AZZA PT-6IET User manual

PT-6IET
PT-6ILT
PENTIUM II
AT MAINBOARD
USER’S MANUAL
DOC NUMBER UM-ILT-E1 .................................................................PRINTED IN TAIWAN

440EX/LX
AT
PENTIUM II MAINBOARD
USER’S MANUAL
DOC NUMBER UM-ILT-O1 .................................................................PRINTED IN TAIWAN

440EX/LX AT MAINBOARD TABLE OF CONTENTS
i
TABLE OF CONTENTS
Chapter & Section Page
1. INTRODUCTION ...........................................................................................1-1
1.1 OVERVIEW .................................................................................................1-1
1.2 MAINBOARD LAYOUT ...........................................................................1-2
1.3 SPECIFICATIONS......................................................................................1-3
2. INSTALLATION.............................................................................................2-1
2.1 UNPACKING ...............................................................................................2-1
2.2 AMAZING WAYS TO POWER ON THE PC SYSTEM........................2-2
2.3 POWER OFF THE PC SYSTEM..............................................................2-4
3. HARDWARE SETUP ....................................................................................3-1
3.1 INSTALLING THE DRAM MODULES................................................3-1
3.2 CONNECTORS............................................................................................3-3
3.3 JUMPERS .....................................................................................................3-17
4. AWARD BIOS SETUP .................................................................................4-1
4.1 GETTING STARTED ................................................................................4-1
4.2 MAIN MENU...............................................................................................4-2
4.3 CONTROL KEYS.......................................................................................4-2
4.4 STANDARD CMOS SETUP.....................................................................4-3
4.5 BIOS FEATURES SETUP ........................................................................4-4
4.6 CHIPSET FEATURES SETUP ................................................................4-6
4.7 POWER MANAGEMENT SETUP..........................................................4-9
4.8 INTEGRATED PERIPHERALS ..............................................................4-13
4.9 PNP/PCI CONFIGURATION ...................................................................4-14
4.10 LOAD SETUP DEFAULTS ....................................................................4-18
4.11 SUPERVISOR PASSWORD / USER PASSWORD ...........................4-19
4.12 IDE HDD AUTO DETECTION.............................................................4-19
4.13 SAVE & EXIT SETUP............................................................................4-20
4.14 EXIT WITHOUT SAVING.....................................................................4-21
1

440EX/LX AT MAINBOARD
ii
SOMETHING IMPORTANT !
¶TRADEMARKS
All trademarks used in this manual are the property of their respective owners.
¶LOAD SETUP DEFAULTS
“LOAD SETUP DEFAULTS” is the function which will have the BIOS default
settings loaded into the CMOS memory, these default settings are the best-case
values that should optimize system performance and increase system stability .This
function will be necessitated when you receive this mainboard, or when the system
CMOS data is corrupted. Please refer to the Section 4-10 for the details.
¶DISCHARAGE CMOS DATA
Whenever you want to discharge the CMOS data or open the system chassis, Make
sure to disconnect the AC power first because there is always the 5V standby voltage
connected to this mainboard when using an ATX switching power supply. Without
disconnecting the AC power connector from the PC system, the mainboard may be
damaged by any improper action . Please refer to the Section 3-3 for details.
¶WAKE ON LAN
In order to support the Wake On LAN feature, the system requires a ATX type SPS
(switching power supply), Such power supply must be able to provide at least 700
mA of driving capability on the “5V standby” voltage. Please refer to the Section 3-3
for details.
¶WARNING !
The "Static Electricity" may cause damage to the components on the mainboard, In
order to avoid the damage to the mainboard accidentally, please discharge all static
electricity from your body before touching this mainboard.
¶NOTICE
Information presented in this manual has been carefully checked for reliability;
however, no responsibility is assumed for inaccuracies. The information contained in
this manual is subject to change without notice.

