This publication, including all photographs, illustrations and software, is protected
under international copyright laws, with all rights reserved. Neither this manual, nor
any of the material contained herein, may be reproduced without written consent of
the author.
Version 1.0A
Disclaimer
The information in this document is subject to change without notice. The manufacturer makes no representations or warranties with respect to the contents hereof and
specifically disclaims any implied warranties of merchantability or fitness for any
particular purpose. The manufacturer reserves the right to revise this publication and
to make changes from time to time in the content hereof without obligation of the
manufacturer to notify any person of such revision or changes.
Trademark Recognition
Microsoft, MS-DOS and Windows are registered trademarks of Microsoft Corp.
MMX, Pentium, Pentium-II, Pentium-III, Celeron are registered trademarks of Intel
Corporation.
Other product names used in this manual are the properties of their respective
owners and are acknowledged.
Federal Communications Commission (FCC)
This equipment has been tested and found to comply with the limits for 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 the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference
will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the
equipment off and on, the user is encouraged to try to correct the interference by one
or more of the following measures:
•Reorient or relocate the receiving antenna
•Increase the separation between the equipment and the receiver
•Connect the equipment onto an outlet on a circuit different from that to
which the receiver is connected
•Consult the dealer or an experienced radio/TV technician for help
Shielded interconnect cables and a shielded AC power cable must be employed with
this equipment to ensure compliance with the pertinent RF emission limits governing this device. Changes or modifications not expressly approved by the system’s
manufacturer could void the user’s authority to operate the equipment.
Preface
ii
Declaration of Conformity
This device complies with part 15 of the FCC rules. Operation is subject to the
following conditions:
•This device may not cause harmful interference, and
•This device must accept any interference received, including interference that may cause undesired operation
Canadian Department of Communications
This class B digital apparatus meets all requirements of the Canadian Interferencecausing Equipment Regulations.
Cet appareil numérique de la classe B respecte toutes les exigences du Réglement sur
le matériel brouilieur du Canada.
Thank you for choosing the P41T-A motherboard. This motherboard is a high
performance, enhanced function motherboard designed to support the LGA775 socket
Celeron® 400 series processors for high-end business or personal desktop markets.
®
The motherboard incorporates the Intel
Southbridge (SB) chipsets.The Northbridge supports a Front Side Bus (FSB) frequency of 1333/1066 MHz using a scalable FSB Vcc_CPU. The memory controller
supports DDR2 memory DIMM frequencies of 800/667. It supports two DDR2
sockets with up to maximum memory of 8 GB. DDR2 Maximum memory bandwidth
of 12.8 GB/s in dual-channel symmetric mode assuming DDR2 800 MHz. High
resolution graphics via one PCI Express slot, intended for Graphics Interface, is fully
compliant to the PCI Express Gen 1.
The ICH7 Southbridge supports three PCI slots which are PCI v2.3 compliant. In
addition, three PCI Express x1 slots are supported, fully compliant to the PCI
Express Base Specification revision 1.0a. It implements an EHCI compliant interface that provides 480 Mb/s bandwidth for eight USB 2.0 ports (four USB ports and
two USB 2.0 headers support additional four USB ports). One onboard IDE connector supports two IDE devices in Ultra ATA100/66/33 mode. The Southbridge integrates a Serial ATA host controller, supporting four SATA ports with maximum
transfer rate up to 3.0 Gb/s each.
G41 Northbridge (NB) and Intel® ICH7
1
The motherboard is equipped with advanced full set of I/O ports in the rear panel,
including PS/2 mouse and keyboard connectors, one LPT port, one COM port, four
USB ports, one LAN port, and audio jacks for microphone, line-in and line-out.
Introducing the Motherboard
2
Feature
Processor
The motherboard uses an LGA775 type of Intel® CoreTM 2 Quad/CoreTM 2 Duo/
®
Pentium
carry the following features:
“Hyper-Threading” technology enables the operating system into thinking it’s
hooked up to two processors, allowing two threads to be run in parallel, both on
separate “logical” processors within the same physical processor.
Dual-Core/Celeron® Dual Core/ Celeron® 400 series processors that
The Intel
based on an innovative and scalable architecture with proven reliability and
performance.
