Gigabyte GA-Z68XP-UD3P User manual

GA-Z68XP-UD3P
User's Manual
Rev. 1001
12ME-Z68XP3P-1001R

Motherboard
GA-Z68XP-UD3P
May 31, 2011
May 31, 2011
Motherboard
GA-Z68XP-UD3P

Copyright
©2011 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 specifications and features in this manual may be made by GIGABYTE
without 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 product-related information, check on our website at:
http://www.gigabyte.com
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-Z68XP-UD3P Motherboard Layout...........................................................................7
GA-Z68XP-UD3P Motherboard 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 Setting up AMD CrossFireX™/NVIDIASLIConguration.............................. 19
1-7 Back Panel Connectors ................................................................................. 20
1-8 Internal Connectors ....................................................................................... 22
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 ............................................................................. 46
2-5 Advanced BIOS Features.............................................................................. 48
2-6 Integrated Peripherals ................................................................................... 50
2-7 Power Management Setup ............................................................................ 53
2-8 PC Health Status ........................................................................................... 55
2-9 Load Fail-Safe Defaults ................................................................................. 57
2-10 Load Optimized Defaults ............................................................................... 57
2-11 Set Supervisor/User Password ..................................................................... 58
2-12 Save & Exit Setup.......................................................................................... 59
2-13 Exit Without Saving........................................................................................ 59

- 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
3-7 New Utilities ................................................................................................... 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™2.............................................................................. 73
4-5 Q-Share ......................................................................................................... 75
4-6 Smart 6™....................................................................................................... 76
4-7 Auto Green..................................................................................................... 80
4-8 eXtreme Hard Drive (X.H.D).......................................................................... 81
4-9 Cloud OC ....................................................................................................... 82
4-10 TouchBIOS..................................................................................................... 83
Chapter 5 Appendix......................................................................................................85
5-1 ConguringSATAHardDrive(s) ................................................................... 85
5-1-1 ConguringIntelZ68SATAControllers .............................................................. 85
5-1-2 ConguringMarvell88SE9172SATAControllers.................................................93
5-1-3 Installing the SATA RAID/AHCI Driver and Operating System............................ 99
5-2 ConguringAudioInputandOutput ............................................................ 108
5-2-1 Conguring2/4/5.1/7.1-ChannelAudio................................................................108
5-2-2 ConguringS/PDIFOut.......................................................................................110
5-2-3 Enabling the Dolby Home Theater Function .......................................................111
5-2-4 ConguringMicrophoneRecording.....................................................................112
5-2-5 Using the Sound Recorder ..................................................................................114
5-3 Troubleshooting ............................................................................................115
5-3-1 Frequently Asked Questions ...............................................................................115
5-3-2 Troubleshooting Procedure .................................................................................116

- 6 -
Box Contents
GA-Z68XP-UD3P motherboard
Motherboard driver disk
User's Manual
Quick Installation Guide
Four SATA cables
I/O Shield
One 2-Way SLI bridge connector
Optional Items
2-port USB 2.0 bracket (Part No. 12CR1-1UB030-5*R)
2-port SATA power cable (Part No. 12CF1-2SERPW-0*R)
COM port cable (Part No. 12CF1-1CM001-3*R)
2-port IEEE 1394a bracket (Part No. 12CF1-1IE008-0*R)
3.5" Front Panel with 2 USB 3.0/2.0 ports (Part No. 12CR1-FPX582-0*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.

- 7 -
GA-Z68XP-UD3P Motherboard Layout
KB_MS_USB CPU_FAN
ATX_12V_2X4
ATX
F_AUDIO
AUDIO
B_BIOS
PCIEX8
DDR3_2 DDR3_1 DDR3_4 DDR3_3
BAT
F_PANEL
COMA
Intel®Z68
SATA3_1
SATA2_3
SATA2_5
SATA3_0
SATA2_2
SATA2_4
PCI2
CLR_CMOS
CODEC
SYS_FAN1
M_BIOS
PCIEX1_2
PCIEX16
SPDIF_O
F_USB1
SYS_FAN2
LGA1155
GA-Z68XP-UD3P
PWR_FAN
OPTICAL
USB_HDMI
R_USB30
USB_1394
PHASE LED
USB_LAN
Realtek
RTL8111E
PCI1
VIA
VT6308 Etron
EJ168
F_USB30
PCIEX1_3
PCIe to PCI
Bridge
GSATA3_7
GSATA3_6
iTE
IT8728
F_1394 F_USB2F_USB3
Etron
EJ168
Marvell
88SE9172
TPM
PCIEX1_1

