Gigabyte GA-EP43T-UD3L User manual

GA-EP43T-UD3L
LGA775 socket motherboard for Intel®Core™ processor family/
Intel®Pentium®processor family/Intel®Celeron®processor family
User's Manual
Rev. 1101
12ME-43TUD3L-1101R

Motherboard
GA-EP43T-UD3L
Apr. 30, 2009
Apr. 30, 2009
Motherboard
GA-EP43T-UD3L

Copyright
©2009 GIGA-BYTE TECHNOLOGY CO., LTD. All rights reserved.
The trademarks mentioned in this manual are legally registered to their respective owners.
Disclaimer
Information in this manual is protected by copyright laws and is the property of GIGABYTE.
Changes to the specications and features in this manual may be made by GIGABYTE with-
out prior notice. No part of this manual may be reproduced, copied, translated, transmitted, or
published in any form or by any means without GIGABYTE's prior written permission.
Documentation Classications
In order to assist in the use of this product, GIGABYTE provides the following types of documentations:
For quick set-up of the product, read the Quick Installation Guide included with the product.
For detailed product information, carefully read the User's Manual.
For instructions on how to use GIGABYTE's unique features, read or download the information
on/from the Support&Downloads\Motherboard\Technology Guide page on our website.
For product-related information, check on our website at:
http://www.gigabyte.com.tw
Identifying Your Motherboard Revision
The revision number on your motherboard looks like this: "REV: X.X." For example, "REV: 1.0"
means the revision of the motherboard is 1.0. Check your motherboard revision before updating
motherboard BIOS, drivers, or when looking for technical information.
Example:

- 4 -
Table of Contents
Box Contents...................................................................................................................6
Optional Items .................................................................................................................6
GA-EP43T-UD3L Motherboard Layout............................................................................7
Block Diagram .................................................................................................................8
Chapter 1 Hardware Installation .....................................................................................9
1-1 Installation Precautions.................................................................................... 9
1-2 Product Specications.................................................................................... 10
1-3 Installing the CPU and CPU Cooler ............................................................... 13
1-3-1 Installing the CPU...................................................................................................13
1-3-2 Installing the CPU Cooler .......................................................................................15
1-4 Installing the Memory..................................................................................... 16
1-4-1 Dual Channel Memory Conguration .....................................................................16
1-4-2 Installing a Memory ...............................................................................................17
1-5 Installing an Expansion Card ......................................................................... 18
1-6 Back Panel Connectors.................................................................................. 19
1-7 Internal Connectors........................................................................................ 21
Chapter 2 BIOS Setup ..................................................................................................33
2-1 Startup Screen ............................................................................................... 34
2-2 The Main Menu .............................................................................................. 35
2-3 MB Intelligent Tweaker(M.I.T.)........................................................................ 37
2-4 Standard CMOS Features.............................................................................. 45
2-5 Advanced BIOS Features .............................................................................. 47
2-6 Integrated Peripherals.................................................................................... 50
2-7 Power Management Setup............................................................................. 53
2-8 PnP/PCI Congurations ................................................................................. 55
2-9 PC Health Status............................................................................................ 56
2-10 Load Fail-Safe Defaults.................................................................................. 58
2-11 Load Optimized Defaults................................................................................ 58
2-12 Set Supervisor/User Password ...................................................................... 59
2-13 Save & Exit Setup .......................................................................................... 60
2-14 Exit Without Saving........................................................................................ 60

