AZZA DIBX4 User manual

DIBX4
Pentium II/III
Celeron
Twin Processor
Intel 440BX ATX MAINBOARD
( VER. 1.x )
USER’S MANUAL
DOC. NO. UM-DIBX4-E1 …………………………………………………..……………..……..…………. PRINTED IN TAIWAN

Ultra 440BX ATX 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 INSTALLATION OF CPU................................................................3-1
3.2 INSTALLING THE DRAM MODULES.......................................3-2
3.3 CONNECTORS..................................................................................3-3
3.4 JUMPERS...........................................................................................3-14
3.5 INSTALLATION OF DEVICE DRIVERS ......................................3-19
3.6 INSTALLATION OF THE ATA/66 IDE INTERFACE..................3-20
4. AWARD BIOS SETUP4-1
4.1 GETTING STARTED.......................................................................4-1
4.2 MAIN MENU ....................................................................................4-1
4.3 CONTROL KEYS.............................................................................4-2
4.4 STANDARD CMOS SETUP ...........................................................4-2
4.5 BIOS FEATURES SETUP...............................................................4-3
4.6 CHIPSET FEATURES SETUP.......................................................4-6
4.7 POWER MANAGEMENT SETUP.................................................4-11
4.8 PNP/PCI CONFIGURATION..........................................................4-16
4.9 INTEGRATED PERIPHERALS .....................................................4-19
4.10 LOAD SETUP DEFAULTS.............................................................4-22
4.11 SUPERVISOR PASSWORD............................................................4-23
4.12 USER PASSWORD...........................................................................4-24
4.13 IDE HDD AUTO DETECTION.....................................................4-26
4.14 SAVE & EXIT SETUP....................................................................4-27
4.15 EXIT WITHOUT SAVING.............................................................4-28

Ultra 440BX ATX 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
which will 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 4.8 for the procedures.
¶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 the ATX form-factor mainboard. Without disconnecting the AC power
connector from the PC system, the mainboard can be damaged by any improper
action .
¶WAKE ON LAN
In order to support the Wake On LAN feature, the system requires a special 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 pin assignment.
¶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.

Ultra 440BX ATX Mainboard INTRODUCTION
1-1
1. INTRODUCTION
1.1 OVERVIEW
This Mainboard is a high performance personal computer mainboard. It is the ATX
form-factor mainboard with both Slot 1 and Socket 370 on the board for various
purposes. The Intel® 82440BX AGPset™ and Winbond® I/O chipset are chosen
as the core logic of the mainboard to give the most outstanding performance and
reliability. It is designed for 233, 266, 300 , 333, 350, 366, 400, 433, 450, 466,
500, 550MHz and higher speed Pentium™ II , Pentium™ IIIand Celeron™
processors
There are four IDE ports on this mainboard and it allows you to connect maximum
eight IDE devices. (There are only two IDE ports on the DIBX2+ mainboard)
Each IDE interface supports the master/slave connection mode and they support
the IDE, EIDE and Ultra DMA (Ultra-ATA) standards. Two of the IDE ports
support the ATA/66 protocol and it makes the data transfer rate of the connected
IDE device amazingly fast.
In order to support the popular devices which will be installed in the PC system,
there are one Floppy Disk control port, two high speed Serial ports (UARTs), one
multi-mode Parallel port, one PS/2™ mouse port, one IR port and two USB ports
designed on the mainboard. When you are connecting the devices like PS/2 mouse,
external modem, printer, floppy disk drive, USB devices .. etc. You don't have to
purchase another interface card. Simply have the related devices connected to the
appropriate interface.
Pentium™ II, Pentium™ IIIand Celeron™ are the 64-bit processorswith RISC
technology, which offers several key features such as built-in 512K/256/128K L2
cache, 12-stage super-pipeline architecture, out of order execution … etc. In order
to optimize of its capabilities and performances, the 32-bit Operating System (such
as Windows® NT and OS/2™) and 32-bit applications are recommended.

