Panel I/O Connectivity Design Guide.
Figure 6 – Front Panel Audio Connector
Vig625M Motherboard Manual
Motherboard Connectors
There are connectors on the motherboard for FAN, IDE, Power supply, CD audio,
Floppy, IDE, & Front Panel Connectors. The location and/or details of these connections
are shown below.
Front Panel Connectors
The following are all connectors situated along the front edge of the motherboard. They
are often connected to buttons and LED‟s situated on the front panel of the case.
Figure 7 – JFP1/JFP2 Front Panel Header
Hard Disk L.E.D. Connector
This goes to the Hard Disk L.E.D. on the front panel, which lights up when the IDE Hard
Disk is in use.
Reset switch connector
When these pins are shorted, it will cause the computer to perform a cold reboot.
Power L.E.D.
This attaches to the power L.E.D on the front panel, to display if the computer is active or
Power On/Off
When these pins are shorted it turns the computer on and off.
Vig625M Motherboard Manual
Power Connectors
ATX 24-Pin Power Connector: ATX1
This connector allows you to connect an ATX 24-pin power supply. To connect the ATX
24-pin power supply, make sure the plug of the power supply is inserted in the proper
orientation and the pins are aligned. Then push down the power supply firmly into the
Figure 8 – ATX 24-Pin Power Connector
ATX 12V Power Connector: JPW1
This 12V power connector is used to provide power to the CPU.
Figure 9 – ATX 12V 4-PIN power connector
Make sure that all the connectors are connected to proper ATX power supplies to
ensure stable operation of the Motherboard
ATX 12V power connection should be greater than 18A.
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Floppy Disk Drive Connector: FDD1
This connector is for the provided floppy disk drive (FDD) signal cable. Insert one end of
the cable to this connector, and then connect the other end to the signal connector at the
back of the floppy disk drive.
Figure 10: Floppy Disk Drive Connector
The above connector supports 360KB, 720KB, 1.2MB, 1.44MB or 2.88MB Floppy disk
IDE Connector: IDE1
This connector supports IDE hard disk drives, optical disk drives and other IDE devices.
Figure 11: IDE Connector
If you install two IDE devices on the same cable, you must configure the drives
separately to master / slave mode by setting jumpers. Refer to IDE devices
documentation supplied by the vendors for jumper setting instructions.
Vig625M Motherboard Manual
Serial ATA Connector: SATA1 ~ SATA4
This connector is a high-speed Serial ATA interface port. Each connector can connect to
one Serial ATA device.
Figure 12: Serial ATA Connector
Please do not fold the serial ATA cable into 90-degree angle. Otherwise, data loss may
occur during transmission.
Fan Power Connectors: CPUFAN1, SYSFAN1~2
The fan power connectors support system cooling fan with +12V. When connecting the
wire to the connectors, always note that the red wire is the positive and should be
connected to the +12V; the black wire is Ground and should be connected to GND. If the
motherboard has a System Hardware Monitor chipset on-board, you must use a specially
designed fan with speed sensor to take advantage of the CPU fan control.
Figure 13: Fan Connectors
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S/PDIF-Out Connector: JSPD1
This connector is for an additional Sony/Philips Digital Interface (S/PDIF) port(s).
Connect the S/PDIF Out module cable to this connector, and then install the module to a
slot opening at the back of the system chassis.
Figure 14: S/PDIF-Out Connector
CD-In Connector: CD_IN1
This connector is provided for external audio input.
Figure 15: CD-In Connector
Front USB Connector: JUSB1~2
These connectors are for USB2.0 ports. These USB connectors comply with USB 2.0
specification that supports up to 480 Mbps connection speed. They are also compliant
with Intel I/O connectivity design guide.
Figure 16: Front USB Connector
The pins of VCC and GND must be connected correctly to avoid possible damage
Vig625M Motherboard Manual
TPM Module Connector: JTPM1
This connector connects to a TPM (Trusted Platform Module) module.
Figure 17: TPM Module Connector
Serial Port Connector: JCOM1
This connector is a 16550A high speed communication port that sends/receives 16 bytes
FIFOs. You can attach a serial device.
Figure 18: Serial Port Connector
Parallel Port Header: JLPT1
This connector is used to connect an optional parallel port bracket. The parallel port is a
standard printer port that supports Enhanced Parallel Port (EPP) and Extended
Capabilities Parallel Port (ECP) mode.
Figure 19: Parallel Port Header
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Overclock FSB Switch: OC_SW1
You can overclock the FSB to increase the processor frequency by changing the switch.
Follow the instructions below to set the FSB.
