Viglen N440BX User manual

Brand: Viglen

Model: N440BX

Category: Server/workstation motherboards

Type: User manual

&KDSWHU2Y HU YLH Z

Introduction

This manual describes the Viglen N440BX 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 makes the computer work.

The motherboard contains the very latest CPU design, the Intel Pentium II

processor, which includes 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

multimedia and communications on your PC. The combination of the Intel Pentium II

processor, MMX technology and Viglen expertise make this a formidable computer.

This manual contains technical information about the Viglen N440BX 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 or 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.

1%;0RWKHUERDUG6SHFLILFDWLRQ

Figure 1

System Board Components

A Secondary processor connector

(SEC)

N System fan connector

B Primary processor connector (SEC) O Server monitor module connector

C Heatsink fan connectors P Narrow SCSI connector

D ATX power connector Q Wide SCSI connector

E Battery R DIMM Memory sockets (4)

F Main power connector S ISA expansion slots (2)

G Front panel connector, 16 pin T PCI expansion slots (4)

H AT front panel connector U Chassis intrusion header

I System fan connector V RJ-45 network controller

J Speaker W USB connector

K Diskette drive connector X Serial port B header (COM 2)

L IDE connectors Y I/O connections (VGA, Serial, etc.)

M Configuration jumper blocks Z PS/2 keyboard and Mouse ports

A B

D E

Pri.

Sec.

OPQR

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 problems.

• 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, the VGA port and a RJ45 Local Area

Network (LAN) connection.

Figure 2

NOTE:

The mouse and keyboard can be plugged into either of the PS/2 connectors. Power to the

computer should be turned off before a keyboard or mouse is connected or disconnected.

NETWORK

SERIAL 1

PRINTER

MOUSE

KEYBOARD

VGA

Feature Summary

The N440BX motherboard supports two Intel Pentium ® II processors with second –

level cache integrated in a Single Edge Contact (SEC) cartridge operating at 233,

266, 300, 333, 350, 400MHz and beyond.

The motherboard features:

Form factor

• ATX form factor of 12 x 13 inches.

Processor

• Dual Pentium II processor.

• 66 or 100 MHz Front Side Bus speed.

• 512 KB second-level cache on the substrate in the Single Edge Contact

(SEC) cartridge.

• 2 * Slot 1 connector’s.

Main memory

• Four 168-pin DIMM sockets.

• Support for up to 1 GB of 100MHz synchronous Double-banked SDRAM or

512 MB of 100MHz Synchronous Single-banked SDRAM.

• ECC 3.3V memory only.

Intel 440BX PCI/IDE Interface.

• Intel 82443BX PCI/AGP controller (PAC).

Integrated PCI bus mastering controller.

• Intel 82371EB PCI/ISA IDE Xcelerator (PIIX4).

Supports up to four IDE drives or devices. PIO mode 4 and DMA

Transfer rates up to 22MB/sec.

DMA controller.

Two fast IDE interfaces.

I/O features.

• The 87309 devices supports two FIFO serial ports, one Multi-mode Parallel

port, floppy disk drive, PS/2 keyboard and mouse and an integrated Real

Time Clock (RTC).

Symbios SYM53C876 controller Interface.

• Support for 8 or 16 bit fast SCSI.

• Up to 15 devices.

• Max data transfer 40MB/sec.

Integrated Network Interface.

• Intel 82558 PCI LAN adapter.

• For 10 or 100 Mbps TX fast Ethernet networks.

Integrated PCI Video.

• CL-GD5480 64-bit VGA.

• 1MB RAM video memory.

• Support for resolutions up to 1280 x 1024 and support for 16.7 M colors in

certain resolutions.

Expansion slots.

• Two ISA slot one shared.

• Four PCI slots one shared.

Additional features.

• Intel/Phoenix BIOS that supports Plug and Play, advanced IDE features, and

password security

• Plug and Play compatible.

Microprocessor

The motherboard supports dual Pentium II processor’s. The processor’s VID pins

automatically program the voltage regulator on the motherboard to the required

processor voltage. The motherboard currently supports processor’s that run

internally at

233, 266, 300, 333

350 and 400MHz

all with 512 KB second-level

cache. The processor’s implements MMX ™technology and maintains full backward

compatibility with the 8086, 80286, Intel386 ™, Intel486 ™, Pentium, and Pentium

Pro 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 II processor is a Single Edge Contact (SEC) Cartridge that connects to

the motherboard through Slot 1, a 242-pin edge connector. The Pentium II

processor S.E.C. Cartridge consists of:

• Processor card including the processor core and the second-level cache:

burst pipelined synchronous static RAM (BSRAM)

• Thermal plate

• Back cover

When the Pentium II processor’s are mounted into the Slot 1 connectors, they are

secured by a retention mechanism attached to the motherboard.

