CHAPTER 1
INTRODUCTION
Chapter 1
INTRODUCTION
The MS-6112 is a high-performance personal computer mainboard based on
the Pentium® II processor.
The mainboard uses the highly integrated Intel® 82440LX AGPset which
optimize the system bandwidth and concurrency with the implementation of
Quad Port Acceleration (QPA). QPA provides 4-port concurrent arbitration
of the processor bus, graphics, PCI bus and SDRAM.
The Intel® 82371AB chipset integrates all system control functions such as
ACPI (Advanced Configuration and Power Interface). The ACPI provides
more Energy Saving Features for the OSPM(OS Direct Power Management)
function. The Intel® 82371AB chipset also improves the IDE transfer rate by
supporting Ultra DMA/33 IDE that transfers data at the rate of 33MB/s.
The mainboard also supports the LM78 System Hardware Monitor
Controller as optional function. The LM78 function includes: CPU /power
supply/chassis fan revolution detect, CPU/system voltage monitor, system
temperature monitor, and chassis intrusion detect(optional).
1-1
CHAPTER 1
INTRODUCTION
On-BoardIDE
l An IDE controller on the Intel® 82371AB PCI Chipset provides IDE HDD/
CD-ROM with PIO, Bus Master and Ultra DMA/33 operation modes.
l Can connect up to four IDE devices.
On-Board Peripherals
l On-Board Peripherals include:
- 1 floppy port supports 2 FDD with 360K, 720K, 1.2M, 1.44M and
2.88Mbytes.
- 2 serial ports (COMA + COMB)
- 1 parallel port supports SPP/EPP/ECP mode
- 2 USB ports
- 1 IrDA connector for SIR.
BIOS
l The mainboard BIOS provides “Plug & Play” BIOS which detects the
peripheral devices and expansion cards of the board automatically.
l The mainboard provides a Desktop Management Interface(DMI) function
which records your mainboard specifications.
On-Board System Hardware Monitor(LM78)
l CPU/Power Supply/Chassis Fan Revolution Detect
l CPU Fan Control (the fan will automatically stop when the system enters
suspend mode)
l System Voltage Detect
l Chassis Intrusion Detect(reserved)
l Display Actual Current Voltage
RTC
l Non-Volatile RTC.
Keyboard Connector
l PS/2® keyboard interface and PS/2® mouse interface.
1-3
CHAPTER 1
INTRODUCTION
Dimension
l ATX Form Factor: 30cm(L) x 23cm(W) x 4 layers PCB.
l Double deck I/O connectors, compatible with Intel® Venus Mainboard.
Mounting
l 9 mounting holes.
1-4
CHAPTER 1
INTRODUCTION
1.2 Mainboard Layout
PSFAN1
CFAN1
LM78
(optional)
Top: mouse
Bottom:
keyboard
USB
LM75
(optional)
Top: Port 1
Bottom:
Port 2
Top: LPT
Bottom:
COM A
COM B
JSW1
FW82443LX
1
IR1
JFAN
Chassis
Intrusion
Sensor
AGP
J3 J4
(optional)
Clock
Generator
PCI SLOT 1
J10 J9
BATT
JFP1
PCI SLOT 2
PCI SLOT 3
+
SW1
FW82371AB
JSW2
JGL1
JBAT1
ISA SLOT
ISA SLOT
JLG1
ISA SLOT
ISA SLOT
JMODE1
SFAN1
MS-6112
1-5
CHAPTER 2
HARDWARE INSTALLATION
Chapter 2
HARDWARE INSTALLATION
2.1 Central Processing Unit: CPU
The mainboard operates withIntel® Pentium® II processor. The mainboard
uses a CPU Slot called Slot 1 for easy CPU installation and a DIP switch
(SW1) to set the proper speed for the CPU. The CPU should always have a
Heat Sink and a cooling fan attached to prevent overheating.
2-1
CHAPTER 2
HARDWARE INSTALLATION
2.1-1 CPU Installation Procedures
There are two kinds of Pentium® II processor that is currently used: the
OEM Pentium® II processor and the Boxed Pentium® II processor. OEM
Pentium® II processor has no Heat Sink, Fan and Heat Sink Support, while
the Boxed Pentium® II processor is provided with Heat Sink w/ fan and Heat
Sink Support.
A. OEM Pentium® II processor Installation Procedures
Processor
Lock
Heat Sink
W/Fan
Pentium® II
Processor
Notch Hole
Retention
Mechanism
Heat Sink
Support
Top Bar
Heat Sink
Support Base
Heat Sink
Support Pin
Required Things:
Pentium® II processor - Processor.
*Retention Mechanism(RM) - Plastic Guide that holds the S.E.C. Catridge
in the Slot 1 connector.
*Retention Mechanism Attach Mount(RMAM) - Bolt/Bridge assemblies
inserted up through the bottom of the
motherboard. RM secures to RMAM ( 2
RMAM required per RM ).
*Heat Sink Support Base (HSSBASE) - Plastic support bar mounted to
the mainboard under the ATX heatsink.
(One leg is always bigger than the other one)
2-2
CHAPTER 2
HARDWARE INSTALLATION
*Heat Sink Support Pin (HSSPIN) - Plastic pins inserted through the
HSSBASE to secure it to the mainboard (2
required per Assembly).
*Heat Sink Support Top Bar (HSSTOP)- Plastic bar that clips onto the
HSSBASE through the fins on the ATX
heatsink.
**Heat Sink w/ fan - Heat Sink that can be attached to the Pentium® II
processor with metal clip.
Note: * Provided by MSI mainboard.
** Provided by Special request.
HSSBASE
RM
HSSPIN
RMAM
HSSTOP
2-3
CHAPTER 2
HARDWARE INSTALLATION
Step 1: Insert the Retention Mechanism Attach Mount at the bottom
of the mainboard.
Step 2: Install the Retention Mechanism.
Look for the key on Slot 1, and match it with the Notch Key on the
Retention Mechanism for proper direction. Then, attach the
Retention Mechanism to the Retention Mechanism Attach Mount.
Use a Screwdriver to secure the Retention Mechanism.
Retention
Mechanism
ê
ê
Notch
Key
Key
SLOT1
Retention
Mechanism
Attach Mount
ê
ê
2-4
CHAPTER 2
HARDWARE INSTALLATION
Step 3: Install the Heat Sink Support Base.
Look for the Two holes across Slot 1, and match it with the Two legs
of the Heat Sink Support Base for the proper direction. Take note
that one hole/leg is bigger than the other. The Four top pins of the
Heat Sink Support Base should also be oriented towards Slot 1.
Heat Sink
Support Pin
pins
Leg
Heat Sink
Support Base
Push the Heat Sink Support Base onto the mainboard, until you hear
a click sound. Check for a perfect fit.
Step 4: Install the Heat Sink Support Pin.
Push the Heat Sink Support Pins onto the two holes of the Heat Sink
Support Base. Check for a perfect fit. These pins are used to secure
the Heat Sink Support Base.
2-5
CHAPTER 2
HARDWARE INSTALLATION
Step 5: Install the Heat Sink with Fan to the Processor.
Push down the metal clips, so that they are in line with the back of
the Heat Sink. Be careful, so as not detach the metal clips from the
Heat Sink.
Heat Sink w/ Fan
The arrow
should be
pointing
â
Heat Sink
Base Holder
down.
Metal Clips
In case the metal clips are detached from the Heat Sink, re-attach
them. Look for the arrow on the metal clip. This arrow should be
pointing down and aligned with the Heat Sink Support Base Holder.
Attach the Heat Sink to the processor.
