Zida 6mlx User manual

HANDLING PRECAUTIONS
CAUTION
High potential static charge may cause damage to the integrated circuits on the board. Before
handling any mainboard outside of its protective packaging, ensure that there is no static
electric charge in your body.
Danger of explosion if battery is incorrectly replaced. Replace only with the same or equivalent
type recommended by the manufacturer.
There are some basic precautions when handling the motherboard or other computer components:
♦Keep the board in its anti-static bag until you are ready to install it.
♦Protect your board from static electricity by well grounding of your body and the equipment during the
installation, such as wearing a grounded wrist strap.
♦Always handle the board by its edges.
♦Do not touch with the components on the boards, add-on cards and modules and with the “gold finger”
connectors plugged into the expansion slot. It is best to handle system components by their mounting
bracket.
♦Ensure the system power is completely turn-off before doing any installation work.
TRADEMARKS
Intel, Pentium, Pentium II are registered trademark of Intel Corporation.
IBM, IBM PC, IBM PC/AT, PC-DOS, OS/2 and OS/2 WARP are registered trademarks of
International Business Machines Corporation.
MS-DOS, Windows, Windows NT and Windows 95 are registered trademarks of Microsoft
Corporation.
AMI BIOS is a product of American Megatrends Inc.
Third-party brands and names mentions in this User’s Guide are the property of their
respective owners.
NOTICE TO CUSTOMERS
The information contains in this User’s Guide with no liability whatsoever, and disclaims any express or implied warranty,
relating to sale and/or use of products including liability or warranties relating to fitness for a particular purpose,
merchantability, or infringement of any patent, copyright or other intellectual property right. We shall not be liable for any loss
or profits, loss of business, loss of use or data, interruption of business, or for indirect, special, incidental, or consequential
damages arising from any defect or error in this User’s Guide or product.
We retains the right to make changes on this User’s Guide and product descriptions at any time, without notice.
User’s Guide Revision : 1.1
Release Date : October 1997
Copyright 1997, All rights reserved.

Table of Contents
Page ii
Table of Contents
CHAPTER 1...................................................................................................................................................1
FEATURES OF THE BOARD..............................................................................................................................1
Overview..................................................................................................................................................1
Features Summary....................................................................................................................................1
Quick Reference of Your Motherboard.....................................................................................................3
Motherboard Installation .........................................................................................................................7
CPU Card Installation ...........................................................................................................................10
Installing System Memory (RAM)...........................................................................................................11
Expansion Cards Installation .................................................................................................................11
Connecting External Connector .............................................................................................................12

Motherboard Installation
Page 1
Chapter 1
Features of the Board
OVERVIEW
Congratulations on purchasing the highest performance 6MLX PENTIUM II®motherboard. With the
advanced technologies available today, this motherboard is designed to optimized for Intel’s
PENTIUM II®processors at speeds of 233 MHz and 266 MHz or higher. Four unbuffered, 3.3 Volts,
168-pin DIMM sockets are included for supporting 16MB to 1GB EDO RAM or up to 512M
SDRAM. A Slot 1 connector allows an easy upgrade path for the future PENTIUM II®processors.
This motherboard maximum utilizes Intel's 82440LX PCI chipset. The Intel 82371AB PCI/ISA IDE
Xccelerator (PIIX4) provides an integrated Bus Mastering IDE controller with two high performances
IDE interfaces for up to four IDE devices (such as hard drives or CD-ROM). The integrated super I/O
controller integrates the standard PC I/O functions: floppy interface, two FIFO serial ports, one
EPP/ECP capable parallel port, and support for an IrDA and Consumer Infra Red compatible
interface.
The 6MLX is designed to support the new graphic interface standard, Accelerated Graphic Port
(AGP), The AGP interface can reach a theoretical ~532Mbytes/sec transfer rate for 3D graphics data.
The on-board 32-bit PCI local bus slots allows a higher bandwidth data path, which serves as a super
highway, for intensive data-movement such as video or networking. The BIOS support PCI bridge
user configuration, which allows for further expansion of the system with PCI peripherals. Up to three
16-bit ISA slots allow this board backward hardware compatible with the older expansion card. A
total of seven expansion slots may be populated with full length add-in cards, since one PCI and ISA
slot share the same chassis I/O panel.
FEATURES SUMMARY
This motherboard comes with following features:
þSupports Intel PENTIUM II®Processor 233/266/300 MHz with automatically voltage
adjustment.
þIntel 440LX PCIset, including a 82443LX PCI/Memory controller (PMC), 82371AB PCI ISA
IDE Accelerator (PIIX4).
þAMI PnP BIOS with support for power management, enhanced IDE/SCSI features and desktop
management interface (DMI) which allows higher level of hardware compatibility.
þFlash BIOS for a more easy upgrade path.
þUp to 4 each 168-pin DIMM sockets, supports up to 512MB SDRAM or 1GB with EDO DRAM.
þOne Accelerated graphic port (AGP) for AGP card.
þThree 16-bit ISA expansion slots and four 32-bit PCI expansion slots.
þIntegrated two PCI bus master Ultra IDE controller with two on-board connectors supports up to
four IDE devices such as Hard Disk, CD-ROM or Tape Backup drives.
þIntegrated super I/O chipset featuring one floppy disk controller, two 16550 UART compatible
serial ports, one high speed EPP/ECP capable parallel port, one Infra Red port.
þATX form factor board with size 305 x 244mm