Second Level Cache

The second-level cache is located on the substrate of the SEC cartridge. The cache

includes burst pipelined synchronous static RAM (BSRAM). There are four BSRAM

components totaling 512 KB in size. All supported onboard memory can be cached.

Processor Upgrades

The motherboard can be upgraded with Pentium II processors that run at higher

speeds. When upgrading the processor the USER must manually configure the

processor speed’s.

Memory

Main Memory

The motherboard has four dual inline memory module (DIMM) sockets. Minimum

memory size is 16 MB; maximum memory size is 512

with 1 GB being available

in the future with the use of double-banked DIMMs. The BIOS automatically detects

memory type, size, and speed.

The motherboard supports the following memory features:

• 168-pin DIMMS with gold-plated contacts.

• 100 MHz PC/100 SDRAM only.

• ECC (72-bit) 3.3 V memory only.

• Single or double-banked DIMMs in the following sizes:

Table 1

DIMM Size ECC Configuration

16 MB 2 Mbit x 72

32 MB 4 Mbit x 72

64 MB 8 Mbit x 72

128 MB 16 Mbit x 72

256 MB 32 Mbit x 72

Memory can be installed in one, two, three or four sockets. Memory size can vary

between the sockets.

SDRAM

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.

NOTE:

To function properly, SDRAM DIMMS must meet the PC/100, 100 MHz, and unbuffered

SDRAM specification for 72-bit SDRAM.

ECC Memory

Error checking and correcting (ECC) memory detects multiple-bit errors and corrects

single-bit errors.

Chipset

The Intel 440BX chipset is the latest generation of Intel’s PCI set and is designed for

the Pentium II processor. It consists of the Intel 82443BX PCI/A.G.P. controller

(PAC) and the Intel 82371EB PCI/ISA/IDE controller (PIIX4) bridge chip.

Intel 82443BX PCI/A.G.P. Controller (PAC)

The PAC provides bus-control signals, address paths, and data paths for transfers

between the processor’s host bus, PCI bus, and main memory. The PAC comes in a

492-pin BGA package and features:

• Processor interface control

 Processor host bus speed of 100 MHz or 66 MHz

 32-bit addressing

 GTL+ compliant host bus

• Integrated DRAM controller

 Support for synchronous DRAM (SDRAM)

 72-bit non-interleaved path-to-memory

 Auto detection of memory type

 Support for Mbit DRAM devices

 Symmetrical and asymmetrical DRAM addressing

 Support for 3.3 V DRAM only

• Fully-synchronous PCI bus interface

 Compliance with PCI specification

 PCI-to-DRAM access greater than 100 MB/sec

 Support for five PCI bus masters.

 Delayed transactions

 PCI parity checking and generation support

• Data Buffering

 Host-to-DRAM, PCI-to-DRAM, and A.G.P.-to-DRAM read buffers

 Write-combining for host-to-PCI burst writes

 Supports concurrent host, PCI, and A.G.P. transactions to main memory

• Support for system management mode (SMM)

Intel 82371EB PCI ISA IDE controller (PIIX4)

The PIIX4 is a multifunction PCI device implementing the PCI-to-ISA Bridge, and PCI

IDE functionality. The PIIX4 comes in a 324-pin MBGA package that features:

• Multifunction PCI-to-ISA bridge

 Support for the PCI bus at 33 MHz

 Compliance with PCI specification

 Full ISA bus support

• Integrated dual-channel enhanced IDE interface

 Support for up to four IDE devices

 PIO Mode 4 transfers at up to 16 MB/sec

 Support for Ultra DMA/33 synchronous DMA mode transfers up to 33

MB/sec

 Bus master mode with an 8 x 32-bit buffer for bus master PCI IDE burst

transfers

• Enhanced DMA controller

 Two 8237-based DMA controllers

 Support for PCI DMA with three PC/PCI channels and distributed DMA

protocols

• Interrupt controller based on 82C59

 Support for 15 interrupts

 Programmable for edge/level sensitivity

• 16-bit counters/timers based on 82C54

• Real-time Clock

 256-Byte battery-backed CMOS SRAM

 Includes date alarm

IDE Support

The motherboard has two independent bus-mastering PCI IDE interfaces. These

interfaces support PIO Mode 3, PIO Mode 4, ATAPI devices (e.g., CD-ROM), and

DMA mode transfers. The BIOS supports logical block addressing (LBA) and

cylinder head sector (CHS) 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 the

Windows NT operating system.

