This equipment has been tested and found to comply with the limits of a Class
B digital device, pursuant to Part 15 of the FCC Rules. These limits are designed
to provide reasonable protection against harmful interference in a residential
installation. This equipment generates, uses, and can radiate radio frequency
energy and, if not installed and used in accordance with t he instructions, may
cause harmful interference to radio communications. There is no guarantee
that interference will not occur in a particular installation.
The vendor makes no representations or warranties with respect to the
contents here and specially disclaims any implied warranties of merchantability
or fitness for any purpose. Further the vendor reserves the right to revise this
publication and to make changes to the contents here without obligation to
notify any party beforehand.
Duplication of this publication, in part or in whole, is not allowed without first
obtaining the vendor’s approval in writing.
The content of this user’s manual is subject to be changed without notice and
we will not be responsible for any mistakes found in this user’s manual. All the
brand and product names are trademarks of their respective companies.
Japanese ................................................................................................................ 54
CHAPTER 1: INTRODUCTION
T41-A7
1.1 B
EFORE YOU START
Thank you for choosing our product. Before you start installing the
motherboard, please make sure you follow the instructions below:
Prepare a dry and stable working environment with
sufficient lighting.
Always disconnect the computer from power outlet
before operation.
Before you take the motherboard out from anti-static
bag, ground yourself properly by touching any safely
grounded appliance, or use grounded wrist strap to
remove the static charge.
Avoid touching the components on motherboard or the
rear side of the board unless necessary. Hold the board
on the edge, do not try to bend or flex the board.
Do not leave any unfastened small parts inside the
case after installation.
Loose parts will cause short circuits which may
damage the equipment.
Keep the computer from dangerous area, such as heat
source, humid air and water.
1.2PACKAGE CHECKLIST
HDD Cable X 1 Serial ATA Cable X 2 Rear I/O Panel for ATX Case X 1 User’s Manual X 1 Fully Setup Driver CD X 1 FDD Cable X 1 (optional) USB 2.0 Cable X1 (optional) S/PDIF Cable X 1 (optional) Serial ATA Power Cable X 1 (optional)
Note: The package contents may be different due to area or your motherboard version.
1
Motherboard Manual
1.3 MOTHERBOARD FEATURES
SPEC
LGA 775
CPU
FSB 800 / 1066 / 1333 MHz
Chipset
Super I/O
Main
Memory
Graphics GMA 4500 Max Shared Video Memory is 256MB
Floppy connector x1 Each connector supports 2 Floppy drives
IDE Conn ector x1 Each connecto r supports 2 IDE device
SATA Connector x4 Each connector supports 1 SATA devices
Front Panel Connector x1 Supports front panel facilit ies
Front Audio Connector x1 Supports front panel audio function
Supports Hyper-Threading / Execute Disable Bit /
Enhanced Inte l SpeedStep® / Intel Arch it ecture- 64 /
Extended Memory 64 Technology / Virtualization
Technology
En v iron ment Co n tro l in it iat ives ,
Hardware Monitor Controller
Fan Sp eed Contro ller
ITE's "S mart Guard ian" funct ion
Dual Channel Mode DDR2 memory modu le
Supports DDR2 800/667
Register ed DIMM and ECC D IMM is not supported
Ultra DMA 33 / 66 / 100 Bus Master Mode
supports PIO Mode 0~4
Data transfer rates up to 3.0 Gb/s.
SATA Version 2.0 s pecif ic at ion co mpliant
10 / 100 Mb/s / 1Gb/s auto negot iation
Half / Full duplex capability
5.1 channels audio out
High Definition Audio
2
SPEC
CD-in Connector x1 Supports CD audio-in function
S/PDIF out connector x1 Supports digital audio out function
CPU Fan header x1 CPU Fan power supply (with Smart Fan function)
System Fan header x2 System Fan Po wer supply
Clear CMOS header x1 Restore CMOS dat a to facto ry default
USB connector x2 Each connector supports 2 front panel USB po rts
Power Connector (24pin) x1 Connects to Power supply
Power Connector (4pin) x2 Connects to Power supply
PS/2 Keybo ard x1
PS/2 Mous e x1
Back Panel
I/O
Board Size 210 (W) x 305 (L) mm ATX
OS Support Windows 2000 / XP / Vista 32 / Vista 64
VGA port x1
DVI-D Port x1
LAN port x1
USB Port x4
Audio Jack x3
Connects to PS/2 Keyboard
Connects to PS/2 Mouse
Connect to D-SUB monitor
Connect to DVI monitor
Connect to RJ-45 et hernet cable
Connect to USB devices
Provide Audio-In/Out and microphone connection
Biostar reserves the right to add or remove support for
any OS with or without notice
T41-A7
1.4REAR PANEL CONNECTORS
PS/2
Mouse
PS/ 2
VGA
DVI-D
Keyboard
Since the audio chip supports High Definition Audio Specification, the function of each audio
jack can be defined by software. The input / output function of each audio jack listed above
represents the default setting. However, when connecting external microphone to the audio
port, please use the Line In (blue) and Mic In (Pink) audio jack.