Metal Clips Ear
Clip Holder
Secure
Posts
Secure
holes
Clip Holder
Metal Clips Ear
Pentium® II processor (Back)
Heat Sink w/ Fan(Back)
- Look at the back of the Heat Sink and take note of the 2 secure
posts. Insert these 2 Secure posts to the 2 secure holes on the
back of the processor.
- Align the ears of the metal clips with the clip holders on the back of
the processor. Use a screw driver to push the metal clips onto the
clip holders. Check for a perfect fit.
2-6
CHAPTER 2
HARDWARE INSTALLATION
Step 6: Install the Processor.
Unlock the Processor by pushing in the Processor Locks.
è
ç
Insert the Processor like inserting a PCI or an ISA card.
Step 7: Lock the Processor Locks.
Secure the CPU by pulling the Processor Locks out.
è
ç
2-7
CHAPTER 2
HARDWARE INSTALLATION
Step 8: Install the Heat Sink Support Top Bar.
Push the Heat Sink Support Top Bar to the Heat Sink Support Base,
Until you hear a “click” sound. Check for a perfect fit.
Heatsink
Support Top
Bar
The installation is now complete.
2-8
CHAPTER 2
HARDWARE INSTALLATION
B. Boxed Pentium® II processor Installation Procedures
The Boxed Pentium® II processor has a built- in Fan and Heat Sink. It also
has a Heat Sink Support. So if you’re going to use the Boxed processor, all
you need is the Retention Mechanism.
Step 1: Insert the Retention Mechanism Attach Mount at the bottom
of the mainboard.
Step 2: Install the Retention Mechanism.
Look for the key on Slot 1, and match it with the Notch Key on the
Retention Mechanism for proper direction. Then, attach the
Retention Mechanism to the Retention Mechanism Attach Mount.
Use a Screwdriver to secure the Retention Mechanism.
Retention
Mechanism
ê
ê
Notch
Key
Key
SLOT1
Retention
Mechanism
Attach Mount
ê
ê
2-9
CHAPTER 2
HARDWARE INSTALLATION
Step 3: Install the Heat Sink Support Base.
Look for the 2 holes across Slot 1, and match it with the 2 Heat Sink
Support Base. Take note that one hole/base is bigger than the other.
Retention
Mechanism
Notch
Hole
PC-3742
Heat Sink
Support Base
Push the Heat Sink Support Base onto the mainboard, until you hear
a click sound. Check for a perfect fit.
2-10
CHAPTER 2
HARDWARE INSTALLATION
Step 4: Install the Heat Sink Support.
Attach the 2 Heat Sink Supports to the sides of the Processor. These
Heat Sink Supports will fit in any direction, so be sure that the Heat
Sink Support Locks are oriented outwards for the proper direction.
Intel® Boxed
PentiumTM II
Processor
Heat Sink
Support
PC-3743
Heat Sink
Support Lock
2-11
CHAPTER 2
HARDWARE INSTALLATION
Step 5: Unlock the Processor Locks and Heat Sink Support Locks.
Push in the Processor Locks. Open the Heat Sink Support Locks.
Processor
Lock
Heatsink
Support
Lock
PC-3744
Step 6: Insert the Processor like inserting a PCI or an ISA card.
2-12
CHAPTER 2
HARDWARE INSTALLATION
PC-3745
Step 7: Lock the Processor Locks and Heat Sink Support Locks
Secure the CPU by pushing out the Processor Locks. Close the Heat
Sink Support Locks.
The installation is now complete.
2-13
CHAPTER 2
HARDWARE INSTALLATION
2.1-2 CPU Speed Setting: SW1
To adjust the speed of the CPU, you must know the spec. of your CPU
(always ask the vendor for CPU spec.). Then look at Table 2.1 (200 ~
333MHz Intel® Pentium® II processor)for setting.
4
3
1 2
OFF
ON
SW1
D I P
O N
Speed Setting
CPU
Type
SW1
4
3
3
3
3
3
1 2
OFF
ON
200MHz
233MHz
D I P
O N
4
1 2
OFF
ON
D I P
O N
4
1 2
OFF
ON
266MHz
D I P
O N
4
1 2
OFF
ON
300MHz
333MHz
D I P
O N
4
1 2
OFF
ON
D I P
O N
Table 2.1 200 ~ 333MHz Intel® Pentium® II processor
2-14
CHAPTER 2
HARDWARE INSTALLATION
2.1-3 CPU Clock Generator Setting: J10/J9
These jumper is used to set the CPU Clock.
J10 J9
CPU Clock
J10 J9
66 MHz
68 MHz
75 MHz
Note: 68/75 MHz CPU clock are both
reserved function.
2-15
CHAPTER 2
HARDWARE INSTALLATION
2.1-4 CPU Fan Power Connectors: JFAN/CFAN1/SFAN1/
PSFAN1
These connectors support system cooling fan with +12V. It supports three
pin head connector. When connecting the wire to the connector, always
take note that the red wire is the positive and should be connected to the
+12V, the black wire is Ground and should be connected to GND. If your
mainboard has LM78 chipset on-board, you must use a specially designed
fan with speed sensor to take advantage of LM78’s CPU fan control.
GND
GND
+12V
+12V
SENSOR
SENSOR
PSFAN1
CFAN1
GND
+12V
GND
JFAN
GND
+12V
SENSOR
PSFAN1 : Power Supply Fan
CFAN1 : CPU Fan
SFAN1
SFAN1 : System(Chassis) Fan
For fans with fan speed sensor, every rotation of the fan will send out 2
pulses. LM78 will count and report the fan rotation speed.
Note: 1. CFAN1/SFAN1/PSFAN1 are the CPU, Power and Chassis
Cooling Fan Speed Connector (reserved for LM78 System Hardware
Monitor Option.)
2. Always consult vendor for proper CPU cooling fan.
2-16
CHAPTER 2
HARDWARE INSTALLATION
2.2 Flash ROM Programming Voltage: JMODE1
This jumper is for setting the Voltage of the Flash ROM BIOS.
1
3
JMODE1
Voltage Setting
JMODE1
JMODE1
1
1
+12V
+12V
PWD
VCC
PWD
VCC
3
3
+5V
+12V
(default)
Note: Short 1-2 pin, if you’re using Intel® or flash memory and you want to
flash the ROM data.
2-17
CHAPTER 2
HARDWARE INSTALLATION
2.3 External Battery Connector: JBAT1
A battery must be used to retain the mainboard configuration in CMOS
RAM. If you use the on-board battery, you must short 1-2 pins of JBAT1
to keep the CMOS data.
1
3
JBAT1
1
1
3
3
Clear Data
Keep Data
Note: You can clear CMOS by shorting 2-3 pin, while the system is off.
Then, return to 1-2 pin position. Avoid clearing the CMOS while
the system is on; it will damage the mainboard.
2-18
CHAPTER 2
HARDWARE INSTALLATION
2.4 Memory Installation
2.4-1 Memory Bank Configuration
The mainboard supports a maximum of 1 GB of memory for EDO and 512MB
for SDRAM: It provides three 168-pinunbuffered DIMMs (Double In-Line
Memory Module) sockets. It supports 8 MB to 256 Mbytes DIMM memory
module. The memory module can be either SDRAM or EDO (Extended Data
Output) Mode DRAM. A DIMM consists of two Banks and may have a
maximum of 256 MB of memory.
Note: FP(Fast Page) & BEDO(Burst EDO) are not supported.
2-19
CHAPTER 2
HARDWARE INSTALLATION
2.4-2 Memory Installation Procedures
A. How to install a DIMM Module
Single Sided DIMM
Double Sided DIMM
1. The DIMM slot has a two Notch Key “VOLT and DRAM”, so the
DIMM memory module can only fit in one direction.
2. Insert the DIMM memory module vertically into the DIMM slot.
Then push it in.