440E/LX AT MAINBOARD INTRODUCTION
1-1
1. INTRODUCTION
1.1 OVERVIEW
This Mainboard is a high performance Pentium™ II personal computer mainboard with
66MHz ultra high Front Side Bus (FSB) frequency. It is an AT form-factor mainboard
with A.G.P. (Accelerated Graphics Port) and PCI Local Bus on board, Designed based
on the Intel® 82440EX or 82440LX AGPset™ system chipset.
When the 440LX chipset is installed on the board, it will be the PentiumTM II LX
mainboard. When the chipset on the mainboard is 440EX, it will become PentiumTM II
EX mainboard. The difference between LX and EX on this mainboard is LX mainboard
supports ECC feature in the memory subsystem, while EX board doesn’t.
The Winbond® I/O chipset is built on the board and it has built-in two channel “PIO”
and “Ultra DMA/33 Bus Master” mode PCI IDE ports, one Floppy Disk control port,
two high speed Serial ports (UARTs) and one multi-mode Parallel port and supports
PS/2™ mouse, IR and USB ports. It is designed to fit a high performance Pentium™ II
or Celeron™ processor 233 MHz, 266 MHz, 300 MHz, 333MHz and up to 366MHz
based solution for high-end and true GREEN-PC computer systems.
The Pentium™ II or Celeron™ Processor is a 64-bit processor with RISC technology,
which offers several key features such as built-in 128/256KB/512KB L2 cache (some
Celeron does not have L2 cache), 12-stage super-pipeline architecture, out of order
execution .... etc. In order to optimize of its performances, the 32-bit Operating System
(such as Windows® NT and OS/2™) and 32-bit applications are recommended.
The Accelerated Graphics Port (A.G.P.) on the mainboard is designed for AGP 3D
video display card. Unlike PCI-based display cards, the AGP technology provides
lightning data throughput to fully facilitate the 3-Dimensional and multimedia graphics
display. The data transfer rate on AGP can be up to 133Mhz and which is much faster
than the traditional 33MHz PCI VGA card.
The AGP is a new video display technology and it requires device driver or new
Operating System to enable this accelerated graphic feature. Windows® 98 supports
AGP directly but Windows® 95 still need the appropriate device drivers to support
AGP feature. Please don’t worry about the device driver, because you can always find
the device driver included in the AGP card.

440EX/LX AT MAINBOARD INTRODUCTION
1-2
1.2 MAINBOARD LAYOUT
CN4
KB CON.
CN5 AT POWER CON.
BAT 1
COM B
CN1
PS/2
MS.
COM A
SYS. BIOS
+
-
CN10CN11
CN6 ATX POWER CON.
DIMM 1
DIMM 2
CN12 IDE 2
CN 13 IDE 1
SLOT1
CN 7 FDC
CN 9 LPT
CN 2
CN 16
CN 15
CN 14
CN17CN18
CN 19
RS
HL TL SL
PW
PL KBLOCK
SPKR
JP 7
JP 8
JP 9 JP 3
JP 4 JP 5 JP 6
JP 11 CN 8
U4
U10

440EX/LX AT MAINBOARD INTRODUCTION
1-3
1.3 SPECIFICATIONS
¥CPU
Intel® Pentium™ II and Celeron™ processor 233MHz, 266MHz, 300MHz,
333MHz and up to 366MHz.
¥CPU VCC
Switching mode Voltage Regulator circuits on board, supports +1.80V DC through
+3.5V DC CPU Core Voltage.
Note : The CPU Core Voltage will be Detected and adjusted automatically by the
mainboard, so there is no jumper setting required to select the CPU
voltage.
¥WORD SIZE
Data Path : 8-bit, 16-bit, 32-bit, 64-bit
Address Path : 32-bit
¥PC SYSTEM CHIPSET
Intel® 82440EX or 82440LX AGPset™
¥SUPER I/O CHIPSET
Winbond® W83977TF (optional: W83977TF-AW / W83977ATF/ W83977CTF )
¥FRONT SIDE BUS FREQUENCY
66 MHz /68 MHz, it can be selected by CMOS setup
¥MEMORY
DRAM : Two 168-pin DIMM sockets are designed onboard, Maximum memory
size can be up to 256 MB., support 8, 16, 32, 64 or 128MB 3.3V
unbuffered EDO or SDRAM DIMM module ( 440LX supports ECC) .
¥CACHE :512KB pipelined burst SRAM built-in Pentium™ II processor.
0KB or 128KB SRAM in Celeron™ processor.
¥BIOS
AWARD System BIOS. 128KB x 8 Flash ROM
(Supports Plug & Play, ACPI, DMI and Green functions).
¥EXPANSION SLOTS
AGP Slots : 32-bit x 1 (Supports 1x or 2x AGP graphics cards)
PCI Slots : 32-bit x 3 ( All Master/Slave, PCI 2.1 Compliant )
ISA Slots : 16-bit x 3 (One of the slot is PCI/ISA shared)

