Gigabyte 6BXU User Manual

Table of Contents

1

TABLE OF CONTENTS

1. INTRODUCTION

1.1. PREFACE.............................................................................................................1-1

1.2. KEY FEATURES..................................................................................................1-1

1.3. PERFORMANCE LIST.........................................................................................1-2

1.4. BLOCK DIAGRAM ...............................................................................................1-3

1.5. INTRODUCE THE Pentium II Processor..........................................................1-4

1.6. What is AGP? .......................................................................................................1-6

2. SPECIFICATION

2.1. HARDWARE........................................................................................................2-1

2.2. SOFTWARE.........................................................................................................2-2

2.3. ENVIRONMENT...................................................................................................2-2

3. HARDWARE INSTALLATION

3.1. UNPACKING........................................................................................................3-1

3.2. MAINBOARD LAYOUT........................................................................................3-1

3.3. QUICK REFERENCE FOR JUMPERS & CONNECTORS ................................3-2

3.4. DRAM INSTALLATION........................................................................................3-5

3.5. CPU SPEED SETUP ...........................................................................................3-6

3.6. CMOS RTC & ISA CFG CMOS SRAM................................................................3-7

3.7. SPEAKER CONNECTOR INSTALLATION ........................................................3-7

3.8. HARDWARE RESET SWITCH CONNECTOR INSTALLATION.......................3-7

3.9. POWER LED CONNECTOR INSTALLATION ...................................................3-7

6BXU

2

3.10. IDE & ATAPI DEVICE INSTALLATION.............................................................3-7

3.11. PERIPHERAL DEVICE INSTALLATION...........................................................3-7

3.12. KEYBOARD & PS/2 MOUSE INSTALLATION..................................................3-8

3.13. SCSI DEVICE INSTALLATION .........................................................................3-8

4. BIOS CONFIGURATION

4.1. ENTERING SETUP .............................................................................................4-1

4.2. CONTROL KEYS.................................................................................................4-1

4.3. GETTING HELP...................................................................................................4-2

4.3.1. Main Menu................................................................................................4-2

4.3.2. Status Page Setup Menu / Option Page Setup Menu...............................4-2

4.4. THE MAIN MENU.................................................................................................4-2

4.5. STANDARD CMOS SETUP MENU ....................................................................4-4

4.6. BIOS FEATURES SETUP...................................................................................4-8

4.7. CHIPSET FEATURES SETUP............................................................................4-13

4.8. POWER MANAGEMENT SETUP.......................................................................4-17

4.9. PNP/PCI CONFIGURATION...............................................................................4-21

4.10. LOAD BIOS DEFAULTS....................................................................................4-23

4.11. LOAD PERFORMANCE DEFAULTS................................................................4-24

4.12. INTEGRATED PERIPHERALS. ........................................................................4-25

4.13. SUPERVISOR PASSWORD/USER PASSWORD...........................................4-30

4.14. IDE HDD AUTO DETECTION...........................................................................4-31

4.15. SAVE & EXIT SETUP........................................................................................4-32

4.16. EXIT WITHOUT SAVING..................................................................................4-33

Introduction

1-1

1. INTRODUCTION

1.1. PREFACE

Welcome to use the 6BXU motherboard. It is a Pentium II Processor based
PC / AT compatible system with AGP / PCI / SCSI / ISA Bus, and has been
designed to be the fastest PC / AT system. There are some new features allow
you to operate the system with just the performance you want.

This manual also explains how to install the motherboard for operation, and
how to set up your CMOS CONFIGURATION with BIOS SETUP program.

1.2. KEY FEATURES

q Intel Pentium



II Processor based PC / AT compatible mainboard.

q Slot 1 supports Pentium



II processor running at 200-633 MHz.

q Intel 440BX chipset, Supports AGP / SDRAM / Ultra DMA/33 IDE / Wake on

LAN / Keyboard and PS/2 Mouse Power On / ACPI features.

q Supports Intel LDCM



Network Manageability.

q Supports 4xDIMMs using 3.3V SDRAM DIMM module.
q Supports 8 MB - 1 GB SDRAM memory on board.
q Supports ECC or Non-ECC type DRAM module.
q 1xAGP slot, 4xPCI Bus slots, 3xISA Bus slots.
q Supports 2 channels Ultra DMA/33 IDE ports for 4 IDE Devices.
q Supports both Ultra SCSI, Ultra Wide SCSI and Ultra II SCSI ports.
q Supports 2xCOM (16550), 1xLPT (EPP / ECP), 1x Floppy port.
q Supports 2xUSB ports, 1xPS/2 Mouse, 1xPS/2 Keyboard.
q Licensed AWARD BIOS, 2M bit FLASH RAM.
q 30.5 cm x 21 cm ATX SIZE form factor, 4 layers PCB.