Ultra 440BX ATX Mainboard INTRODUCTION
1-2
1.2 MAINBOARD LAYOUT
CN15
Power Connector
USB 1
USB 2
PS/2 Mouse
PS/2 K/B
CN3
COM 1 CN4
COM 2
CN5 Parallel Port
1 2 3 4
1 2 3 4 PWR-LED
SPK
CN13
CPU Fan
“G”= Ground
1
G G G G
1 1 1
RS (Reset Button)
HL (HDD LED)
SL (Sleep LED)
PW (Power SW)
P
WS LH
LR
S
JP9 Clear CMOS
1-2: Normal Setting
2-3: Clear CMOS
SW ( optional)
Select CPU clock ratio.
CN17
Chassis Fan
CN16 WOL
CN11 SB-Link
DIMM3
SLOT1 CPU
AGP SLOT
BIOS
Socket 370
CPU
CN10 IDE 2
CN9 IDE1
DIMM2
DIMM1
BAT1
+
CN8 FDC
CN4 CN3
CN5
JP9
CN17
CN16 WOL
CN11 SB-Link
SW
JP1
JP11
JP100
5
5
U2
CN29 IDE 4
CN28 IDE3
JP11
Vcore Adj.
JP12
Vcore Range.
JP1
KB/Mouse.
Power On
Sel.
JP100 JP133
CN12
IR Port
K/B
PS/2
Mouse
USB2
USB1
COM1 COM2
Parallel Port
IMPORTANT NOTICE:
There are two CPU sockets on the mainboard - the Slot 1 for
Pentium II/III and slot type Celeron Processors. The Socket
370 is designed for socket type Pentium III and Celeron
Processors.You can only install one CPU on this mainboard.

Ultra 440BX ATX Mainboard INTRODUCTION
1-3
1.3 SPECIFICATIONS
¥CPU
Intel® Pentium™ II, Pentium™ IIIor Celeron™ (for Slot and Socket type ) 233,
266, 300, 333. 350, 366, 400, 433, 450, 466, 500MHz and higher speed processors
¥CPU VCC
Switching Voltage Regulator circuits on board, supports +1.30V DC through +3.5V
DC CPU Core Voltage.
Note : The CPU Core Voltage will be Detected and adjusted automatically by the
VID-pin on the CPU, so there is no manual-adjustment required to select the CPU
voltage. Simply plug in the CPU and start immediately.
¥WORD SIZE
Data Path :8-bit, 16-bit, 32-bit, 64-bit
Address Path :32-bit
¥PC SYSTEM CHIPSET
BX mainboard: Intel® 82440BX AGPset™ (82443BX, 82371EB)
¥SUPER I/O CHIPSET
Winbond® W83977EF-AW
¥FRONT SIDE BUS FREQUENCY
66 MHz and 100MHz selectable.
¥MEMORY
BX mainboard:Three 168-pin DIMM sockets, Maximum 384 MB with ECC.
¥BIOS
AWARD System BIOS. 256KB x 8 Flash ROM
(Supports Plug & Play, ACPI, DMI and Green functions).
¥EXPANSION SLOTS
AGP Slots :One 32-bit AGP Slot (Supports 1x or 2x AGP graphics cards)
ISA Slots :One 16-bit ISA slot.
PCI Slots :Four or Five 32bit PCI slots.
(When High Point HPT366 is designed on the board, there will be
four PCI slots, because one of the IRQ will be used by the ATA/66
interface.)
¥WOL PORTS
One WOL connector supports Wake-On-LAN (WOL up-designed)

Ultra 440BX ATX Mainboard INTRODUCTION
1-4
¥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 Ultra DMA/33 (ATA/33)IDE ports and two Ultra DMA/66 (ATA/66) IDE
ports, which will support up to 8 IDE devices like IDE hard disk, ATAPI CD-ROM
and LS-120/ZIP-100 devices.
¥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 PS/2™ keyboard connector.
¥HARDWARE MONITORING (optional)
Winbond W83783S (please refer to U2on page 1-2) is designed on the board to
monitor hardware healthy status like system voltage, system temperature, and
cooling fans. When the CPU temperature is too high, the system BIOS will tell the
system board to give a series of beeping alarm and slow down the CPU speed
(throttling speed) so that you can take proper action to prevent your system from
damage. When you hear the beeping alarm, turn the power off and check on the
mainboard components 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.
There is the hardware monitoring program in the CD which comes with this
mainboard. You can use it to monitor the system healthy status. When you find
there is the W83783S installed on U2, you can run the hardware monitoring
program and then it will monitor the system healthy status all the time.

Ultra 440BX ATX Mainboard INTRODUCTION
1-5
¥ACPI
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. On Now: power on the system by panel-switch, Keyboard, PS/2™ Mouse,
Modem ring-in, RTC alarm or LAN signal.
2. Power off (soft-off) by OS or Panel-switch.
3. Resuming of PC system. (such as Modem ring-in, RTC alarm, .... etc.)
4. Supports Full-On/Doze/Standby/Suspend operating modes.
¥DIMENSION
1. Width & Length :305 mm x 210 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 LIMITATION
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.