LAN
Line I n/
Surround
Line Out
Mic In 1/
Bass/ Center
USBX2USBX2
3
Motherboard Manual
1.5MOTHERBOARD LAYOUT
PH1
PH3
JKBMS1
JVGA1
JDVI1
JUSB1
JRJ45USB1
JAUDIO1
JSPDIF_OUT1
LAN
JATXPWR2
JUSBV1
JCDI N1
PH2
PH4
LGA775
CPU1
JCFAN 1
JNFAN1
J1
PEX16_1
Intel
G41
DDR2_A1
DDR2_B1
JAT XPWR 1
4
CODEC
Super
I/O
JAUDIOF1
Note: represents the 1■
PEX1_1
PEX1_2
FDD1
PCI1
PCI2
PCI3
st
pin.
JSFAN1
JUSBV2
Intel
ICH7
SATA1SATA3
SATA2SATA4
IDE1
LED2
LED1
JUSB3JUSB4JPANEL1
BAT1
JCMOS1
BIOS
RSTSW1
PWRSW1
CHAPTER 2: HARDWARE INSTALLATION
T41-A7
2.1 I
NSTALLING CENTRAL PROCESSING UNIT (CPU)
Special Notice:
Remove Pin Cap before installation, and make good preservation
for future use. When the CPU is removed, cover the Pin Cap on the
empty socket to ensure pin legs won’t be damaged.
Pin Cap
Step 1: Pull the socket locking lever out from the socket and then raise
the lever up to a 90-degree angle.
5
Motherboard Manual
Step 2: Look for the triangular cut edge on socket, and the golden dot on
CPU should point forwards this triangular cut edge. The CPU will
fit only in the correct orientation.
Step 2-1:
Step 2-2:
Step 3: Hold the CPU down firmly, and then lower the lever to locked
position to complete the installation.
Step 4: Put the CPU Fan and heatsink assembly on the CPU and buckle it
on the retention frame. Connect the CPU FAN power cable into
the JCFAN1. This completes the installation.
6
2.2 FANHEADERS
These fan headers support cooling-fans built in the computer. The fan
cable and connector may be different according to the fan manufacturer.
Connect the fan cable to the connector while matching the black wire to
pin#1.
JCFAN1: CPU Fan Header
Pin
Assignment
4
1
JNFAN1: NorthBridge Fan Header
JSFAN1: System Fan Header
JNFAN1
13
1 Ground
2 +12V
3
FAN RPM r ate
sense
4 Smart Fan
Control
Pin
Assignment
1 Ground
2 +12V
3 FAN RPM rate
sense
T41-A7
JSFAN1
Note:
The JNFAN1/JSFAN1 supports 3-pin head connectors; the JCFAN1 supports 4-pin head
connector. When connecting with wires onto connectors, please note that the red wire is
the positive and should be connected to pi n#2, and the black wire is Ground and should
be connected to GND.
7
Motherboard Manual
2.3 INSTALLING SYSTEM MEMORY
A. Memory Modules
DDR2 _A1
DDR2 _B1
1. Unlock a DIMM slot by pressing the retaining clips outward. Align a
DIMM on the slot such that the notch on the DIMM matches the
break on the Slot.
2. Insert the DIMM vertically and firmly into the slot until the retaining
chip snap back in place and the DIMM is properly seated.
8
B. Memory Capacity
T41-A7
DIMM Socket
Location
DDR2_A1 256MB/512MB/1GB/2GB
DDR2_B1 256MB/512MB/1GB/2GB
DDR Module
Total Mem ory
Size
Max is 4GB.
C. Dual Channel Memory installation
Dual Channel function will be activated unless the memory module must meet
the following requirements:
Install memory module of the same density in pairs, shown in the following
table.
Dual Channel Status
Disabled O X
Disabled X O
Enabled O O
(O means memory installed, X means memory not installed.)
The DRAM bus width of the memory module must be the same (x8 or
x16)
DDR2_A1
DDR2_B1
9
Motherboard Manual
CONNECTORS AND SLOTS
FDD1: Floppy Disk Connector
The motherboard provides a standard floppy disk connector that supports 360K,
720K, 1.2M, 1.44M and 2.88M floppy disk types. This connector supports the
provided floppy drive ribbon cables.
IDE1: Hard Disk Connector
The motherboard has a 32-bit Enhanced PCI IDE Controller that provides PIO
Mode 0~4, Bus Master, and Ultra DMA 33/66/100 functionality.
An IDE connector can connect a master and a slave drive, so you can connect
up to two hard disk drives.
2
34
331
240
10
1
39
PEX16_1: PCI-Express x16 Slot
- PCI-Express 1.0a compliant.