DRAM
VOLT
3. Close the plastic clip at the side of the DIMM slot.
Note:You can only use a 3.3 volt DIMM module (EDO or SDRAM).
2-20
CHAPTER 2
HARDWARE INSTALLATION
2.4-1 Memory Population Rules
1. Supports EDO and SDRAM.
2. Supportsunbuffered DIMM.
3. To operate properly, at least one 168-pin DIMM module must be
installed.
4. This mainboard supports Table Free memory, so memory can be installed
on DIMM1, DIMM2, or DIMM 3 in any order.
5. Supports 3.3 volt DIMM.
6. The DRAM addressing and the size supported by the mainboard is
shown next page.
2-21
CHAPTER 2
HARDWARE INSTALLATION
Table 2.4-1 EDO DRAM Memory Addressing
DRAM
Density &
Width
MB/SIMM
Single no. Double
Side(S) pcs. Side(D)
DRAM
Addressing
Address Size
DRAM
Tech.
no.
pcs.
Row
Column
4M
1Mx4
SYMM
SYMM
ASYM
ASYM
ASYM
SYMM
ASYM
ASYM
ASYM
ASYM
SYMM
ASYM
ASYM
SYMM
10
10
12
11
12
11
12
11
12
13
11
12
12
12
10
10
8
4MBx8 8MBx16
16M
1Mx16
1Mx16
2Mx8
4MBx2
4MBx2
8MBx4
8MBx4
10
9
8MBx4 16MBx8
8MBx4 16MBx8
16MBx8 32MBx16
16MBx8 32MBx16
8MBx1 16MBx2
8MBx1 16MBx2
8MBx1 16MBx2
16MBx2 32MBx4
16MBx2 32MBx4
32MBx4 64MBx8
64MBx8128MBx16
2Mx8
4Mx4
11
10
10
9
4Mx4
64M
2Mx32
2Mx32
2Mx32
4Mx16
4Mx16
8Mx8
8
11
10
11
12
16Mx4
Table 2.4-2 SDRAM Memory Addressing
DRAM
Density &
Width
MB/DIMM
Address Size
DRAM
Addressing
DRAM
Tech.
Single no.
Side(S) pcs.
no.
pcs.
Double
Side(D)
Row
Column
16M
1Mx16
ASYM
ASYM
ASYM
ASYM
ASYM
ASYM
ASYM
ASYM
ASYM
ASYM
ASYM
ASYM
ASYM
11
11
11
11
12
11
13
13
13
11
12
12
12
8
9
8MBx4 16MBx8
16MBx8 32MBx16
2Mx8
4Mx4
10
9
32MB
64MB
64M
2Mx32
2Mx32
4Mx16
4Mx16
8Mx8
32MBx2 64MBx4
16MBx2 32MBx4
8
10
8
32MB
32MB
64MB
64MB
9
64MB
128MB
256MB
16Mx4
2Mx32
4Mx16
8Mx8
10
8
128MB
64M
8
9
16Mx4
10
2-22
CHAPTER 2
HARDWARE INSTALLATION
2.5 Case Connector: JFP1
The Turbo LED, Reset Switch, Key Lock, Power LED, Speaker and HDD
LED are all connected to the JFP1 connector block.
Keylock
Turbo
LED
+
Power
LED
+
Speaker
Reset
Switch
+
HDD LED
JFP1
2-23
CHAPTER 2
HARDWARE INSTALLATION
2.5-1 Turbo LED
The Turbo LED is always ON. You can connect the Turbo LED from the
system case to this pin.
2.5-2 Reset Switch
Reset switch is used to reboot the system rather than turning the power ON/
OFF. Avoid rebooting while the HDD LED is lit. You can connect the Reset
switch from the system case to this pin.
2.5-3 Keylock
Keylock allows you to disable the keyboard for security purposes. You can
connect the keylock to this pin.
2.5-4 Power LED
The Power LED is always lit while the system power is on. You can connect
the Power LED from the system case to this pin.
2.5-5 Speaker
Speaker from the system case is connected to this pin.
2.5-6 HDD LED
HDD LED shows the activity of a hard disk drive. Avoid turning the power
off while the HDD led is lit. You can connect the HDD LED from the system
case to this pin.
2-24
CHAPTER 2
HARDWARE INSTALLATION
2.6 Floppy Disk Connector: FDC
The mainboard also provides a standard floppy disk connector FDC that
supports 360K, 720K, 1.2M, 1.44M and 2.88M floppy disk types. This
connector support the provided floppy drive ribbon cables.
FDC
1
2-25
CHAPTER 2
HARDWARE INSTALLATION
2.7 Hard Disk Connectors: IDE1 & IDE2
The mainboard has a 32-bit Enhanced PCI IDE Controller that provides PIO
mode 0~4, Bus Master, and Ultra DMA/33 function. It has two HDD
connectors IDE1 (primary) and IDE2 (secondary). You can connect up to
four hard disk drives, CD-ROM, 120MB Floppy (reserved for future BIOS)
and other devices to IDE1 and IDE2. These connectors support the
provided IDE hard disk cable.
1
1
IDE1(Primary IDE Connector)
The first hard drive should always be connected to IDE1. IDE1 can
connect a Master and a Slave drive. You must configure second hard
drive to Slave mode by setting the jumper accordingly.
IDE2(Secondary IDE Connector)
IDE2 can also connect a Master and a Slave drive.
2-26
CHAPTER 2
HARDWARE INSTALLATION
2.8 Power Supply
2.8-1 ATX 20-pin Power Connector: JPWR1
This connector supports the power button on-board. Using the ATX power
supply, functions such as Modem Ring Wake-Up and Soft Power Off are
supported by this mainboard.
10
20
ATX
Power Connector
11
1
PIN DEFINITION
PIN
11
12
13
14
15
16
17
18
19
20
SIGNAL
3.3V
-12V
GND
PS_ON
GND
GND
GND
-5V
PIN
1
2
3
4
5
6
7
8
SIGNAL
3.3V
3.3V
GND
5V
GND
5V
GND
PW_OK
5V_SB
12V
5V
5V
9
10
2-27
CHAPTER 2
HARDWARE INSTALLATION
2.8-2 Remote Power On/Off Switches: JSW1/JSW2
Connect to a 2-pin push button switch. Every time the switch is shorted by
pushing it once, the power supply will change its status from OFF to ON.
During ON stage, push once and the system goes to sleep mode: pushing it
more than 4 seconds will change its status from ON to OFF. If you want to
change the setup, you could go to the BIOS Power Management Setup.
This is used for ATX type power supply.
JSW1
JSW2
Note: The two switches are provided by the mainboard for your
convenience, so you can use any of them. The two switches have
the same feature.
2-28
CHAPTER 2
HARDWARE INSTALLATION
2.9 IrDA Infrared Module Connector: IR1
The mainboard provides two 5-pin infrared (IR) connectors for IR modules.
These connectors are for optional wireless transmitting and receiving
infrared module. You must configure the setting through the BIOS setup to
use the IR function. FIR and Consumer IR are reserved functions.
1
VCC
NC
IRRX
GND
IRTX
IR1
2-29
CHAPTER 2
HARDWARE INSTALLATION
2.10 Serial Port Connectors: COM A & COM B
The mainboard has two 9-pin male DIN connectors for serial ports COM A
and COM B. These two ports are 16550A high speed communication ports
that send/receive 16 bytes FIFOs. You can attach a mouse or a modem cable
directly into these connectors.