Motherboard Installation
Page 2
A
B
C
D
E
G
H
I
K
N
O
L
P
Q
J
S
JP9
REV. 1.00
JP17
JP12
JP11
SPEAKER SMI POWER
LED
IDE
LED
PWR ONRESETTB_LED
JP2
JP3
JP4
JP5
JP21
BIOS
PCI 4
PCI 3
PCI 2
PCI 1
AGP
ISA 1
ISA 3
ISA 2
CPU SLOT
BOTTOM:
KEYBOARD
USB
COM2
PARALLEL
COM1
TOP:
MOUSE
POWER
SOCKET
FLOPPYSECONDARY IDE
PRIMARY IDE
6MLX
CPU
FAN
DIMM 4
DIMM 3 DIMM 2 DIMM 1
440LX
82371
D
F
R
M
JP2
JP3
JP18
Fig.1 Parts Location on the Motherboard

Motherboard Installation
Page 3
QUICK REFERENCE OF YOUR
MOTHERBOARD
APS/2 Keyboard / Mouse Connectors K. Infra-Red (IR) Connector
BUniversal Serial Bus (USB) Connectors L. IDE device connector
CExternal I/O Connectors M. Integrated I/O Controller
DPENTIUM II CPU Card Slot N. Intel SB82371AB Chipset
EAccelerated Graphic Port (AGP) O. 3.3v DIMM Sockets
FPCI Add-in Board Connectors P. Floppy Drive Connector
GISA Add-in Board Connectors Q. Intel SB82443LX Chipset
HFlash BIOS R. CPU FAN Connector
IFront Panel Function Connectors S. ATX Power Supply Connector
J3V Lithium Battery
ATX Form Factor Motherboard
ATX is an evolution of the popular Baby-AT form-factor defined to address four major areas of
improvement over today’s predominant form factors: enhanced ease-of-use, better support for current
and future I/O and better support for current and future processor technology.
This motherboard is designed to fit into a standard ATX form factor chassis in that the outer
dimensions are 12" x 9.6" (30.48 cm x 24.38 cm). The location of I/O connectors, CPU socket, PCI
and ISA slots, and mounting holes are also strictly based on the ATX specification.
By simply rotating the board through 90 degrees (with respect to baby -AT form factor) within the
chassis, the end-user gains a great deal in ease-of-use and improved functionality.
•With the processor relocated, all expansion slots can be full-length.
•Since the processor is not located between or under the add-in cards, a processor upgrade
can now be performed without removing the installed cards.
•The SIMM connectors can be relocated away from the expansion bays and slots, increasing
ease-of-use by giving easy access to the user for memory upgrades, and increasing the total
number of available full length slots.
•The use of only one fan within the system reduces noise levels.
•More I/O is integrated onto the baseboard, improving reliability and reducing the number
of cables.
•Disk I/O connectors are located closer to the peripheral bays, reducing cable lengths. This
reduces the clutter in the chassis and allows the use of faster hard disk drives.
•With increased ease of use, and a reduction in cable complexity, the technical support burden is
lowered.

