ECS SF2/661FX User Manual Viglen

Vig535b Motherboard Manual

C O M P U T E R S N E T W O R K S S O L U T I O N S

Viglen, EMC and the ‘CE’ mark

CE Marking

Europ ean stan dards ar e being ha rmonise d acros s border s. If pr oducts c omply wit h the same standar ds in all European countries, product expor ting and importing is made simple - paving our way to a common market. If you buy a product with a 'CE' mark on it (s hown below), on the box, in the man ual, 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 desi gned so t hey do n ot i nterfer e with each ot her through RF emi ssions. E.g. If you turn on your micr owave, your television should n't display interference i f both items are CE mark ed to the EMC directive.

If emitted RF energy is not k ept low, it can interfer e with other electr ical 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 pr oduc t c onf orm s t o the EM C di rec ti ve, not onl y s houl d i ts R F em is si ons be ver y l ow, but it s i mmun it y to R F energy (and other types) should be high. The apparatus has t o resist many 'real world' phenomena s uch as static shocks and mains voltage transients.

Viglen’s En vi ro nm en t lab ora t o r y

To gain a 'CE' mark, the Viglen computer range has had to undergo many difficult tests to ensure it is Electromagnetically Compatible. These are carr ied out in the in-house 'Envir onment lab' at Viglen Headquar ters. We have made every effort to guarantee that each computer leaving our factory complies fully with the correct standards. To ensure the computer system m aintains compliance throughout it s functional lif e, it is essential you follow these guidelines.

 Install the system according to Viglen’s instructions  If you open up your Viglen:

This system has been test ed in accordance with European st andards for use in residential and li ght industrial areas-this specifies a 10 m eter testing radius for emissions and imm unity. If you do experience any adv erse affects which you think might be related to your computer , try moving it at leas t 10 meters away from the affect ed 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 t am pered with or modified.

 Keep internal cabling in place as supplied.  Ensur e the lid is tigh tly secured afterw ards  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 conductivi t y - 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

Vig535b Motherboard Manual

Copyrights and Trademarks

Please note

The material in this manual is subject to change without notice.

Trademarks

Microsoft, Windows, Windows NT, Windows 95,Windows 98, Windows ME, Windows 2000 Pro, Windows XP Pro 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. AMI BI OS is a registered trademark of American Megatrends. All other trademarks are acknowledged. JAC-UP, Genie, Contender, Dossier, Vig, Viglen, and Envy are trademarks of Viglen Limited.

This manual and all accompanying software and documentati on are copyrighted and all rights reserved. This product, including software and documentation, ma y not, in whole or in part, be copied, photocopied, translated or reduced to any electronic or machine-readable form, without prior written consent except for copies retained by the purchaser for backup.

Liability

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 documentati on is licensed as is, and you, the licensee, are assuming the entire risk as to its quality and performance. The vend or reserves the right to revise this operation manual and all accompanying software and documentation and to m ake changes in the content with out 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 hardwar e, software or data store d or used with the product, including the costs of re pairing, replacing or recovering such hardware, software or data.

Vig535b Motherboard Manual

Contents

Chapter 1: Motherboard Overview 5

Introduction 5 Feature Summary 6 System Board Components 15 Overview of System Board Components 16 Back Panel Connectors 20

Chapter 2: System Board Options 22

Overview of Jumper Settings 24 System Board Jumper Settings 25 Motherboard Connectors 27 Front Panel Connectors 28 Upgrading the CPU 29 Installing & Removing Memory Modules 30 Expansion Slots (PCI & AGP) 31 Replacing the Clock/CMOS RAM Battery 33

Chapter 3: Solving Problems 34

Resetting the System 34 Troubleshooting Procedures 35 Problems Operating Add-in Boards 36 Problems & Suggestions 37

Chapter 4: System BIOS 39

What is the BIOS? 39

The Power-On Sequence 39 Phoenix BIOS – Introduction 40 BIOS Upgrades 40 Using AWDFALSH to Update the BIOS 40 Conf iguring the Motherboard using BIOS Setup 42 BIOS Setup Program 43 BIOS Menu Screen 44 Main Menu 45

Vig535b Motherboard Manual

Main Menu items 45

Standard CMOS Features 46 Advanced BIOS Features 49 Advanced Chipset Features 51 DRAM Timing Control 51 AGP & P2P Bridge Control 52 OnChip AGP Control 53 VGA Share Memory Size 53 Integrated Peripherals 54 OnChip IDE Device 54 OnChip PCI Device 55 Onboard Super I/O Device 56 Onboard PCI Device 57 Power Management Setup 58 PM Wakeup Events 59 PnP/PCI Configurations 60 IRQ Resources 60 PC Health Status 62 Frequency/Voltage Control 63 Main Menu Additional Options 64

Chapter 5: Technical Information 65

Enhanced IDE 65

Operating Systems and Hard Drives 65 Power Supply Connector 67 Other Useful Connectors 67 Other Information 71

Reliability 71 Temperature 71

Chapter 6: Glossary 72

Notes 74

Chapter 7: Suggestions 75

Vig535b Motherboard Manual

Chapter 1: Motherboard Overview

Introduction

This manual describes the Vigl en VIG535B motherbo ard inside your c omputer. The motherboard is the most important part of your c omputer. It cont ains all of the CPU, memory and graphics circuitry that make the computer work.

The motherboard contains the very latest CPU design that supports the Intel® Pentium® 4 family including Hyper-Threading enabled CPU’s and the very latest Extreme Edition CPU’s. All of the supported CPU’s include Intel’s® MMX Technology. MMX technology adds a total of 57 new instructions to the CPU, all of which are designed to vastly improve both m ultimedia and communications on your PC. The combination of the Intel® processor, MMX technolog y and Viglen expertise make this a formidable computer.

This manual contains technical inform ation about the Viglen VIG535B motherboard and other hardware components i nside 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.

Vig535b Motherboard Manual

Feature Summa ry

The Vig535b motherboard supports Intel® Pentium® 4 and Celeron® processors with up to 1MB of second-level cache integrated in a micro PGA 478 Socket package operating at speeds up to 3.4GHz.

The motherboard features:

Form factor:

• Micro ATX Form Factor: 243mm by 230mm

Processor:

• Single Pentium 4 CPU

• 400/533/800MHz Quad-pumped bus

• Integrated 128, 256, 512 and 1000KB second-level cache

• Socket 478 connector.

Main memory:

• Four 184-pin DDR DIMM sockets.

• Support for up to 2GB of DDR DIMM memory.

Chipset

• SiS 661FX

• 800Hz Front Side Bus (FSB)

• AGP 8x

• Support for 266/333/400MHz DDR RAM

• Advanced System Power Management features

• Integrated Super I/O Controller

• DirectSound AC97 Audio

• Dual bus master IDE Ultra DMA33/66/100/133

Audio Audio Codec ’97 (AC ’97) compatible audio subsystem

LAN

Realtek 10/100 Mbit/sec Platform LAN Connect (PLC) device

Vig535b Motherboard Manual

Peripheral Interfaces

• Support for two Universal Serial Bus (USB) ports

• One serial port

• One parallel port

• Two IDE interfaces with Ultra DMA 33, ATA66/100/133 support.