Figure 20: Overclock FSB Switch
Make sure that you power off the system before setting the switch
When overclocking the system may become instable or crash during boot, please set
the switch to default setting.
PCI Express Slot
The PCI Express slot supports the PCI Express interface expansion card. The PCI
Express x16 slot supports up 4.0 GB/s transfer rate and the PCI Express x1 slot supports
up to 250 MB/s
Figure 21: PCI Express Slots
PCI Slot
The PCI slot supports LAN card, SCSI card, USB card, and other add-on cards that
comply with PCI specifications.
Figure 22: PCI Slot
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Upgrading the CPU
Allow time for the processor and heat sink to cool before touching either of them.
All Intel processors together with Level 2 cache chips are housed in a protective
The design of the Vig625M computer makes it a simple job to replace or upgrade the
processor. To do so please refer to the follow the instructions below:
Read the warnings at the start of this chapter and ensure a static free environment
Remove the lid from the computer by removing the four screws at the rear of the case
Locate the CPU module.
Locate the heat sink clips, and remove heat sink (and unplug FAN cable)
Lift arm on Socket to release the CPU
Lift the CPU Vertically upwards until it is clear of the socket
You can now fit the replacement CPU and heat sink into the socket.
Figure 23: LGA 775 CPU
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Installing the CPU
1. The CPU socket has a plastic cap on it to protect the contact from damage. Before
you install the CPU, always cover it to protect the socket pin. Remove the cap from
lever hinge side (as the arrow shows).
Figure 24: Remove protective cap
2. The pin sockets are revealed, now open the load lever.
Figure 25: Open load lever
3. Lift the load lever up and open the load plate. After confirming the CPU direction for
correct mating, put down the CPU in the socket housing frame. Be sure to grasp on
the edge of the CPU base. Note that the alignment keys are matched.
Figure 26: Place CPU in the socket housing
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4. Visually inspect if the CPU is seated well into the socket. If not, take out the CPU with
pure vertical motion and reinstall. Cover the load plate onto the package.
Figure 27: Cover the load plate
5. Press down the load lever lightly onto the load plate, and then secure the lever with
the hook under retention tab. Align the holes on the motherboard with the heatsink.
Push down the cooler until its four clips get wedged into the holes of the
Figure 28: Install heatsink
6. Press the four hooks down to fasten the cooler. Then rotate the locking switch (refer
to the correct direction marked on it) to lock the hooks. Turn over the motherboard to
confirm that the clip-ends are correctly inserted.
Figure 29: Install heatsink 2
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Installing & Removing Memory Modules
 Installing Memory
You can install from 512MB to 4GB of memory in the motherboard DIMM sockets. The
motherboard has two DIMM sockets. The motherboard supports the following memory
Two DDR3 DIMMs with gold-plated contacts.
Non-ECC (64-bit) memory.
512MB, 1GB, 2GB and 4GB modules.
Memory Speeds 800MHz, 1066MHz and 1333MHz (Overclocked)
To install DIMMs, follow these steps:
1. Observe the precautions in “Before You Begin”. Turn off the computer and all
Peripheral devices.
2. Remove the computer cover and locate the DIMM sockets.
3. Holding the DIMM by the edges, remove it from its antistatic package.
4. Make sure the clips at either end of the socket are pushed away from the socket.
5. Position the DIMM above the socket. Align the two small notches in the bottom edge
of the DIMM with the keys in the socket. Insert the bottom edge of the DIMM into the
6. When the DIMM is seated, push down on the top edge of the DIMM until the
retaining clips at the ends of the socket snap into place. Make sure the clips are
firmly in place.
7. Replace the computer cover.
Figure 30: Memory Installation
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Removing Memory
To remove a DIMM, follow these steps:
Observe the precautions in "Before You Begin”.
Turn off all peripheral devices connected to the computer. Turn off the computer.
Remove the computer cover.
Gently spread the retaining clips at each end of the socket. The DIMM pops out of
the socket. Hold the DIMM by the edges, lift it away from the socket, and store it in an
antistatic package.
5. Reinstall and reconnect any parts you removed or disconnected to reach the DIMM
Figure 31: Removing Memory Modules
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Replacing the Clock/CMOS RAM Battery
A lithium battery is installed in a socket on the system board.
The battery has an estimated life expectancy of seven years. When the battery starts to
weaken, it loses voltage; when the voltage drops below a certain level, the system
settings stored in CMOS RAM (for example, the date and time) may be wrong.
If the battery fails, you will need to replace it with a CR2032 battery or an equivalent. As
long as local ordinance permits, you may dispose of individual batteries as normal
rubbish. Do not expose batteries to excessive heat or any naked flame. Keep all
batteries away from children.