Motherboard Installation
Page 4
[A] PS/2 Keyboard / Mouse Connectors
PS/2 device, likes some PS/2 keyboard and mouse, are all have a standard 6-pin round shape
connector. The benefit of PS/2 device is one of the serial port may be free for other serial device such
as writing table. On this motherboard, there are two on-board PS/2 connectors, one for keyboard and
one for mouse, which saves your money to buy any optional PS/2 connector module. If you are using a
PS/2 mouse or keyboard, you can simply plug into the corresponding connector without any jumper
setting.
[B] USB Connectors
Universal Serial Bus (USB) is new interface standard for any I/O device “Outside the Box”. USB
makes your peripherals have a real plug and play (PnP) capabilities with up to 12Mb/sec data speed In
the coming soon, any external device connected to your computer will be standardized into USB
standard which are all have a special 4-pin rectangle shape connector. Therefore, with the Intel
chipset, this motherboard builds two USB connectors on-board for you future investment.
[C] External I/O Connectors
Based on the ATX standard, two 9-pin serial ports and one 25-pin parallel port are now built on the
motherboard back panel, too! This design makes your motherboard’s installation more easily. The
parallel port can be BIOS configured into standard (SPP) mode, Enhanced Parallel Port (EPP) mode,
and a high speed Extended Capabilities Port (ECP) compatible mode. EPP Mode requires a driver
provided by the peripheral manufacturer in order to operate correctly.
[D] PENTIUM II®Slot 1
The slot 1 is a 242-pin slot design for PENTIUM II, single edge contact cartridge, along with a
programmable voltage regulator for the CPU core. It provides users with a performance upgrade path
to PENTIUM II®OverDrive technology. The motherboard built-in a switching voltage regulator
which supports from 2.1V to 3.5V PENTIUM IIprocessors running at 233, 266 MHz. The regulator
makes use of the VID capabilities to automatically adjust its voltage output to match that of the
installed processor, which eliminated the traditional jumper settings.
PENTIUM II PROCESSOR CARD
The PENTIUM IIprocessor integrates second level cache and cache controller that
was previously implemented on the motherboard. The internal non-blocking L2 cache
on the 233, 266 MHz processors card is 512k KB cache.
The PENTIUM II®processor card maintains full backward compatibility with the
8086, 80286, Intel386TM, Intel486TM and Pentium®processors. It also has a numeric
coprocessor that significantly increases the speed of floating point operations, while
maintaining backward compatibility with the i486DX math coprocessor and complying
with ANSI/IEEE standard 754-1985.
[E] Accelerated Graphic Port (AGP)
The AGP is compatible with the Accelerated graphics port specification. The AGP offers a much
higher throughput over the PCI bus does. PCI currently only supports 33Mhz can transport 133MB/s
at peak rates over its 32bit data bus. AGP is clocked with 66Mhz, which enables a peak rate of 266
MB/s at the classic so called ‘X1’ mode. If using the ‘X2’ mode, it can transport up to 532MB/s at
peak rate.
[F] PCI Add-in Board Connectors
This motherboard provides four 32 bit PCI slots with up to 133MB/sec burst data transfer rate.