• One diskette drive interface

• PS/2 keyboard and mouse ports

Expansion Capabilities

• Three PCI bus add-in card connectors

• One AGP Pro connector

Instantly Available PC

• Support for PCI Local Bus Specification Revision 2.2

• Suspend to RAM support

• Wake on PS/2 keyboard and USB ports

Wake on LAN Technology Connector

• Support for system wake up using an add-in network interface card with remote wake up capability

Microprocessor

The motherboard supports a single Pentium 4 processor with HT technology. The processor’s VID pins automatically program the voltage regulator on the motherboard to the required processor voltage. In addition, the front side bus speed is automatically selected. The motherboard currently supports processors that run internally up to 3.4GHz and have a 128KB, 512KB or 1MB second-level cache running at full CPU Speed.

The processor implements MMX ™ technology and maintains full backward compatibility with the 8086, 80286, Intel386 ™, Intel486 ™, Pentium, Pentium Pro, Pentium II & Pentium III processors. The processor’s numeric coprocessor significantly increases the speed of floating-point operations and complies with ANSI/IEEE standard 754-1985.

Microprocessor Packaging

The Pentium 4 processor comes in a FC-PGA package that connects to the motherboard through a socket 478 connector. The package consists of:

• Processor card including the processor core and the second-level cache, burst pipelined synchronous static RAM (BSRAM) and tag RAM.

• Thermal plate.

Vig535b Motherboard Manual

• Back cover.

Second Level Cache

The second-level cache is located on the die of the CPU itself. The cache includes burst pipelined synchronous static RAM (BSRAM) and tag RAM. All supported onboard memory can be cached.

Proce s sor Upgr ades

The motherboard can be upgraded with a Pentium 4 processor that runs at higher speeds.

Memory

Main Memory

The motherboard has two DDR DIMM sockets. Minimum memory size is 128MB; maximum memory size is 2GB. The BIOS automatically detects memory type, size, and speed.

The motherboard supports the following memory features:

• 184-pin DIMMs.

• 266/333/400Mhz

• Un-Buffered Non-ECC DIMM.

RDRAM

Synchronous DRAM (SDRAM) improves memory performance through memory access that is synchronous with the memory clock. This simplifies the timing design and increases memory speed because all timing is dependent on the number of memory clock cycles.

Chipset

The SiS 661FX chipset is the latest generation of desktop PCI set, it includes new features such as –

• 8x AGP Support

• ATA-133 IDE Hard drive support

• 800MHz Front Size Bus support

• ACPI & On-Now

Vig535b Motherboard Manual

Accelerated Graphics Port (AGP)

The Vig535b features both integrated graphics and an AGP port. When using the integrated graphics then a dynamic portion of the main system memory is used as video memory. There is an optional GPA (Graphics Performance Accelerator) modules which has a dedicated 4MB of video memory. You can also use any AGP video card, with 4x/8x AGP performance. The Accelerated Graphics Port (AGP) is a high-performance interconnect for graphic-intensive applications, such as 3D applications. AGP is independent of the PCI bus and is intended for exclusive use with graphical-display devices. AGP overcomes certain limitations of the PCI bus related to handling a large amount of graphics data with the following performance features:

• Pipelined-memory read and write operations that hide memory access latency.

• Demultiplexing of address and data on the bus for near 100 percent bus efficiency.

• AC timing for 133 MHz data transfer rates, allowing data throughput of 500 MB/sec.

Realtek 8100C Platform LAN Connect Device

The Realtek 8100C component provides an interface to the back panel RJ-45 connector with integrated LEDs. This physical interface may alternately be provided via the CNR connector. The Realtek 8100C provides the following functions:

• Basic 10/100 Ethernet LAN Connectivity

• Supports RJ-45 connector with status indicator LEDs

• Full driver compatibility

• Advanced Power Management support

• Programmable transit threshold

• Configuration EEPROM that contains the MAC address

Vig535b Motherboard Manual

RJ-45 LAN Co nn e ctor 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

LED Colour LED State Condition

Green Off 10 Mbit/sec data rate is

selected.

Green On 100 Mbit/sec date rate is

selected.

Yellow Off LAN link is not

established. Yellow On (steady state) LAN link is established. Yellow On (brighter and pulsing) The computer is

communicating with

another computer on

the LAN.

Universal Serial Bus (USB)

The motherboard has four USB ports; one USB peripheral can be connected to each port. For more than four 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 applications.

• 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) 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 two independent bus-masterin g PCI IDE interfaces. These interfaces support PIO Mode 3, PIO Mode 4, ATAPI devices (e.g., CD-ROM), Ultra DMA/33, Ultra DMA/66, Ultra DMA/100 & Ultra DMA/133 synchronous-DMA mode

Vig535b Motherboard Manual

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 Vig535b 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 cable).

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 multicentury 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 estima ted lif e of three y e ars. Wh en t he c omput er is p lugge d in , t he 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.

Vig535b Motherboard Manual

I/O Interface Co ntroller

The motherboard uses the SMC FDC37C777 I/O controller which features:

• Serial ports:  Internal send/receive 16-byte FIFO buffer.  Four internal 8-bit DMA options for the UART with SIR support (USI).

• Multim ode bidi rectio n a l parallel port :  Standard mode, IBM and Centronics compatible.  Enhanced parallel port (EPP) mode with BIOS and driver support.  High-speed extended capabilities port (ECP) mode.

• Floppy disk controller:  N82077 compatible.  Single diskette drive interface.  16-byte FIFO.  High-performance digital data separator (DDS).  PC-AT and PS/2 drive-mode support.

• Keyboard and mouse controller:  Industry standard 8042A compatible.  General-purpose microcontroller.  8-bit internal data bus.

• ISA Plug-and-Play compatible register set.

• PCI PME interface.

• Intelligent auto power management:  Shadowed write-only registers for ACPI compliance.  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

Two 9-pin D-Sub serial port connector are located on the back panel and is compatible with NS16C550 UA R T s .

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).

Vig535b 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:

• 1.25/1.44 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, re-establishes 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

The Vig535b board has multiple AC ’97 V 1.03 compliant audio features including an Analog Devices ALC 655 codec.

The audio subsystem includes these features:

• Split digital/analog architecture for improved S/N (signal-to-noise) ratio: ≥ 85dB – measured at line out, from any analog input, including line in, CD-ROM, and auxiliary line in.

• 3-D stereo enhancement

• Power management support for APM 1.2 and ACPI 1.0 (driver dependant)

• Audio inputs:

o Four analog line-level stereo inputs for connection from line in, CD, video

source line in and aux

o Two analog line-level inputs for speakerphone input and PC beep o One mono microphone input

• Audio outputs:

o Stereo line-level output o Mono output for speakerphone

Vig535b Motherboard Manual

Manage ment Ex tension C omponen t

System BIOS

The system BIOS, from Phoenix Technology, provides ISA and PCI compatibility. The BIOS is contained in a flash memory device on th e system board. The BIOS provides the power-on self test (POST), the system Set-up pro gram, a PCI and IDE auto-configuration 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 b oards in the system. When you turn on the s ystem p o wer 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 add-in boards, you must specify the interrupts used b y ISA boards in the set-up program. The PCI aut o-configuration program complies with version 2.1 of the PCI BIOS specification.

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 five PCI bus add-in card connectors and One AGP universal connector.