- 5 -
Chapter 3 Drivers Installation........................................................................................61
3-1 Installing Chipset Drivers ............................................................................... 61
3-2 Application Software ...................................................................................... 62
3-3 Technical Manuals.......................................................................................... 62
3-4 Contact........................................................................................................... 63
3-5 System ........................................................................................................... 63
3-6 Download Center ........................................................................................... 64
Chapter 4 Unique Features...........................................................................................65
4-1 Xpress Recovery2.......................................................................................... 65
4-2 BIOS Update Utilities ..................................................................................... 68
4-2-1 Updating the BIOS with the Q-Flash Utility.............................................................68
4-2-2 Updating the BIOS with the @BIOS Utility .............................................................71
4-3 EasyTune 6 .................................................................................................... 72
4-4 Dynamic Energy Saver Advanced.................................................................. 73
4-5 Q-Share.......................................................................................................... 75
4-6 Time Repair.................................................................................................... 76
Chapter 5 Appendix ......................................................................................................77
5-1 Conguring Audio Input and Output............................................................... 77
5-1-1 Conguring 2/4/5.1/7.1-Channel Audio...................................................................77
5-1-2 Conguring S/PDIF In/Out......................................................................................79
5-1-3 Conguring Microphone Recording........................................................................81
5-1-4 Using the Sound Recorder .....................................................................................83
5-2 Troubleshooting.............................................................................................. 84
5-2-1 Frequently Asked Questions ..................................................................................84
5-2-2 Troubleshooting Procedure ....................................................................................85
5-3 Regulatory Statements................................................................................... 87

- 6 -
Box Contents
GA-EP43T-UD3L motherboard
Motherboard driver disk
User's Manual
Quick Installation Guide
One IDE cable
Two SATA 3Gb/s cables
I/O Shield
Optional Items
Floppy disk drive cable (Part No. 12CF1-1FD001-7*R)
2-port USB 2.0 bracket (Part No. 12CR1-1UB030-5*R)
2-port SATA power cable (Part No. 12CF1-2SERPW-0*R)
S/PDIF In cable (Part No. 12CR1-1SPDIN-0*R)
COM port cable (Part No. 12CF1-1CM001-3*R)
LPT port cable (Part No. 12CF1-1LP001-0*R)
•The box contents above are for reference only and the actual items shall depend on the product package you obtain.
The box contents are subject to change without notice.
•The motherboard image is for reference only.

- 7 -
GA-EP43T-UD3L Motherboard Layout
KB_MS
R_SPDIF
CPU_FAN PWR_FAN
PHASE_LED
LGA775 ATX
GA-EP43T-UD3L
CD_IN
F_AUDIO
AUDIO
B_BIOSM_BIOS
PCIEX16
PCIEX1_1
IDE
SPDIF_O
SPDIF_I
CI
DDR3_1
DDR3_3 DDR3_2 DDR3_4
BATTERY
JMicron 368
F_PANEL
IT8718
SATA2_3
SATA2_4
SATA2_5
ATX_12V
Intel®P43
Intel®ICH10
PWR_LED
FDD
PCI1
R_USB_1
R_USB_2
R_USB_3
USB_LAN
CLR_CMOS
CODEC
SYS_FAN1
F_USB2LPTCOMA F_USB1
SYS_FAN2
SATA2_0
SATA2_1
SATA2_2
PCIEX1_2
PCIEX1_3
PCIEX1_4
PCI2
RTL8111C

- 8 -
Block Diagram
PS/2 KB/Mouse
12 USB Ports
LGA775
CPU
Host
Interface
Intel®P43
MCH CLK
(400(O.C.)/333/266/200 MHz)
DDR3 1600/1333/
1066/800 MHz
Intel®ICH10
2 PCI
PCI Bus
Dual Channel Memory
PCI CLK
(33 MHz)
PCIe CLK
(100 MHz)
PCI Express x16
IT8718
Floppy
LPT Port
CPU CLK+/-
(400(O.C.)/333/266/200 MHz)
PCI Express Bus
PCIe CLK
(100 MHz)
x1x1x1x1
6 SATA 3Gb/s
ATA-133/100/66/33
IDE Channel
1 PCI Express x16
Dual BIOS
COM Port
x1
LAN
RJ45
RTL8111C
Center/Subwoofer Speaker Out
Line Out
MIC
Line In
S/PDIF In
S/ PDIF Out
Side Speaker Out
Surround Speaker Out
CODEC
4 PCI Express x1
JMicron
368