1 2 3 4 5
6 7 8 9
COM A
COM B
PIN DEFINITION
PIN
1
SIGNAL
DCD(Data Carry Detect)
SIN(Serial In or Receive Data)
SOUT(Serial Out or Transmit Data)
DTR(Data Terminal Ready)
GND
2
3
4
5
6
DSR(Data Set Ready)
RTS(Request To Send)
CTS(Clear To Send)
7
8
9
RI(Ring Indicate)
2-30
CHAPTER 2
HARDWARE INSTALLATION
2.11 Parallel Port Connector: LPT
The mainboard provides a 25 pin female centronic connector for LPT. A
parallel port is a standard printer port that also supports Enhanced Parallel
Port(EPP) and Extended capabilities Parallel Port(ECP). See connector and
pin definition below:
LPT
13 12 11 10 9
8
7
6
5
4
3
2
1
25 24 23 22 21 20 19 18 17 16 15 14
PIN DEFINITION
PIN
1
SIGNAL
PIN
14
15
16
17
18
19
20
21
22
23
24
25
SIGNAL
STROBE
DATA0
DATA1
DATA2
DATA3
DATA4
DATA5
DATA6
DATA7
ACK#
AUTO FEED#
ERR#
INIT#
2
3
4
SLIN#
GND
5
6
GND
7
GND
8
GND
9
GND
10
11
12
13
GND
BUSY
PE
GND
GND
SELECT
2-31
CHAPTER 2
HARDWARE INSTALLATION
2.12 Mouse Connector: JKBMS1
The mainboard provides a standard PS/2® mouse mini DIN connector for
attaching a PS/2®mouse. You can plug a PS/2® mouse directly into this
connector. The connector location and pin definition are shown below:
Pin5
Mouse Clock
Pin6
NC
Pin3
GND
Pin4
VCC
Pin1
Mouse DATA
Pin2
NC
PS/2® Mouse (6-pin Female)
2.13 Keyboard Connector: JKBMS1
The mainboard provides a standard PS/2® keyboard mini DIN connector for
attaching a keyboard. You can plug a keyboard cable directly to this
connector.
PS/2® Keyboard (6-pin Female)
Pin5
KBD Clock
Pin6
NC
Pin4
VCC
Pin2
Pin3
NC
Pin1
GND
KBD DATA
2-32
CHAPTER 2
HARDWARE INSTALLATION
2.14 USB Connector: USB
The mainboard provides aUHCI(Universal Host Controller Interface)
Universal Serial Bus root for attaching USB devices like: keyboard, mouse
and other USB devices. You can plug the USB device directly to this
connector.
USB Port 1
1
2
3
4
USB Port 2
PIN
SIGNAL
VCC
-Data0
GND
1
2
3
4
+Data0
2-33
CHAPTER 2
HARDWARE INSTALLATION
2.15 Power Saving LED Connector: JGL1
JGL1 can be connected with LED. This will lit while the system is in suspend
mode.
JGL1
2-34
CHAPTER 2
HARDWARE INSTALLATION
2.16 Special Jumpers: J3/J4
These jumper is used only by special customer. Always leave it on default
setting.
3
1
J3
J4
(default)
2-35
AMI® BIOS USER’S GUIDE
CHAPTER 3
Chapter 3
AMI® BIOS USER GUIDE
The system configuration information and chipset register information is
stored in the CMOS RAM. This information is retained by a battery when
the power is off. Enter the BIOS setup (if needed) to modify this information.
The following pages will describe how to enter BIOS setup, and all about
options.
3-1
AMI® BIOS USER’S GUIDE
CHAPTER 3
3.1 Enter BIOS Setup
Enter the AMI® setup Program’s Main Menu as follows:
1. Turn on or reboot the system. The following screen appears with
a series of diagnostic check.
AMIBIOS (C) 1996 American Megatrends Inc.
AGIOMS VXXX XXXXXX
Hit <DEL> if you want to run setup
(C) American Megatrends Inc.
61-XXXX-001169-00111111-071592-i82440FX-H
2. When the “Hit <DEL>” message appears, press <DEL> key to
enter the BIOS setup screen.
3. After pressing <DEL> key, the BIOS setup screen will appear.
Note: If you don’t want to modify CMOS original setting, then don’t press any
key during the system boot.
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AMI® BIOS USER’S GUIDE
CHAPTER 3
AMIBIOS HIFLEX SETUP UTILITIES - VERSION 1.07
(C) 1996 American Megatrends, Inc. All Rights
Reserved
Standard CMOS Setup
Advanced CMOS Setup
Advanced Chipset Setup
Power Management Setup
PCI/Plug and Play Setup
Peripheral Setup
Hardware Monitor Setup
Auto-Detect Hard Disks
Change User Password
Change Supervisor Password
Change Language Setting
Auto Configuration with Optimal Settings
Auto Configuration with Fail Safe Settings
Save Settings and Exit
Exit without Saving
Standard CMOS setup for changing time, hard disk type, etc.
4. Use the <Up> and <Down> key to move the highlight scroll up or
down.
5. Use the <ENTER> key to select the option.
6. To exit, press <ESC>. To save and exit, press <F10>.
7. Section 3.2 to 3.7 will explain the option in more details.
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AMI® BIOS USER’S GUIDE
CHAPTER 3
3.2 Standard CMOS Setup
1. Press <ENTER> on “Standard CMOS Setup” of the main menu
screen .
AMIBIOS SETUP - STANDARD CMOS SETUP
(C)1996 American Megatrends,Inc.All Rights Reserved
Date (mm/dd/yyyy): Mon Jul 28, 1997
Time (hh/mm/ss):
17:09:25
Floppy Drive A:
Floppy Drive B:
1.44 MB 3 1/2
Not Installed
LBA
Blk
PIO
32Bit
Type Size Cyln Head WPcom Sec
Pri Master :Auto
Pri Slave :Auto
Sec Master :Auto
Sec Slave :Auto
Mode Mode Mode Mode
ON
ON
ON
ON
ON
ON
ON
ON
AUTO ON
AUTO ON
AUTO ON
AUTO ON
Boot Sector Virus Protection Disabled
Month
Day
Year
: Jan-Dec
: 01-31
: 1901-2099
ESC:Exit :Sel
PgUp/PgDn:Modify
F2/F3:Color
2. Use <Up> and <Down> to choose the item and <PgUp> and
<PgDn> keys to modify the highlighted item.
3. After you have finished with the Standard CMOS Setup, press
<ESC> to go back to the main menu.
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AMI® BIOS USER’S GUIDE
CHAPTER 3
3.3 Advanced CMOS Setup
1. Press <ENTER> on “Advanced CMOS Setup” of the main menu
AMIBIOS SETUP - ADVANCED CMOS SETUP
(C) 1996 American Megatrends, Inc. All Rights
Reserved
Quick Boot
Ist Boot Device
2nd Boot Device
3rd Boot Device
Enabled
Floppy
IDE 0
Available Options:
Enabled
Disabled
CD-ROM
Try Other Boot Devices
Initial Display Mode
Display Mode At ADD-ON ROM Init
Floppy Access Control
Hard Disk Access Control
BootUp Num-Lock
Floppy Drive Swap
Floppy Drive Seek
PS/2 Mouse Support
Primary Display
Yes
BIOS
Force BIOS
Read-Write
Read-Write
On
Disabled
Disabled
Enabled
Abset
Password Check
Parity Check
Setup
Disabled
No
Enabled
Cached
Cached
Disabled
Disabled
Disabled
Disabled
Disabled
Disabled
Boot to OS/2 64M
System BIOS Cacheable
C000, 16k Shadow
C400, 16k Shadow
C800, 16k Shadow
CC00, 16k Shadow
D000, 16k Shadow
D400, 16k Shadow
D800, 16k Shadow
DC00, 16k Shadow
ESC:Exit :Sel
PgUp/PgDn:Modify
F2/F3:Color
2. Use <Up> and <Down> to choose the item and <PgUp> and
<PgDn> keys to modify the highlighted item.