Vig535b Motherboard Manual

System Board Components

Figure 1: Motherboard Layout & Component s

C B

Socket

PGA 478

M N

SiS 661FX

SiS

964L

S T

Super

I/O

BIOS

VWXYZAA

Table 2: Motherboard Connection

A: Audio Q: Jumper 1 B: USB and LAN R: Panel 1 C: USB S: Battery D: VGA, LPT and COM1 T: Jumper 3 E: PS/2 U: South bridge SiS 964L F: ATX 4 pin V: Front Panel USB connector G: Clock Generat or W: Front Panel USB connector H: North Bridge SiS 661FX X: Speaker I: CPU Fan Y: Case Fan 1 J: DIMM socket 1 and 2 Z: Auxiliary line audio input conn ector K: ATX 20 pin AA: Front Panel Audio L: Case Fan 2 BB: Audio Code c A LC 655 M: COM2 CC: LAN controller N: IDE1 DD: PCI slot’s O: Floppy Drive 1 EE: AGP slot P: IDE2 FF: 478 pin CPU socket

Vig535b Motherboard Manual

Overview of System Board Components

A - External Audio Socket

Situated at the rear of the motherboard, this has three 3.5mm jack sockets. The blue socket is the line in, the green socket is line out and the pink is the mic.

B – USB and LAN

This provides 2 USB ports as well as a 10/100 Ethernet port.

C – USB

This provides 2 addition USB ports.

D – LPT, Serial and a VGA ports

This allows a printer to be connected. The serial port allows a serial device to be attached such as external modem. The VGA port allows a monitor to be attached using the on board graphics hardware.

E – PS/2 keyboard and mouse

Allows a PS/2 mouse and keyboard to be attached.

F – 4-pin ATX power connector

Provides additional power to the AGP Slot

G – Clock generator

Keeps the system in sync

H – North Bridge

The SIS ® 611FX provides the processor i nterface with 800/533/400 MHz freque nc y, support for Intel ® Hyper-Threading Technology, system memory interface at 266MHz operation, and 1.5V AGP interface that supports AGP 2.0 specification including 8x Fast Write protocol.

I – CPU fan connector

Allows a CPU fan to be connected.

Vig535b Motherboard Manual

J – 2x DDR DIMM slots

This allows up to 2GB of DDR RAM to be installed. Up to 1GB of RAM in each slot.

K – 20-pin ATX power connector

This is the main power connector.

L – Power Fan Connector

This allows the power unit fan to be connected to the motherboard. (Case dependent)

M – Comm 2

Allows an additional serial port to be added. (Additional hardware required)

N – Prim ary IDE port

This allows up to 2 devices, such as CD/DVD drives and hard drives to be added to the IDE ch annel. The port is sl otted to ensure correct installation.

O – Floppy drive connector

This allows a floppy drive to be added to the motherboard. The port is slotted to ensure correct installation.

P – Secondary IDE port

This allows and additional 2 IDE d evice to be added to t he motherboar d. The port is slotted to ensure correct installation.

Q – Jumper 1 (Red)

This allows the CMOS to be cleared. Read the section regarding the BIOS and CMOS. The default position of the jumper is covering pin 1 and 2. (see figure 3)

R – Pan e l 1

This is the panel to wh ich the case cab les are c onnected, such as the po wer switch, Power LED etc..

S – Battery

The battery keeps the CMOS memory when the system isn’t turned on.

Vig535b Motherboard Manual

T – Jumper 3

This allows the BIOS to rewritable. Read the section regarding the B IOS the default position of the jumper is covering pin 1 and 2. (see figure 3)

U – South bridge

The SIS ® 964L integrated peripheral controller supports various I/O functions including 2-channel ATA/133 bus master IDE controller, up to six USB 2.0 ports, LPC Super I/O interface, AC’97 interface and PCI 2.2 interface.

V – Internal USB3 header

This allows an additional 2 USB ports to be added with the use of a cable.

W – Internal USB4 header

This allows an additional 2 USB ports to be added with the use of a cable.

X – Internal Speaker header

Allows a case speaker to be added to the motherboard.

Z – Internal Audio header

Allows the audio from the CD ROM to be run though the internal audio via an analogue cable.

AA – Front Panel Audio

Allows a front facing audio panel to be fitted.

BB – Audi o Codec

Decodes different audio formats.

CC – LAN controller

On board NIC

DD – PCI slot

Allows a PCI device to be fitted such as a fire wire card or wireless card.

Vig535b Motherboard Manual

EE – AGP slot

Allows an AGP device to be fitted such as a graphics card.

FF - 478 Intel CPU socket

This the socket in which the CPU is installed into.

Vig535b 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 extern al access to P S/2 keyboard an d mouse con nectors as well as one serial port, one parallel port, four USB ports, one LAN Port and the audio connectors.

NETWORK

SERIAL 1

PRINTER

USB

MONITOR

LINE IN

SPEAKER

MIC

Figure 2: Rear I/O Shield

Note: Power to the computer should be turned off before a keyboard or mouse is

connected or disconnected.

PS/2 Keyboard/Mouse Ports

The purple connector is for a PS/2 keyboard and the green connector is for a PS/2 mouse connector.

USB 2.0 Ports

These 4-pin Universal Serial Bus (USB) ports are available for connecting USB 2.0 devices.

Serial Port

This 9-pin COM1 port is for a pointing device or other serial devices.

Parallel Port

This 25-pin port allows connection of a parallel device e.g. Printer, scanner etc

Vig535b Motherboard Manual

Video Graphics Adapter Port

This 15-pin port is for a VGA monitor or other VGA-compatible devices.

RJ-45 Port

This port allows connection to a Local Area Network (LAN) through a network hub.

Line-In Jack

This Line In (light blue) jack connects a tape player or other audio sources. In 6channel mode, the function of this jack becomes Bass/Center.

Line-Out Jack

This Line Out (lime) jack connects a headphone or a sp eaker. In 6-channel mode, the function of this jack becomes Front Speaker Out.

Microphone Jack

This Mic (pink) jack connects a microphone. In 6-c hannel mode, the function of this jack becomes Rear Speaker Out.

Note: The functions of the Line Out, Line In, and Microphone jacks change

when you select the 6-channel audio configu rati on.

Table 3: Audio 2, 4 or 6-channel configuration

Headphone/2-Speaker 4-Speaker 6-Speaker

Light Blue Line In Rear Speaker Out Rear Speaker Out Lime Line Out Fr ont Speaker Out Front Speak er Out Pink Mic In Mic In Bass/Center

Vig535b Motherboard Manual

Chapter 2: System Board Options

The VIG535B motherboard is capable of accepting Penti um® 4 CPU’s. RAM can be upgraded to a maximum of 2GB using DDR266, DDR333, DDR400 SDRAM DIMMs Non ECC Unbuffered memory.

WARNING!

Unplug the system before carrying out the procedures described in this chapter. Failure to di sconnect power before you op en 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 wi th the co ver r emoved. Alway s replac e the cov er 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 or coloured green or green-and-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.

Vig535b Motherboard Manual

CAUTION!

The Viglen Vig535b motherboard and associated components are sensitive electronic devices. A small static shock from your body can cause expensive damage to your equipment.

Make sure you are earthed and f ree 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.

STEPS TO TAKE TO PREVENT STATIC DISCHARGE:

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 g uara nte ed. Upgrad es shou ld o nly be carried out by persons who are familiar with handling IC's, as incorrect installation will invalidate the guarantee.

Vig535b Motherboard Manual

Overview of Jumper Settings

The Vig535b motherboard contains the latest technol ogy to offer an almost jumper less configuration. All Pentium® 4 CPUs are automatically detected and the Speed is automatically set from the information provided by the CPU.

The only jumper present on the motherbo ard is for clearing all the CMOS settings. In the unlikely event of the CMOS becoming corr upted then jumper JP1 can be set to clear the contents of the CMOS.

CAUTION!

Never remove jumpers using large plie rs as t his can d a mage th e 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 first.