Danger of explosion if the battery is incorrectly replaced. Replace only with the same or
equivalent type recommended by Viglen.
Discard used batteries according to
manufacturer’s instructions.
To replace the battery, carry out the following:
Observe the precautions in “Before You Begin.”
Turn off all peripheral devices connected to the system.
Turn off the system.
Remove any components that are blocking access to the battery.
Figure 1 shows the battery location. Gently pry the battery free from its socket, taking
care to note the "+" and "-" orientation of the battery (Figure 27).
6. Install the new battery in the socket.
Figure 32: Removing the Battery
Vig625M Motherboard Manual
Chapter 3: Solving Problems
The first part of this chapter helps you identify and solve problems that might occur when
the system is in use. The second part lists error code messages that might be displayed.
Please remember that if you cannot solve the problem by yourself then you should
contact your suppliers Technical Support for further assistance.
Viglen Technical Support can be reached in the following ways:
Telephone: 020 8758 7000
020 8758 7080
You can also look for support information on our web site:
Device drivers and various useful utilities can be downloaded from our ftp site:
Resetting the System
Before checking your system for hardware problems, it is always a good idea to try
resetting your computer and see if a re-boot can solve the problem. Most software
related problems can be solved simply by re-booting your PC.
Table 5: Resetting the System
To do the following
Soft boot: Clear the system memory and
reload the operating system (also called
warm reset).
<Ctrl + Alt + Del>
Cold boot: Clear the system memory, halt Power off/on or reset button (at front
power to all peripherals, restart POST, and of the system)
reload the operating system.
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Troubleshooting Procedures
This section provides a step-by-step troubleshooting procedure to identify a problem and
locate its source.
1. Turn off the system and any peripheral devices before you disconnect any peripheral
cables from the system. Otherwise, you can permanently damage the system or the
peripheral devices.
2. Make sure the system is plugged into a properly grounded power outlet.
3. Make sure your keyboard and video display are correctly connected to the system.
Turn on the video display, and turn up its brightness and contrast controls to at least
two-thirds of the maximum (refer to the documentation supplied with the video
4. If the operating system normally loads from the hard disk drive, make sure there is no
diskette in the diskette drive. If the operating system normally loads from a diskette,
insert the operating system diskette into the drive.
5. Turn on the system. If the power indicator does not light, but the system seems to be
operating normally, the indicator is probably defective. Monitor the power-on self test
(POST) execution. Each time you turn on the system, the POST checks the system
board, memory, keyboard, and certain peripheral devices.
NOTE: If the POST does not detect any errors, the system beeps once and boots up.
Errors that do not prevent the boot process (non-fatal errors) display a message that
looks similar to the following:
Error Message Line 1
Error Message Line 2
Press <DEL> for Set-up, <F1> to Boot
You can note the error and press <F1> to resume the boot-up process, or <DEL>
to enter Set-up.
Errors that prevent the boot process from continuing (fatal errors), are communicated by
a series of audible beeps. If this type of error occurs, refer to the error codes and
messages listed at the end of this chapter.
6. Confirm that the operating system has loaded.
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Problems Operating Add-in Boards
Problems related to add-in boards are usually related to improper board installation or
interrupt and address conflicts. Go through the checklist below to see if you can correct
the problem. If the problem persists after you have checked and corrected all of these
items, contact the board vendor's customer service representative.
Did you install the add-in board according to the manufacturer‟s instructions?
Check the documentation that came with the board. Are all cables installed properly?
The following items are suggestions for troubleshooting problems related to PCI/ISA
legacy (non-Plug and Play) add-in boards.
If the PCI/ISA board uses an interrupt, run Set-up and set the interrupt that is being
used by the PCI/ISA board to Used by PCI/ISA Card. Please refer to the BIOS
manual for details of how to do this.
If the PCI/ISA legacy board uses memory space between 80000H - 9FFFFH, run Setup and set conventional memory to 256 K.
If the PCI/ISA legacy board uses shared memory between C8000H - DFFFH, run Setup and enable shared memory for the appropriate memory space.
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Problems & Suggestions
Table 6: Problems and Suggestions
What happens
What to do
Application software
Try resetting the system.
Make sure all cables are installed correctly.
Verify that the system board jumpers are set properly.
Verify that your system hardware configuration is set correctly. In
Setup, check the values against the system settings you recorded
previously. If an error is evident (wrong type of drive specified, for
example), make the change in Setup and reboot the system. Record
your change.
Make sure the software is properly configured for the system. Refer to
the software documentation for information.