6BXU

1-2

1.3. PERFORMANCE LIST

The following performance data list is the testing results of some popular
benchmark testing programs.

These data are just referred by users, and there is no responsibility for different
testing data values gotten by users. (The different Hardware & Software
configuration will result in different benchmark testing results.)

• CPU

Pentium II processor

• DRAM (32x4)MB SDRAM (SEC KM48S2020CT-G8)

• CACHE SIZE 512 KB included in CPU

• DISPLAY GA-601 AGP Display Card (4MB SGRAM)

• STORAGE Onboard Ultra Wide SCSI (IBM DRS-39130)

• O.S. Windows NT™ 4.0

• DRIVER Display Driver at 1024 x 768 x 256 colors x 75Hz.

Adaptec AIC-7890 SCSI Driver

Intel Pentium II

Processor

450MHz(100x4.5) 333MHz(66x5)

Winbench98

CPU mark32 1100 843
FPU Winmark 2290 1720
Business Disk 1930 1840

Hi-End Disk 4580 4460

Business Graphics 201 163

Hi-End Graphics 238 171

Winstone98

Business 36 30.8

Hi-End 39.4 32.8

Introduction

1-3

1.4. BLOCK DIAGRAM

48MHz

3.3V EDO/SDRAM
DIMM Sockets

14.318MHz

66 / 100

MHz

Ultra DMA/33

IDE Ports

IDE Bus

PCI Bus

ISA Bus

AGP Bus

LPT Port

Keyboard

Floppy Port

COM Ports

DRAM Bus

PS/2 Mouse

USB Bus

USB Ports

14.318MHz

48MHz

14.318MHz

I/O

CHIPSET

83977TF

SLOT1

Host Bus

INTEL

82443BX

CHIPSET

Clock Gen
Buffer

PIIX4

82371EB

CHIPSET

Clock Gen

AGP

66MHz

66/100

MHz

66/100

MHz

66/100MHz

33

MHz

PCI Bus

40MHz

OSC

SCSI

CHIPSET

AIC-7890P

Ultra SCSI Port

Ultra Wide SCSI

INT. LVD

EXT. LVD

6BXU

1-4

1.5. INTRODUCE THE Pentium II Processor & AGP

Figure 1:Retention Mechanism & attach Mount

Figure 2:OEM Pentium II Processor

Introduction

1-5

Figure 3:Heatsink / FAN & Heat sink support for OEM Pentium II Processor

Figure 4:Boxed Pentium II Processor & Heat sink support

6BXU

1-6

1.6 What is AGP

?

The Accelerated Graphics Port (AGP) is a new port on the Host-To-PCI bridge
device that supports an AGP port. The main purpose of the AGP port is to
provide fast access to system memory.

The AGP port can be used either as fast PCI port (32-bits at 66MHz vs. 32-bits
at 33MHz) or as an AGP port which supports 2x data-rate, a read queue, and
side band addressing. When the 2x-data rate is used the port can transmit data
at 533MB/sec (66.6*2*4). The read-queue can be used to pipeline reads –
removing the effects of the reads-latency. Side band addressing can be used to
transmit the data address on a separate line in order to speed up the
transaction.

Specification

2-1

2. SPECIFICATION

2.1. HARDWARE

• CPU

− Pentium



II processor 200 – 633 MHz.

− 242 pins 66/100MHz slot1 on board.

• PROTECTION

− Speaker Alarm when detect "CPU FAN Failure" or

“CPU Overheat” .

− Automatically slow down CPU speed when "CPU

Overheat".

− Intel LDCM



supported.

− H/W monitor power status (±5V, ±12V, 5V

SB,VGTL , CPU voltage & CMOS battery
voltage).(Optional)

• SPEED

− 66/100 MHz system speed.

− 66 MHz AGP bus speed. (2X mode 133MHz)

− 33 MHz PCI-Bus speed.