The N440BX 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 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.

Super I/O Controller

The PC87309 Super I/O Controller from National Semiconductor is an ISA Plug and

Play compatible, multifunction I/O device that provides the following features:

• Serial ports

 Two 16450/16550A-software compatible UARTs

 Internal send/receive 16-byte FIFO buffer

 Four internal 8-bit DMA options for the UART with SIR support (USI)

• Multimode bidirectional 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

 DP8473 and N82077 compatible

 16-byte FIFO

 PS/2 diagnostic-register support

 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

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 connectors, one is located on the back panel and the

other connected to a 10pin header and is relocatable.

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)

Floppy Controller

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

• 1.2 MB, 3.5-inch (driver required)

• 1.25/1.44 MB, 3.5-inch

• 2.88 MB, 3.5-inch

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 contains the AMI Megakey keyboard and mouse controller

code, which provides the keyboard and mouse control functions, and supports

password protection for power on/reset. A power on/reset password can be

specified in Setup.

The keyboard controller also 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).

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

auto-configuration utility, and BIOS recovery code.

DMI (Desktop Management Interface)

DMI is a new PC Management system designed for networked PC’s. It allows

connected computers, running the appropriate software to control functions on

designated computers on the network. This motherboard adheres to Levels 0 & 1 of

DMI, which are outlined below.

Table 2

LEVEL 0

Operating System embedded

support functions

BIOS has embedded support for Windows

95 and NT operating systems

LEVEL 1

Full Level 0 Management Incorporates Management Level 0

ECC on Memory Memory has Error correcting technology

DMTF Compliant Software The system has an option to be supplied

with LANDesk® Client Manager 3.0

DMI Compatible BIOS Lowers the cost of ownership through

simplified system manageability

Chassis Security Header (reserved for future use)

The management extension hardware supports an optional chassis security feature

that detects if the chassis is opened while the computer is powered on. The security

feature uses a mechanical switch on the chassis that is attached to an optional 1 x 3-

pin header (J4A1). The mechanical switch is closed for normal computer operation.

Server Management

All server management functionality formerly distributed between 3 controllers is now

concentrated in the Baseboard Management Controller (BMC). The primary

functions of the BMC it to autonomously monitor system platform management

events, and log their occurrence in the non-volatile SEL. These include events such

as fan failure, chassis intrusion and over-temperature. The BMC provides an ISA

host interface to SDRR information so software running on the server can poll and

retrieve the current status of the platform. A shared register interface is defined for

this purpose.

SEL contents can be retrieved after system failure, for analysis by using system

management tools such as Intel LANDesk® Server Manager. Using the built in EMP

feature or an Emergency Management Card such as the Intel LANDesk® SMM card,

the information in the SEL can be obtained from a remote location via a LAN or

telephone line.

Emergency Management Port (EMP)

The COM2 serial port on your N440BX server can be configured for use as an

Emergency Management Port. EMP provides a level of system management during

power-down, pre-boot and post-boot situations. It can be achieved via a point-to-

point RS-232 connection or an external modem. EMP provides access to these

basic management features:

• System Power up

• System power down (Not available when in restricted mode)

• System reset (Not available when in restricted mode)

• Access to the System Event Log, FRU and Sensor Data Records

• Access to BIOS console Redirection

• Password protection

The EMP is intended for use only in a secure environment. A simple password can

be configured to provide a rudimentary level of security.

The COM2 port on the N440BX can be used for three different purposes:

• Normal serial communications port

• Console Redirection

• EMP

When the port is being used for EMP purposes and the Access Mode has been set

to always active in the BIOS, then it is unavailable for any other use.

PCI Auto Configuration

The PCI auto-configuration utility works in conjunction with the Set-up program to

support 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. The PCI auto-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 two 16-bit ISA/AT-compatible and four PCI-compatible expansion

slots. One ISA and one PCI slot are shared so this provides system expansion of up

to five add-in cards.