Ultra 440BX ATX Mainboard INSTALLATION
2-1
2. INSTALLATION
2.1 UNPACKING
The mainboard contains the following components. 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 driver and utility programs.
lOne floppy diskette for Ultra ATA/66 device driver.
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.
Having finished all the procedures above, you are now ready to install the mainboard to
the chassis. Please make sure that the chassis is the ATX type so that the mounting hole
will match with this mainboard.

Ultra 440BX ATX Mainboard INSTALLATION
2-2
2.2 AMAZING WAYS TO POWER ON THE PC SYSTEM
When the mainboard has been installed successfully, there are several ways to
power on the system. Please read the following description for all the details.
POWER BUTTON
The power button can be programmed by COMS setup program and it has different
features. Please refer to page 3-12 for detail function description.
Note: This power button can not be used to power-on the PC system if the
”Password“ is selected in the "Power On Function" to power on your system.
(please refer to Section 4.9 for the “INTEGRATED PERIPHERALS“ in the
CMOS setup.) However, you can always use the power button to turn off the
power.
¨KEYBOARD (PASSWORD OR HOT KEY)
This mainboard allows you to use your personal password or a combination of hot
key to power on your PC system. When the jumper setting on JP1 is “Enabled”,the
keyboard OnNow function will be activated. Under this circumstance, this
mainboard will keeps scanning the keyboard status waiting for the correct password
or hot key input even when the system power is off (the stand-by 5V is still working
and the power LED on the keyboard is still active). If you have selected the
Password to power on the PC system in the BIOS setup program, the only way to
power on the PC system will be the correct password. ( you can not use the power
button on the front panel to power on the PC system.) When you have selected the
keyboard hot key to power on the PC system, you will be able to use keyboard hot
key to power on the PC system. ( you can use the power button to power on the PC
system as well.) (Please refer to Section 4.9.-"Power On function")
When the “Password” and “Hot KEY” is selected, you will have to reboot the PC
system to activate the setting, when you see the POST (Power On Self Test) is
completed, the setting is changed and stored in the CMOS memory. Having finished
the procedure, you may turn the power off and then you can use the keyboard to
power-on the PC system afterward.
In case that you forget the “Password” or “Hot Key”, disconnect the AC power for
30-60 seconds then re-connect the AC power to the PC system, the power button will
be activated again and you can use the power button to turn on the system. Input
your personal password again in the BIOS setup program, and then you may use the
new password to power-on the PC system afterward.

Ultra 440BX ATX Mainboard INSTALLATION
2-3
¨PS/2™ MOUSE (LEFT OR RIGHT MOUSE BUTTON)
If you have a PS/2™ mouse connected to the system, you may change the setup in
the BIOS and use the mouse click to turn on the PC system power. Please refer to
section 4.9 for the BIOS setting
To use the mouse key to turn on the PC system power, the mouse click must be done
quickly and continually. Basically, 2-5 quick clicks on the mouse key ( left key or
right key ) will turn the power immediately.
In order to activate the mouse key feature, you will have to reboot the PC system
after the BIOS setting and wait until the POST (Power On Self Test) is completed.
Having finished the procedure, you may use the mouse key to power-on the PC
system afterward..
Note: 1. This feature is not available on the COM port mouse (serial mouse).
2. To use the PS/2 mouse power-on the PC system, JP1 must me "Enabled"
¨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 on the date and time which you selected in
the BIOS setup program.
Enable the “Resume by Alarm” selection in the BIOS setup utility, and then you will
see the input request for the date and time. (the “Resume by Alarm” is located in the
“POWER MANAGEMENT SETUP”, please refer to Section 4.7), When you have
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.
¨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 because this mainboard 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.

Ultra 440BX ATX Mainboard INSTALLATION
2-4
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 )on the mainboard. When the mainboard 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 “Power On by Ring / LAN” option (it is located in the “POWER
MANAGEMENT SETUP”, please refer to Section 4.7 for the settings).
Note: This function is not available when using the internal MODEM card.
¨WAKE ON LAN ( WOL )
There is a WOL connector CN16on 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 the 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” in the BIOS setup program.
Note: This function will be disabled if you turn off the power before the system can
verify the DMI pool data.
2.3 POWER OFF THE PC SYSTEM
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 ).