Try a different copy of the software to see if the problem is with the
copy you are using.
If other software runs correctly on the system, contact the vendor of
the software that fails.
If you check all of the above with no success, try clearing CMOS
RAM and reconfiguring the system. Make sure you have your list of
system settings available to re-enter, because clearing CMOS RAM
sets the options to their default values.
Characters onscreen are distorted
or incorrect
Make sure the brightness and contrast controls are properly adjusted
on the monitor.
Make sure the video signal cable and power cables are properly
Make sure your monitor is compatible with the video mode you have
Characters do not
appear on screen
Make sure the video display is plugged in and turned on.
Check that the brightness and contrast controls are properly adjusted.
Check that the video signal cable is properly installed.
Make sure a video board is installed, enabled, and the jumpers are
positioned correctly.
Reboot the system.
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Table 7: Problems and Suggestions (Continued)
What happens
What to do
CMOS RAM settings
are wrong
If system settings stored in CMOS RAM change for no apparent
reason (for example, the time of day develops an error), the backup
battery may no longer have enough power to maintain the settings.
Replace the battery (Chapter 2).
Diskette drive light
does not go on when
drive is in use or is
tested by POST
Make sure the power and signal cables for the drive are properly
Hard drive light does
not go on when drive
is in use or is tested
Make sure the power and signal cables for the drive are properly
Check that the drive is properly configured and enabled in Setup.
Make sure the front panel connector is securely attached to the
system board headers.
Check that the drive is properly configured and enabled in Setup.
Check the drive manufacturer's manual for proper configuration for
remote hard disk drive activity.
Power-on light does
not go on
If the system is operating normally, check the connector between the
system board and the front panel. If OK, the light may be defective.
Prompt doesn't
appear after system
It‟s probably switched off.
Setup, can't enter
If you can't enter Setup to make changes, check the switch that
disables entry into Setup (Chapter 2). If the switch is set to allow
entry into Setup, you might need to clear CMOS RAM to the default
values and reconfigure the system in Setup.
System halts before
completing POST
This indicates a fatal system error that requires immediate service
attention. Note the screen display and write down any beep code
emitted. Provide this information to your dealer service department /
Technical Support.
A serious fault may have occurred consult your dealer service
department / Technical Support.
Vig625M Motherboard Manual
Chapter 4: System BIOS
What is the BIOS?
The BIOS (Basic Input Output System) is an important piece of software which is stored
in a ROM (Read Only Memory) chip inside the computer. It consists of the basic
instructions for controlling the disk drives, hard disk, keyboard and serial/parallel ports.
The BIOS also keeps a list of the specifications of the computer in battery-backed RAM
(also known as the CMOS RAM) and provides a special Setup program to change this
The BIOS in your Viglen computer is guaranteed to be fully compatible with the IBM
BIOS. It has been written by Phoenix Award BIOS, an industrial leader in the field of
BIOS software.
The Power-On sequence
When the computer is first switched on, certain instructions in the BIOS are executed to
test various parts of the machine. This is known as the POST (Power-On Self Test)
routine. When you switch the computer on (or when you press the Reset button or press
<Ctrl> + <Alt>+ <Delete> keys, which has the same effect), you can see on the monitor
that it counts through the memory, testing it. The floppy disk drives are then accessed
and tested, and the various interfaces are checked. If there are any errors, a message is
displayed on the screen.
Having passed all the tests, and if you have activated the password facility, the BIOS
then asks you to enter the boot password to continue. The following section describes
how to do this. The BIOS then loads the operating system, either - MS DOS, Windows
98SE, OS/2 or NetWare, etc. - from the hard disk (or floppy disk if one is inserted in Drive
A: The computer is then ready for use.
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Phoenix Award BIOS
The motherboard uses a Phoenix BIOS, which is stored in flash memory and can be
upgraded using a disk-based program. In addition to the BIOS, the flash memory
contains the Setup program, Power-On Self Test (POST), Advanced Power Management
(APM), the PCI auto-configuration utility, and is Windows 95-ready Plug and Play. This
motherboard supports system BIOS shadowing, allowing the BIOS to execute from 64-bit
onboard write-protected DRAM.
The BIOS displays a message during POST identifying the type of BIOS and the revision
BIOS Upgrades
A new version of the BIOS can be upgraded from a diskette using the AFUDOS.EXE
utility that is available from the Viglen FTP site. This utility does BIOS upgrades as
Updates the flash BIOS from a file on a disk.
Updates the language section of the BIOS.
Makes sure that the upgrade BIOS matches the target system to prevent
accidentally installing a BIOS for a different type of system.
BIOS upgrades and the AFUD4310.EXE utility may be available online at or by request.