G41 Northbridge (NB) and Intel® ICH7 Southbridge (SB) chipsets are
G41 (NB)
ICH7 (SB)
•Supports 36-bit host bus addressing, allowing the CPU
to access the entire 64 GB of the memory address
space
•2 GB/s point-to-point Direct Media Interface (DMI) to
ICH7 (1 GB/s each direction)
•Supports 2-GB, 1-Gb, 512 Mb DDR2 DRAM technologies for x8 and x16 devices
•One, 16-lane (x16) PCI Express port intended for external device attach, fully compatible to the PCI Express Gen 1
•An integrated graphics device (IGD) delivering cost
competitive 3D, 2D and video capabilities
•Microsoft DX10 and 128MB share memory are supported
•Enhanced DMA Controller , interrupt controller, and timer
functions
•Compliant with PCI Express Base Specification, Revision 1.0a
•Compliant with PCI v2.3 specification
•Integrated SATA 3.0 Gb/s Host Controller
•Integrated USB 2.0 Host Controller supporting up to
eight USB 2.0 ports
•Integrated IDE controller supports Ultra ATA 100/66/33
Memory
•Supports DDR2 800/667 DDR2 SDRAM with dual-channel architecturem
•Accommodates two unbuffered DIMMs
•2 x 240-pin DDR2 DIMM sockets support up to 8 GB
Introducing the Motherboard
Onboard LAN
•Supports PCI Express™ 1.1
•Integrated 10/100/1000 transceiver
•Wake-On-LAN (WOL) and remote wake-up support
Audio
This motherboard may support either of the following Audio chipsets:
•5.1 Channel High Definition Audio Codec
•ADCs support 44.1K/48K/96K/192KHz sample rate
•Power support: Digital: 3.3 V; Analog: 5.0 V
Expansion Options
The motherboard comes with the following expansion options:
•One PCI Express slot for Graphic Interface
•Three PCI Express x1 slots
•Three 32-bit PCI v2.3 compliant slot
•One IDE connector that supports two IDE devices
•Four 7-pin SATA connectors
Integrated I/O
The motherboard has a full set of I/O ports and connectors:
•Two PS/2 ports for mouse and keyboard
•One parallel port
•One serial port
•Four USB ports
•One LAN port
•Audio jacks for microphone, line-in and line-out
3
BIOS Firmware
This motherboard uses AMI BIOS that enables users to configure many system
features including the following:
Power management
•
•Wake-up alarms
•CPU parameters
•CPU and memory timing
The firmware can also be used to set parameters for different processor clock
speeds.
1.Some hardware specifications and software items are subject to change
without prior notice.
2.Due to chipset limitation, we recommend that motherboard be operated in the ambiance between 0 and 50°C.
Introducing the Motherboard
4
Motherboard Components
Introducing the Motherboard
Table of Motherboard Components
5
LABELCOMPONENTS
®
1. CPU Socket
Core
TM
2 Quad/Core
Intel
Dual-Core/Celeron® Dual Core/Celeron
TM
2 Duo/Pentium
400 series processors
2. CPU_FAN CPU cooling fan connector
3. DDR2_1~2 240-pin DDR2 SDRAM slots
4. ATX_POWER Standard 24-pin ATX power connector
5. IDE Primary IDE channel
6. SATA1~4 Serial ATA connectors
7. CLR_CMOS Clear CMOS jumper
8. SYS_FAN System cooling fan connector
9. F_PANEL Front panel switch/LED header
10. SPK Speaker header
11. USBPWR_F Front panel USB power select jumper
12. F_USB1~2 Front panel USB headers
13. PWR_FAN Power cooling fan connector
14. COM Onboard serial port header
15. SPDIFO SPDIF out header
16. CD_IN Analog audio input header
17. F_AUDIO Front panel audio header
18. PCI1~3 32-bit add-on card slots
19. PCIE1~3 PCI Express x1 slots
20. PCIEX16 PCI Express x16 graphics card slot
21. USBPWR_R Rear panel USB PS/2 power select jumper
22. ATX12V 4-pin +12V power connector
®
®
This concludes Chapter 1. The next chapter explains how to install the motherboard.