3. After you have finished with the Advanced CMOS Setup, press
<ESC> to go back to the main menu.
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AMI® BIOS USER’S GUIDE
CHAPTER 3
Description of the item on screen follows:
Quick Boot
Set this option to Enabled to permit AMI® BIOS to boot within 5
seconds. This option replaces the old ABOVE 1 MB Memory Test option.
The Optimal default setting is Enabled. The Fail-Safe default setting is
Disabled.
1st Boot Device/2nd Boot Device/3rd Boot Device
This option sets the sequence of boot drives.
The settings are:
IDE0
IDE1
IDE2
IDE3
F(optical)
SCSI
The system will boot from the first HDD.
The system will boot from the Second HDD.
The system will boot from the Third HDD.
The system will boot from the Fourth HDD.
The system will boot from LS-120(120M Floppy).
The system will boot from the SCSI.
Network
CD-ROM
Disable
The system will boot from the Network drive.
The system will boot from the CD-ROM.
Disable this sequence.
Try other Boot Devices
This option sets the device boot, if all the Four Boot Devices failed.
Floppy Access Control
This option sets the Floppy to Read-only or Read-Write.
HDD Access Control
This option sets the HDD to Read-only or Read-Write. During
Read-only, if you try to write on the HDD, the system will halt.
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AMI® BIOS USER’S GUIDE
CHAPTER 3
Boot up Num Lock
When this option is set to Off, AMI® BIOS turns off the Num Lock
key when the system is powered on. The end user can then use the arrow
keys on both the numeric keypad and the keyboard. The settings are On or
Off. The optimal default and Fail-Safe default settings are On.
Floppy Drive Swap
Set this option to Enabled to specify that floppy drives A: and B:
are swapped. The setting are Enabled and Disabled. The Optimal and Fail-
Safe default settings are Disabled.
Floppy Drive Seek
When this option is set to Enabled, AMI® BIOS performs a Seek
command on floppy drive A: before booting the system. The settings are
Enabled and Disabled. The Optimal and Fail-Safe default settings are
Disabled.
PS/2® Mouse Support
When this option is set to Enabled, AMI® BIOS supports a PS/2®-
type mouse. The settings are Enabled and Disabled. The Optimal and Fail-
Safe default settings are Enabled.
Primary Display
This option configures the primary display subsytem in the
computer. The settings are Mono(monochrome), 40CGA, 80CGA or VGA/
EGA. The optimal and Fail-Safe default settings are VGA/EGA.
Password Check
This option specifies the type of AMI® BIOS password protection
that is implemented. The Optimal and Fail-Safe default settings are Setup.
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AMI® BIOS USER’S GUIDE
CHAPTER 3
Parity Check
Set this option to Enabled to use the Parity Check function. The
DIMM module need to have parity bit for this function to work.
Boot to OS/2®
Set this option to Enabled to permit the BIOS to run properly, if
OS/2® is to be used with > 64MB of DRAM. The settings are Enabled or
Disabled. The Optimal and Fail-safe default settings are Disabled.
Internal Cache/External Cache
This option selects the type of caching algorithm used by AMI®
BIOS and the CPU for L1 cache memory(internal/external to the CPU). The
settings are Writeback - a writeback algorithm is used, Write-through - a
write-through algorithm is used or Disabled - AMI® BIOS does not specify
the type of caching algorithm. The algorithm is set by the CPU. The Optimal
and Fail-Safe default settings are Writeback.
System BIOS Cacheable
AMI® BIOS always copies the system BIOS from ROM to RAM
for faster execution. Set this option to Enabled to permit the contents of the
F0000h RAM memory segment to be written to and read from cache memory.
The settings are Enabled or Disabled. The Optimal default setting is Ena-
bled. The Fail-Safe default setting is Disabled.
C000, 16K Shadow/C400, 16k Shadow
These options specify how the contents of the video ROM are
handled. The settings are:
Disabled- the Video ROM is not copied to RAM.
Cached-the contents of the video ROM from C0000h -
C7FFFh are not only copied from ROM to RAM; it
can also be written to or read from cache memory.
Shadow - the Contents of the video ROM from C0000h -
C7FFFh are copied(shadowed) from ROM to RAM for
faster execution.
The Optimal and Fail-Safe default setting is Cached.
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AMI® BIOS USER’S GUIDE
CHAPTER 3
C800, 16k Shadow/CC00, 16k Shadow/D000, 16K Shadow/
D400, 16k Shadow/D800, 16k Shadow/DC00, 16K Shadow
These options specify how the contents of the adaptor ROM
named in the option title are handled. The ROM area that is not used by ISA
adapter cards will be allocated to PCI adapter cards. The settings are;
Disabled- The specified ROM is not copied to RAM.
Cache- The contents of the ROM area are not only copied
from ROM to RAM for faster execution, it can also be
written to or read from cache memory.
Shadow- The contents of the ROM area are copied from ROM
to RAM for faster execution.
The Optimal and Fail-Safe default settings are Disabled.
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AMI® BIOS USER’S GUIDE
CHAPTER 3
3.4 Advanced Chipset Setup
1. Press <ENTER> on “Advanced Chipset Setup” of the main menu
screen.
AMIBIOS SETUP - ADVANCED CHIPSET SETUP
(C) 1996 American Megatrends, Inc. All Rights
Reserved
Auto Configure EDO DRAM Timing
EDO DRAM Speed (ns)
EDO Read Burst Timing
EDO Write Burst Timing
EDO RAS Precharge Timing
EDO RAS to CAS Delay
MA wait State
Enabled
60
x222
Available Options:
Enabled
Disabled
x222
3 clocks
3 clocks
Slow
***** SDRAM Timing *****
SDRAM RAS to CAS Delay
SDRAM CAS Latency
SDRAM RAS Precharge Time
DRAM Integrity Mode
VGA Frame Buffer USWC
PCI Frame Buffer USWC
Fixed Memory Hole
2 Clks
3 Clks
2 Clks
Non ECC
Disabled
Disabled
Disabled
Enabled
Disabled
64 MB
CPU To PCI IDE Posting
USWC Write I/O Post
AGP Aperture Size
USB Passive Release
PIIX4 Passive Release
PIIX4 Delayed Transaction
USB Function
Enabled
Enabled
Enabled
Enabled
Disabled
USB Keyboard Legacy Support
ESC:Exit :Sel
PgUp/PgDn:Modify
F2/F3:Color
2. Use <Up> and <Down> to choose the item and <PgUp> and
<PgDn> keys to modify the highlighted item.
3. After you have finished with the Advanced Chipset Setup, press
<ESC> to go back to the main menu.
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AMI® BIOS USER’S GUIDE
CHAPTER 3
Description of the item on screen follows:
Auto Configure EDO DRAM Timing
Choose Enabled(default) will automatically configure the DRAM
timing depending on the “DRAM Speed” selection. Choose disable to
customize setup.
EDO DRAM Speed (ns)
This option specifies the RAS access time (in nanoseconds) for the
DRAM used in the computer. The settings are 50,60 or 70. The Optimal
default setting is 60 and the Fail-Safe default setting is 70.
EDO DRAM Read Burst Timing
Choose DRAM read burst timing for the customize setup.
B stand for BEDO DRAM, E stand for EDO DRAM and F stand for FAST
PAGE DRAM.
EDO DRAM Write Burst Timing
Choose DRAM write burst timing for the customize setup.
EDO RAS Precharge Timing
This option defines the RAS# precharge requirements for the EDO
memory type in 66MHz clocks.
EDO RAS to CAS Delay
This operation decide the delay in assertion of CAS#(SCAS#) from
assertion of RAS#(SRAS#) in 66MHz.
MA Wait State
This option selects Fast or Slow MA bus timing. The Slow timing
is equal to Fast+1, in term of clock number for EDO DRAM.