NOTE: Please review the instructions distributed with the upgrade utility before
attempting a BIOS upgrade.
Using AWDFLASH to update the BIOS
The BIOS can be updated using the AFUD4310.EXE utility in DOS environment.
Copy the AFUD4310.EXE utility to the bootable floppy disk that contains the BIOS
Boot the system from the floppy disk.
At the DOS prompt, type the command line:
AFUD4310 filename.rom
Where “filename.rom” means the latest (or original) BIOS file that you copied to the
bootable floppy disk.
The whole process is automated and needs no input from the user.
DO NOT shutdown or reset the system while updating the BIOS! Doing so may
cause system boot failure!
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When the BIOS update process is complete, the utility reboots the system.
Once the system has been restarted it will hold on the Pre-BIOS screen. At this stage the
following need to be completed before starting windows.
1. The system will halt on pre-BIOS, at this point you need to shut the machine
2. Reboot the computer.
3. System will holt on the pre-BIOS screen and display an error message (CMOS
checksum error – Defaults loaded)
4. Enter the BIOS setup by pressing DEL
5. Once in the setup load the optimized settings by selecting „Load Optimized
6. Exit the setup by selecting „Save & Exit setup‟.
7. Now boot in to windows.
When you reboot the system it will hold on the Pre-BIOS screen. At this stage there will
be an error message shown and details of the current BIOS. Check the BIOS version.
The BIOS version is made up of the BIOS file name, version, build and time of flash E.g.
A7528IMS V1.0 011708 where:
1st digit refers to BIOS maker as A = AMI, W = AWARD, and P = PHOENIX.
2nd - 5th digit refers to the model number.
6th digit refers to the chipset as I = Intel, N = nVidia, and V = VIA.
7th - 8th digit refers to the customer as MS = all standard customers.
V1.0 refers to the BIOS version.
011708 refers to the date this BIOS was released.
Power on the computer and the system will start POST (Power On Self Test) process.
When the message below appears on the screen, press <DEL> key to enter Setup.
Press DEL to enter SETUP
If the message disappears before you respond and you still wish to enter Setup, restart
the system by turning it OFF and On or pressing the RESET button. You may also restart
the system by simultaneously pressing <Ctrl>, <Alt>, and <Delete> keys.
This requires the user to choose one of two options. Either F1 to continue with the default
BIOS settings loaded or DEL to enter the BIOS setup.
Enter the BIOS setup and select „load optimized default‟. Then select „Save & Exit setup‟.
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Configuring the Motherboard using BIOS Setup
Before You Begin
Always follow the steps in each procedure in the correct order.
Set up a log to record information about your computer, such as model, serial
numbers, installed options, and configuration information.
Use an anti-static wrist strap and a conductive foam pad when working on the
The procedures in this chapter assume familiarity with the general terminology
associated with personal computers and with the safety practices and regulatory
compliance required for using and modifying electronic equipment.
Disconnect the computer from its power source and from any telecommunications links,
networks, or modems before performing any of the procedures described in this chapter.
Failure to disconnect power, telecommunications links, networks, or modems before you
open the computer or perform any procedures can result in personal injury or equipment
damage. Some circuitry on the motherboard may continue to operate even though the
front panel power button is off.
Electrostatic discharge (ESD) can damage components. Perform the procedures
described in this chapter only at an ESD workstation. If such a station is not available,
you can provide some ESD protection by wearing an anti-static wrist strap and attaching
it to a metal part of the computer chassis.
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BIOS Setup Program
This motherboard supports a programmable firmware hub (FWH) that you can update
using the provided utility described in section “2.1 Managing and updating your BIOS.”
Use the BIOS Setup program when you are installing a motherboard, reconfiguring your
system, or prompted to “Run Setup”. This section explains how to configure your system
using this utility.
Even if you are not prompted to use the Setup program, you may want to change the
configuration of your computer in the future. For example, you may want to enable the
security password feature or change the power management settings. This requires you
to reconfigure your system using the BIOS Setup program so that the computer can
recognise these changes and record them in the CMOS RAM of the firmware hub.
The firmware hub on the motherboard stores the Setup utility. When you start up the
computer, the system provides you with the opportunity to run this program. Press
<Delete> during the Power-On Self Test (POST) to enter the Setup utility. Otherwise,
POST continues with its test routines.
If you wish to enter Setup after POST, restart the system by pressing <Ctrl> + <Alt> +
<Delete>, or by pressing the reset button on the system chassis. You can also restart by
turning the system off and then back on. Do this last option only if the first two failed.