Introducing the Motherboard
6
Memo
Introducing the Motherboard
Chapter 2
Installing the Motherboard
Safety Precautions
•Follow these safety precautions when installing the motherboard
•Wear a grounding strap attached to a grounded device to avoid damage from static electricity
•Discharge static electricity by touching the metal case of a safely
grounded object before working on the motherboard
•Leave components in the static-proof bags they came in
•Hold all circuit boards by the edges. Do not bend circuit boards
Choosing a Computer Case
There are many types of computer cases on the market. The motherboard complies
with the specifications for the ATX system case. First, some features on the
motherboard are implemented by cabling connectors on the motherboard to indicators and switches on the system case. Make sure that your case supports all the
features required. Secondly, this motherboard supports two enhanced IDE drives.
Make sure that your case has sufficient power and space for all drives that you intend
to install.
Most cases have a choice of I/O templates in the rear panel. Make sure that the I/O
template in the case matches the I/O ports installed on the rear edge of the
motherboard.
This motherboard carries an ATX form factor of 305 x 204 mm. Choose a case that
accommodates this form factor.
7
Installing the Motherboard in a Case
Refer to the following illustration and instructions for installing the motherboard in
a case.
Most system cases have mounting brackets installed in the case, which correspond
the holes in the motherboard. Place the motherboard over the mounting brackets
and secure the motherboard onto the mounting brackets with screws.
Ensure that your case has an I/O template that supports the I/O ports and expansion
slots on your motherboard.
Installing the Motherboard
8
Do not over-tighten the screws as this can stress the motherboard.
Checking Jumper Settings
This section explains how to set jumpers for correct configuration of the motherboard.
Setting Jumpers
Use the motherboard jumpers to set system configuration options. Jumpers with
more than one pin are numbered. When setting the jumpers, ensure that the jumper
caps are placed on the correct pins.
The illustrations show a 2-pin jumper.
When the jumper cap is placed on both
pins, the jumper is SHORT. If you remove the jumper cap, or place the jumper
cap on just one pin, the jumper is OPEN.
This illustration shows a 3-pin jumper.
Pins 1 and 2 are SHORT.
SHORT OPEN
Installing the Motherboard
Checking Jumper Settings
The following illustration shows the location of the motherboard jumpers. Pin 1 is
labeled.
Jumper Settings
9
Jumper
CLR_CMOS
USBPWR_F
USBPWR_R 3-pin
Type
3-pin
3-pin
1. To avoid the system instability after clearing CMOS, we recommend
users to enter the main BIOS setting page to “Load Default Settings”
and then “Save and Exit Setup”.
2. Make sure the power supply provides enough 5VSB voltage before
selecting the 5VSB function.
3. It is required that users place the USBPWR_F & USBPWR_R cap onto
2-3 pin rather than 1-2 pin as default if you want to wake up the computer by USB/PS2 KB/Mouse.
DescriptionSetting (default)
1-2: NORMAL
Clear CMOS
Front Panel
USB Power
Select Jumper
Rear USB PS/2
Power Select
Jumper
2-3: CLEAR
Before clearing the
CMOS, make sure to
turn off the system.
1-2: VCC
2-3: 5VSB
1-2: VCC
2-3: 5VSB
Installing the Motherboard
1
CLR_CMOS
1
USBPWR_F
1
USBPWR_R
10
Installing Hardware
Installing the Processor
Caution: When installing a CPU heatsink and cooling fan make sure
that you DO NOT scratch the motherboard or any of the surfacemount resistors with the clip of the cooling fan. If the clip of the cooling
fan scrapes across the motherboard, you may cause serious damage
to the motherboard or its components.
On most motherboards, there are small surface-mount resistors near
the processor socket, which may be damaged if the cooling fan is
carelessly installed.
Avoid using cooling fans with sharp edges on the fan casing and the
clips. Also, install the cooling fan in a well-lit work area so that you
can clearly see the motherboard and processor socket.
Before installing the Processor
This motherboard automatically determines the CPU clock frequency and system bus
frequency for the processor. You may be able to change the settings in the system
Setup Utility. We strongly recommend that you do not over-clock processors or
other components to run faster than their rated speed.
Warning:
1. Over-clocking components can adversely affect the reliability of the
system and introduce errors into your system. Over-clocking can permanently damage the motherboard by generating excess heat in components that are run beyond the rated limits.
2. Always remove the AC power by unplugging the power cord from
the power outlet before installing or removing the motherboard or
other hardware components.
This motherboard has an LGA775 socket. When choosing a processor, consider the
performance requirements of the system. Performance is based on the processor
design, the clock speed and system bus frequency of the processor, and the quantity
of internal cache memory and external cache memory.