440EX/LX AT MAINBOARD INTRODUCTION
1-4
¥WOL PORTS
One WOL connector supports Wake-On-LAN (WOL up-designed)
¥SB-LINK PORTS
One SB-LINK feature connector to support PCI sound cards. (such as Creative™
Labs EMU8008 sound chip)
¥USB PORTS
Two Universal Serial Bus (USB) ports.
¥IDE PORTS
Two channels of Ultra DMA/33 Bus Master IDE ports, which will support up to 4
IDE devices like IDE hard disk, ATAPI CD-ROM etc. The IDE ports can be
programmed to support PIO Mode 4, DMA mode 2 and Ultra DMA/33.
¥SUPER I/O PORTS
1. Two high speed NS16C550 compatible serial ports (UARTs).
2. One parallel port, supports SPP/EPP/ECP mode.
3. One Floppy Disk Control port.
¥IR PORT
One HPSIR and ASKIR compatible IR transmission connector (5-pin).
One Consumer IR transmission connector (4-pin, optional).
¥MOUSE AND KEYBOARD
One PS/2™ mouse connector, One AT type keyboard connector.
(PS/2™ type connector is optional )
¥HARDWARE MONITORING (optional)
GL518SM (U4) is designed on the board to monitor hardware healthy status like
system voltage, system temperature, and cooling fans. When the CPU is over
heated, the system BIOS will tell the system board to give a series of beeping alarm
and then slow down the CPU speed so that you can take proper action to prevent
damage to your system. When you hear the beeping alarm, be sure to turn the power
off and open the chassis immediately, check on the cooling fans (especially the
CPU cooling fan ) to see whether it is working properly or not. If you don’t know
how to handle it, send the PC system to your dealer for technical support.

440EX/LX AT MAINBOARD INTRODUCTION
1-5
This mainboard also provides the hardware monitoring program so that you can
monitor the healthy status of your PC system. When you find there is the GL518SM
(U4) installed on the board, you can run the hardware monitoring program and then
it will inform you the system status all the time.
¥ACPI ( This feature is valid only when ATX power is connected )
Advanced Configuration and Power Interface (ACPI) function is strongly
recommended by PC’98 because it will let you have many additional features and
that will make your PC system becomes very friendly and convenient. Followings
are the ACPI features designed on the board:
1. Power on the system by panel-switch
2. Power on the system by RTC alarm
3. Power on the system by modem Ring-in signal
4. Power on the system by LAN signal.( Wake On LAN )
5. Power off (soft-off) by OS or Panel-switch.
6. CPU cooling fan auto-off during Suspend state.
7. Resuming of PC system. (such as Modem ring-in, RTC alarm, .... etc.)
8. Supports Full-On/Doze/Standby/Suspend operating modes.
¥DIMENSION
1. Width & Length : 220 mm x 240 mm.
2. Height : 2 1/2 inches with CPU Retention Mechanism.
3. PCB Thickness : 4 layers, 0.05 inches normal.
4. Weight : 18 ounces.
¥ENVIRONMENT LIMIT
1. Operating Temperature : 10to 40. (50to 104)
2. Required Airflow : 50 linear feet per minute across CPU.
3. Storage Temperature : - 40to 70. (- 40to 158)
4. Humidity : 0 to 90% non-condensing.
5. Altitude : 0 to 10,000 feet.