− 8 MHz AT bus speed.

• DRAM MEMORY

− 4 banks 168 pins DIMM module sockets on board.

− Use 8 / 16 / 32 / 64 / 128 / 256 MB DIMM module

DRAM.

− 8 ~ 1 GB SDRAM.

− Supports 3.3V SDRAM.

− Supports ECC or Non-ECC type DRAM.

• CACHE MEMORY

− 32 KB 1st cache memory included in CPU.

− 256KB/512 KB 2nd cache in CPU.

− Supports DIB speed mode for L2 Cache.

• I/O BUS SLOTS

− 4 33MHz Master / Slave PCI-BUS.

− 3 8MHz 16 bits ISA BUS.

− 1 66MHz / 133MHz AGP bus.

• IDE PORTS

− 2 Ultra DMA/33 Bus Master IDE channels on

board.(Using IRQ14,15)

6BXU

2-2

− Support Mode 3,4 IDE & ATAPI CD – ROM.

• SCSI PORTS

− Supports 1 Ultra Wide SCSI port.

− Supports 1 Ultra SCSI port.

− Supports 2 Ultra II SCSI port.

• I/O PORTS

− Supports 2 16550 COM ports.

− Supports 1 EPP/ECP LPT port.

− Supports 1 Floppy port.

− Supports 2 USB ports.

− Supports PS/2 Mouse & Keyboard.

• GREEN FUNCTION

− Suspend mode support.

− Green switch & ACPI LED support.

− IDE & Display power down support.

− Monitor all IRQ / DMA / Display / I/O events.

• BIOS

− 2M bits FLASH RAM.

− Supports Plug & Play, DMI Function.

• DIMENSION

− ATX Form Factor, 4 layers PCB.

2.2. SOFTWARE

• DRIVER

− Intel LDCM



(optional.)

− Health monitor Utility.

− Bus Master IDE Driver.

− Adaptec SCSI Driver.

• BIOS − Licensed AWARD BIOS.

− AT CMOS Setup, BIOS / Chipset Setup, Green

Setup, Hard Disk Utility included.

− Monitor Health status.

• O.S.

− Operation with MS-DOS



, Windows95,

WINDOWS NT, OS/2, NOVELL and SCO UNIX.

2.3. ENVIRONMENT

• Ambient Temp.

− 0°C to +50°C (Operating).

• Relative Hum. − 0 to +85% (Operating).

• Altitude − 0 to 10,000 feet (Operating).

• Vibration − 0 to 1,000 Hz.

Specification

2-3

• Electricity − 4.9 V to 5.2 V. (Max. 20A current at 5V.)

Hardware Installation

3-1

3. HARDWARE INSTALLATION

3.1. UNPACKING

The mainboard package should contain the following:

• The 6BXU mainboard.

• The Retention Mechanism & Attach Mount

• USER'S MANUALS for mainboard & SCSI device.

• Cable set for IDE, Floppy, SCSI & I/O devices.

• Diskettes and CD for Mainboard Utility.

• External LVD port adapter.

The mainboard contains sensitive electric components, which can be easily
damaged by static electricity, so the mainboard should be left in its original
packing until it is installed.

Unpacking and installation should be done on a grounded anti-static mat. The
operator should be wearing an anti static wristband, grounded at the same
point as the anti-static mat.

Inspect the mainboard carton for obvious damage. Shipping and handling may
cause damage to your board. Be sure there are no shipping and handling
damages on the board before proceeding.

After opening the mainboard carton, extract the system board and place it only
on a grounded anti-static surface component side up. Again inspect the board
for damage. Press down on all of the socket IC's to make sure that they are
properly seated. Do this only on with the board placed on a firm flat surface.

M

DO NOT APPLY POWER TO THE BOARD IF IT HAS BEEN DAMAGED.