The Setup program is designed to make it as easy to use as possible. It is a menu driven
program, which means you can scroll through the various sub-menus and make your
selections from the available options using the navigation keys.
NOTE: If the system becomes unstable after changing any BIOS settings, load the
default settings to ensure system stability. Select the Load Default Settings item under
the Exit Menu.
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Main Menu Items
The Main menu is the first screen you are presented with on entering the BIOS setup.
Figure 34: Main Menu
Sub Menu Items: An item with a sub-menu on any menu screen is distinguished by a
solid triangle before the item. To display the sub-menu, select the item and press Enter.
Configuration Fields: These fields show the values for the menu items. If an item is
user-configurable, you may change the value of the field opposite the item. You cannot
select an item that is not user-configurable.
A configurable field is enclosed in brackets, and is highlighted when selected. To change
the value of a field, select it then press Enter to display a list of options.
Pop Up Window: Select a menu item then press Enter to display a pop-up window
with the configuration options for that item.
Scroll Bar: A scroll bar appears on the right side of a menu screen when there are
items that do not fit on the screen. Press left/right or Up/Down arrow keys or
PageUp/PageDown keys to display the other items on the screen.
General Help: To view general help press F1. This displays help information on the
particular option you are in.
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Main BIOS Menu Screen
Figure 35: BIOS Menu Screen
Standard CMOS Features
Use this menu for basic system configurations, such as time, date etc.
Advanced BIO S Features
Use this menu to setup the items of special enhanced features.
Integrated Peripherals
Use this menu to specify your settings for integrated peripherals.
Power Management Setup
Use this menu to specify your settings for power management.
H/W Monitor
This entry shows the status of your CPU, fan, warning for overall system status.
BIOS Setting Password
Use this menu to set BIO S setting Password.
Cell Menu
Use this menu to specify your settings for frequency/voltage control.
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Load Fail-Safe Defaults
Use this menu to load the BIO S default values that are factory settings for system
Load Optimized Defaults
Use this menu to load factory default settings into the BIO S for stable system
performance operations.
Save & Exit Setup
Save changes to CMOS and exit setup.
Exit Without Saving
Abandon all changes and exit setup.
Cell Menu
Figure 36: Cell Menu Screen
Current CPU/DRAM Frequency
It shows the current frequency of CPU/Memory. Read-only.
Intel EIST
The Enhanced Intel SpeedStep technology allows you to set the performance level of
the microprocessor whether the computer is running on battery or AC power. This
field will appear after you installed the CPU which supports SpeedStep technology.
Vig625M Motherboard Manual
Adjust CPU FSB Frequency (MHz)
This item allows you to adjust the CPU FSB frequency.
Adjusted CPU Frequency (MHz)
It shows the adjusted CPU frequency (FSB x Ratio). Read-only.
Advance DRAM Configuration
Press <Enter> to enter the sub-menu.
 DRAM Timing Mode
Selects whether DRAM timing is controlled by the SPD (Serial Presence Detect)
EEPROM on the DRAM module. Setting to [Auto By SPD] enables DRAM timings
and the following related items to be determined by BIO S based on the
configurations on the SPD. Selecting [Manual] allows users to configure the
DRAM timings and the following related items manually.
 CAS Latency (CL)
When the DRAM Timing Mode sets to [Manual], the field is adjustable. This
controls the CAS latency, which determines the timing delay (in clock cycles)
before SDRAM starts a read command after receiving it.
 tRCD
When the DRAM Timing Mode sets to [Manual], the field is adjustable. When
DRAM is refreshed, both rows and columns are addressed separately. This setup
item allows you to determine the timing of the transition from RAS (row address
strobe) to CAS (column address strobe). The less the clock cycles, the faster the
DRAM performance.
 tRP
When the DRAM Timing Mode sets to [Manual], the field is adjustable. This item
controls the number of cycles for Row Address Strobe (RAS) to be allowed to
precharge. If insufficient time is allowed for the RAS to accumulate its charge
before DRAM refresh, refreshing may be incomplete and DRAM may fail to retain
data. This item applies only when synchronous DRAM is installed in the system.
 tRAS
When the DRAM Timing Mode sets to [Manual], the field is adjustable. This setting
determines the time RAS takes to read from and write to a memory cell.
 tRTP
When the DRAM Timing Mode sets to [Manual], the field is adjustable. Time
interval between a read and a precharge command.
 tRFC
When the DRAM Timing Mode sets to [Manual], the field is adjustable. This setting
determines the time RFC takes to read from and write to a memory cell.
 tWR
When the DRAM Timing Mode is set to [Manual], the field is adjustable. It
specifies the amount of delay (in clock cycles) that must elapse after the
completion of a valid write operation, before an active bank can be precharged.