Motherboard Installation
Page 5
[G] ISA Add-in Board Connectors
This motherboard provides three 16 bit ISA slots which allows backward hardware compatibility.
[H] Flash BIOS
The flash BIOS allows user have more flexibility to upgrade their motherboard. The flash BIOS can
be programmed by software easily. For the latest BIOS upgrade information, please feel free to visit
our web site: http://www.zida.com.
[I] Front Panel Function Connectors
The integrated Real Time Clock (RTC) provides a time of day clock for the system board, a 100-year
calendar with alarm features, and a century register. The internal nonvolatile CMOS RAM can
operate over 10 years in the absence of power. The RTC allows user to adjust the time, calendar, and
alarm through the BIOS setup. For more detailed information, please refer to the Chapter of BIOS
Setup.
[J] 3V Lithium Battery
An on-board battery holder is used to hold a 3 Volts CR-2032 Lithium battery which makes the
battery’s replacement more convenient. This battery is used to supply power for the RTC CMOS RAM
in order to save your system setting and date/time counting during system power-off. In general, the
battery’s life-time is about 5 years. If you see a “BIOS checksum error” message happened while
system turn-on, the battery low may cause it. You can try to fix it by simply replaced the battery.
[K] Infra-Red (IR) Support
A 5-pin interface on the front panel I/O connector is provided to allow connection to a Hewlett
Packard HSDSL-1000 compatible Infra-red (IrDA) transmitter/receiver. Once the module is
connected to the front panel I/O header, Serial port 2 can be re-directed to the IrDA module. When
configured for IrDA, the user can transfer files to or from portable devices such as laptops, PDA’s and
printers using application software such as LapLink. The IrDA specification provides for data
transfers at 115kbps from a distance of 1 meter. Support for Consumer Infra Red (ASK-IR) is also
included, please refer to your IR equipment for more detailed information.
[L] IDE Connectors
This motherboard have two independent high performance bus-mastering PCI IDE interfaces capable
of supporting up to Mode 4 devices. The system BIOS supports automatic detection of the IDE device
data transfer rate and translation between different kinds of device mode such as Logical Block
Addressing (LBA) and Extended Cylinder Sector Head (ECSH) translation modes and ATAPI (e.g.,
CD-ROM) devices on both IDE interfaces.
In a true multi-tasking operating systems like Windows95 and WindowsNT, the IDE interface
can operate as a PCI bus master capable of supporting PIO Mode 4 devices with transfer rates of up to
16 MB/sec.
[M] 82371AB PCI/ISA IDE Xccelerator (PIIX4)
The Intel 82371AB is a 392-pin BGA package IC which provides the following features:
•Interface between the PCI local bus and ISA bus.
•Supports for 2 Universal Serial Bus (USB) ports.
•Integrated fast IDE interface, which supports up to 4 devices. With separated
Master/Slave mode support, it provides data transfer rate up to 33 MB/sec in Ultra-
DMA mode. In addition, it also integrated a 8 x 32-bit buffer for Bus Master IDE
PCI burst transfers which further enhanced the system performance.
•Ultra-DMA controller with Fast Type-F DMA
•Counters/Timers, which provides advanced power management with programmable
system management interrupt (SMI).

Motherboard Installation
Page 6
[N] Integrated I/O Controller
On the motherboard, serial ports, parallel port and floppy drive is integrated into a single chip. The
I/O port allows you to configure through the BIOS setup. This integrated I/O chip provides:
•Plug-and-Play, Version 1.0a compatible.
•Built In RTC devices
•Supports two 360K, 720K, 1.2M, 1.44, 2.88M floppy disk drives
•One multi-mode parallel port, which can be configured as standard (SPP) mode,
enhanced (EPP) mode, high speed (ECP) mode.
•Supports two 16C550 compatible enhanced serial ports.
Supports IrDA or ASKIR infra-red interface.
[O] DIMM Sockets
Four 168 pins standard DIMM socket allows your system using either for 3.3V unbuffered SDRAM or
3.3V EDO RAM. However, you can choose only one type of memory for your system use.
[P] Floppy Drive Connector
A 34-pin connector on-board allows connection to two 360K, 720K, 1.2M, 1.44, 2.88M floppy disk
drives.
[Q] 82443LX PCI Bridge, AGP and Memory Controller (PAC)
The 82443LX comes in a 492 pin BGA package and provides the following features:
•CPU interface control up to 66MHz with true 32-bit addressing.
•Integrated 64/72-bit DRAM controller, supporting from 8 MB to 256MB main
memory.
•Fully synchronous PCI bus interface with 25/30/33 MHz bandwidth.
•Write data Buffering and supports PENTIUM II -to-PCI burst writes.
[R] CPU FAN Connector
The CPU FAN connector allows you attach your CPU card fan here.
[S] ATX Power Supply Connector
Based on the ATX specification, one 20-pin power connector covers all the required power sources,
±5V, ±12V and ±3.3V, with soft-touch button power on/off features. This connector reduces the
installation time and minimizes the chance of defects caused by incorrect connection

