Abit AB-BH6 User manual

Copyright and Warranty Notice
The information in this document is subject to change without notice and does
not represent a commitment on part of the vendor, who assumes no liability or
responsibility for any errors that may appear in this manual.
No warranty or representation, either expressed or implied, is made with
respect to the quality, accuracy or fitness for any particular part of this
document. In no event shall the manufacturer be liable for direct, indirect,
special, incidental or consequential damages arising from any defect or error
in this manual or product.
Product names appearing in this manual are for identification purpose only
and trademarks and product names or brand names appearing in this
document are property of their respective owners.
This document contains materials protected under International Copyright
Laws. All rights reserved. No part of this manual may be reproduced,
transmitted or transcribed without the expressed written permission of the
manufacturer and authors of this manual.
If you do not properly set the motherboard settings causing the motherboard
to malfunction or fail, we cannot guarantee any responsibility.

Part No: MN-130-2A6-61 Rev:1.06
BH6 Motherboard
USER’S MANUAL
Table of Contents
Chapter 1 Introduction of BH6 Features
(1) Specifications 1-1
 Layout diagram 1-3
 The system block diagram 1-4
Chapter 2 Installing the Motherboard
 Installing the Motherboard to the Casing 2-2
 Standard External Connectors 2-4
 Jumper and Switches 2-9
(4) Installation of the PentiumII/III, Celeron™CPU 2-10
(5) Installing System Memory 2-11
Chapter 3 Introduction of BIOS
(1) CPU Setup 3-3
(2) Standard CMOS Setup Menu 3-8
(3) BIOS Features Setup Menu 3-11
(4) Chipset Features Setup Menu 3-17
(5) Power Management Setup Menu 3-21
(6) PNP/PCI Configuration 3-28
(7) Load Setup Defaults 3-30
(8) Integrated Peripherals 3-31
(9) Password Setting 3-35
(10) IDE Hard Disk Detection 3-35
(11) Save & Exit Setup 3-36
(12) Exit Without Saving 3-36

Appendix A Quick Installation
Appendix B General Discussion About HDD Installation
Appendix C Flash BIOS User Instructions
Appendix D How to install the IDE Bus Master driver
Appendix E How to install the PCI bridge driver for 440BX chipset
Appendix F Install HighPoint XStore Pro Utility
Appendix G Technical Support

IntroductionOfBH6Features 1-1
Chapter 1 Introduction Of BH6 Features
The motherboard is designed for a new generation CPUs. It supports the Intel SLOT1
structure (PentiumII/III and Celeron™ processors), up to 768MB of memory, super I/O,
and Green PC functions. The motherboard provides high performance for server
systems and meets the requirements for desktop system for multimedia in the future.
(1) Specifications
1. CPU
!CPU SOFT MENU™ II eliminates the need for jumpers or DIP switches
needed to set CPU parameters
!Employs switching type regulators to stabilize CPU operation
!Supports 66 and 100MHz MHz CPU external clock speeds
!Supports Intel®Pentium®III 450 ~ 500MHz processor cartridge (Based on
100MHz)
!Supports Intel®Pentium®II 350 ~ 450MHz processor cartridge (Based on
100MHz) and Pentium®II 233 ~ 333MHz processor cartridge (Based on
66MHz)
!Supports Intel®Celeron™ 266MHz~466MHz processor (Based on 66MHz)
2. Chipset
!Intel®440BX chipset (82443BX and 82371EB)
!Supports Ultra DMA/33 IDE protocol
!Supports Advanced Configuration and Power Management Interface(ACPI)
!Accelerated Graphics Port connector supports AGP 1x and 2x mode (Sideband)
3.3V device
3. Cache Memory
!Level 1 and Level 2 cache built into Intel®Pentium®II/III processor cartridge
!Level 1 cache (without L2 cache) built into Intel®Celeron™processor"
4. Memory (DRAM)
!Three 168-pin DIMM sockets support SDRAM modules
!Supports up to 768MB#
!ECC support
5. System BIOS
!AWARD BIOS
!Supports Plug-and-Play (PnP)
!Supports Advanced Configuration Power Interface (ACPI)
!Supports Desktop Management Interface (DMI)
!Year 2000 compliant