- 9 - Hardware Installation
1-1 Installation Precautions
The motherboard contains numerous delicate electronic circuits and components which can
become damaged as a result of electrostatic discharge (ESD). Prior to installation, carefully read
the user's manual and follow these procedures:
• Prior to installation, do not remove or break motherboard S/N (Serial Number) sticker or
warranty sticker provided by your dealer. These stickers are required for warranty validation.
• Always remove the AC power by unplugging the power cord from the power outlet before
installing or removing the motherboard or other hardware components.
• When connecting hardware components to the internal connectors on the motherboard,
make sure they are connected tightly and securely.
• When handling the motherboard, avoid touching any metal leads or connectors.
• It is best to wear an electrostatic discharge (ESD) wrist strap when handling electronic com-
ponents such as a motherboard, CPU or memory. If you do not have an ESD wrist strap,
keep your hands dry and rst touch a metal object to eliminate static electricity.
• Prior to installing the motherboard, please have it on top of an antistatic pad or within an
electrostatic shielding container.
• Before unplugging the power supply cable from the motherboard, make sure the power sup-
ply has been turned off.
• Before turning on the power, make sure the power supply voltage has been set according to
the local voltage standard.
• Before using the product, please verify that all cables and power connectors of your hard-
ware components are connected.
• To prevent damage to the motherboard, do not allow screws to come in contact with the
motherboard circuit or its components.
• Make sure there are no leftover screws or metal components placed on the motherboard or
within the computer casing.
• Do not place the computer system on an uneven surface .
• Do not place the computer system in a high-temperature environment.
• Turning on the computer power during the installation process can lead to damage to sys-
tem components as well as physical harm to the user.
• If you are uncertain about any installation steps or have a problem related to the use of the
product, please consult a certied computer technician.
Chapter 1 Hardware Installation

GA-EP43T-UD3L Motherboard - 10 -
1-2 Product Specications
CPU wSupport for an Intel®Core™ 2 Extreme processor/
Intel®Core™ 2 Quad processor/Intel®Core™ 2 Duo processor/
Intel®Pentium®processor/Intel®Celeron®processor in the LGA775 package
(Go to GIGABYTE's website for the latest CPU support list.)
wL2 cache varies with CPU
Front Side Bus w1600(O.C.)/1333/1066/800 MHz FSB
Chipset w North Bridge: Intel®P43 Express Chipset
w South Bridge: Intel®ICH10
Memory w4 x 1.5V DDR3 DIMM sockets supporting up to 8 GB of system memory (Note 1)
w Dual channel memory architecture
wSupport for DDR3 1600/1333/1066/800 MHz memory modules
(Go to GIGABYTE's website for the latest memory support list.)
Audio wRealtek ALC888 codec
w High Denition Audio
w 2/4/5.1/7.1-channel
wSupport for S/PDIF In/Out
w Support for CD In
LAN   w RTL8111C chip (10/100/1000 Mbit)
Expansion Slots w1 x PCI Express x16 slot, running at x16
(The PCI Express x16 slot conforms to PCI Express 2.0 standard.)
w4 x PCI Express x1 slots
w 2 x PCI slots
Storage Interface wSouth Bridge:
- 6 x SATA 3Gb/s connectors supporting up to 6 SATA 3Gb/s devices
wJMicron 368 chip:
- 1 x IDE connector supporting ATA-133/100/66/33 and up to 2 IDE devices
wiTE IT8718 chip:
- 1 x oppy disk drive connector supporting up to 1 oppy disk drive
USB wIntegrated in the South Bridge
wUp to 12 USB 2.0/1.1 ports (8 on the back panel, 4 via the USB brackets
connected to the internal USB headers)

- 11 - Hardware Installation
Internal Connectors w1 x 24-pin ATX main power connector
w1 x 4-pin ATX 12V power connector
w 1 x oppy disk drive connector
w1 x IDE connector
w6 x SATA 3Gb/s connectors
w1 x CPU fan header
w2 x system fan headers
w1 x power fan header
w1 x front panel header
w1 x front panel audio header
w1 x CD In connector
w1 x S/PDIF In header
w1 x S/PDIF Out header
w2 x USB 2.0/1.1 headers
w1 x parallel port header
w1 x serial port header
w1 x power LED header
w1 x chassis intrusion header
w1 x clearing CMOS jumper
Back Panel w1 x PS/2 keyboard port
Connectors w1 x PS/2 mouse port
w
1 x coaxial S/PDIF Out connector
w
1 x optical S/PDIF Out connector
w8 x USB 2.0/1.1 ports
w1 x RJ-45 port
w6 x audio jacks (Center/Subwoofer Speaker Out/Rear Speaker Out/
Side Speaker Out/Line In/Line Out/Microphone)
I/O Controller wiTE IT8718 chip
Hardware Monitor wSystem voltage detection
wCPU/System temperature detection
wCPU/System/Power fan speed detection
wCPU overheating warning
wCPU/System/Power fan fail warning
wCPU/System fan speed control (Note 2)