Motherboard Installation
Page 7
MOTHERBOARD INSTALLATION
Installation Precautions
During installation and initial test, use caution to avoid personal injury and damage to wiring due to
sharp pins on connectors and printed circuit assemblies, rough chassis edges and corners, and hot
components. Adhere to warnings and limitations regarding accessibility into areas designated only for
authorized technical personnel.
A Quick Introduction
To Install and operate your the new motherboard, you must follow the steps below:
1. Set Jumpers on the motherboard
2. Install the CPU with cooling fan
3. Install RAM modules
4. Connect cables, wires and power connector
5. Install expansion cards
Jumpers Setting
There are several user-adjustable jumpers on the board, which allow you to configure your system to
match your requirements. This chapter contains the information on the various jumpers settings and
connector on your motherboard.
Jumpers
Jumpers are used to make several hardware settings on the motherboard. From the “Map of the
Motherboard” shown above, you can identify the location of the jumpers. There are two kinds of
jumper on-board, 2-pin jumper and 3-pin jumper. On the symbol of jumper likes “ ”, “ ”
inside stands for pin 1. To set a jumper, a black cap containing metal contacts is placed across the
jumper pin/s according to your required configuration. The jumper settings will also be described
numerically such as [open] for open, [short] for short, [1-2] for connect pins 1&2, [2-3] for connects
pins 2&3 respectively.
Black cap
Onboard
jumper
Pin 1 symbol on
the silk screen
Pin 1 Pin 3Pin 2
CAUTION
Users are not recommended to change any jumpers in it’s default setting listed on this
User’s Guide. Changing the jumper settings improperly may affect the system
performance.

Motherboard Installation
Page 8
The following figure is a completed “Map of the Onboard Jumpers” for the onboard jumpers (JP).
JP9
REV. 1.00
JP17
JP12
JP11
SPEAKER SMI POWER
LED
IDE
LED
PWR ONRESETTB_LED
JP2
JP3
JP4
JP5
JP21
BIOS
PCI 4
PCI 3
PCI 2
PCI 1
AGP
ISA 1
ISA 3
ISA 2
CPU SLOT
BOTTOM:
KEYBOARD
USB
COM2
PARALLEL
COM1
TOP:
MOUSE
POWER
SOCKET
FLOPPY
SECONDARY IDE
PRIMARY IDE
6MLX
CPU
FAN
DIMM 4
DIMM 3 DIMM 2 DIMM 1
440LX
82371
JP2
JP3
JP18
Fig.2 Map of the Onboard Jumpers

Motherboard Installation
Page 9
CPU Speed Selection
•JP2-JP5 for frequency ratio setting
The table below shows the jumper setting for the CPU based on its internal clock speed.
Internal
CPU speed
(MHz)
External
Bus JP2 JP3 JP4 JP5 Frequency Ratio
233 66MHz [open] [open] [close] [close] 3.5x
266 66MHz [close] [close] [open] [close] 4x
300 66MHz [open] [close] [open] [close] 4.5x
333 66MHz [close] [open] [open] [close] 5x
Voltage Regulator Output Selection
As mentioned before, the on-board regulator makes use of the VID capabilities to automatically adjust
its voltage output to match that of the installed processor. Therefore, jumper setting is no longer
required for this item on PENTIUM II CPU.
CMOS Reset
If you want to reset the CMOS data, you need to turn off the main power switch of the system power
supply and remove the jumper and reinstall it. After the CMOS reset, all the system BIOS
configuration will lose at all and please re-enter the CMOS setup screen to setup the system again.
Jumper JP11
Normal 1-2
Reset 2-3
Other Jumpers
JP16 and JP17 are for Flash BIOS type select. The normal setting for all Flash ROM is 1-2.
Jumper Default Setting
JP16, JP17 1-2

Motherboard Installation
Page 10
CPU CARD INSTALLATION
The motherboard provides a 242-pin CPU card slot. The CPU card should have a fan attached to it to
prevent overheating. If this is not the case then purchase a fan before you turn-on the system. There
are two CPU fan power connector, JP2 and JP3, on-board.
CPU
COOLING
FAN
+12V (Red)
Ground (Black)
J3J2
Fig. 3 CPU Cooling Fan Installation Diagram
CAUTION
Without an effective cooling fan, the CPU can overheat and cause damage to both the
CPU and the motherboard.
CPU Cooling fan Connector
J2 and J3 provide the +12 Volts d.c. for your CPU cooling fan
J2 and J3 Pin Signal Name
1Ground
2 +12V
3Ground