Vig535b Motherboard Manual

System Board Jumper Settings

Figure 3:

System Board Jumper Sett ing s

Table 4: Clear CMOS Jumper Settings

Function Jumper (JP1) Configuration

Default 1-2 The BIOS uses current configuration information and passwords for

booting.

Clear 2-3 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.

Note: Except when clearing the rtc ram, never remove the jumper on JP1 default

position. Removing the jumper will cause system boot failures.

Table 5: Bios Write Protection

Function

Write Protect Enabled (default)

Write Protect Disabled

Jumper (

2-3 Protects the BIOS from being written to.

1-2 Turn off the system and unplug the power cord. Move t he jumper

JP3)

Configuration

from pins 1-2 (default) to ins 2-3. Reboot the system.

Vig535b Motherboard Manual

Table 6: Front Panel Aud io Ju mper Se tt in gs

Function Jumper Configuration

Normal

5 – 6 and 9- 10

The audio line signals are rout ed back to the line connector.

Table 6a: Front panel Audio Connector

Pin Signal name Pin Signal name

1 Audio Mic 2 Ground 3 Audio Mic Bias 4 VCC 5 Speaker Out

Right Channel

7 X 8 Key 9 Speaker Out Left

Channel

6 Speaker Out

Right Channel Return

10 Speaker Out

Left Channel Return

CAUTION!

Do not move the jumper with the po wer on. Always turn off the power and u nplug the power cord from the computer before changing the jumper

Note: There is no jumper setting for configuring the processor speed or bus

frequency.

Vig535b Motherboard Manual

Motherboard Connectors

There are connectors on t he motherboard for FAN, IDE, Power supply, CD audio, Floppy, IDE, & Front Panel Connectors. The location and/or details of these connections are shown below.

Power Connector

Case fan 2

PSU ATX 12v

CPU Fan

Socket

PGA 478

SiS 661FX

Pin 1

COMM 2

Floppy

Drive

SEC_IDE

Pin 1 Pin 1

PRI_IDE

IDE

Audio AUX-IN

Front Panel

Audio

SiS

964L

BIOS

Case Fan 1

1234

Front USB

Header

Front Panel Connectors

Super

I/O

Internal

Speaker

Figure 4: Motherboard Connectors

Vig535b Motherboard Manual

Front Panel Connect ors

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.

Figure 5: Front panel connectors

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 i n 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 not.

Power On/Off

When these pins are shorted it turns the computer on and off.

Vig535b Motherboard Manual

Upgrading the CPU

CAUTION!

Allow time for the processor and heat sink to cool before touching either of them.

The Pentium® 4 processor together with Level 2 cache chips are housed in a protective package.

The design of the Vig535b computer makes it a simple job to replace or upgra de the processor. To do so please refer to figure 6 and follow the instructions below:

1. Read the warnings at the start of this chapter and ensure a static free environment

2. Remove the lid from the computer by removing the four screws at t he rear of the

case

3. Locate the CPU module by referring to Figure 1 if necessary

4. Locate the heat sink clips, and remove heat sink (and unplug FAN cable)

5. Lift arm on Socket to release the CPU

6. 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 6:

Installing the CPU heatsink (note heatsink type may vary from one shown above)

Vig535b Motherboard Manual

Installing & Removing Memory Modules

Installing Memory

You can install from 64MB to 2GB of memory in the motherboard DIMM sockets. The motherboard has two DIMM sockets. The motherboard supports the following memory features:

• 184-pin DIMMs with gold-plated contacts.

• Non-ECC (64-bit) memory.

• 64MB, 128MB, 256MB, 512MB and 1GB modules.

Note: DDR SDRAM must meet the Version 1.0 June 2000 JEDEC Solid State

Technology Association specifications for DDR266 SDRAM.

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 socket.

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.

Removing Memory

To remove a DIMM, follow these steps:

1. Observe the precautions in "Before You Begin”.

2. Turn off all peripheral devices connected to the computer. Turn off the computer.

3. Remove the computer cover.

4. Gently spread the retaining clips at each end of the socket. The DIMM pops out of the socket. it in an antistatic package.

5. Reinstall and reconnect any parts you removed or disconnected to reach the DIMM sockets.

Hold the DIMM by the edges, lift it away from the socket, and store

Vig535b Motherboard Manual

Figure 7: Removing Memory Modules

Expansion Slots

The motherboard has three PCI slots and one Accelerated Graphics Port (AGP) slot. To install and configure an expansion card:

1. Install an expansion card following the instructions that came with the chassis.

2. Turn on the system and change the necessary BIOS settings, if any. See Chapter 4, System BIOS.

3. Assign an IRQ to the card. Refer to the tables below.

4. Install the drivers and/or software application s for the expansion card according

to the card documentation.

Table 7: St andar d IR Q Ass ignm ent

IRQ Priority Standard Function

0 1 System Timer 1 2 Keyboard Controller

2 N/A Programmable Interrupt 4* 12 Communication Port (COM1) 5* 13 IRQ Holder for PCI steering

6 14 Floppy Disk Controller 7* 15 Printer Port (LPT1)

8 3 System CMOS/Real Tim e Clock 9* 4 IRQ Holder for PCI steering

10* 5 Advanced AC’97 CODEC 11* 6 Standard PCI Graph ics Adapter (VGA) 12* 7 PS/2 Compatible Mouse Port

13 8 Numeric Data Processor 14* 9 Primary IDE Channel 15* 10 Secondary IDE Channel

* These IRQs are usually ava ilable for ISA or PCI devices

Vig535b Motherboard Manual

Table 8: IRQ Assignments for this motherboard A B C D E F G H PCI Slot 1 - used - - - - - - PCI Slot 2 - - used - - - - - PCI Slot 3 - - - used - - - - AGP Slot used - - - - - - - Onboard USB Controller HC0 - - - - shared - - - Onboard USB Controller HC1 - - - - shared - - - Onboard USB Controller HC3 - - - - shared - - - EHCI - - - - shared - - - Onboard LAN - - used - - - - - Onboard Audio - - - - - - used -

PCI Slots

There are three 32-bit PCI slots on this motherboard. The slots support PCI cards such as a LAN card, SCSI card, USB card, and other cards that comply with PCI specifications.

Figure 8: Installing a PCI card

AGP Sl ot

This motherboard has an Accelerated Graphics Port (AGP) slot that suppo rts AGP 8X (3.3V/1.5V) cards.

Note: The notches o n the card golden fingers to ensure that they fit the AGP

slot on your motherboard.

Figure 9: Install an AGP card

Vig535b Motherboard Manual

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, t he system settings stored in CMOS RAM (for example, the date and time) may be wrong.

If the battery fails, you will ne ed to replac e it wit h 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.

CAUTION!

Danger of explosion if the battery is incorrectly replaced. Replace only with the same or equivalent type recommended by Vigle n. Discard used batteries according to manufacturer’s instructions.

The battery is listed as board component ‘E’ on the diagram on Figure 1. To replace the battery, carry out the following:

1. Observe the precautions in “Before You Begin.”

2. Turn off all peripheral devices connected to the system.

3. Turn off the system.

4. Remove any components that are blocking access to the battery.

5. 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 10).

6. Install the new battery in the socket.

Figure 10: Removing the Battery

Vig535b 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 er ror code m essages that m ight be displayed.