3.2. MAINBOARD LAYOUT

6BXU

3-2

6BXU

BIOS

INTEL

443BX

PIIX4

Adaptec

AIC-7890

Slot 1

SW

ATX Power

PS/2

USB

COMA

COMB

LPT

JP1

CPU

FAN

JP5

BANK 0
BANK 1
BANK 2
BANK 3

DIMM 1
DIMM 2
DIMM 3
DIMM 4

IDE 1

IDE 2

FLOPPY

Ultra SCSI
Ultra Wide SCSI

Ultra II SCSI

BAT 1

JP10

IR

J13

AGP

PCI 1PCI 2PCI 3PCI 4

ISA 1ISA 2ISA 3

JP7

SB

-LINK

JP8

PWR

FAN

Panel

FAN

JP4

J14

×Figure 3.1Ø

3.3. QUICK REFERENCE FOR JUMPERS & CONNECTORS

t I/O Ports Connector

USB USB port.
Ultra SCSI Ultra SCSI port
Ultra Wide SCSI Ultra Wide SCSI port
Ultra II SCSI Ultra II SCSI port
IDE1 For Primary IDE port.
IDE2 For Secondary IDE port.
PS/2 For PS/2 Keyboard/Mouse port.
Floppy For Floppy port
COM B For Serial port2 (COM B).
COM A For Serial port1 (COM A).
LPT For LPT port.

t Slot 1

For Pentium II processor installed

t IR : INFRARED Connector (IR) -- Function Option

Pin No. Function

Hardware Installation

3-3

1 IR Data Output
2 GND
3 IR Data Input
4 Signal
5 POWER (+)

t CPU FAN : CPU cooling FAN Power Connector

Pin No. Function

1 GND.
2 +12V
3 SENSE

t PWR FAN : Power FAN Connector

Pin No. Function

1 GND.
2 +12V
3 SENSE

t Panel FAN : Panel FAN Connector

Pin No. Function

1 GND.
2 +12V
3 SENSE

t J13 : System Power On After Ac Back

Pin No. Function

1 Signal
2 GND

t JP1 : Keyboard Power On Selection

Pin No. Function

1-2 Enabled Keyboard Power On
2-3 Disabled Keyboard Power On

t JP7:SB-LINK For PCI Audio / Sound Card use only

Pin No. Function

6BXU

3-4

1 Signal
2 GND
3 NC
4 Signal
5 GND
6 Signal

t JP8 : Wake on LAN

Pin No. Function

1 +5V SB
2 GND
3 Signal

t J14 : Case Open(Please remove shunted jumper before use.)

Pin No. Function

1 Signal
2 GND

JP10 : 2*11 PIN Jumper

PW: Soft Power Connector

Open: Normal Operation
Short: Power On/Off

RE: Reset Switch

Open: Normal Operation
Short: For Hardware Reset System

P+P-P-: Power LED

PIN 1 : anode (+)

PW

P+P-P-

H+

RE

SPKR

GN

G−

JP10

1

1 1

1

H−

G+

GN

1

Hardware Installation

3-5

PIN 2 : cathode (−)
PIN 3 : cathode (−)

SPKR : Speaker Connector

PIN 1 : VCC
PIN 2 : NC
PIN 3 : NC
PIN 4 : Data

H+H−: IDE Hard Disk Active LED

PIN 1: LED anode (+)

PIN 2: LED cathode (−)

GN: Green Function Switch

Open : Normal operation
Short : Entering Green Mode

G−G+: Green LED

PIN 1 : LED anode (+)
PIN 2 : LED cathode (−)

3.4. DRAM INSTALLATION

The mainboard can be installed with 8 / 16 / 32 / 64 / 128 / 256 MB 168 pins
DIMM module DRAM, and the DRAM speed must be 50 or 60 ns for EDO &
67~100 MHz for SDRAM. The DRAM memory system on mainboard consists
of bank 0, 1, 2 & bank 3.

Since 168 pins DIMM module is 64 bits width, using 1 PCS which can match a
64 bits system. The total memory size is 8 MB ~ 1 GB EDO or SDRAM. The
DRAM installation position refer to Figure 3.1, and notice the Pin 1 of DIMM
module must match with the Pin 1 of DIMM socket. Insert the DRAM DIMM
module into the DIMM socket at Vertical angle. If there is a wrong direction of
Pin 1, the DRAM DIMM module couldn't be inserted into socket completely.

3.5. CPU SPEED SETUP

1

1

−

1

+

6BXU

3-6

The system bus speed can be set to 66MHz or 100MHz form the jumper (JP5).
The user can change the DIP SWITCH (SW) selection to set up the CPU speed
for different processors. The CPU speed must match with the frequency
RATIO and Front Side Bus (FSB) speed. It will cause system hanging up if the
frequency RATIO and FSB Speed do not match with the CPU.