Motherboard Installation
Page 11
INSTALLING SYSTEM MEMORY (RAM)
The motherboard supports four 168-pin DIMM. The four 168-pin DIMM sockets are divided into four
banks and each bank can accept either 3.3v EDO DRAM or SDRAM module but you can only choose
one type of DRAM use on your system.
3.3V Key
Unbuffered
DRAM Key
Push to remove
DIMM module
Push to remove
DIMM module
64 Bit 168 PIN DIMM Module
Vertically insert
for installation
Fig. 4 168-Pin DIMM Module Installation Diagram
Expansion Cards Installation
At the most of beginning, you must read your expansion card documentation on any hardware and
software settings that may be required. The installation procedures are summarized as below:
1. Read the User’s Guide/Manual of your expansion card.
2. If necessary, set any jumpers on your expansion card.
3. Power-off the system and then disconnected the power cord.
4. Remove your computer’s cover.
5. Remove the metal bracket from one of the empty slot, ISA or PCI, corresponding to the
type of expansion card.
6. Carefully align the card’s connectors and press firmly, make sure at the connection is
good.

Motherboard Installation
Page 12
7. Secure the card on the slot.
8. Replace the computer’s cover.
9. Setup the BIOS configuration if necessary.
10. Install the required software drivers for your expansion card.
CAUTION
Before adding or removing any expansion card or other system components, make sure
that you unplug your system power supply. Failure to do so may cause damage of your
motherboard and expansion cards.
Connecting External Connector
Power Connector
PW1, single 20-pin connector incorporates standard ±5V and ±12V, optional 3.3V and soft-power
signals. With a power supply, supports remote power on/off, the motherboard can turn off the system
power through software control, such as the shutdown in Windows 95 Start menu. The system BIOS
will turn the system power off when it receives the proper APM command from the OS. APM must be
enabled in the system BIOS and OS in order for the soft-off feature to work correctly.
Pin Signal Name Pin Signal Name
1+3.3V 11 +3.3V
2+3.3V 12 -12V
3Ground 13 Ground
4+5V 14 PW_ON
5Ground 15 Ground
6+5V 16 Ground
7Ground 17 Ground
8PWRGOOD 18 -5V
9+5VSB 19 +5V
10 +12V 20 +5V
From ATX Regulated
Power Supply 6DXP Motherboard
ATX Power Connector Connector's Lock
(push to release)
PW1
Onboard receptacle
Fig.5 ATX Power Connector Installation

Motherboard Installation
Page 13
Floppy Drive Connector
This 34-pin connector supports the provided floppy drive ribbon cable. After connecting the single
end to the on-board “FLOPPY” connector, connect the remaining plugs on the other end to the floppy
drives correspondingly.
IDE Connector
The two on-board IDE connectors supports the provided 40-pin IDE hard disk ribbon cable. After
connecting the single end to the board, connect the two remaining plugs at the other end of your hard
disk(s). If you install two hard disks, you must configure the two drives by setting its jumpers
according to the documentation of your hard disk. Also, you may connect the two hard disks to be
both Masters using one ribbon cable on the primary IDE connector and one on the secondary IDE
connector.
NOTICE
For the flat ribbon cable connection, please make sure that the pin 1 of the ribbon
cable (the red wire side of the cable) is correctly connected to the on-board
connector’s pin 1 as shown on the “Map of the Motherboard”.
Front Panel Function Connector
All the front panel indicator, speaker, and switch functions are grouped into a on-board 26-pin
connector, JP20. Front panel features supported include:
•System Reset, RESET
•Power LED, form KEYLOCK
•Hard Drive activity LED, IDE LED
•System Speaker, SPEAKER
•Soft-touch button power on/off, SW ON
•Turbo LED, TBLED
•External power saving control, EXTSMI (optional)
The connector pin out are described as the figure below:
KEY
LOCK
KEYLOCK
SPEAKER EXTSMI
TBLED RESET SW ON IDE LED
JP13
13
26 14
GND
GND
VCC SPKR
PW LED
GND GND
EXT
SMI
GND
VCC RST
GND
PUSH ON
GV VR
IDE
LED
GND
Fig.6 The Onboard Function Connector Pin Out