Please remember that if you cannot solve the probl em 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

Fax: 020 8758 7080 Email: techsupport@viglen.co.uk

You can also look for support information on our web site:

http://www.viglen.co.uk

Device drivers and various useful utilities can be downloaded from our ftp site:

ftp://ftp.viglen.co.uk

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 9: Resetting the System

To do the following Press

Soft boot: Clear the system memory and reload the operating system (also called warm reset).

Cold boot: Clear the system memory, halt power to all peri pherals, restart POST, and reload the operating system.

Vig535b Motherboard Manual

Power off/on or reset button (at front of the system)

Troubleshooting Procedures

This section provides a step-by-step troubleshooting procedure to identify a problem and locate its source.

CAUTION!

1. Turn off the system and any peripheral devices before you disconnect any peripheral cables from the system. Ot herwise, 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 display).

4. I f the operati ng syste m normally loa ds from the hard disk drive, mak e sur e 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 syste m seems to be operating nor mally, the i ndicat or is pr obably def ective. Monitor th e power -on self test (POST) execution. Each time y ou 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 (no n-fatal errors) disp lay a message that looks similar to the following:

Error Message Line 1 Error Message Line 2 Press <F2> for Set-up, <F1> to Boot

You can note the error and press <F1> to resume the boot- up p rocess, or <F2> to enter Set-up.

Errors that prevent the boot process from continuing (fatal errors), are communicated by a series of audible beeps. If this typ e of error occ urs, refer to t he er ror codes and messages listed at the end of this chapter.

6. Confir m that the operating system has loaded.

Vig535b Motherboard Manual

Problems Operating Add-in Boards

Problems related to add-in boards ar e 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 correcte d 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 pr oblems 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. Ple ase refer to the BIOS manual for details of how to do this.

• If the PCI/I SA legacy board uses mem ory space betw een 80000H - 9FFFFH, r un

Set-up and set conventional memory to 256 K.

• If the PCI/ISA legacy board uses shared memory between C8000H - DFFFH, run

Set-up and enable shared memory for the appropriate memory space.

Vig535b Motherboard Manual

Problems & Suggestions

Table 10: Problems and Suggest ions

What happens What to do

Application so ftw a re problems

Characters onscreen are distorte d or incorrect

Try resetting the system. Make sure all cab les are installed co r r ectly. 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 dri ve specified , for example), make the change in Setup and reboot the system. Record your ch an g e .

Make sure the so ftware is properly configured for the system. Refer to the software documentation for information.

Try a differe nt copy of the so ftware to see if th e problem is with t he 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 reconfigu ring the system . Make sure you have your list of system settings avai lable to re-enter, because clearing CMO S RAM sets the options to their default values.

Make sure the br ightness a nd contra st controls are properl y adjusted on the monitor.

Make sure the video signal cable and power cables are properly installed.

Characters do not appear on screen

CMOS RAM settings are wrong

Diskette drive light does not go on when drive is in use or is tested by POST

Make sure your monitor is compatible with the video mode you have selected.

Make sure the video displa y is plugge d in and tur ned on. Check that the br ightness and contrast controls are properly adjusted. Check that the vid eo sign al c able is properly instal led. Make sure a video board is installed, ena bled, and the jumpers are

positioned correctl y. Reboot the system. If system settings stored in CMOS RAM change for no apparent

reason (for example, the time of day develops an error), the backup battery ma y no longer have enou gh power to maintain the settings. Replace the battery (Chapter 2).

Make sure the power and signal cables for the drive are properly installed.

Check that the driv e is pro perly configured and ena bl ed in Setup.

Vig535b Motherboard Manual

Table 10: Problems and Suggest ions (Continued)

What happens What to do

Hard 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 installed.

Make sure the front panel connector is securely attached to the system board headers.

Check that the drive is prope r ly 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

Prompt doesn't appear after system boots

If the system is operat ing n ormall y, check the connect or betw een the system board and the front panel. If OK, the light may be de fective.

It’s probabl y sw it ched off. A serious fault may have occurred consult your dealer service

department / Technical Support.

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 comple ting POST

This indicates a fatal system error that requires immediate service attention. Note the screen display and write down any beep code emitted. Prov ide this inf ormati on to your dealer ser vice depa rtment / Technical Support.

Vig535b 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 BI OS also keeps a li st of the specificati ons of the computer in battery-backed RAM (also known as the CMOS RAM) and provides a special Setup program to change this information.

The BIOS in your Viglen com puter is guaran teed to be fully comp atible with the IB M BIOS. It has been written by American MegaTrends Inc. (AMI), 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 NetW are, etc. - from the hard disk (or floppy disk if one is inserted in Drive A:). The computer is then ready for use.

Vig535b Motherboard Manual

Phoenix BIOS

Introduction

The motherboard uses an Phoenix B IOS, which is stored in flash memory and can be upgraded using a disk-based program . In addition to the B IOS, 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 code.

BIOS Upgrades

A new version of the BIO S can be upgra ded f rom a disket te usi ng t h e AFUDOS .EXE utility that is available from the Vigle n FTP site. This utility does BIOS upgrad es as follows:

• 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 AWDFLASH.EXE utility may be available online at www.viglen.co.uk or by request.

Note: Please re view the instruc tions distri buted with the upgrade utili ty before

attempting a BIOS upgrade.

Using AWDFLASH to update the BIOS

The BIOS can be updated using the AWDFLASH.EXE utility in DOS environment.

Vig535b Motherboard Manual

Configuring the Motherboard using BIO S Setup

Before You Begin

CAUTION!

• 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 motherboard.

WARNINGS

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.

CAUTION!

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 protec tion by wearing an anti -static wrist strap and attaching it to a metal part of the computer chassis.

Vig535b Motherboard Manual

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 usi ng this utility.

Even if you are not prompted to use the S etu p pr ogram , you may want t o cha nge t he 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 BIO S 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 t he moth erboard st ores the Set up utilit y. W hen you st art up t he 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 s ystem 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 opti on only if the fi rst 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 sys tem becomes unstable after changing any BIOS settings, load

the default settings to ensure system sta bi lity. S elect th e Loa d Default Settings item under the Exit Menu.

Vig535b Motherboard Manual

BIOS Menu Screen

Figure 11:

BIOS Menu Screen

Menu Bar

The menu bar on top of the screen has the following main items:

Table 11: O

Standard CMOS features Advanced BIOS features Advanced Chips et Features Integrated Peripherals Power Management Setup PnP/PCI Configurations PC Health Status Displays information regard ing CPU temp and fan speed Frequency/Voltage Control

ptions

For changing the basic system configuration For changing the advanced system settings For changing Advanced chipset settings For changing PCI, AGP and USB settings For changing the advanced power m anagement (APM) configuration

For changing IRQ settings

For changing the CPU frequen c y and displaying current frequen cy information

To select an item on the menu bar, pr ess the right or left arrow key on the keyboard until the desired item is highlighted.

Navigation Keys

At the bottom right corner of a menu screen are the navigation keys for that particular menu. Use the navigati on ke ys to s elect items in the menu and change the settings.

Some of the navigation keys differ from one screen to another.

Vig535b Motherboard Manual

Main Menu Items

The Main menu is the first screen you are presented with on entering the BIOS setup.

Figure 12: Main Manu

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 f or the m enu ite ms. If an item is user-c onfigura ble, 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 configuratio n opti o ns for tha t 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 Up/Down arrow keys or PageUp/PageDown keys to display the other items on the screen.

Vig535b Motherboard Manual

General Help

To view general help press F1. This displays help information on the particular option you are in.

Standard CMOS Features

When you enter the BIO S Setup pro gr am, the Main menu screen a ppea rs givi ng you an overview of the basic system information.