SDRAM RAS to CAS Delay
This operation decide the delay in assertion of CAS#(SCAS#) from
assertion of RAS#(SRAS#) in 66MHz.
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AMI® BIOS USER’S GUIDE
CHAPTER 3
SDRAM CAS Latency
This option determines the CAS latency time parameter of SDRAM.
The settings are 2 clks or 3 clks.
SDRAM RAS Precharge Time
This option defines the RAS# precharge requirements for the
SDRAM memory type in 66MHz clocks.
DRAM Integrity Mode
During ECC, this will enable the DRAM ECC mechanism that allows
detection of single-bit and multiple-bit errors and recovery of single-bit
errors. During EC, the ECC logic will calculate 8-bit pattern written along
with 64-bit data into the main memory. During Read operation, 8-bit ECC
code is read along with 64-bit data and error checking is performed. No
correction of data will take place in this operation mode. During Disabled,
this will disable the ECC mechanism.
Note: If you choose ECC or EC modes, you must use a DIMM with ECC
byte.
VGA Frame Buffer USWC
The Pentium® II processor supports the Uncacheable Speculatable
Write-Combining (USWC) memory type. The processor provides a write-
combining with buffering strategy for write operation. This is useful for
frame buffering. Writing to USWC memory can be buffered and combined in
the processors write-combining buffer (WCB). The WCBs are viewed as a
special purpose outgoing write buffers, rather than a cache. The WCBs are
written into memory to allocate a different address, or after executing a
serializing, locked, or I/O instructions.
During Enabled, this will enable the processor memory location
A000 and B000 segment as USWC memory type.
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AMI® BIOS USER’S GUIDE
CHAPTER 3
PCI Frame Buffer USWC
The Pentium® II processor supports the Uncacheable Speculatable
Write-Combining (USWC) memory type. The processor provides a write-
combining with buffering strategy for write operation. This is useful for
frame buffering. Writing to USWC memory can be buffered and combined in
the processors write-combining buffer (WCB). The WCBs are viewed as a
special purpose outgoing write buffers, rather than a cache. The WCBs are
written into memory to allocate a different address, or after executing a
serializing, locked, or I/O instructions.
During Enabled, this will enable the processor memory location
C000 and DFFF segment as USWC memory type.
DRAM Refresh Queue
Choose Enabled, the system will provide 4-deep refresh queue. All
refresh request are queued, with the 4th refresh request being the priority
request. All refresh requests are priority when the refresh queue is Disabled.
Fixed Memory Hole
This option allows the end user to specify the location of a memory
hole. The cycle matching the selected memory hole will be passed to the
ISA bus. If Enabled, the selected hole is not remapped.
CPU To PCI IDE Posting
Set this option to Enabled to enable posted messages from the CPU
to the PCI bus or IDE controller. The settings are Enabled or Disabled. The
Optimal and Fail-Safe default settings are Enabled.
USWC Write I/O Post
Set this option to Enabled to use USWC(Uncacheable,
Speculatable, Write-Combined) memory. The settings are Enabled or
Disabled. The Optimal and Fail-Safe default settings are Disabled.
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AMI® BIOS USER’S GUIDE
CHAPTER 3
AGP Aperture Size
This option determines the effective size of the graphics aperture
used in the particular PAC configuration. The AGP aperture is memory-
mapped, while graphics data structure can reside in a graphics aperture. The
aperture range should be programmed as not cacheable in the processor
cache, accesses with the aperture range are forwarded to the main memory,
then PAC will translate the original issued address via a translation table
that is maintained on the main memory. The option allows the selection of
an aperture size of 4MB, 8MB, 16MB, 32MB, 64MB, 128MB, and 256MB.
USB Passive Release
During Enabled, this will allow the PIIX4® to use passive
release(look at PIIX4® Passive Release) while transferring control
information or data for USB transaction. During Disabled, PIIX4®
will perform PCI accesses for USB without using passive release.
PIIX4® Passive Release
The PIIX4® ISA bridge support GAT (Guaranteed Access Time)
mode, which will now violate the spirit of the PCI specification. The systems
provides a programmable passive release mechanism to meet the required
master latencies. During Enabled, ISA masters may see long delays in
accessing PCI memory, including the main DRAM array. The ISA GAT mode
is also not supported during enable. ISA masters must honor IOCHRDY.
PIIX4® Delayed Transaction
During Enabled, the PIIX4® delay transaction mechanism is
enabled when the PIIX4® is the target of a PCI transaction. A read cycle
from Host to PCI is immediately retrived due to any pending PCI to DRAM
cycle. During Disabled, a read cycle from Host to PCI is waited until time-
out due to any pending PCI to DRAM cycle.
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AMI® BIOS USER’S GUIDE
CHAPTER 3
USB Function
Set this option to Enabled or Disabled the on-chip USB controller.
The Optional and Fail-Safe default settings are Disabled.
USB Keyboard Legacy Support
Set this option to Enabled or Disabled USB keyboard/mouse.
The Optional and Fail-Safe default settings are Disabled.
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AMI® BIOS USER’S GUIDE
CHAPTER 3
3.5 Power Management Setup
1. Press <ENTER> on “Power Management Setup” of the main menu
screen.
AMIBIOS SETUP - POWER MANAGEMENT SETUP
(C) 1996 American Megatrends, Inc. All Rights
Reserved
Power Management / APM
Green PC Monitor Power State
Video Power Down Mode
Hard Disk Power Down Mode
Standby Time Out
Disabled
Stand By
Suspend
Stand By
1
Available Options:
Enabled
Disabled
Suspend Time Out
1
Throttle Slow Clock Ratio
Modem Use IO Port
Modem Use IRQ
50-62.5%
N/A
N/A
Display Activity
Ignore
Monitor
Monitor
Ignore
Monitor
Monitor
Ignore
Monitor
Ignore
Ignore
50-62.5%
40oc/104of
Suspend
Device 6(Serial Port 1)
Device 7(Serial Port 2)
Device 8(Parallel Port)
Device 5(Floppy Disk)
Device 0(Primary master IDE)
Device 1(Primary slave IDE)
Device 2(Secondary master IDE)
Device 3(Secondary slave IDE)
System Thermal
Thermal Slow Clock Ratio
CPU Critical Temperature
Power Button Function
ESC:Exit :Sel
PgUp/PgDn:Modify
F2/F3:Color
Ring Resume From Soft-Off
RTC Alarm Resume From Soft-Off
Disabled
Disabled
RTC Alarm Date
RTC Alarm Hour
RTC Alarm Minute
RTC Alarm Second
15
12
50
30
2. Use <Up> and <Down> to choose the item and <PgUp> and
<PgDn> keys to modify the highlighted item.
3. After you have finished with the Power Management Setup, press
<ESC> to go back to the main menu.
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AMI® BIOS USER’S GUIDE
CHAPTER 3
Description of the item on screen follows:
Power Management/APM
Set this option to Enabled to enable the Intel® 82440LX ISA power
management features and APM(Advanced Power Management). The
settings are Enabled, Inst-On(instant-on) or Disabled. The Optimal and Fail-
Safe default settings are Disabled.
Green PC Monitor Power State
This option specifies the power state that the green PC-compliant
video monitor enters when AMI® BIOS places it in a power savings state
after the specified period of display inactivity has expired. The settings are
Off, Standby, Suspend or Disabled. The Optimal and Fail-Safe default
settings are Standby.
Video Power Down Mode
This option specifies the power conserving state that the VESA
VGA video subsystem enters after the specified period of display inactivity
has expired. The settings are Disabled, Standby or Suspend. The Optimal
and Fail-Safe default settings are Standby.