1-2 Chapter 1


Multi I/O Functions
!!Floppy port supports up to 2.88MB, and 3 mode floppies
!!Ultra DMA/33 bus master IDE supports up to 4 IDE devices
(Including LS-120 MB floppy drive)
!!Built-in Standard/EPP/ECP parallel port connector
!!Two built-in 16550 fast UART compatible serial port connectors
!!Built-in PS/2 keyboard and PS/2 mouse port connectors
!Built-in standard IrDA TX/RX header
!!Two built-in USB connectors


Miscellaneous
!!ATX form factor
!!One AGP slot, Five PCI slots and Two ISA slots
!!Wake Up On LAN header
!!SB-LINK header
!Hardware monitoringIncluded fan speed, voltages, and system
environment temperature
!!Board size: 305 * 190mm
Note: All brand names and trademarks are the property of their respective owners.
"Only Celeron™300A and 333 or higher speed processors have built in Level 2 cache.
#This is the maximum memory size the Intel®440BX chipset supports it, also depends on the size of
memory module you can buy on the market.
$Above 66MHz/100MHz bus speed supported but not guaranteed due to the PCI and chipset specs.
$Sound Blaster™is a registered trademark of Creative Technology Ltd in the United States and certain
other countries. Sound Blaster-LINK™and SB-LINK™ are trademarks of Creative Technology Ltd.
$Specifications and information contained in this manual are subject to change without notice.

IntroductionOfBH6Features 1-3
(2) Layout Diagram
Figure 1-1 Motherboard Component Locations

1-4 Chapter 1
(3) The System Block Diagram

Installing the Motherboar 2-1
Chapter 2 Installing the Motherboard
This BH6 motherboard not only provides all standard equipment for classic
personal computers, but also provides great flexibility for meeting future
upgrade demands. This chapter will introduce step by step all the standard
equipment and will also present, as completely as possible, future upgrade
capabilities. This motherboard is able to support all IntelPentiumII/III
processors and IntelCeleron™processor now on the market. (For details, see
specifications in Chapter 1.)
This chapter is organized according the following features:
 Installing the Motherboard to the Casing
 Standard external connectors
 Jumpers and switches
(4) Installation of the PentiumII/III, Celeron™CPU
(5) Installing the system memory
%%%%
%%%%%%%%
%%%%
Before proceeding with the installation
Before installing the motherboard please be sure to turn off or disconnect the
power supply unit. Before making any modifications to the hardware
configuration of the motherboard, the power supply to any areas of the
motherboard you plan to modify should be turned off to avoid unnecessary
damage to the hardware.
&
&&
&
User friendly instructions
Our objective is to enable the novice computer user to perform the installation
by themselves. We have attempted to write this document in a very clear,
concise and descriptive manner to help overcome any obstacles you may face
during installation. Please read our instructions carefully and follow them
step-by-step.

2-2 Chapter 2


 Installing the Motherboard to the Casing
Most computer chassis will have a base on which there will be many mounting
holes that allows the motherboard to be securely attached and at the same time,
prevents short circuits.
There are two ways to attach the motherboard to the base of chassis:
!with stud
!or with spacer
Please refer the figure below show the studs and spacers, they may have several
types, but all look like the figure below:
In principle, the best way to attach the motherboard is with studs, and only if
you are unable to do this should you attach the board with spacers. Take a
careful look at the motherboard and you will see many mounting holes on it.
Line these holes up with the mounting holes on the base. If the holes line up,
and there are screw holes this means you can attach the motherboard with studs.
If the holes line up and there are only slots, this means you can only attach the
motherboard with spacers. Take the tip of the spacers and insert it into the slots.
After doing this to all the slots, you can slide the motherboard into position
aligned with the slots. After the motherboard has been positioned, check to
make sure everything is OK before putting the casing back on.
The figure below will show you the way to fix the motherboard using with the
stub and spacer:

Installing the Motherboar 2-3
Note: If the motherboard has mounting holes, but don’t line up with the holes
on the base and their are no slots to attach the spacers, don’t worry, you
can still attach the spacers to the mounting holes. Just cut the button
portion of spacers (the spacer may be a little and hard to cut off, so be
careful of your hands). In this way you can still attach the motherboard
to the base without worrying about short circuits.
Sometimes you may need to use the plastics spring for isolate the screw from
motherboard PCB surface, because the circuit wire may be near by the hole.
Be careful don’t let the screw to contact any printed circuit wire and parts on
PCB that near by the fixing hole, otherwise it may damage the board or cause
the board malfunction.