Figure 13: Standard CMOS features

System Date

This item allows you to set the system date [xx:xx:xx].

System Time

This item allows you to set the system time [xx:xx:xx]

IDE Channel X Master/Slave

This shows what devices are running of which IDE channel.

Drive A, B [1.44M, 3.5 in.]

Sets the type of floppy drive installed. Configuration options:

[Disabled] [360K, 5.25 in.] [1.2M , 5.25 in.] [720K , 3.5 in.] [1.44M, 3.5 in.] [2.88M, 3.5 in.]

Floppy 3 Mode Support

This feature is not supported.

Vig535b Motherboard Manual

Video

This item selects the type of video adapter used for the primary system monitor.

Halt On

This item determines whether the system stop s if an error is detect during s ystem boot-up.

Base Memory

This displays the amount of base memory installed on the system, typically 640K.

Extended Memory

This displays the amount of extended memory detected during system boot-up.

Total Memory

This displays the total amount of memory available in the system.

Vig535b Motherboard Manual

Figure 14:

IDE Device Sub- M enu

IDE HDD Auto-Detection

This item allows you to detect the parameters of IDE devices by pressing <Enter>. The parameters are shown automatically on the screen.

IDE Channel 0 Master/Slave IDE Channel 1 Master/Slave

When set to [Auto], the BIOS will automatically ch eck what kind of IDE device you are using. If you want to define your own driv e, set it to [Manual] an d make sure you fully understand the meaning of the parameters. Refer to the manual supplied with the device to get the correct settings.

Access Mode

This item selects the mode to access your IDE device. Leave this to its default [Auto] setting to detect the access mode of your HDD automatically.

Capacity

The approximate size of the disk drive. The size is normally slightly greate r then the formatted disk given in the disk-checking program.

Cylinder

This item configures the number of cylinders

Head

This item configures the number of read/write heads.

Precomp

This item displays the number of cylinders at which to change the write timeing.

Vig535b Motherboard Manual

Landing zone

This item displays the number of cylinders specified as the landing zone for the read/write heads.

Advanced BIOS features

The Advanced menu items allow you to change the settings f or the CPU and other system devices.

CAUTION!

Take caution when changing the settings of the Advanced menu items. Incorrect field values may cause the system to malfunction.

Figure 15: Advanced BIOS fe atures Sub-Menu

CPU Feature

This item is used to manage the thermal state for certain CPU.

Hard Disk Boot Priority

Use this option to select the hard disk boot priority

CPU L3 Cache

This item is used to enable the L3 cache (default setting) and appears only for certain CPU (Intel Pentium 4 processor with HT technology Extreme Edition) that possesses L3 cache.

Vig535b Motherboard Manual

Hyper-Threading Technology

This item is used to enable the functionality of the processor with Hyper-Threading Technology and will appear only when using such processor.

First Boot / Second Boot Device / Third Boot Device / Boot Other Device

Select the drive to boot first, second and third in the [First Boot Device], [Second Boot Device] and [Third Boot Device] items respectively. The BIOS will boot the operating system according to the sequence of the drives selected. Set [Boot Other Device] to [Enabled] if you wish to boot from another device other than these three items.

Swap Floppy Drive

When set to [Enabled], and the system is booting from the floppy drive, the system will boot from drive B instead of the regular drive A. There must be two floppy drives connected in the system to use this function.

Boot Up Floppy Seek

When set to [Enabled], the BIOS will check whether the floppy disk drive is installed or not.

Boot Up NumL o c k S tatus

This item determines the default state of the numeric keypad at system boot up.

[On] The numeric keypad functions as number keys. [Off] The numeric keypad functions as arrow keys.

Security Option

This item determines when the system will prompt for password - every time the system boots or only when enters the BIOS setup.

[Setup]: The password is required only when accessing the BIOS Setup. [System]: The password is required each time the computer boots up.

NNOOTTEE:: DDoonn’’tt ffoorrggeett yyoouurr ppaasssswwoorrdd.. IIff yyoouu ffoorrggeett tthhee ppaasssswwoorrdd,, yyoouu wwiillll hhaavvee ttoo ooppeenn

tthhee ccoommppuutteerr ccaassee aanndd cclleeaarr aallll iinnffoorrmmaattiioonn iinn tthhee CCMMOOSS bbeeffoorree yyoouu ccaann ssttaarrtt uupp tthhee ssyysstteemm.. BBuutt bbyy ddooiinngg tthhiiss,, yyoouu wwiillll hhaavvee ttoo rreesseett aallll pprreevviioouussllyy sseett ooppttiioonnss..

MPS Version Ctrl For OS:

This item specifies which version of MPS (Multi-Processor Specification) this motherboard will use. Leave this item to its default setting.

Vig535b Motherboard Manual

OS Select For DRAM >64MB

This item allows access to memory great er then 64MB when using OS/2. Leav e this item to its default setting when using any other operating system.

Disable Unused P C I Clock

This option disables the clock of a PCI slot that is not in use. [Yes]: The system automatically detects the unused DIMM and PCI slot and stops

sending the clock signal to them.

[No]: The clock signal is sent to all PCI slots.

Advanced Chipset Features

Figure 16:

DRAM Timing Control

Memory Timing

Advanced Chipset Features

Figure 17:

DRAM Timing Control

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Allows the used to select the CAS latency time in HCLKs of 2, 2.5 or 3. The value is set a the factory depending on the DRAM installed. DO NOT change the values in this field unless you have changed the DRAM or CPU.

AGP & P2P Bridge Control

Figure 18: AGP & P2P Bridge Control

AGP Aperture Size

This controls how much system RAM is allocated to the AGP for video purposes.

Graphic Window WR Combin

This determines whether the graphic window base address is valid or not.

AGP Fast Write Support

Enables and disables AGP fast write support.

AGP Data Rate Capability

This allow the user to control the AGP card data transfer rate.

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OnChip AGP Control

Figure 19 : On Chi p AGP Control

VGA Share Memory Size

This shows the amount of memory borrowed from the main memory for use with the VGA. In the case above the memory being used for the VGA is 32MB, this also means that 32MB will be lost from the main memory.

Figure 20: Advanced Chipset Feat ures

System BIOS Cacheable

This allows the BIOS to be cached in the memory for faster execution. Enable for better performance.

Video RAM cacheable

This allows the video BIOS and RAM to be cached in the memory for faster execution. Enable for better performance.

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Integrated Peripherals

Figure 21 : Integrated Peripherals

Init Display First

This specifies whether your graphics card in installed in one of the PCI slots or is integrated on the motherboard.

OnChip IDE Device

Figure 22: OnChip IDE Device

Internal PCI/IDE

Used to enable or disable the internal PCI IDE channel.

IDE Bus Master

Used to enable or disable the IDE bus mastering under DOS.

IDE Burst Mode

When enabled every write instruction sent by the system, will be sent to the write buffer. Burst able transaction then burst on the PCI bus in one go and non-burst able transactions do not.

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OnChip PCI Device

Figure 23: OnChip PCI Device

USB Controller

This enable the USB controller. Leave as the default ‘Enable’ if you wish to add USB device to your computer.

USB 2.0 Supports

Enables USB 2.0 support on your computer.

USB Keyboard Support via

This allows a USB keyboard to be used in a DOS environment by selecting [BIOS] or in the OS by selecting [OS].

USB Mouse Support via

This allows a USB mouse to be used in a DOS environment by selecting [BIOS] or in the OS by selecting [OS].