Ultra 440BX ATX Mainboard INSTALLATION
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 devices which you are going to install
in your PC system. To configure the mainboard is a simple task, only a few
jumpers, connectors, cables and sockets needs to be selected and configured.
(please refer to page 1-2 to see the mainboard layout)
3.1 INSTALLATION OF CPU
There are two CPU sockets on the mainboard designed for Pentium ™ II,
Pentium ™ IIIand Celeron™ processors. The CPU sockets on the mainboard are
the Slot 1 and Socket 370 as shown in the following picture:
BIOS
+
Socket 370 CPUSlot 1 CPU
Note: You can only one CPU on the mainboard.
When you have installed the processor onto the mainboard, it will detect the CPU
type and decide the CPU voltage automatically. So you don’t have to make any
jumper setting to select the CPU voltage. All you have to do is use the switch
setting to select the CPU clock ratio. (most of the Intel processorsneed not to
select the CPU clock ratio, because it is default selected by the CPU. Please refer
to Section 3.4 for the toggle switch setting.)
This mainboard comes with the universal purpose retention mechanism (some
people call it CPU Holder) for Slot 1 CPU. Before you can install the CPU onto
the mainboard, please install the CPU holder first so that your CPU can be hold
firmly on the mainboard.

Ultra 440BX ATX Mainboard INSTALLATION
3-2
3.2 INSTALLING THE DRAM MODULES
This mainboard has three DIMM sockets designed on the mainboard, all the
DIMM sockets on the mainboard support the single side and double side DIMM
modules, In order to have a better performance, only the Synchronous (SDRAM)
memory is recommended.(Both Symmetrical and Asymmetrical DRAM
addressing are supported.),.
When installing SDRAM modules, you don't have to start from DIMM1, you can
choose one of the DIMM socketsto install the DIMM module. However, install
the SDRAM module from DIMM 1 is still recommended.
DIMM3
BIOS
DIMM2
DIMM1
+
DIMM 1
DIMM 2
DIMM 3
In order to increase of the system performance and the reliability, please refer to the
following suggestions when you are installing the DIMM modules :
Installation of DIMM modules:
1.Outlook of DIMM modules:
(Single-Side DIMM Module)
(Double-Side DIMM Module )

Ultra 440BX ATX Mainboard INSTALLATION
3-3
2.Minimum one DIMM module must be installed on the mainboard.
3.You can use single side or double side DIMM module on this mainboard.
4.Always install DIMM module starting from DIMM 1 socket first, and then
DIMM 2 and DIMM 3.
5.Either PC-100 or PC-66 DIMM module can be used on this mainboard.
6.Maximum memory size: 384MB
If the CPU which you are installing onto the mainboard
will run at the 100MHz FSB clock speed, PC-100 DIMM
module is recommended. If you use the PC-66 DIMM
module with the 100MHz CPU, you may find that the PC
system become not stable.
The 440BX chipset supports the ECC feature and it can be used to check the
memory sub-system and make sure there is no error during memory read and
memory write. Before you can enable the ECC feature in the BIOS setup program,
please check the memory module and make sure there is the parity bit. ( you have to
check there is the parity bit on the DIMM module if you want to enable the ECC
feature in the BIOS).
3.3 CONNECTORS
The connectors on the mainboard are either the pin header type or D-type
connectors, they are used to connect the accessories or peripheral devices (such as
power, mouse, printer,...etc.). Followings are the connectors with its description
and the pin assignment which is designed on the mainboard.
(A) BAT1: Battery Socket (Use the 3 Volts Lithium battery : CR2032)
DIMM3
BIOS
DIMM2
DIMM1
+
BAT1: Battery Socket
Pin# Pin name Pin# Pin name
+Battery Positive - Ground

Ultra 440BX ATX Mainboard INSTALLATION
3-4
(B) CN1CN2: PS/2 Mouse and Keyboard Connector
DIMM3
BIOS
DIMM2
DIMM1
+
CN2 : PS/2 Mouse Connector
CN1 : PS/2 Keyboard Connector
(C) CN3 : Serial Port COM 1 Connector
(D) CN4: Serial Port COM 2 Connector
DIMM3
BIOS
DIMM2
DIMM1
+
COM 1 COM 2
CN4
CN3
( COM ports viewed from the real panel)
Ping assignment of serial port connector:
1 6 Pin # Signal name Pin # Signal name
? ? 1DCD (Data Carrier Detect) 6DSR (Data Set Ready)
? ? 2RD (Received Data) 7RTS (Request To Send)
? ? 3TD (Transmit Data) 8CTS (Clear To Send)
? ? 4DTR (Data Terminal Ready) 9RI (Ring Indicator)
?5Ground
5 9
I/O address 3F8H/2F8H/3E8H/2E8H, IRQ3/IRQ4, selected by CMOS setup.