Motherboard Installation
Page 14
About Soft Touch Power Button
For the ATX system case, the new soft touch power button replaces the main power switch to switch
ON / OFF your system. You can switch the system ON by pressing the button. If you want to switch
OFF your system, press the button and hold it for 4 seconds. You can also change the functions of the
power button in the CMOS setup at power management section.
Infra-Red connector
Serial port 2 can be configured to support an IrDA module via a 5-pin header connector. Once
configured for IrDA, the user can transfer files to or from portable devices such as laptops, PDA’s and
printers using application software such as LapLink. The IrDA specification provides for data
transfers at 115 Kbps from a distance of 1 meter. Consumer IR is also supported by the same
connector.
J15 Pin Signal Name
1VCC, power source
2N/C
3IRRX, infra-red receive
4N/C
5IRTX, infra-red transmit
I/O Back Panel Connectors
The I/O back panel allows external access to PS/2 keyboard and mouse connectors as well as two
serial ports, and one parallel port, which are integrated on the motherboard. The following figure
showed the location of the I/O connectors.
(FRONT VIEW)
PARALLEL
COM 1 COM 2
PRINTER
PS/2 MOUSE
KEYBOARD
USB CONNECTOR
PS/2 Plug
PS/2 MOUSE
KEYBOARD
USB Plug
USB CONNECTOR 1
USB CONNECTOR 2
SERiAL SERiAL
Fig.7 I/O Back Panel Connector Installation Diagram for PS/2 and USB

Motherboard Installation
Page 15
SERIAL SERIAL
PRINTER Onboard Back
I/O Connector
26-pin Parallel Port
(Male) connector 26-pin (Female)
Connector
SERIAL MOUSE
EXTERNAL MODEM
PARALLEL
Onboard Back
I/O Connector
9-pin Seriall Port
(Female) connector
9-pin (Male)
Connector
COM 1 COM 2
Fig. 8 I/O Back Panel Connector Installation Diagram for Serial and Parallel Ports

Motherboard Installation
Page 16
Chapter 2
AMIBIOS Setup
AMIBIOS Setup is a setup program to access the system information stored in
CMOS RAM.
Starting AMIBIOS Setup
As POST executes, the following appears:
Hit <DEL> if you want to run SETUP
Press <Del> to run AMIBIOS Setup.

Motherboard Installation
Page 17
SECTION 1
SETUP
STANDARD SETUP
The Standard Setup options described in this section are selected by choosing
the Standard icon from the Setup menu selection screen. The selection
window is shown below.
Date / Time
Select the Standard option. Select the Date and Time icon. The current values
for each category are displayed. Enter new values through the keyboard.
Floppy A
Floppy B
Move the cursor to these fields via ↑and ↓and select the floppy type. The
settings are 360KB/inch, 1.2MB/inch, 720KB/inch, or 1.44MB/inch.
Pri Master/Slave
Sec Master/Slave
Choose these icons to configure the hard disk drive named in the option. When
you click on an icon, the following parameters are listed: Type, LBA/Large
Mode, Block Mode, 32Bit Mode, and PIO Mode.
Configuring an MFM Drive
If configuring an old MFM hard disk drive, you must know the drive
parameters Choose Type and choose the appropriate hard disk drive type (1 -
46).
User-Defined Drive
If you are configuring a SCSI drive or an MFM, RLL, ARLL, or ESDI drive
with drive parameters that do not match drive types 1-46, you must select User
in the Type field. You must then enter the drive parameters on the screen that
appears. The drive parameters include:
Configuring IDE Drives
If the hard disk drive to be configured is an IDE drive, select the appropriate
drive icon (Pri Master, Pri Slave, Sec Master, or Sec Slave). Choose the Type

Motherboard Installation
Page 18
parameter and select Auto.
AMIBIOS automatically detects the IDE drive parameters and displays them.
Click on the OK button to accept these parameters.
Click on LBA/Large Mode and choose On to enable support for IDE drives
with capacities greater than 528 MB.
Click on Block Mode and choose On to support IDE drives that use Block
Mode.
Click on 32Bit Mode and click On to support IDE drives that permit 32-bit
accesses.
Click on PIO Mode to select the IDE Programmed I/O mode. The settings are
Auto, 0, 1, 2, 3, 4, or 5.Click on Auto to allow AMIBIOS to automatically
choose the PIO mode that the IDE drive being configured uses. If you select 0-
5you must make absolutely certain that you are selecting the PIO mode
supported by the IDE drive being configured.
Configuring a CD-ROM Drive
Select the appropriate drive icon (Pri Master, Pri Slave, Sec Master, or Sec
Slave). Choose the Type parameter and select CDROM. You can boot the
computer from a CD-ROM drive.