Audio Cont roller

This allows you to control the onboard AC97 audio. Disable this item if you are going to install a PCI audio add-on card.

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Onboard SuperIO Device

Figure 24 : O nboard SuperIO device

Onboard FDD Controller

This enables the onboard floppy disk drive controller.

Onboard Serial Port 1

This assigns the I/O address and interrupt request (IRQ) for the onboard serial port1 (COM1)

Onboard Serial Port 2

This assigns the I/O address and interrupt request (IRQ) for the onboard serial port2 (COM2)

Onboard Parallel Port

This assigns the I/O address and interrupt request (IRQ) for the onboard parallel port.

Parrallel Port Mode

This sets the da ta transfer protocol for your parallel port. There are four options: SSP (Standard Parrallel Port), EPP (Enhanced Parallel Port), ECP (Extended Capabilities Port) and ECP+EPP. SPP – Output Only. ECP/EPP – Bi-directional, allows both input and output. Only supported by ECP and EPP award peripherals.

ECP Mode Use DMA

When the parallel port is set to ECP mode, the port can use either DMA 3 or DMA 1.

Vig535b Motherboard Manual

Onboard PCI Device

Figure 25 : Onboard PCI Device

Onboard LAN Device

Enables and disables the onboard LAN

LAN Boot ROM

Enables and disables booting from the onboard LAN or a network add-in card with a remote boot ROM installed.

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Power Management Setup

Figure 26: Power Management Setup

ACPI Suspend Type

This selects the type of suspend mode. [S1(POS)] Enables the Power On Suspend function.

[S3(STR)] Enables the Suspend to RAM function.

MODEM Use IRQ

This specifies the IRQ that is used by the modem in order to be woken from an incoming call.

Power Button Override

Under ACPI (Advanced Configuration and Power management Inter f ace) you can create a software power down. A software power down allows the system to resume from Wake Up Alarms. This is controlled by the power button. If set to Instant-Off the system powers off straight away. If set to Delay 4 sec. the power button has to be held for 4 seconds before shutting down.

Restore On AC Power Loss

Selects the action the system takes after a AC power failure. [Power Off] When the AC power returns the system remains off. You must press the

power bu tton t o turn th e s y s tem on. [Power On] When the AC power returns the system will be powered on

automatically. [Last State] When the AC power returns the system will return to the state it was in. If

it was left on when the power goes then it will be turned on, if it was off it will remain off.

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PM Wakeup Events

Figure 27: PM Wake up events

Wakeup by Ring

Wakes the system up from a incoming call on a modem.

Wakeup by PME# of PCI

Wakes the system from power saving mode when a signal is received from a specific hardware peripheral or component.

USB Resume from S3

Allows a US B device to wake t h e system from S3.

PS2KB Wakeup from S3

Allows a PS/2 keyboard to wake the system by either a hot key combination or any key that is pressed. The default is [Any Key].

PS2MS Wakeup from S3

Allows a PS/2 mouse to wake the system by either just movement or movement and a click. The default is [Move & Click].

Wakeup by Alarm

Allows the system to be woken from an alarm. Once enabled options for Month Alarm, Day Alarm and time alarm are available to be selected and edited.

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PnP/PCI Configurations

Figure 28: PnP/PCI Configurations

Forced Update ESCD

When this is Enabled, next time you boot up the ESCD is cleared and the BIOS resets the settings for the plug & play PCI card. The following boot up this will be reset to disable.

NNoottee:: TThhee EESSCCDD ((EExxtteennddeedd SSyysstteemm CCoonnffiigguurraattiioonn DDaattaa)) ccoonnttaaiinnss tthhee IIRRQQ,, DDMMAA,, II//OO ppoorrtt aanndd mmeemmoorryy iinnffoorrmmaattiioonn ooff tthhee ssyysstteemm.. TThhiiss iiss aa ssppeecciiffiiccaattiioonn aanndd ffeeaattuurree ooff tthhee PPlluugg && PPllaayy BBIIOOSS..

IRQ Resources

Figure 29: IRQ Resources

This sets each system interrupt either [PCI Device] or [Reserved].

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PnP/PCI Configurations Setup Menu

Figure 30: PnP/PCI Configurations

PCI/VGA Palette Snoop

This determines whether the MPEG ISA/VESA VGA cards can work with PCI/VGA or not. [Enable] MPEG ISA/VESA VGA card work with PCI/VGA. [Disable] MPEG ISA/VESA VGA card do not work with PCI/VGA.

PIRQ_0 Use No. ~ PIRQ_7 Use IRQ No.

This allows IRQ numbers to be specified manually or automatically for installed PCI devices.

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PC Health Status

Figure 31: PC health Status

CPU Shutdown Temperature

This item allows a temperature to be set at which the system will shut down automatically to prevent over heating.

All Voltages, Fans Speed and Thermal Monitoring

These are unchangeable as they give the current statues of the CPU, environment temperatures, fan speeds and the system power voltage.

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Frequency/Voltage Control

Figure 32: Frequency/Voltage Control

CPU Clock ratio

Allows the CPU clock ratio to be changed if it isn’t locked.

Spread Spectrum

If enabled, could reduce the EMI (Electro-Magnetic Interference) generated by the system.

Clock Contr o l B y

Allows control over Async, CPU Frequency, DRAM Ratio and DRAM frequency.

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Main Menu Additonal Options

Figure 33 : Main Me n u

Load Fail-Safe Defaults

Loads the BIOS defaults that are most stable and implement miniamal system operation.

Load Optimized Defaults

Loads the BIOS defaults that are set by the factory for optimal performance.

Set Password

Allows a password to be set to restrict access to the BIOS configuration

Save & Exit Setup

Allows the settings that have been changed to be saved and exits the BIOS setup menu. This also reboots the machine.

Exit Without Saving

Exits the BIOS setup menu without saving any setting that have been changed. This also reboots the machine.

Vig535b Motherboard Manual

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 th e motherboard, CPU and/or any other hardware.

You do not need to read this chapter to configure your mother board. 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 changes.

• 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. No w 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 a dde d which allows u p to f ou r I D E driv es t o 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 m aximum 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.

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Extended CHS mode also overc omes the 528MB maximum size limitation imp osed 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 Logic al Block mode if it is supported by the drive. The second choice is to utilise Extended CHS mode if the drive to pology 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 dr iver in order to operate in that mode.

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 suppo r t L BA.

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 f itted to th e system supp orts 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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Power Supply Connector

When used with an ATX-compliant power s upply that supports r emote power on/off, the motherboard can turn off the system power through software control.

To enable soft-off control in software, advanced power management must be enabled in the Setup program an d in the operating system. When the s ystem BIOS receives the correct APM command from the operating system, the BIOS turns off power to the computer.

With soft-off enabled, if power to the computer is int errupted by a power outage or a disconnected power cord, when power resumes, the computer returns to the power state it was in before power was interrupted (on or off).