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This delay is required to guarantee that data in the write buffers can be written to
the memory cells before precharge occurs.
 tRRD
When the DRAM Timing Mode sets to [Manual], the field is adjustable. Specifies
the active-to-active delay of different banks.
 tWTR
When the DRAM Timing Mode is set to [Manual], the field is adjustable. This item
controls the Write Data In to Read Command Delay memory timing. This
constitutes the minimum number of clock cycles that must occur between the last
valid write operation and the next read command to the same internal bank of the
DD R device.
This item will allow you to adjust the ratio of FSB to memory.
Adjusted DRAM Frequency (MHz)
It shows the adjusted memory frequency. Read-only.
Adjust PCI-E Frequency (MHz)
This item allows you to adjust the PCI-E frequency.
Auto Disable DRAM/PCI Frequency
When set to [Enabled], the system will remove (turn off) clocks from empty DIMM and
PCI slots to minimize the electromagnetic interference (EMI).
Spread Spectrum
When the motherboard‟s clock generator pulses, the extreme values (spikes) of the
pulses create EMI (Electromagnetic Interference). The Spread Spectrum function
reduces the EMI generated by modulating the pulses so that the spikes of the pulses
are reduced to flatter curves. If you do not have any EMI problem, leave the setting at
Disabled for optimal system stability and performance. But if you are plagued by EMI,
set to Enabled for EMI reduction. Remember to disable Spread Spectrum if you are
overclocking because even a slight jitter can introduce a temporary boost in clock
speed which may just cause your overclocked processor to lock up.
If you do not have any EMI problem, leave the setting at [Disabled] for optimal system
stability and performance. But if you are plagued by EMI, select the value of Spread
Spectrum for EMI reduction.
The greater the Spread Spectrum value is, the greater the EMI is reduced, and the
system will become less stable. For the most suitable Spread Spectrum value, please
consult your local EMI regulation.
Remember to disable Spread Spectrum if you are overclocking because even a slight
jitter can introduce a temporary boost in clock speed which may just cause your
overclocked processor to lock up.
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Load Optimized Defaults
You can load the default values provided by the motherboard manufacturer for the stable
Figure 37: Load Optimal Defaults
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Chapter 5: Technical Information
NOTE: This chapter is indented for experienced users only, and only to be used as a
reference. Changes to or modify any of the components/ connectors listed herein can
and will seriously damage your system, including the motherboard, CPU and/or any other
You do not need to read this chapter to configure your motherboard. If you are not sure
about the details listed herein, please skip and disregard them.
Enhanced IDE
IDE has been used in computer systems for some time, and has been a cheap solution
to data storage. It has now been realised that traditional IDE has its limitations and thus
needed to be improved. This was where Enhanced IDE came from. The main
developments to the IDE interface are:
 Support hard drives of capacity greater than 528MB. This is achieved through BIOS
 Improved data transfer rates. Transfer rates of 1-3MB/sec were the best to be
expected from older IDE drives. With local bus technology this increased to about
6MB/sec. Now with multimedia applications, requiring vast amounts of information,
even faster transfers rates were needed. Now drives with Enhanced IDE controllers
can deliver up to 13MB/sec which is in the region of SCSI-2 performance.
 Dual-IDE channels have now been added which allows up to four IDE drives to be
supported by the system. Each channel supporting two IDE devices.
Non disk IDE peripherals have been developed (IDE CD-ROMs, IDE tape streamers)
which can be simply attached to the one channel requiring no special hardware
(requiring the use of an ISA slot) or complicated drivers. This is a standard interface
meaning that any IDE CD-ROM or tape streamer can be attached.
Operating Systems and Hard Drives
Standard CHS is the translation that has been used for years. Its use limits IDE capacity
to maximum of 528MB regardless of the size of the drive used.
Logical Block mode overcomes the 528MB maximum size limitation imposed by the
Standard CHS mode. It should be used only when the drive supports LBA (Logical Block
Addressing), and the OS supports LBA, or uses the BIOS to access the disk.
Extended CHS mode also overcomes the 528MB maximum size limitation imposed by
Standard CHS mode. It can be used with drives which are larger than 528MB that do not
support LBA.
Auto Detected allows the BIOS to examine the drive and determine the optimal mode.
The first choice is to utilise Logical Block mode if it is supported by the drive. The second
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choice is to utilise Extended CHS mode if the drive topology allows. If neither of the
above methods is possible, the Standard CHS mode is used.
Different operating systems have different abilities regarding IDE translation mode.