440EX/LX AT MAINBOARD INSTALLATION
2-1
2. INSTALLATION
2.1 UNPACKING
The mainboard contains the following components in the package. Please inspect the
following contents and confirm that everything is there in the package. If anything is
missing or damaged, call your supplier for instructions before proceeding.
lThis mainboard.
lOne USER‘S MANUAL.
lOne Cable set for IDE and Floppy devices.
lOne Pentium™ II Processor Retention Mechanism (RM).
lOne CD diskette for device drivers and utility programs.
This mainboard contains electrostatic sensitive components and it can be easily
damaged by static electricity. So please leave it sealed in the original packing until
when installing.
A grounded anti-static mat is recommended when unpacking and installation. Please
also attached an anti static wristband to your wrist and have it grounded to the same
point as the anti-static mat.
After the opening of the mainboard carton, please observe the mainboard carefully to
make sure there is no shipping and handling damage before you can start to install the
PC system.

440EX/LX AT MAINBOARD INSTALLATION
2-2
2.2 AMAZING WAYS TO POWER ON THE PC SYSTEM
You can connect either AT or ATX power supply to this mainboard. When the ATX
power supply is connected, there are many ways to power on the system. Please read
the following description for all the details.
POWER BUTTON
The power button on the front panel is not only for power-on and power-off the PC
system. It can programmed by COMS setup program and it has different features.
Please refer to Section 3-2 (page 3-14, 3~15) for the detail of function description.
¨RTC ALARM
PC system can be waked up by the RTC setting in the CMOS. You can set the
alarming date and time in the RTC memory, When RTC alarms, the PC system will
be triggered and wakes up automatically.
Enable the “Resume by Alarm” selection in the BIOS setup utility, and then input
the accurate date and time in following fields. (the “Resume by Alarm” is located in
the “POWER MANAGEMENT SETUP”, please refer to Section 4-7), Having
stored the RTC alarm setting, the PC system will be turned on automatically
according to the date and time which is recorded in the CMOS memory.
When you have finished the BIOS setting, you have to reboot the PC system and
wait for the POST (Power On Self Test) is completed to enable the RTC alarm.
¨MODEM RING-IN
Everyone knows that a PC system can be used as a fax machine to send or receive
fax messages. But most people still use fax machine to receive their messages
because it is not practical to have the system powered on all day long waiting for
the incoming messages. Now the problem can be solved by using this mainboard. It
can be triggered by a modem ring-in signal. When you have a external modem
installed, you can leave the PC system power off. Whenever there is the incoming
message, the PC system will be triggered by the ring-in signal and wake up
automatically to receive the message for you. From now on, you can tell your PC
system to receive the fax message for you.

440EX/LX AT MAINBOARD INSTALLATION
2-3
In order to use the ring-in signal to wake up your PC system, you will have to use
the EXTERNAL MODEM and have it connected to one of the SERIAL PORTS
( COMA or COM B ). When the system power is off, this mainboard will continue
to detect the serial port status. When it detects the ring-in signal from the serial
port, the system power will be turned on and start to receive the incoming messages
automatically. ( you need to have the software like Award Zero-Volt Data-Suspend
Utility so that you can use the fax utility to receive the incoming fax message ).
To enable the Modem Ring-In feature, you have to run the BIOS setup utility and
enable the “Resume by Ring or LAN” option (it is located in the “POWER
MANAGEMENT SETUP”, please refer to Section 4-7 for the settings). Having
completed the BIOS setup, you have to reboot the PC system so that BIOS can
verify the setting. (the “DMI pool data” will be verified by the BIOS when loading
the operating system). Simply speaking, shut down the PC system and then re-start
the system. The modem ring-in feature will be enabled when the operation system
has been loaded.
Note: This function is not available when using the internal MODEM card.
¨WAKE ON LAN ( WOL )
There is a WOL connector CN14 (see Section 3-2) on the mainboard which is
designed to connect to the signal from a LAN card which supports the Wake On
LAN feature. When such LAN card is installed, you may turn on the PC system
from your remote server and monitor the PC status.
To enable this feature, you will have to use the BIOS setup utility to enable the
“Resume by Ring or LAN” (it is located at “POWER MANAGEMENT SETUP”,
please refer to Section 4-7 for the settings). Having completed the BIOS setup, you
have to reboot the PC system so that BIOS can verify the setting. ( the “DMI pool
data” will be verified by the BIOS when loading the operating system). Simply
speaking, reboot the PC system, the Wake On LAN feature will be enabled when the
operation system has been loaded
Note: This function will be disabled if you turn off the power before the system
can verify the DMI pool data.