MJP5 (Select the system speed between 66 Hz and 100MHz)
1-2 Close Set system speed to 66MHz

−

system always

run at 66MHz FSB (Front Side Bus).

2-3 Close Set system speed to Auto

−

auto detect system

speed (66/ 100MHz FSB)

1-2-3 Open Set system speed to 100MHz

−

system always

run at 100MHz FSB (Front Side Bus).

DIP SWITCH (SW)

1 2 3 4

FREQ.
RATIO

EXT.CLK.

MHz

INT.CLK.

MHz

CPU Type

OFF OFF ON ON 3.5 66 233 Pentium



II 233 MHz

ON ON OFF ON 4 66 266 Pentium



II 266 MHz

OFF ON OFF ON 4.5 66 300 Pentium



II 300 MHz

ON OFF OFF ON 5 66 333 Pentium



II 333 MHz

OFF OFF OFF ON 5.5 66 366 Pentium



II 366 MHz

ON OFF ON ON 3 100 300 Pentium



II 300 MHz

OFF OFF ON ON 3.5 100 350 Pentium



II 350 MHz

ON ON OFF ON 4 100 400 Pentium



II 400 MHz

OFF ON OFF ON 4.5 100 450 Pentium



II 450 MHz

ON OFF OFF ON 5 100 500 Pentium



II 500 MHz

OFF OFF OFF ON 5.5

100

550

Pentium II 550 MHz

M

The CPU is a sensitive electric component and it can be easily
damaged by static electricity, so users must keep it away from metal
surface when the CPU is installed onto main board.

3.6. CMOS RTC & ISA CFG CMOS SRAM

1 2 3

1 2 3

1 2 3

Hardware Installation

3-7

There're RTC & CMOS SRAM on board; they have a power supply from
external battery to keep the DATA inviolate & effective. The RTC is a REAL­TIME CLOCK device, which provides the DATE & TIME to system. The CMOS
SRAM is used for keeping the information of system configuration, so the
system can automatically boot OS every time. Since the lifetime of internal
battery is 5 years, the user can change a new Battery to replace old one after it
cannot work.

3.7. SPEAKER CONNECTOR INSTALLATION

There is a speaker in AT system for sound purpose. The 4 - Pins connector

SPKR is used to connect speaker. Anode connects +, Cathode connects −.

3.8. HARDWARE RESET SWITCH CONNECTOR INSTALLATION

The RESET switch on panel provides users with HARDWARE RESET function.
The system will do a cold start after the RESET switch is pushed and released
by user. The RESET switch is a 2 PIN connector and should be installed to RE
on mainboard.

3.9. POWER LED CONNECTOR INSTALLATION

System has power LED lamp on the panel of case. The power LED will light on
off or flash to indicate which step on the system. The connector should be
connected to PWR of mainboard in correct direction.

3.10. IDE & ATAPI DEVICE INSTALLATION

There are two-Enhanced PCI IDE ports (IDE1, IDE2) on board, which following
ATAPI standard SPEC. Any one IDE port can connected to two ATAPI devices
(IDE Hard Disk, CD-ROM & Tape Driver), so total four ATAPI devices can exist
in a system. The HD is the active LED port for ATAPI devices.

3.11. PERIPHERAL DEVICE INSTALLATION

After the I/O device installation and jumpers setup, the mainboard can be
mounted into the case and fixed by screw. To complete the mainboard
installation, the peripheral device could be installed now. The basic system
needs a display interface card. If the PCI - Bus device is to be installed in the
system, any one of four PCI - Bus slots can be used.

3.12. KEYBOARD & PS/2 MOUSE INSTALLATION

6BXU

3-8

The main board supports PS/2 Mouse (J1). The BIOS will auto detect whether
the PS/2 Mouse is installed or not & assign IRQ12 for PS/2 Mouse port if it is
installed. After installing the peripheral device, the user should check
everything again, and prepare to power-on the system.

3.13. SCSI DEVICE INSTALLATION

There are four SCSI ports on board, One is 8bit SCSI port for ULTRA SCSI
device, the other one for Ultra wide SCSI , another is for Ultra II SCSI. And total
15 SCSI devices can exist in a system.
Single Ended and LVD Terminator Control are controlled by BIOS Setup (In the
INTEGRATED PERIPHERALS Setup page.)