GA-EP43T-UD3L Motherboard - 12 -
BIOS w 2 x 8 Mbit ash
wUse of licensed AWARD BIOS
wSupport for DualBIOS™
wPnP 1.0a, DMI 2.0, SM BIOS 2.4, ACPI 1.0b
Unique Features wSupport for @BIOS
wSupport for Q-Flash
wSupport for Xpress BIOS Rescue
wSupport for Download Center
wSupport for Xpress Install
wSupport for Xpress Recovery2
wSupport for EasyTune(Note 3)
wSupport for Dynamic Energy Saver Advanced
wSupport for Time Repair
wSupport for Q-Share
Bundled Software wNorton Internet Security (OEM version)
Operating System wSupport for Microsoft®Windows®Vista/XP
Form Factor wATX Form Factor; 30.5cm x 21.0cm
(Note 1) Due to Windows Vista/XP 32-bit operating system limitation, when more than 4 GB of physical
memory is installed, the actual memory size displayed will be less than 4 GB.
(Note 2) Whether the CPU/system fan speed control function is supported will depend on the CPU/system
cooler you install.
(Note 3) Available functions in EasyTune may differ by motherboard model.

- 13 - Hardware Installation
1-3 Installing the CPU and CPU Cooler
Read the following guidelines before you begin to install the CPU:
• Make sure that the motherboard supports the CPU.
(Go to GIGABYTE's website for the latest CPU support list.)
• Always turn off the computer and unplug the power cord from the power outlet before installing
the CPU to prevent hardware damage.
• Locate the pin one of the CPU. The CPU cannot be inserted if oriented incorrectly. (Or you may
locate the notches on both sides of the CPU and alignment keys on the CPU socket.)
• Apply an even and thin layer of thermal grease on the surface of the CPU.
• Do not turn on the computer if the CPU cooler is not installed, otherwise overheating and dam-
age of the CPU may occur.
• Set the CPU host frequency in accordance with the CPU specications. It is not recommended
that the system bus frequency be set beyond hardware specications since it does not meet the
standard requirements for the peripherals. If you wish to set the frequency beyond the standard
specications, please do so according to your hardware specications including the CPU, graph-
ics card, memory, hard drive, etc.
1-3-1 Installing the CPU
A. Locate the alignment keys on the motherboard CPU socket and the notches on the CPU.
Notch Notch
Alignment KeyAlignment Key
LGA775 CPU
LGA775 CPU Socket
Pin One Corner of the CPU Socket
Triangle Pin One Marking on the CPU

GA-EP43T-UD3L Motherboard - 14 -
B. Follow the steps below to correctly install the CPU into the motherboard CPU socket.
Before installing the CPU, make sure to turn off the computer and unplug the power cord from
the power outlet to prevent damage to the CPU.
Step 1:
Completely raise the CPU socket lever.
Step 3:
Remove the protective socket cover from the
load plate. (To protect the CPU socket, always
replace the protective socket cover when the
CPU is not installed.)
Step 5:
Once the CPU is properly inserted, replace the
load plate and push the CPU socket lever back
into its locked position.
Step 2:
Lift the metal load plate from the CPU socket.
(DO NOT touch socket contacts.)
Step 4:
Hold the CPU with your thumb and index ngers.
Align the CPU pin one marking (triangle) with the
pin one corner of the CPU socket (or you may
align the CPU notches with the socket alignment
keys) and gently insert the CPU into position.
CPU Socket Lever