&KDSWHU 6\ VWHP%RDUG 2SWLRQV

The N440BX motherboard is capable of accepting 233, 266, 300, 333, 350MHz, and

400MHz, Pentium II CPU's. RAM can be upgraded to a maximum of 1GB using

double-banked ECC SDRAM DIMMs.

WARNING

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 proceed 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

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

or coloured black.

The wire which is coloured brown must be connected to the terminal which is marked with

the letter

or coloured red.

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.

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 guaranteed. Upgrades should only be carried out by persons who

are familiar with handling IC's, as incorrect installation will invalidate the guarantee.

CAUTION!

The Viglen N440BX motherboard

and associated components are

sensitive electronic devices. A small

static shock from your body can

cause expensive damage to your

equipment.

Overview of Jumper Settings

The system motherboard inside your computer contains a block of twenty-one pins

and seven plastic jumpers. Different pins and jumper configurations make it possible

to change how the computer functions. This section of the manual should give you

all the information you will require making any changes.

Changes you can make, in this way, are as follows:

• Reset the CMOS RAM settings to the default values.

• Clear the system password.

• Recover from a corrupted BIOS during a BIOS upgrade.

• Write Protect Boot Block.

• Enable/Disable FRB timer.

• Bypass the chassis intrusion detection.

CAUTION!

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 first.

Jumper Settings

Each set of 3 pins requires one jumper, and has two options. The following figure

shows the position of the jumpers on the motherboard, and also the standard

position of the jumpers (two white pins).

Figure 3

CAUTION!

Do not move the jumper with the power on. Always turn off the power and

unplug the power cord from the computer before changing the jumper

Pri.

Sec.

BMC Forced

Update mode

Chassis Intrusion

Detection

FRB Timer

J2J1

J3J2

CMOS clear

Password

Clear

Recovery Boot

Boot block

write protect

Table 3 Configuration Jumper Settings

Function Jumper

J2J1

(Default

options in bold)

Configuration

Clear CMOS 1-2 Preserve contents of NVRAM.

2-3 Replace contents of NVRAM with default

settings.

Clear system

password.

5-6 Maintain current system password.

6-7 Clear password

Recover from

corrupted

BIOS

9-10 System boots using BIOS stored in the flash

memory.

10-11 BIOS attempts to load BIOS code from a floppy

into the flash memory. Typically used when

BIOS code has been corrupted.

Write Protect

Boot Block

13-14 BIOS boot block is write protected.

14-15 BIOS boot block is erasable and

programmable.

CAUTION:

Programming the boot block incorrectly will prevent

the system from booting

Function Jumper

J3J2

(Default

options in bold)

Configuration

FRB timer. 1-2 FRB operation is enabled (system will boot

from processor 1 if processor 0 fails).

2-3 FRB is disabled.

Chassis

intrusion

detection.

5-6 Switch installed on chassis indicates when the

cover has been removed.

6-7 Chassis switch is bypassed.

Motherboard Connectors

There are connectors on the motherboard for Floppy drives, IDE devices, Fans,

Power, Serial Port’s, SCSI, and Front Panel Connectors. The location and/or details

of these connections are shown below.

Fig 4 Motherboard connectors.

331

Fan

Connector

ATX power

Floppy

Drive

connector

CPU Fan

Connector

210

COM port B

Header

Main power

SCA SCSI connector

391

40202

PCI IDE Connector x2

Server Monitor

Module Connection

1 2

USB port

Header

5026

Narrow SCSI connector

Chassis

Intrusion

Header

Front Panel I/O

Connector Header

Reset

Pwr LED

HD LED

Pwr On

SPK

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.

Fig 4.1 Front panel connectors.

Reset - Reset switch connector

When these pins are shorted, it will cause the computer to perform a cold reboot.

PWR LED - 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.

SPK – PC speaker Connector

Not used. On-board speaker is present.

HD LED - 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.

PWR on - Remote On/Off

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

Front Panel I/O Connector Header

Reset Pwr LED HD LED

Pwr On

SPK

Page is loading ...

Viglen N440BX User manual

Brand: Viglen

Model: N440BX

Category: Server/workstation motherboards

Type: User manual

Download PDF

report

Viglen N440BX User manual

Viglen N440BX User manual

Related papers

Other documents