Terminator ON/OFF rules

State 1. Ultra or Ultra wide SCSI Devices connecting to SE Port :

CASE 1: Single Ended Termination: Both
LVD Terminator Control : Enabled

1

System has 16 bit SCSI

Mainboard

SCSI DEVICE

SCSI DEVICE

Terminator ON

Terminator OFF

Terminator ON

16 bit

16 bit

SE

15

System has only 8 bit SCSI device

Mainboard

Terminator ON

Terminator OFF

Terminator ON

SCSI DEVICE SCSI DEVICE

8 bit 8 bit

SE

7

2

Hardware Installation

3-9

Mainboard

EXT.
8 bit SCSI
DEVICE

8 bit SCSI
Terminator

EXT. 50pin SCSI port

Terminator ON

Terminator ON

System has EXT. SCSI port but has not INT. SCSI device

EXT. SCSI port

SE

3

CASE 2: Single Ended Termination: High Byte
LVD Terminator Control : Enabled

16 bit

SCSI DEVICE

High byte Terminator ON

Terminator OFFTerminator ON

System has 16 bit & 8 bit SCSI device

Mainboard

16 bit

SCSI DEVICE

8 bit

SCSI DEVICE

8 bit

SCSI DEVICE

Terminator OFF Terminator ON

SE

7

8

1

Mainboard

EXT.
8 bit SCSI
DEVICE

16 bit

SCSI DEVICE SCSI DEVICE

High byte Terminator ON

8 bit SCSI
Terminator

EXT. 50pin SCSI port

Terminator ON

Terminator OFF Terminator ON

16 bit

System has 8 bit EXT. SCSI port & 16 bit INT. SCSI device

SE

14

2

To boot from EXT.SCSI device,
please press <Ctrl> <A> for
SCSISelect Utility and set the

Advanced configuration
option/ Support Removable
Disks Under BIOS as Fixed
Disks to “All Disks”.

6BXU

3-10

State 2. LVD (Ultra II)SCSI Devices connecting to LVD Channel :

CASE 1: Single Ended Termination : Both
LVD Terminator Control : Enabled

Mainboard

SCSI DEVICE SCSI DEVICE

LVD

Terminator ON

LVD LVD

LVD

15

LVD

Terminator ON

1

Mainboard

EXT.
LVD SCSI
DEVICE

EXT. LVD SCSI

Terminator

EXT LVD SCSI Port

LVD

2

CASE 2: Single Ended Termination : Both
LVD Terminator Control : Disabled

1

LVD

SCSI DEVICE

LVD Terminator Disable

Mainboard

LVD

SCSI DEVICE

LVD

8

LVD

SCSI DEVICE

LVD

SCSI DEVICE

LVD

Terminator ON

7

LVD Terminator ON

To boot from EXT.SCSI device,
please press <Ctrl> <A> for
SCSISelect Utility and set the

Advanced configuration
option/ Support Removable
Disks Under BIOS as Fixed
Disks to “All Disks”.

Hardware Installation

3-11

Mainboard

EXT.
LVD SCSI

DEVICE

LVD Terminator Disable

LVD SCSI
Terminator

EXT LVD SCSI Port

LVD

LVD

SCSI DEVICE

LVD

SCSI DEVICE

LVD

Terminator ON

14

2

State 3. Ultra or Ultra wide Device connecting to SE port
LVD (Ultra II) device connecting to LVD port

CASE 1: Single Ended Termination : Both
LVD Terminator Control : Enabled

System has 16 bit SCSI

Mainboard

SCSI DEVICE

SCSI DEVICE

Terminator ON Terminator OFF Terminator ON

16 bit

16 bit

SE

7

Mainboard

SCSI DEVICE SCSI DEVICE

LVD

Terminator ON

LVD Terminator ON

LVD LVD

LVD

8

1

6BXU

3-12

Mainboard

SCSI DEVICE SCSI DEVICE

LVD Terminator ON

LVD Terminator ON

LVD LVD

LVD

8

System has only 8 bit SCSI device

Mainboard

Terminator ON Terminator OFF Terminator ON

SCSI DEVICE SCSI DEVICE

8 bit 8 bit

SE

7

2

Mainboard

SCSI DEVICE SCSI DEVICE

LVD Terminator ON

LVD Terminator ON

LVD LVD

LVD

14

Mainboard

EXT.
8 bit SCSI
DEVICE

8 bit SCSI
Terminator

EXT. 50pin SCSI port

Terminator ON Terminator ON

System has EXT. SCSI port but has not INT. SCSI device

EXT. SCSI port

SE

3

To boot from EXT.SCSI device,
please press <Ctrl> <A> for
SCSISelect Utility and set the

Advanced configuration
option/ Support Removable
Disks Under BIOS as Fixed
Disks to “All Disks”.