UNIX operating systems (as currently implemented) do not support either LBA or ECHS
and must utilise the standard CHS method. UNIX can support drives larger than 528MB,
but does so in its own way.
OS/2 2.1 and OS/2 Warp can support LBA, ECHS or standard CHS methods. Note that
LBA support may require a switch setting on an OS/2 driver in order to operate in that
OS/2 2.0 & Novel NetWare can support either ECHS or standard CHS methods. In order
to use LBA with NetWare a driver that supports current parameters must be used.OS/2
2.0 does not support LBA.
DOS & Windows can use LBA, ECHS or standard CHS methods. The '32-bit Disk
Access' driver built into Windows WDCTRL.386 can only be used with the standard CHS
method, To use either LBA or ECHS method and '32-bit Disk Access' an alternative .386
driver must be installed, this combination will also provide the best performance. If this
driver is not installed and the drive fitted to the system supports Type F DMA on the ISA
interface or Mode 3 on the PCI interface then higher performance will be achieved by
NOT using '32-bit Disk Access'.
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Other Information
The mean time between failures (MTBF) prediction is calculated using component and
subassembly random failure rates. The calculation is based on the Bellcore Reliability
Prediction Procedure, TR-NWT-000332, Issue 4, September 1991.
The MTBF prediction is for:
Redesigning the motherboard for alternate components if failure rates exceed
reliability expectations.
Estimating repair rates and spare parts requirements.
MTBF data is calculated from predicted data @ 55 C.
The MTBF prediction for the motherboard is 213,209 hours.
Table 21: Temperature
-40C to +70C
0C to +55C
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Chapter 6: Glossary
(Basic Input Output System) This is software stored on a chip and consists of the
instructions necessary for the computer to function. The System BIOS contains the
instructions for the keyboard, disk drives etc., and the VGA BIOS controls the VGA
graphics card.
Central Processing Unit. This is the main piece of equipment on the motherboard. The
CPU processes data, tells memory what to store and the video card what to display.
The configuration of the system when it is switched on or the standard settings before
any changes are made.
Dual In-Line Memory Module, a type of memory module used for the systems main
A piece of software which is used by application software to control some special
features. Each graphics board and printer requires its own driver.
A common type of connector used for connecting printers, serial ports, game port, and
many other types of interface.
Dynamic Ram used for main system memory, providing a moderately fast but cheap
storage solution.
Floppy Disk Controller - the interface for connecting floppy disk drives to the computer.
A monochrome graphics video mode which first appeared in the Hercules graphics card.
Provides a resolution of 720 by 348 pixels.
Integrated Drive Electronics - currently the most popular type of interface for hard disk
drives. Much of the circuitry previously required on hard disk controller cards is now
integrated on the hard disk itself.
The electronics providing a connection between two pieces of equipment. For example, a
printer interface connects a computer to a printer.
The mode the graphics card uses to refresh a monitor screen. When the graphics is in
interlace mode, the frequency of the display update is lower than in non-interlace mode.
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This causes a slight flicker, so generally non-interlaced mode is better if the monitor
supports it.
Light Emitting Diode - a light which indicates activity - for example hard disk access.
Peripheral Component Interface. It became apparent to manufacturers that the 8MHz AT
ISA BUS on the standard PC was just not fast enough for today's applications, and so
PCI was invented. It is a high speed data bus that carries information to and from
components - known as 'Local Bus'.
Random Access Memory - the memory used by the computer for running programs and
storing data.
Read Only Memory - a memory chip which doesn't lose its data when the system is
switched off. It is used to store the System BIOS and VGA BIOS instructions. It is slower
than RAM.
Shadow Memory
The BIOS is normally stored in ROM. On certain systems it can be copied to RAM on
power up to make it go faster. This RAM is known as shadow memory. The System
BIOS is responsible for this copying.
Super VGA
Additional screen modes and capabilities provided over and above the standard VGA
defined by IBM.
Video Graphics Array - the graphics standard defined by IBM and provided on IBM's
PS/2 machines.
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Chapter 7: Suggestions
Viglen is interested in continuing to improve the quality and information provided in their
manuals. Viglen has listed some questions that you may like to answer and return to
Viglen. This will help Viglen help to keep and improve the standard of their manuals.
1. Is the information provided in this and other manuals clear enough?
2. What could be added to the manual to improve it?
3. Does the manual go into enough detail?
4. Would you like an on-line version of this manual?
5. How do you rate the Viglen Technical support and Service Departments?
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6. Are there any technological improvements that could be made to the system?
7. Other points you would like to mention?
Please return this slip to:
Product Development Dept.
Viglen Ltd.
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