440EX/LX AT MAINBOARD INSTALLATION
2-4
2.3 POWER OFF THE PC SYSTEM
1. When ATX power supply is connected.
There are two ways to power off the system. They are “Shut Down by Power
Button” and “ Shut Down by OS”. (such as Windows® 95 and Windows® 98,
you can choose the Shut Down from the file menu and the system will be
powered off immediately ).
2. When AT power supply is connected.
You can not use the OS to shut down the PC system, you can only use the power
button (PW switch) to turn the system power off.

440E/LX AT MAINBOARD HARDWARE SETUP
3-1
3. HARDWARE SETUP
Before you can start to install this mainboard, some hardware settings is required to
make sure it will work perfectly with the component which you are going to install in
your PC system. To configure this mainboard is a simple task, only a few jumpers,
connectors, cables and sockets needs to be selected and configured. (For the detailed
locations of each component please refer to page 1-2 “ mainboard layout” )
3.1 INSTALLING THE DRAM MODULES
This mainboard supports 168-pin DIMM sockets, each DIMM can be single-bank or
double-bank It supports two types of DRAM memory and they are either the Extended
Data Out (EDO) or Synchronous (SDRAM) memory. (Both Symmetrical and
Asymmetrical DRAM addressing are supported.) Please note the DIMM modules
suggested on the mainboard must be 3.3V, un-buffered and DRAMs‘ speed must be
either 60ns or 50ns,.
This mainboard has the new technology called SPD (Serial Presence Detect) designed
in the DRAM subsystem. SPD will be available in the future and it is designed to make
system more stabile and compatible. If the DIMM module with this technology is
populated on the mainboard, the system BIOS will gather some information (such as
DRAM type, size, access timing ... etc.) stored in the DIMM module and then BIOS
will determine what operating parameters will be used for the individual populated
DIMM module automatically.
CN4
CN 5
BAT 1
CN
1
SYS. BIOS
+
-
CN10
CN11
CN6
SLOT1
CN 7
CN 9
CN 8
CN 16
CN 15
CN 14
CN17CN18
RS
HL TL
SL PW
PL KBLOCK
SPKR
JP 7
JP 8
JP 9
JP 3
JP 4 JP 5 JP 6
JP 11 CN 8
DIMM 1 ( BANK1+ BANK2 )
DIMM 2 ( BANK2 + BANK3 )
DRAM Subsystem Diagram
CN 19

440EX/LX AT MAINBOARD HARDWARE SETUP
3-2
Picture of DIMM module
In order to increase of the system performance, two suggestions are recommended
when you are installing the DIMM modules :
1. Avoid populating EDO DIMM module and SDRAM DIMM module on the
mainboard at the same time to avoid damage to memory modults.
2. Always install DIMM module starting from DIMM 1 first, and then DIMM2
The DIMM modules for this mainboard are shown in the following tables:
(1) EDO DRAM
DRAM DRAM DRAM TOTAL SIZE
Technology Depth xAddress Singled-Density Doubled-Density
Width Row xCol 1 DIMM 2 DIMMs 1 DIMM 2 DIMMs
16 Mbit 1M x16 10 x10 8 MB 16 MB 32 MB 64 MB
16 Mbit 1M x16 12 x8 8 MB 16 MB 32 MB 64 MB
16 Mbit 2M x8 11 x10 16 MB 32 MB 64 MB 128 MB
16 Mbit 2M x8 12 x9 16 MB 32 MB 64 MB 128 MB
64 Mbit 2M x32 11 x10 16 MB 32 MB 64 MB 128 MB
64 Mbit 2M x32 12 x9 16 MB 32 MB 64 MB 128 MB
64 Mbit 2M x32 13 x8 16 MB 32 MB 64 MB 128 MB
64 Mbit 4M x16 11 x11 32 MB 64 MB 128 MB 256 MB
64 Mbit 4M x16 12 x10 32 MB 64 MB 128 MB 256 MB
64 Mbit 8M x8 12 x11 64 MB 128 MB 128 MB 256 MB