- 15 - Hardware Installation
1-3-2 Installing the CPU Cooler
Follow the steps below to correctly install the CPU cooler on the motherboard. (The following procedure uses
Intel®boxed cooler as the example cooler.)
Step 1:
Apply an even and thin layer of thermal grease
on the surface of the installed CPU.
Male Push
Pin
Female
Push Pin
The Top
of Female
Push Pin
Direction of the
Arrow Sign on
the Male Push
Pin
Step 2:
Before installing the cooler, note the direction of
the arrow sign on the male push pin. (Turn-
ing the push pin along the direction of arrow is to
remove the cooler, on the contrary, is to install.)
Step 3:
Place the cooler atop the CPU, aligning the four
push pins through the pin holes on the mother-
board. Push down on the push pins diagonally.
Step 4:
You should hear a "click" when pushing down
each push pin. Check that the Male and Female
push pins are joined closely. (Refer to your CPU
cooler installation manual for instructions on
installing the cooler.)
Use extreme care when removing the CPU cooler because the thermal grease/tape between the
CPU cooler and CPU may adhere to the CPU. Inadequately removing the CPU cooler may damage
the CPU.
Step 5:
After the installation, check the back of the moth-
erboard. If the push pin is inserted as the picture
above shows, the installation is complete.
Step 6:
Finally, attach the power connector of the CPU
cooler to the CPU fan header (CPU_FAN) on the
motherboard.

GA-EP43T-UD3L Motherboard - 16 -
1-4-1 Dual Channel Memory Conguration
This motherboard provides four DDR3 memory sockets and supports Dual Channel Technology. After
the memory is installed, the BIOS will automatically detect the specications and capacity of the memory.
Enabling Dual Channel memory mode will double the original memory bandwidth.
The four DDR3 memory sockets are divided into two channels and each channel has two memory sockets as
following:
Channel 0: DDR3_1, DDR3_2
Channel 1: DDR3_3, DDR3_4
1-4 Installing the Memory
DDR3_1 DDR3_2 DDR3_3 DDR3_4
Dual Channel Memory Congurations Table
(SS=Single-Sided, DS=Double-Sided, "- -"=No Memory)
DDR3_1 DDR3_2 DDR3_3 DDR3_4
DS/SS - - DS/SS - -
- - DS/SS - - DS/SS
DS/SS DS/SS DS/SS DS/SS
Two Modules
Four Modules
Due to chipset limitations, read the following guidelines before installing the memory in Dual Channel mode.
1. Dual Channel mode cannot be enabled if only one DDR3 memory module is installed.
2. When enabling Dual Channel mode with two or four memory modules, it is recommended that
memory of the same capacity, brand, speed, and chips be used and installed in the same colored
DDR3 sockets for optimum performance.
Read the following guidelines before you begin to install the memory:
•Make sure that the motherboard supports the memory. It is recommended that memory of the
same capacity, brand, speed, and chips be used.
(Go to GIGABYTE's website for the latest memory support list.)
•Always turn off the computer and unplug the power cord from the power outlet before installing
the memory to prevent hardware damage.
•Memory modules have a foolproof design. A memory module can be installed in only one direc-
tion. If you are unable to insert the memory, switch the direction.
When memory modules of different capacity and chips are installed, a message which says mem-
ory is operating in Flex Memory Mode will appear during the POST. Intel Flex Memory Technology
offers greater exibility to upgrade by allowing different memory sizes to be populated and remain in
Dual Channel mode/performance.

- 17 - Hardware Installation
1-4-2 Installing a Memory
Notch
A DDR3 memory module has a notch, so it can only t in one direction. Follow the steps below to correctly
install your memory modules in the memory sockets.
Step 1:
Note the orientation of the memory module. Spread the retaining
clips at both ends of the memory socket. Place the memory module
on the socket. As indicated in the picture on the left, place your n-
gers on the top edge of the memory, push down on the memory and
insert it vertically into the memory socket.
Step 2:
The clips at both ends of the socket will snap into place when the
memory module is securely inserted.
Before installing a memory module, make sure to turn off the computer and unplug the power
cord from the power outlet to prevent damage to the memory module.
DDR3 and DDR2 DIMMs are not compatible to each other or DDR DIMMs. Be sure to install
DDR3 DIMMs on this motherboard.
DDR3 DIMM