- Maximum theoretical realized bandwidth of 4GB/s simultaneously per
direction, for an aggregate of 8GB/s totally.
PEX1_1/PEX1_2: PCI-Express x1 Slots
- PCI-Express 1.0a compliant.
- Maximum theoretical realized bandwidth of 250MB/s simultaneously per
direction, for an aggregate of 500MB/s totally.
- PCI-Express supports a raw bit-rate of 2.5GB/s on the data pins.
- 2X bandwidth over the traditional PCI architecture.
This motherboard is equipped with 3 standard PCI slots. PCI stands for
Peripheral Component Interconnect, and it is a bus standard for expansion
cards. This PCI slot is designated as 32 bits.
PCI1
PCI2
PCI3
11
Motherboard Manual
CHAPTER 3: HEADERS & JUMPERS SETUP
3.1 H
OW TO SETUP JUMPERS
The illustration shows how to set up jumpers. When the jumper cap is
placed on pins, the jumper is “close;” if not, that means the jumper is
“open”.
Pin opened Pin closed Pin1-2 closed
3.2 D
JPANEL1: Front Panel Header
ETAIL SETTINGS
This 16-pin connector includes Power-on, Reset, HDD LED, Power LED, and
speaker connection. It allows user to connect the PC case’s front panel switch
functions.
POW_LED
On/Off
-
SPK
++
+
HLED
-
16
8
RST
9
1
12
Pin Assignment Function Pin Assignment Function
1 +5V 9 N/A
2 N/A 10 N/A
3 N/ A 11 N/ A N/A
4 Speaker
5 HDD LED (+) 13 Power LED (+)
6 HDD LED (-)
7 Ground 15 Power button
8 Reset control
Speaker
Connector
Hard drive
LED
Reset button
12 Power LED (+)
14 Power LED (-)
16 Ground
N/A
Power LED
Power-on button
JATXPWR1: AT X Power Source Connector
This connector allows user to connect 24-pin power connector on the ATX
power supply.
T41-A7
12
1
Pin Assignment Pin Assignment
24
13
13 +3.3V 1 +3.3V
14 -12V 2 +3.3V
15 Gro und 3 Gro und
16 PS_ON 4 +5V
17 Gro und 5 Gro und
18 Ground 6 +5V
19 Gro und 7 Gro und
20 NC 8 PW_OK
21 +5V 9 Standby Voltage+5V
22 +5V 10 +12V
23 +5V 11 +12V
24 Ground 12 +3.3V
JATXPWR2: AT X Power Source Connector
This connector provides +12V to CPU power circuit.
34
12
Pin
Assignment
1 +12V
2 +12V
3 Ground
4 Ground
Note:
Before power on the system, please make sure that both JATXPWR1 and JATXPWR2
connectors have been plugged-in.
13
Motherboard Manual
J1: Auxiliary Power for Graphics
This connector is an auxiliary power connection for graphics cards. Exclusive
power for the graphics card provides better graphics performance.
14
JUSB3/JUSB4: Headers for USB 2.0 Ports at Front Panel
These headers allow user to connect additional USB cable on the PC front panel.
They also can be connected with internal USB devices, like USB card reader.
This header allows user to connect the front audio output cable with the PC front
panel. This header allows only HD audio front panel connector; AC’97 connector
is not acceptable.
Pin Assignment
1 Mic Left in
2 Ground
3 Mic Right in
4 GPIO
5 Right line in
6 Jack Sense
7 Front Sense
8 Key
2
10
9 Left line in
10 Jack Sense
JCDIN1: CD-ROM Audio-in Connector
This connector allows user to connect the audio source from the variaty devices,
like CD-ROM, DVD-ROM, PCI sound card, PCI TV turner card etc..
1
9
Assignment
Pin
4
1
1 Left Channel Input
2 Ground
3 Ground
4 Right Channel Input
15
Motherboard Manual
S
ATA
JCMOS1: Clear CMOS Header
Placing the jumper on pin2-3 allows user to restore the BIOS safe setting and
the CMOS data. Please carefully follow the procedures to avoid damaging the
motherboard.
※ Clear CMOS Procedures:
1. Remove AC power line.
2. Set the jumper to “Pin 2-3 close”.
3. Wait for five seconds.
4. Set the jumper to “Pin 1-2 close”.
5. Power on the AC.
6. Reset your desired password or clear the CMOS data.
3
1
Pin 1-2 Close:
Normal Operation (default).
3
1
3
1
Pin 2-3 Close:
Clear CMOS data.
SATA1~SATA4: Serial ATA Connectors
The motherboard has a PCI to SATA Controller with 4 channels SATA interface.
It satisfies the SATA 2.0 spec and with transfer rate of 3.0Gb/s.
16
4
SATA1
SATA2
SATA3
1
4
7
Pin
Assignment
1 Ground
2 TX+
3 TX4 Ground
5 RX6 RX+
7 Ground
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