2-4 Chapter 2


 Standard External Connectors
Inside the case of any computer several cables and plugs have to be connected.
These cables and plugs are usually connected one-by-one to connectors located
on the motherboard. You need to carefully pay attention to any connection
orientation the cables may have and, if any, notice the position of the first pin of
the connector. In the explanations that follow, we will describe the significance
of the first pin.
PN1(Pin 1-2-3-4-5): Keylock and Power LED Header
There is a specific orientation for pin 1 through pin 5. Insert the two-threaded
keylock cable into pin 4 and pin 5, and three-threaded power LED cable to Pin
1~pin 3. Check to make sure the correct pins of connector on the motherboard.
Pin number Name or significance of signal Connector Name
1 +5VDC Power LED
2 No connection Power LED
3 Ground Power LED
4 Keyboard inhibit Signal Keylock
5 Ground Keylock
PN1(Pin 6-7): HDD LED Header
Attach the cable from the case’s HDD LED to this connector.
Pin number Name or significance of signal
6 LED power
7 HDD active

Installing the Motherboar 2-5
PN1 (Pin 8-9): Power Switch Header
Pin number Name or significance of signal
8 Ground
9 Power On/Off switch
PN1 (Pin 10-11): Hardware Suspend Switch (SMI Switch)
Header
Attach the cable from the case’s suspend switch (if there is one) to this switch.
Use this switch to enable/disable the power management function by hardware.
Pin number Name or significance of signal
10 +3V Standby
11 Suspend signal
Note: If you enable the ACPI function in the BIOS setup, this function will not
work.
PN2(Pin 1-2): Hardware Reset Header
Attach the cable from the case’s Reset switch to this connector. Press and
hold the reset button for at least one second to reset the system.
Pin number Name or significance of signal
1 Ground
2 Reset input
PN2(Pin 4-5-6-7): Speaker Header
Attach the system speaker to connector PN2.
Pin number Name or significance of signal
4 + 5VDC
5 Ground
6 Ground
7 Speaker data

2-6 Chapter 2
PN2(Pin 9-10): Suspend LED Header
Pin number Name or significance of signal
9 LED power
10 Suspend LED active
KM1 MOUSE: PS/2 Mouse Connector
Attach a PS/2 mouse to this 6-pin Din-connector.
Pin number Name or significance of signal
1 Mouse data
2 No connection
3 Ground
4 +5VDC
5 Mouse clock
6 No connection
KM1 KB: PS/2 Keyboard Connector
Attach a keyboard to this 6-pin Din-connector.
Pin number Name or significance of signal
1 Keyboard data
2 No connection
3 Ground
4 +5VDC
5 Keyboard clock
6 No connection

Installing the Motherboar 2-7
CONT1: ATX Power Input Connector
Attach the connectors from the power supply to CONT1.
Pin number Name or significance of signal
1 +3.3VDC
2 +3.3VDC
3 Ground
4 +5VDC
5 Ground
6 +5VDC
7 Ground
8 Power Good
9+5VSB
10 +12VDC
11 +3.3VDC
12 -12VDC
13 Ground
14 On/Off control signal
15 Ground
16 Ground
17 Ground
18 -5VDC
19 +5VDC
20 +5VDC
FAN1(CPU FAN), FAN2: DC Fan Power Header
Pin number Name of the signal or signification
1 Ground
2 +12V
3 Sense signal
Caution: If power supply connectors are not properly attached to ATX
PWR, the power supply or add-on cards may be damaged.

2-8 Chapter 2
IR1: IR Header (Infrared)
Pin number Name or significance of signal
1+5V
2 No connection
3 IR_RX
4 Ground
5IR_TX
I/O Port Connectors
Name Pin number Description
IDE1 40 IDE channel 1 connector
IDE2 40 IDE channel 2 connector
FDC 34 Floppy disk connector
LPT 25 Parallel port
COM1 9 Serial port COM1 connector
COM2 9 Serial port COM2 connector
USB 8 Universal serial Bus
Notes: *IDE1, IDE2 are high performance PCI IDE connectors. Up to four IDE
interface devices are supported.
WOL1: Wake On LAN Header
Pin number Name or significance of signal
1+5VSB
2 GND
3 Sense input
SB1: SB-Link™Header
Pin number Name or significance of signal
1 GNTA
2 Ground
3KEY
4REQA
5 Ground
6SERIRQ

Installing the Motherboar 2-9
(3) Jumper and Switches
You can set jumper switches on the motherboard to configure various
hardware options. See Figure 1-1 for jumper locations.
Throughout this section, the following symbols are used to indicate jumper
settings.
For 3-pin jumpers, the symbols below are used:
For 2-pins jumpers, the following symbols are used:
Note: To avoid losing jumper caps, attach the removed jumper cap to one
of the jumper pins.
Short Pins 1 and 2 with a jumper cap.
Short Pins 2 and 3 with a jumper cap.
Place the jumper cap over the two pins of the
jumper to Short the jumper.
Remove the jumper cap to Open the jumper cap.