Hardware Installation

3-13

Mainboard

EXT.
LVD
DEVICE

EXT. LVD SCSI port

Terminator ON Terminator ON

System has EXT. SCSI port but has not INT. SCSI device

EXT. SCSI port

LVD

Mainboard

SCSI DEVICE SCSI DEVICE

Terminator ON

Terminator ON

16 bit 16 bit

SE

14

Terminator OFF

EXT. LVD SCSI
Terminator

4

CASE 2: Single Ended Termination : High Byte
LVD Terminator Control : Enabled

To boot from EXT.SCSI device,
please press <Ctrl> <A> for
SCSISelect Utility and set the

Advanced configuration
option/ Support Removable
Disks Under BIOS as Fixed
Disks to “All Disks”.

6BXU

3-14

Mainboard

SCSI DEVICE SCSI DEVICE

LVD Terminator ON

LVD

Terminator ON

LVD LVD

LVD

8

16 bit

SCSI DEVICE

High byte Terminator ON

Terminator OFFTerminator ON

System has 16 bit & 8 bit SCSI device

Mainboard

16 bit

SCSI DEVICE

8 bit

SCSI DEVICE

8 bit

SCSI DEVICE

Terminator OFF Terminator ON

SE

3

4

1

Mainboard

SCSI DEVICE SCSI DEVICE

LVD

Terminator ON

LVD Terminator ON

LVD LVD

LVD

8

Mainboard

EXT.
8 bit SCSI
DEVICE

16 bit

SCSI DEVICE SCSI DEVICE

High byte Terminator ON

8 bit SCSI
Terminator

EXT. 50pin SCSI port

Terminator ON

Terminator OFF Terminator ON

16 bit

System has 8 bit EXT. SCSI port & 16 bit INT. SCSI device

SE

6

2

Hardware Installation

3-15

Mainboard

EXT.
LVD
DEVICE

EXT. LVD SCSI port

Terminator ON Terminator ON

System has EXT. SCSI port but has not INT. SCSI device

EXT. SCSI port

LVD

Mainboard

EXT.

8 bit SCSI

DEVICE

16 bit

SCSI DEVICE SCSI DEVICE

High byte Terminator ON

8 bit SCSI
Terminator

EXT. 50pin SCSI port

Terminator ON

Terminator OFF Terminator ON

16 bit

System has 8 bit EXT. SCSI port & 16 bit INT. SCSI device

SE

13

EXT. LVD
SCSI
Terminator

3

CASE 3: Single Ended Termination : Both
LVD Terminator Control : Disable

LVD

SCSI DEVICE

LVD Terminator Disable

LVD Terminator ON

Mainboard

LVD

SCSI DEVICE

LVD

SCSI DEVICE

LVD

SCSI DEVICE

LVD Terminator ON

LVD

4 4

System has 16 bit SCSI

Mainboard

SCSI DEVICE

SCSI DEVICE

Terminator ON Terminator OFF Terminator ON

16 bit

16 bit

SE

7

1

To boot from EXT.SCSI device,
please press <Ctrl> <A> for
SCSISelect Utility and set the

Advanced configuration
option/ Support Removable
Disks Under BIOS as Fixed
Disks to “All Disks”.

6BXU

3-16

System has only 8 bit SCSI device

Mainboard

Terminator ON Terminator OFF Terminator ON

SCSI DEVICE SCSI DEVICE

8 bit 8 bit

SE

7

LVD

SCSI DEVICE

LVD Terminator Disable

LVD Terminator ON

Mainboard

LVD

SCSI DEVICE

LVD

SCSI DEVICE

LVD

SCSI DEVICE

LVD Terminator ON

LVD

4 4

2

Mainboard

EXT.
8 bit SCSI
DEVICE

8 bit SCSI
Terminator

EXT. 50pin SCSI port

Terminator ON Terminator ON

System has EXT. SCSI port but has not INT. SCSI device

EXT. SCSI port

SE

LVD

SCSI DEVICE

LVD Terminator Disable

LVD Terminator ON

Mainboard

LVD

SCSI DEVICE

LVD

SCSI DEVICE

LVD

SCSI DEVICE

LVD Terminator ON

LVD

7 7

3

To boot from EXT.SCSI device,
please press <Ctrl> <A> for
SCSISelect Utility and set the

Advanced configuration
option/ Support Removable
Disks Under BIOS as Fixed
Disks to “All Disks”.