GA-EP43T-UD3L Motherboard - 18 -
1-5 Installing an Expansion Card
Read the following guidelines before you begin to install an expansion card:
•Make sure the motherboard supports the expansion card. Carefully read the manual that came
with your expansion card.
•Always turn off the computer and unplug the power cord from the power outlet before installing
an expansion card to prevent hardware damage.
PCI Slot
PCI Express x1 Slot
PCI Express x16 Slot
Follow the steps below to correctly install your expansion card in the expansion slot.
1. Locate an expansion slot that supports your card. Remove the metal slot cover from the chassis back panel.
2. Align the card with the slot, and press down on the card until it is fully seated in the slot.
3. Make sure the metal contacts on the card are completely inserted into the slot.
4. Secure the card’s metal bracket to the chassis back panel with a screw.
5. After installing all expansion cards, replace the chassis cover(s).
6. Turn on your computer. If necessary, go to BIOS Setup to make any required BIOS changes for your
expansion card(s).
7. Install the driver provided with the expansion card in your operating system.
Example: Installing and Removing a PCI Express Graphics Card:
•Installing a Graphics Card:
Gently push down on the top edge of the card until
it is fully inserted into the PCI Express slot. Make
sure the card is securely seated in the slot and
does not rock.
•Removing the Card:
Press the white latch at the end of the PCI Express slot to release the card and
then pull the card straight up from the slot.

- 19 - Hardware Installation
1-6 Back Panel Connectors
PS/2 Keyboard and PS/2 Mouse Port
Use the upper port (green) to connect a PS/2 mouse and the lower port (purple) to connect a PS/2
keyboard.
Optical S/PDIF Out Connector
This connector provides digital audio out to an external audio system that supports digital optical audio.
Before using this feature, ensure that your audio system provides an optical digital audio in connector.
Coaxial S/PDIF Out Connector
This connector provides digital audio out to an external audio system that supports digital coaxial audio.
Before using this feature, ensure that your audio system provides a coaxial digital audio in connector.
USB Port
The USB port supports the USB 2.0/1.1 specication. Use this port for USB devices such as a USB
keyboard/mouse, USB printer, USB ash drive and etc.
RJ-45 LAN Port
The Gigabit Ethernet LAN port provides Internet connection at up to 1 Gbps data rate. The following
describes the states of the LAN port LEDs.
Activity LED:
State Description
Blinking Data transmission or receiving is occurring
Off No data transmission or receiving is occurring
Connection/Speed LED:
State Description
Orange 1 Gbps data rate
Green 100 Mbps data rate
Off 10 Mbps data rate
Activity LED
Connection/
Speed LED
LAN Port
• When removing the cable connected to a back panel connector, rst remove the cable from your
device and then remove it from the motherboard.
• When removing the cable, pull it straight out from the connector. Do not rock it side to side to
prevent an electrical short inside the cable connector.

GA-EP43T-UD3L Motherboard - 20 -
Center/Subwoofer Speaker Out Jack (Orange)
Use this audio jack to connect center/subwoofer speakers in a 5.1/7.1-channel audio conguration.
Rear Speaker Out Jack (Black)
Use this audio jack to connect rear speakers in a 4/5.1/7.1-channel audio conguration.
Side Speaker Out Jack (Gray)
Use this audio jack to connect side speakers in a 7.1-channel audio conguration.
Line In Jack (Blue)
The default line in jack. Use this audio jack for line in devices such as an optical drive, walkman, etc.
Line Out Jack (Green)
The default line out jack. Use this audio jack for a headphone or 2-channel speaker. This jack can be
used to connect front speakers in a 4/5.1/7.1-channel audio conguration.
Mic In Jack (Pink)
The default Mic in jack. Microphones must be connected to this jack.
In addition to the default speakers settings, the ~ audio jacks can be reconfigured to
perform different functions via the audio software. Only microphones still MUST be connected to
the default Mic in jack ( ). Refer to the instructions on setting up a 2/4/5.1/7.1-channel audio
conguration in Chapter 5, "Conguring 2/4/5.1/7.1-Channel Audio."