440EX/LX AT MAINBOARD HARDWARE SETUP
3-3
(2) SYNCHRONOUS DRAM
DRAM DRAM DRAM TOTAL SIZE
Technology Depth xAddress Singled-Density Doubled-Density
Width Row xCol 1 DIMM 2 DIMMs 1 DIMM 2 DIMMs
16 Mbit * 1M x16 11 x8 8 MB 16 MB 32 MB 64 MB
16 Mbit * 2M x8 11 x9 16 MB 32 MB 64 MB 128 MB
64 Mbit * 2M x32 11 x9 16 MB 32 MB 64 MB 128 MB
64 Mbit * 2M x32 12 x8 16 MB 32 MB 64 MB 128 MB
64 Mbit * 4M x16 11 x10 32 MB 64 MB 128 MB 256 MB
64 Mbit * 4M x16 13 x8 32 MB 64 MB 128 MB 256 MB
64 Mbit * 8M x8 13 x9 64 MB 128 MB 128 MB 256 MB
64 Mbit ** 2M x32 11 x8 16 MB 32 MB 64 MB 128 MB
64 Mbit ** 4M x16 12 x8 32 MB 64 MB 128 MB 256 MB
64 Mbit ** 8M x8 12 x9 64 MB 128 MB 128 MB 256 MB
Note : * Using the 2-bank SDRAM DIMM modules.
** Using the 4-bank SDRAM DIMM modules.
3.2 CONNECTORS
The connectors on mainboard will be used to connect the accessories or peripheral
devices (such as power, mouse, printer,...etc.). Following is the connectors with its
description and pin assignment which is designed on the mainboard.
(A) BAT1: Battery Socket (Use the 3 Volts Lithium battery : CR2032)
CN4
CN 5
BAT 1
CN
1
SYS. BIOS
+
-
CN10
CN11
CN6
SLOT1
CN 7
CN 9
CN 8
CN 16
CN 15
CN 14
CN17CN18
RS HL TL SL PW
PL KBLOCK
SPKR
JP 7
JP 8
JP 9
JP 3
JP 4
JP 5
JP 6
JP 11 CN 8
CN 19
BAT1: Battery Socket
Pin# Pin name Pin# Pin name
+ Battery Positive - Ground

440EX/LX AT MAINBOARD HARDWARE SETUP
3-4
(B) CN1: PS/2 Mouse and Keyboard Connector
CN4
CN 5
BAT 1
CN
1
SYS. BIOS
+
-
CN10
CN11
CN6
SLOT1
CN 7
CN 9
CN 8
CN 16
CN 15
CN 14
CN17CN18
RS HL TL SL PW
PL KBLOCK
SPKR
JP 7
JP 8
JP 9
JP 3
JP 4 JP 5 JP 6
JP 11 CN 8
CN 19
1
2
3
4
5
Mouse Data
No Connection
Ground
+5V DC
Mouse Clock
CN 1
(C) CN2: CPU Cooling Fan Power Connector
CN4
CN 5
BAT 1
CN
1
SYS. BIOS
+
-
CN10
CN11
CN6
SLOT1
CN 7
CN 9
CN 2
CN 16
CN 15
CN 14
CN17CN18
RS HL
TL SL
PW
PL KBLOCK
SPKR
JP 7
JP 8
JP 9
JP 3
JP 4 JP 5 JP 6
JP 11 CN 8
CN 19
CN 2
CN2 CPU Cooling Fan
Ground
+ 12V DC
Fan Sense Signal
1
2
3
(D) CN3: Keyboard Connectors
Either the PS/2 type (CN3) or the AT type (CN4) keyboard connector can be
installed here, ( only one connector can be installed) The factory default is the AT
type connector installed on the board. When the AT type connector is installed,
CN3 becomes invisible because it is covered by the AT type keyboard connector.