Hard Disk Power Down Mode
This option specifies the power conserving state that the hard disk
drive enters after the specified period of hard drive inactivity has expired.
The settings are Disabled, Standby or Suspend. The Optimal and Fail-Safe
default settings are Disabled.
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AMI® BIOS USER’S GUIDE
CHAPTER 3
Standby Time Out
This option specifies the length of a period of system inactivity
while in Full power on state. When this length of time expires, the computer
enters Standby power state. The settings are Disabled, 1 min, 2 min, 3 min, 4
min, 5 min, 6 min, 7 min, 8 min, 9 min, 10 min, 11 min, 12 min, 13 min, 14 min or
15 min. The Optimal and Fail-Safe default settings are Disabled.
Suspend Time Out
This option specifies the length of a period of system inactivity
while in Standby state. When this length of time expires, the computer
enters Suspend power state. The settings are Disabled, 1 min, 2 min, 3 min, 4
min, 5 min, 6 min, 7 min, 8 min, 9 min, 10 min, 11 min, 12 min, 13 min, 14 min or
15 min. The Optimal and Fail-Safe default settings are Disabled.
Throttle Slow Clock Ratio
This option specifies the speed at which the system clock runs in
power saving states. The settings are expressed as a ratio between the
normal CPU clock speed and the CPU clock speed when the computer is in
the power-conserving state.
Modem Use IO Port
This indicates which IO port will be used by the Modem(if there is a
Modem).
Modem Use IRQ
This indicates which IRQ no. will be used by the Modem(if there is
a Modem).
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AMI® BIOS USER’S GUIDE
CHAPTER 3
Display Activity/Device 6/Device 7/Device 8/Device 5/Device
0/Device 1/Device 1/Device 2/Device 3/System Thermal
When set to Monitor, these options enable event monitoring on the
specified hardware interrupt request line. If set to Monitor and the computer
is in a power saving state, AMI® BIOS watches for activity on the specified
IRQ line. The computer enters the full on power state if any activity occurs.
AMI® BIOS reloads the Standby and Suspend timeout timers if
activity occurs on the specified IRQ line.
Power Button Function
During Suspend, if you push the switch one time, the system goes
into suspend mode and if you push it more than 4 seconds, the system will
be turned off. During On/Off, the system will turn off once you push the
switch.
Ring Resume from Soft-Off
During Disabled, the system will ignore any incoming call from the
modem. During Enabled, the system will boot up if there’s an incoming call
from the modem.
Note: If you have change the setting, you must let the system boot up until
it goes to the operating system. Then, power off the system. This
function will work the next time you power on.
RTC Alarm Resume From Soft-Off
This function is for setting the Date, Hour, Minute, and Second for
your computer to boot up. During Disabled, you cannot use this function.
During Enabled, Choose the Date, Hour, Minute, and Second:
RTC Alarm Date
RTC Alarm Hour
Choose which day the system will boot up.
Choose which hour the system will boot up.
RTC Alarm Minute Choose which minute the system will boot up.
RTC Alarm Second Choose which second the system will boot up.
Note: If you have change the setting, you must let the system boot up until
it goes to the operating system. Then, power off the system. This
function will work the next time you power on.
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AMI® BIOS USER’S GUIDE
CHAPTER 3
3.6 PCI/Plug and Play Setup
1. Press <ENTER> on “PCI/Plug and Play Setup” of the main menu
screen.
AMIBIOS SETUP - PCI/PLUG AND PLAY SETUP
(C) 1996 American Megatrends, Inc. All Rights
Reserved
Available Options:
Enabled
Disabled
Plug and Play Aware O/S
PCI Latency Timer (PCI Clocks)
PCI VGA Palette Snoop
Allocate IRQ to PCI VGA
PCI IDE Busmaster
OffBoard PCI IDE Card
OffBoard PCI IDE Primary IRQ
OffBoard PCI IDE Secondary IRQ
PCI Slot4 IRQ Priority
DMA Channel 0
DMA Channel 1
DMA Channel 3
DMA Channel 5
DMA Channel 6
DMA Channel 7
IRQ3
IRQ4
IRQ5
IRQ7
IRQ8
IRQ9
IRQ10
IRQ11
IRQ12
No
64
Disabled
Yes
Disabled
Auto
Disabled
Disabled
Auto
PnP
PnP
PnP
PnP
PnP
PnP
PCI/PnP
PCI/PnP
PCI/PnP
PCI/PnP
PCI/PnP
PCI/PnP
PCI/PnP
PCI/PnP
PCI/PnP
ESC:Exit :Sel
PgUp/PgDn:Modify
F2/F3:Color
IRQ14
IRQ15
PCI/PnP
PCI/PnP
Disabled
C8000
Reserved Memory Size
Reserved Memory Address
2. Use <Up> and <Down> to choose the item and <PgUp> and
<PgDn> keys to modify the highlighted item.
3. After you have finished with the PCI/Plug and Play Setup, press
<ESC> to go back to the main menu.
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AMI® BIOS USER’S GUIDE
CHAPTER 3
Description of the item on screen follows:
Plug and Play Aware O/S
Set this option to Yes if the operating system in this computer is
aware of and follows the Plug and Play specification. Currently, only
Windows® 95 is PnP-aware. The settings are Yes or No. The Optimal and
Fail-Safe default settings No.
PCI Latency Timer (PCI Clocks)
This option specifies the latency timings (in PCI clocks) for all PCI
devices on the PCI bus. The settings are 32, 64, 96, 128, 160, 192, 224 or 248.
The Optimal and Fail-Safe default settings are 64.
PCI VGA Palette Snoop
When this option is set to Enabled, multiple VGA devices operating
on different buses can handle data from the CPU on each set of palette
registers on every video device. Bit 5 of the command register in the PCI
device configuration space is the VGA Palette Snoop bit (0 is disabled). For
example, if there are two VGA devices in the computer (one PCI and ISA)
and the Bit settings are:
Disabled - Data read and written by the CPU is only directed to the
PCI VGA device’s palette registers.
Enabled - Data read and written by the CPU is directed to
both the PCI VGA device’s palette registers and the
ISA VGA device palette registers, permitting the
palette registers of both devices to be identical.
This option must be set to Enabled if an ISA adapter card requires
VGA palette snooping. The settings are Enabled or Disabled. The Optimal
and Fail-Safe default settings are Disabled.
Allocate IRQ to PCI VGA
Choose the IRQ to be assigned to the PCI VGA display adapter card.
The Optimal and Fail-Safe default setting is No.
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AMI® BIOS USER’S GUIDE
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PCI IDE BusMaster
Set this option to Enabled to specify that the IDE controller on the
PCI local bus includes a bus mastering capability. The settings are Enabled
or Disabled. The Optimal and Fail-Safe default settings are Disabled.
Offboard PCI IDE Card
This option specifies if an offboard PCI IDE controller adapter card
is installed in the computer. You must specify the PCI expansion slot on the
mainboard where the offboard PCI IDE controller is installed. If an offboard
PCI IDE controller is used, the onboard IDE controller is automatically
disabled. The settings are Auto(AMI® BIOS automatically determines
where the offboard PCI IDE controller adaper card is installed), Slot1, Slot2,
Slot3 or Slot4. The Optimal and Fail-Safe settings are Auto.
If an offboard PCI IDE controller adapter card is installed in the
computer, you must also set the Offboard PCI IDE Primary IRQ and Offboard
PCI IDE Secondary IRQ options.
Offboard PCI IDE Primary IRQ/
Offboard PCI IDE Secondary IRQ
These options specify the PCI interrupt used by the Primary (or
Secondary) IDE channel on the offboard PCI IDE controller. The settings are
Disabled, Hardwired, INTA, INTB, INTC or INTD. The Optimal and Fail-Safe
default settings are Disabled.