Ultra 440BX ATX Mainboard INSTALLATION
3-5
(E) CN5:Parallel Port Connector
The parallel port on the mainboard supports SPP/EPP/ECP modes, IRQ7 or IRQ5
is selectable, ECP mode will use either DMA channel 3 or channel 1 which can be
selected by the CMOS setup program
DIMM3
BIOS
DIMM2
DIMM1
+
Parallel Port
CN5
Pin assignment of parallel port:
1 14 Pin # Signal name Pin # Signal name
? ? 1STROBE?14 AUTO FEED?
? ? 2Data Bit 0 15 ERROR?
? ? 3Data Bit 1 16 INIT?
? ? 4Data Bit 2 17 SLCT IN?
? ? 5Data Bit 3 18 Ground
? ? 6Data Bit 4 19 Ground
? ? 7Data Bit 5 20 Ground
? ? 8Data Bit 6 21 Ground
? ? 9Data Bit 7 22 Ground
? ? 10 ACK?23 Ground
? ? 11 BUSY 24 Ground
? ? 12 PE 25 Ground
?13 SLCT
13 25

Ultra 440BX ATX Mainboard INSTALLATION
3-6
(F) CN6:USB Port 1(Universal Serial Bus) Connector
(G) CN7:USB Port 2(Universal Serial Bus) Connector
CN6 USB 1
CN7 USB 2
DIMM3
BIOS
DIMM2
DIMM1
+
Pin assignment of USB connector:
1 2 3 4
5 6
1 2 3 4
5 6
USB 1 USB 2
(H) CN8: Floppy Disk Control Port Connector (Use IRQ6, DMA channel 2)
DIMM3
BIOS
DIMM2
DIMM1
+
CN8: FDC Connector
Pin1: +5VDC
Pin2: DATA-
Pin3: DATA+
Pin4: Ground
Pin5: Ground
Pin6: Ground

Ultra 440BX ATX Mainboard INSTALLATION
3-7
(I) CN9 :IDE 1 Connectors (Secondary ATA/33 IDE Port: 170H, IRQ 15)
(J) CN10: IDE 2Connectors (Primary ATA/33 IDE Port: 1F0H, IRQ 14)
There are two IDE cables come with the mainboard. Since IDE1 and IDE2
supports the ATA/33 mode. Please use the 40-conductor cable to connect the IDE
devices.
CN9: IDE 1
CN10: IDE 2
DIMM3
BIOS
DIMM2
DIMM1
+
(K)CN11:SB-LINK Connector
(For PCI bus sound cards. such as Creative™ Labs EMU8008 sound chip)
DIMM3
BIOS
DIMM2
DIMM1
+
CN 11
SB-LINK
2
4
6
1
3
5
Pin assignment of SB-LINK Connector:
1 2 Pin # Signal name Pin # Signal name
? ? 1GNT# 2Ground
?3Key 4 REQ#
? ? 5Ground 6SERIRQ
5 6

Ultra 440BX ATX Mainboard INSTALLATION
3-8
(L) CN12:IR / FIR (Infrared Rays) Connector
Consumer IR Connector ( Consumer IR connector is active only when
W83977CTF-AW I/O Chip is installed on position U9 )
DIMM3
BIOS
DIMM2
DIMM1
+
1A
2A
3A
4A
5A
1B
2B
3B
4B
( +5VDC )
( NO CONNECTION )
( IR RECEIVE )
( GROUND )
( IR TRANSMIT )
( +5VDC )
( IR TRANSMIT )
( CONSUMER IR RECEIVE )
( GROUND )
CONSUMER IR CONNECTORIR/FIR (INFRARED RAYS) CONNECTOR
CN 12IR CONNECTOR (Consumer IR is optional)
(M) CN13:CPU Cooling Fan Power Connector
DIMM3
BIOS
DIMM2
DIMM1
+
1
2
3CN13
GND
+12V
Fan Signal