Installing the Motherboard
CPU Installation Procedure
The following illustration shows CPU installation components.
A. Read and follow the instructions shown
on the sticker on the CPU cap.
B. Unload the cap
· Use thumb & forefinger to hold the
lifting tab of the cap.
· Lift the cap up and remove the cap
completely from the socket.
C. Open the load plate
· Use thumb & forefinger to hold the
hook of the lever, pushing down and
pulling aside unlock it.
· Lift up the lever.
· Use thumb to open the load plate. Be
careful not to touch the contacts.
D. Install the CPU on the socket
· Orientate CPU package to the socket.
Make sure you match triangle marker
to pin 1 location.
E. Close the load plate
· Slightly push down the load plate onto
the tongue side, and hook the lever.
· CPU is locked completely.
11
F. Apply thermal grease on top of the CPU.
G. Fasten the cooling fan supporting base
onto the CPU socket on the motherboard.
H. Make sure the CPU fan is plugged to the
CPU fan connector. Please refer to the
CPU cooling fan user’s manual for more
detail installation procedure.
1. To achieve better airflow rates and heat dissipation, we suggest
that you use a high quality fan with 3800 rpm at least. CPU fan and
heatsink installation procedures may vary with the type of CPU fan/
heatsink supplied. The form and size of fan/heatsink may also vary.
2. DO NOT remove the CPU cap from the socket before installing a
CPU.
3. Return Material Authorization (RMA) requests will be accepted
only if the motherboard comes with the cap on the LGA775 socket.
Installing the Motherboard
12
Installing Memory Modules
This motherboard accommodates two memory modules. It can support two 240-pin
DDR2 800/667. The total memory capacity is 8 GB.
DDR2 SDRAM memory module table
Memory moduleMemory Bus
DDR2 667 333 MHz
DDR2 800 400 MHz
You must install at least one module in any of the two slots. The total memory
capacity is up to 8 GB.
Do not remove any memory module from its antistatic packaging
until you are ready to install it on the motherboard. Handle the
modules only by their edges. Do not touch the components or metal
parts. Always wear a grounding strap when you handle the modules.
Installation Procedure
Refer to the following to install the memory modules.
1This motherboard supports unbuffered DDR2 SDRAM .
2Push the latches on each side of the DIMM slot down.
3Align the memory module with the slot. The DIMM slots are keyed with
notches and the DIMMs are keyed with cutouts so that they can only be
installed correctly.
4Check that the cutouts on the DIMM module edge connector match the
notches in the DIMM slot.
5Install the DIMM module into the slot and press it firmly down until it
seats correctly. The slot latches are levered upwards and latch on to
the edges of the DIMM.
6Install any remaining DIMM modules.
Installing the Motherboard
Table A: DDR2 (memory module) QVL (Qualified V endor List)
The following DDR2 1066/800/667 memory modules have been tested and qualified
for use with this motherboard.
The slots on this motherboard are designed to hold expansion cards and connect
them to the system bus. Expansion slots are a means of adding or enhancing the
motherboard’s features and capabilities. With these efficient facilities, you can increase the motherboard’s capabilities by adding hardware that performs tasks that are
not part of the basic system.
PCIEX16 Slot
PCIE1~3 Slots
PCI1~3 Slots
The PCI Express slot is used to install an external PCI Express
graphics card that is fully compliant to the PCI Express Gen 1.
The PCI Express x1 slots are fully compliant to the PCI Express
Base Specification revision 1.0a.
This motherboard are equipped with three standard PCI slots. PCI
stands for Peripheral Component Interconnect and is a bus standard
for expansion cards, which for the most part, is a supplement of the
older ISA bus standard. The PCI slots on this board are PCI v2.3
compliant.
Before installing an add-on card, check the documentation for the
card carefully. If the card is not Plug and Play, you may have to
manually configure the card before installation.
Installing the Motherboard
Follow these instructions to install an add-on card:
1Remove a blanking plate from the system case corresponding to the
slot you are going to use.
2Install the edge connector of the add-on card into the expansion slot.
Ensure that the edge connector is correctly seated in the slot.
3Secure the metal bracket of the card to the system case with a screw.
1. For some add-on cards, for example graphics adapters and network
adapters, you have to install drivers and software before you can begin using
the add-on card.
2. The onboard PCI interface does not support 64-bit SCSI cards.
17
Installing the Motherboard
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