440EX/LX AT MAINBOARD HARDWARE SETUP
3-5
CN4
CN 5
BAT 1
CN
1
SYS. BIOS
+
-
CN10
CN11
CN6
SLOT1
CN 7
CN 9
CN 8
CN 16
CN 15
CN 14
CN17CN18
RS
HL TL
SL
PW
PL KBLOCK
SPKR
JP 7
JP 8
JP 9
JP 3
JP 4 JP 5 JP 6
JP 11 CN 8
CN 19
K/B CONNECTOR:
For PS/2 and AT type connector
AT type connector is on CN4
PS/2 type connector is on CN3 ( inside CN4)
Default: AT type connector installed
Pin assignment of PS/2 keyboard connector: (CN3)
Pin # Signal name Pin # Signal name Pin # Signal name
1 Keyboard Data 3 Ground 5 Keyboard Clock
2 No Connection 4 + 5V DC 6 No Connection
Pin assignment of AT keyboard connector: (CN4)
Pin # Signal name Pin # Signal name Pin # Signal name
1 Keyboard clock 3 No connection 5 Keyboard Clock
2 Keyboard data 4 Ground 6 + 5V DC
(E) CN5: AT Power Connector:
CN4
CN 5
BAT 1
CN
1
SYS. BIOS
+
-
CN10
CN11
CN6
SLOT1
CN 7
CN 9
CN 2
CN 16
CN 15
CN 14
CN17CN18
RS HL
TL SL
PW
PL KBLOCK
SPKR
JP 7
JP 8
JP 9
JP 3
JP 4 JP 5 JP 6
JP 11 CN 8
CN 19
CN 5
AT Power Connector

440EX/LX AT MAINBOARD HARDWARE SETUP
3-6
Pin # Assignment
1●1 Power Good ( Orange )
2●2+5VDC ( Red )
3●3 +12V DC ( Yellow )
4●4 -12V DC ( Blue )
5●5 Ground ( Black )
6●6 Ground ( Black )
7●7 Ground ( Black )
8●8 Ground ( Black )
9●9-5VDC ( White )
10 ●10 +5V DC ( Red )
11 ●11 +5V DC ( Red )
12 ●12 +5V DC ( Red )
Note: There are two connectors from the switching power supply (P8 & P9), Wrong
connection will cause permanent damage to the mainboard. Be sure to make
the power connector correctly all the time. Joint the black cable and then have
the connectors connected to the mainboard.
(F) CN5: ATX Power Connector:
CN4
CN 5
BAT 1
CN
1
SYS. BIOS
+
-
CN10
CN11
CN6
SLOT1
CN 7
CN 9
CN 2
CN 16
CN 15
CN 14
CN17CN18
RS HL
TL SL
PW
PL KBLOCK
SPKR
JP 7
JP 8
JP 9
JP 3
JP 4
JP 5 JP 6
JP 11 CN 8
CN 19
CN6 ATX Power Connector
P8 P9

440EX/LX AT MAINBOARD HARDWARE SETUP
3-7
Pin assignment of ATX power connector
11 1 Pin # Signal name Pin # Signal name
 11 + 3.3V DC 1 + 3.3V DC
 12 - 12V DC 2 + 3.3V DC
 13 Ground 3 Ground
 14 PS-ON 4 + 5V DC
 15 Ground 5 Ground
 16 Ground 6 + 5V DC
 17 Ground 7 Ground
 18 - 5V DC 8 PW-OK
 19 + 5V DC 9 + 5V SB
 20 + 5V DC 10 + 12V DC
20 10
(G) CN7: Floppy Disk Control Port Connector ( using IRQ6, DMA 2):
CN4
CN 5
BAT 1
CN
1
SYS. BIOS
+
-
CN10
CN11
CN6
SLOT1
CN 7
CN 9
CN 2
CN 16
CN 15
CN 14
CN17CN18
RS HL
TL SL
PW
PL KBLOCK
SPKR
JP 7
JP 8
JP 9
JP 3
JP 4
JP 5 JP 6
JP 11 CN 8
CN 19
CN7 FDC Connector