2-10 Chapter 2
CCMOS 1: CMOS Discharge Jumper
Jumper CCMOS discharge CMOS memory. When you install the
motherboard, make sure this jumper is set for Normal Operation(1-2). See
the jumper below.
Setting CCMOS
Normal Operation
(Default)
Discharge CMOS
(4) Installation of the Pentium



II/III, Celeron™CPU
The installation method for the CPU is printed on the package of the retention
mechanism that comes with the motherboard. You can refer to it while you
install the CPU. This motherboard also supports the Celeron™PPGA processor.
If you want to install the Celeron™PPGA processor, you have to use an
additional adapter that allows you to use a Celeron™PPGA processor in a slot 1
board. For this ABIT makes the SlotKETadapter.
Note:
!Installing a heat sink and cooling fan is necessary for proper heat dissipation
from your CPU. Failing to install these items may result in overheating and
damage of your CPU.
!Please refer to your boxed processor installation or other documentation
attached with your CPU for detailed installing instructions.

Installing the Motherboar 2-11
(5)
Installing System Memory
The motherboard provides three 168-pin DIMM sites for memory expansion..
The DIMM socket supports 1Mx64(8MB), 2Mx64(16MB), 4Mx64(32MB),
8Mx64(64MB), 16Mx64(128MB), and 32Mx64(256MB) or double sided
DIMM modules. Minimum memory size is 8MB and maximum memory size is
768MB SDRAM.
There are three Memory module sockets on the system board.(Total six banks)
In order to create a memory array, certain rules must be followed. The following
set of rules allows for optimum configurations.
!The memory array is 64 or 72 bits wide. (Without parity or with parity)
!Those modules can be populated in any order.
!Support single and double density DIMMS.
The following is the valid memory configuration:
Bank Memory Module Total Memory
Bank 0, 1
(DIMM1) 8MB, 16MB, 32MB, 64MB, 128MB, 256MB 8MB ~ 256MB
Bank 2, 3
(DIMM2) 8MB, 16MB, 32MB, 64MB, 128MB, 256MB 8MB ~ 256MB
Bank 4, 5
(DIMM3) 8MB, 16MB, 32MB, 64MB, 128MB, 256MB 8MB ~ 256MB
Total System Memory 8MB ~ 768MB

2-12 Chapter 2
Supported SDRAM Memory Configurations
DRAM DRAM DRAM DRAM DRAM DIMM DRAM MA DARM
Size
Type Tech Depth Width SS
x64
DS
x64 Addressing Row Col Banks Min (1 row)
Max
(2 row)
1M 16 1M 2M Asymmetric 12 8 2 8MB 16MB
2M 8 2M 4M Asymmetric 12 9 2 16MB 32MB
2M 8 2M 4M Asymmetric 13 8 2 16MB 32MB
SDRAM 16M
4M 4 4M 8M Asymmetric 12 10 2 32MB 64MB
4M 4 4M 8M Asymmetric 14 8 2 32MB 64MB
2M 32 2M 4M Asymmetric 12 9 2 16MB 32MB
2M 32 2M 4M Asymmetric 13 8 2 16MB 32MB
4M 16 4M 8M Asymmetric 12 10 2 32MB 64MB
4M 16 4M 8M Asymmetric 14 8 2 32MB 64MB
8M 8 8M 16M Asymmetric 14 9 2 64MB 128MB
SDRAM 64M
2 Bank
16M 4 16M 32M Asymmetric 14 10 2 128MB 256MB
2M 32 2M 4M Asymmetric 13 8 4 16MB 32MB
4M 16 4M 8M Asymmetric 14 8 4 32MB 64MB
8M 8 8M 16M Asymmetric 14 9 4 64MB 128MB
SDRAM 64M
4 Bank
16M 4 16M 32M Asymmetric 14 10 4 128MB 256MB