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AMI® BIOS USER’S GUIDE
CHAPTER 3
DMA Channel 0/1/3/5/6/7
These options specify the bus that the specified DMA channel is
used. These options allow you to reserve DMAs for legacy ISA adapter
cards.
These options determine if AMI
®
BIOS should remove a DMA
from the available DMAs passed to devices that are configurable by the
system BIOS. The available DMA pool is determined by reading the ESCD
NVRAM. If more DMAs must be removed from the pool, the end user can
use these options to reserve the DMA by assigning an ISA/EISA setting to
it.
IRQ3/IRQ4/IRQ5/RQ7/IRQ9/IRQ10/IRQ11/IRQ14/IRQ15
These options specify the bus that the specified IRQ line is used
on. These options allow you to reserve IRQs for legacy ISA adapter cards.
These options determine if AMI® BIOS should remove an IRQ
from the pool of available IRQs passed to devices that are configurable by
the system BIOS. The available IRQ pool is determined by reading the ESCD
NVRAM. If more IRQs must be removed from the pool, the end user can use
these options to reserve the IRQ by assigning an ISA/EISA setting to it.
Onboard I/O is configured by AMI® BIOS. All IRQs used by onboard I/O
are configured as PCI/PnP. If all IRQs are set to ISA/EISA and IRQ14 and 15
are allocated to the onboard PCI IDE, IRQ9 will still be available for PCI and
PnP devices, because at least one IRQ must be available for PCI and PnP
devices. The settings are ISA/EISA or PCI/PnP. The Optimal and Fail-Safe
default settings are IRQ3 through 7 are ISA/EISA. The Optimal and Fail-Safe
default settings PCI/PnP.
Reserved Memory Size/Reserved Memory Address
Some ISA cards have ROM at 0C000h~0D000h segments, but in a
non-standard format. So Plug & Play BIOS can’t detect it. The end user
needs to set it up manually. Setting these options under this condition, will
inform the BIOS which location and how many location is occupied.
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AMI® BIOS USER’S GUIDE
CHAPTER 3
3.7 Peripheral Setup
1. Press <ENTER> on “Peripheral Setup” of the main menu screen.
AMIBIOS SETUP - PERIPHERAL SETUP
(C) 1996 American Megatrends, Inc. All Rights
Reserved
Available Options:
Enabled
Disabled
OnBoard FDC
Enabled
3F8h/COM1
2F8h/COM2
Disabled
2F8
OnBoard Serial PortA
OnBoard Serial PortB
IR Port Support
IR Base Address Select
IR IRQ Select
10
IR DMA Select
Disabled
378
ECP
OnBoard Parallel Port
Parallel Port Mode
EPP Version
N/A
Parallel Port IRQ
Parallel Port DMA Channel
Onboard IDE
7
3
Both
ESC:Exit :Sel
PgUp/PgDn:Modify
F2/F3:Color
2. Use <up> and <down> to choose the item and <PgUp> and
<PgDn> keys to modify the highlighted item.
3. After you have finished with the Peripheral Setup, press <ESC> to
go back to the main menu.
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AMI® BIOS USER’S GUIDE
CHAPTER 3
Description of the item on screen follows:
Onboard FDC
Choose Auto, for the BIOS to automatically detect the device
If the ISA add-on card has Onboard FDC to be set at
Disabled
Enabled
FDC exist
none FDC exist
Choose Enabled, Enabling onboard FDC.
Choose Disabled, Disabling onboard FDC.
The Optimal and Fail-Safe default settings are Auto.
Onboard Serial Port A/Onboard Serial Port B
Choose 3F8, for the BIOS to automatically detect the device.
If the ISA add-on card has
Onboard Serial port to be set at
COM4
(I/O:2E8H)
COM3
(I/O:3E8H)
IRQ
ASSIGNED
IRQ
ASSIGNED
COM2
(I/O:3F8H)
COM1
(I/O:3F8H)
PORT1
PORT2
ü
ü
X
ü
X
ü
ü
ü
X
X
ü
X
X
X
ü
ü
X
X
ü
ü
ü
X
ü
X
X
ü
X
X
ü
X
ü
X
ü
ü
X
ü
ü
X
X
X
ü
X
ü
X
ü
ü
X
X
ü
ü
ü
X
X
X
X
ü
DISABLED
COM3
COM1
COM2
COM1
COM4
COM3
COM2
COM1
COM1
COM2
COM1
COM1
COM1
X
4
4
3
4
3
4
3
4
4
3
4
4
4
DISABLED
COM4
X
3
COM2
3
COM3
4
COM4
3
DISABLED
DISABLED
DISABLED
DISABLED
COM2
X
X
X
X
3
COM3
4
COM3
4
COM2
3
COM2
3
Note: If the onboard serial port interrupt and ISA add-on card interrupt are in
conflict, the serial port will not work properly. Please disable one of the
devices.
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AMI® BIOS USER’S GUIDE
CHAPTER 3
IR Port Support
Choose Auto, the BIOS will automatically assigned onboard port
for IR.
IR Base Address Select
This option will assigned which base address will be used by IR
IR IRQ Select
This option is for selecting the IRQ for the IR.
IR DMA Select
This option is for selecting the DMA for the IR.
Onboard Parallel Port
Choose Auto, the BIOS automatically assigned onboard parallel
port to the available parallel port or disabled.
If the ISA add-on card has
Onboard parallel port to be set as
LPT1
LPT2
LPT3
PORT
ASSIGNED
Disabled
LPT3
IRQ
ASSIGNED
I/O:378H I/O:278H I/O:3BCH
ü
ü
ü
X
ü
X
X
ü
ü
X
ü
X
ü
X
ü
X
ü
ü
X
X
ü
X
5
5
7
5
7
7
LPT2
LPT1
LPT2
LPT1
LPT1
X
X
X
LPT1
7
Note: If the onboard parallel port interrupt and ISA add-on card interrupt are
in conflict, the parallel port will not work properly. Please disable one of
the devices.
3-26
AMI® BIOS USER’S GUIDE
CHAPTER 3
EPP Version
This option is for setting which EPP version will be used. The
settings are 1.7 and 1.9.
Parallel Port Mode
This option allows user to choose the operating mode of the
onbaord parallel port. The settings are Normal, SPP/EPP or ECP mode.
Parallel Port IRQ
If the onboard parallel mode is not on auto mode, the user can
select the interrupt line for onboard parallel port. We suggest that the user
select the interrupt for the onboard parallel port as shown below:
Onboard parallel port set at
Parallel Port IRQ
LPT1(378H)
LPT2(278H)
LPT3(3BCH)
7
5
5
Parallel Port DMA Channel
This option allows user to choose DMA channel 1 to 3 for the
onboard parallel port on ECP mode.
Onboard IDE
Set this option to enable or disable on board IDE controller.
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AMI® BIOS USER’S GUIDE
CHAPTER 3
3.8 Hardware Monitor Setup
The Hardware Monitor Setup is used to monitor the Current CPU
temperature, CPU Fan speed, Chassis Fan Speed, Power fan speed,
Vcore, and etc.
AMIBIOS SETUP - HARDWARE MONITOR SETUP
(C) 1996 American Megatrends, Inc. All Rights
Reserved
Available Options:
Enabled
Disabled
-=System Hardware Monitor=-
Current CPU Temperature
Current CPU Fan Speed
Current Chassis Fan Speed
Current Power Fan Speed
Vcore
30oc/1000f
5273RPM
0 RPM
0 RPM
2.2V
Vtt
Vio
1.5V
3.3V
+5,000V
+12,000V
-12,000V
-5,000V
+5V
+12V
-12V
-5V
ESC:Exit :Sel
PgUp/PgDn:Modify
F2/F3:Color
3-28
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