Table 12: Power Supply Connector

Pin Signal Name

1 +3.3 V 2 +3.3 V 3 Ground 4 +5 V 5 Ground 6 +5 V 7 Ground 8 PWRGD (Power Good) 9 +5 VSB (Standby) 10 +12 V 11 +3.3 V 12 -12 V 13 Ground 14 PS-ON# (power supply remote on/off control) 15 Ground 16 Ground 17 Ground 18 -5 V 19 +5 V 20 +5 V

Other U seful Connector s

Table 13:

Connector Pin Signal Name Connector Pin Signal Name

Sleep/Power LED Green Sleep/Power LED Yellow Power Switch 6 SWITCH ON RESET 5 RESET Power Switch 8 Ground RESET 7 Ground No connection 10 None No conne c tion 9 +5V

Front Panel I/O Connectors

2 +5 V HDD LED 1 +5V HDD 4 0 v HDD LED 3 OV HDD

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Table 14: PS/2 Keyboard/Mouse Connectors

Pin Signal Name

1 Data 2 No connect 3 Ground 4 +5 V (fused) 5 Clock 6 No connect

Table 15: Stacked USB Connectors

Pin Signal Name

1 +5 V (fused) 2 USBP0# [USBP1#] 3 USBP0 [USBP1] 4 Ground

Table 16: Seri al Port Connectors

Pin Signal Name

1 DCD 2 Serial In # 3 Serial Out # 4 DTR# 5 Ground 6 DSR 7 RTS 8 CTS 9 RI

Table 17: Audio Line Out Connector

Pin Signal Name

Sleeve Ground Tip Audio Left Out Ring Audio Right Out

Table 18: Audio Line In Connector

Pin Signal Name

Sleeve Ground Tip Audio Left In Ring Audio Right In

Table 19: Audio Mic In Connector

Pin Signal Name

Sleeve Ground Tip Mono In Ring Electret Bias Voltage

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Table 20: Parallel Port Connector

Pin Signal Name Pin Signal Name

1 Strobe# 14 Auto Feed# 2 Data bit 0 15 Fault# 3 Data bit 1 16 INIT# 4 Data bit 2 17 SLCT IN# 5 Data bit 3 18 Ground 6 Data bit 4 19 Ground 7 Data bit 5 20 Ground 8 Data bit 6 21 Ground 9 Data bit 7 22 Ground 10 ACK# 23 Ground 11 Busy 24 Ground 12 Error 25 Ground 13 Select

Table 21: PCI Bus Connectors

Pin Signal Name Pin Signal Name Pin Signal Name Pin Signal

Name

A1 Ground

(TRST#)* A2 +12 V B2 Ground (TC K ) * A33 +3.3 V B33 C /BE2# A3 +5 V (TMS)* B3 Ground A34 FRAME# B34 Ground A4 +5 V (TDI)* B4 no connect ( TDO)* A35 Ground B35 IRDY# A5 +5 V B5 +5 V A36 TRDY# B36 +3.3 V A6 INTA# B6 +5 V A37 Ground B37 DEVSEL# A7 INTC# B7 INTB# A38 STOP# B38 Ground A8 +5 V B8 INTD# A39 +3.3 V B39 LOCK# A9 Reserved B9 no connect (PRSNT1#)* A40 +5 V (SDONE)* B40 PERR# A10 +5 V (I/O) B10 Reserved A41 +5 V (SBO#)* B41 +3.3 V A11 Reserved B11 no connect (PRSNT2#)* A42 Ground B42 SERR# A12 Ground B12 Ground A43 PAR B43 +3.3 V A13 Ground B13 Ground A44 AD15 B44 C/BE1# A14 +3.3 V aux B14 Reserved A45 +3.3 V B45 AD14 A15 RST# B15 Ground A46 AD13 B46 Ground A16 +5 V (I/O) B16 CLK A47 AD11 B47 AD12 A17 GNT# B17 Ground A48 Ground B48 AD10 A18 Ground B18 REQ# A49 AD09 B49 Ground A19 PME# B19 +5 V (I/O) A50 Key B50 Key A20 AD30 B20 AD31 A51 Key B51 Key A21 +3.3 V B21 AD29 A52 C/BE0# B52 AD08 A22 AD28 B22 Ground A53 +3.3 V B53 AD07 A23 AD26 B23 AD27 A54 AD06 B54 +3.3 V A24 Ground B24 AD25 A55 AD04 B55 AD05 A25 AD24 B25 +3.3 V A56 Ground B56 AD03 A26 IDSEL B26 C/BE3# A57 AD02 B57 Ground A27 +3.3 V B27 AD23 A58 AD00 B58 AD01 A28 AD22 B28 Ground A59 +5 V (I/O) B59 +5 V (I/O) A29 AD20 B29 AD21 A60 REQ64C# B60 ACK64C# A30 Ground B30 AD19 A61 +5 V B61 +5 V A31 AD18 B31 +3.3 V A62 +5 V B62 +5 V

* These s ignals (in parentheses) are optional in the PCI specification and are not currently

implemented .

B1 -12 V A32 AD16 B32 AD17

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Table 22: Front Panel USB

Pin Pin Assignment Pin Pin Assignment 1 VCC 2 VCC 3 Data0 - 4 Data1 5 Data0 + 6 Data1 + 7 Ground 8 Ground 9 NC 10 NC

Table 23: COM2

Pin Pin Assignment Pin Pin Assignment 1 DCD 2 RXD 3 TXD 4 DTR 5 Ground 6 DSR 7 RTS 8 CTS 9 RI 10 NC

Table 24: Internal Speaker

Pin Pin Assignment 1 Signal 2 NC 3 Ground 4 +5V

Vig535b Motherboard Manual

Other Information

Reliability

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 112,977. 7547 hours.

Temperature

Table 25:

Temperature Spec ifica t ion

Non-operating Operating

Temperature

-40

°C to +70°C

°C to +55°C

Vig535b Motherboard Manual

Chapter 6: Glossary

BIOS

(Basic Input Output System) This is software stored on a chip and consists of the instructions necessary for the computer t o function. The System BIOS contains the instructions for the keyboard, disk drives etc ., and the VGA BIOS controls the VGA graphics card.

CPU

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.

Default The configuration of the system when it is switched on or the standard settings before any changes are made.

DIMM

Dual In-Line Memory Module, a typ e of memory module used for the system s main memory.

Driver

A piece of software which is used by application software to control some special features. Each graphics board and printer requires its own driver.

D-Type

A common type of connector used for connecting printers, serial ports, game port, and many other types of interface.

DRAM

Dynamic Ram used for m ain system m emory, pr oviding a moder ately fast but c heap storage solution.

FDC

Floppy Disk Controller - the interface for connecting floppy disk drives to the computer.

Hercules

A monochrome graphics video mode which first appeared in the Hercules graphics card. Provides a resolution of 720 by 348 pixels.

IDE

Integrated Drive Electronics - currently the most popular type of interface for hard disk drives. Much of the circuitry previously required on har d disk controller cards is now integrated on the hard disk itself.

Vig535b Motherboard Manual

Interface

The electronics providing a connection between two pieces of equipment. For example, a printer interface connects a computer to a printer.

Interlace

The mode the graphics car d uses to refres h a monitor scr een. When the graphics is in interlace mode, the f requency of the display update is lower than in non-interl ace mode. This causes a slight flicker, so generally n on-interlaced mode is better if the monitor supports it.

L.E.D.

Light Emitting Diode - a light which indicates activity - for example hard disk access.

PCI

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'.

RAM

Random Access Memory - the memory used by the computer for running programs and storing data.

ROM

Read Only Memory - a memor y 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 t han 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 S ystem BIOS is responsible for this copying.

Super VGA

Additional screen modes and capabilities provided over and above the standard VGA defined by IBM.

VGA

Video Graphics Array - the graphics standard defined by IBM and provided on IBM's PS/2 machines.

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Notes

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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 V iglen help to keep and imp rove the standard of thei r manuals.

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Please return this slip to: Product Development Dept. Viglen Ltd. Viglen House Alperton Lane Alperton Middlesex HA0 IDX

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