Hardware Installation

3-17

Mainboard

EXT.
LVD SCSI

DEVICE

LVD Terminator Disable

LVD SCSI
Terminator

EXT LVD SCSI Port

LVD

LVD

SCSI DEVICE

LVD

SCSI DEVICE

LVD

Terminator ON

13

4

Mainboard

EXT.
8 bit SCSI
DEVICE

8 bit SCSI
Terminator

EXT. 50pin SCSI port

Terminator ON Terminator ON

System has EXT. SCSI port but has not INT. SCSI device

EXT. SCSI port

SE

CASE 4: Single Ended Termination : High Byte
LVD Terminator Control : Disable

LVD

SCSI DEVICE

LVD Terminator Disable

LVD Terminator ON

Mainboard

LVD

SCSI DEVICE

LVD

SCSI DEVICE

LVD

SCSI DEVICE

LVD Terminator ON

LVD

4 4

16 bit

SCSI DEVICE

High byte Terminator ON

Terminator OFFTerminator ON

System has 16 bit & 8 bit SCSI device

Mainboard

16 bit

SCSI DEVICE

8 bit

SCSI DEVICE

8 bit

SCSI DEVICE

Terminator OFF Terminator ON

SE

3

4

1

To boot from EXT.SCSI device,
please press <Ctrl> <A> for
SCSISelect Utility and set the

Advanced configuration
option/ Support Removable
Disks Under BIOS as Fixed
Disks to “All Disks”.

6BXU

3-18

Mainboard

EXT.
8 bit SCSI
DEVICE

16 bit

SCSI DEVICE SCSI DEVICE

High byte Terminator ON

8 bit SCSI
Terminator

EXT. 50pin SCSI port

Terminator ON

Terminator OFF Terminator ON

16 bit

System has 8 bit EXT. SCSI port & 16 bit INT. SCSI device

SE

6

LVD

SCSI DEVICE

LVD Terminator Disable

LVD Terminator ON

Mainboard

LVD

SCSI DEVICE

LVD

SCSI DEVICE

LVD

SCSI DEVICE

LVD Terminator ON

LVD

4 4

2

Mainboard

EXT.
LVD SCSI
DEVICE

LVD Terminator Disable

EXT. LVD SCSI
Terminator

EXT LVD SCSI Port

LVD

LVD

SCSI DEVICE

LVD

SCSI DEVICE

LVD Terminator ON

7

Mainboard

EXT.
8 bit SCSI
DEVICE

16 bit

SCSI DEVICE SCSI DEVICE

High byte Terminator ON

8 bit SCSI
Terminator

EXT. 50pin SCSI port

Terminator ON

Terminator OFF Terminator ON

16 bit

System has 8 bit EXT. SCSI port & 16 bit INT. SCSI device

SE

6

3

Hardware Installation

3-19

Adaptec 78xx Family Driver Installation for Windows NT CDROM
Boot

Installing Windows NT V4.0

The following instructions explain how to install the Adaptec 7800
Family Manager, while installing Windows NT V4.0 from CDROM Boot.

1. Start your system with the Windows NT Boot CD in the CDROM
drive.

2. During the initial stages of the boot process as soon as you see
blue screen of "Windows NT Setup" then press F6.

3. Press S again to specify an additional device.

4. Select "Other" and feed it the Adaptec 7800 Family Manager
diskette for WinNT 3.5x, 4.0/d2.11 then press Enter.

5. For Ultra2 host adapters(AIC-7890/AIC-7896), Select the
"Adaptec AHA-294xU2/295xU2/AIC-789X PCI Ultra2 SCSI
Controller(NT 4.0)" and press ENTER.

6. Then follow the normal Windows NT installation procedure to
complete the setup processor.