- 8 -
GA-Z68XP-UD3P Motherboard Block Diagram
Center/Subwoofer Speaker Out
Line Out
MIC
Line In
S/PDIF Out
Side Speaker Out
Surround Speaker Out
PS/2 KB/Mouse
LGA1155
CPU
PCI Express Bus
CPU CLK+/- (100 MHz)
2 SATA 6Gb/s
Dual BIOS
14 USB 2.0/1.1
DDR3 2133/1866/1600/1333/1066 MHz
Dual Channel Memory
COM Port
LPC Bus
x1
2 USB 3.0/2.0
Etron
EJ168
iTE
IT8728
PCIe CLK
(100 MHz)
Switch
x8
x16
1 PCI Express x16 2 PCI Express x8
or
x1
2 USB 3.0/2.0
Etron
EJ168
4 SATA 3Gb/s
PCI Express Bus
PCI Express Bus
PCIe CLK
(100 MHz)
3 PCI Express x1
x1x1
2 PCI
PCI Bus
PCI CLK
(33 MHz)
PCIe to PCI Bridge
x1
CODEC
2 SATA 6Gb/s LAN
RJ45
x1
x1
Marvell
88SE9172
Realtek
RTL8111E
VIA VT6308
2 IEEE 1394a
x1
HDMI
Intel®Z68
DMI 2.0 FDI

- 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

Hardware Installation - 10 -
1-2 Product Specications
CPU Support for Intel®Core™i7 processors/Intel®Core™i5 processors/
Intel®Core™i3 processors/Intel®Pentium®processors/Intel®Celeron®processors
in the LGA1155 package
(Go to GIGABYTE's website for the latest CPU support list.)
L3 cache varies with CPU
Chipset Intel®Z68 Express Chipset
Memory 4 x 1.5V DDR3 DIMM sockets supporting up to 32 GB of system memory
* Due to Windows 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.
Dual channel memory architecture
Support for DDR3 2133/1866/1600/1333/1066 MHz memory modules
Support for non-ECC memory modules
SupportforExtremeMemoryProle(XMP)memorymodules
(Go to GIGABYTE's website for the latest supported memory speeds and memory
modules.)
Onboard
Graphics
Integrated in the Chipset:
- 1 x HDMI port, supporting a maximum resolution of 1920x1200
Audio Realtek ALC889 codec
HighDenitionAudio
2/4/5.1/7.1-channel
Support for Dolby®Home Theater
Support for S/PDIF Out
LAN 1 x Realtek RTL8111E chip (10/100/1000 Mbit)
Expansion Slots 1 x PCI Express x16 slot, running at x16 (PCIEX16)
* For optimum performance, if only one PCI Express graphics card is to be installed,
be sure to install it in the PCIEX16 slot.
1 x PCI Express x16 slot, running at x8 (PCIEX8)
* The PCIEX8 slot shares bandwidth with the PCIEX16 slot. When the PCIEX8 slot
is populated, the PCIEX16 slot will operate at up to x8 mode.
3 x PCI Express x1 slots
(All PCI Express slots conform to PCI Express 2.0 standard.)
2 x PCI slots
Multi-Graphics
Technology
Support for AMD CrossFireX™/NVIDIA SLI technology
* The PCIEX16 slot operates at up to x8 mode when AMD CrossFireX™/NVIDIA SLI
is enabled.
Storage Interface Chipset:
- 2 x SATA 6Gb/s connectors (SATA3_0~SATA3_1) supporting up to 2 SATA
6Gb/s devices
- 4 x SATA 3Gb/s connectors (SATA2_2~SATA2_5) supporting up to 4 SATA
3Gb/s devices
- Support for RAID 0, RAID 1, RAID 5, and RAID 10
* When a RAID set is built across the SATA 6Gb/s and SATA 3Gb/s channels, the
system performance of the RAID set may vary depending on the devices being
connected.

- 11 - Hardware Installation
Storage Interface Marvell 88SE9172 chip:
- 2 x SATA 6Gb/s connectors (GSATA3_6, GSATA3_7) supporting up to 2
SATA 6Gb/s devices
- Support for RAID 0 and RAID 1
USB Chipset:
- Up to 14 USB 2.0/1.1 ports (8 ports on the back panel, 6 ports available
through the internal USB headers)
2 x Etron EJ168 chips:
- Up to 4 USB 3.0/2.0 ports (2 ports on the back panel, 2 ports available through
the internal USB headers)
IEEE 1394 VIA VT6308 chip:
- Up to 2 IEEE 1394a ports (1 port on the back panel, 1 port available through
the internal IEEE 1394a header)
Internal
Connectors
1 x 24-pin ATX main power connector
1 x 8-pin ATX 12V power connector
4 x SATA 6Gb/s connectors
4 x SATA 3Gb/s connectors
1 x CPU fan header
2 x system fan headers
1 x power fan header
1 x front panel header
1 x front panel audio header
1 x S/PDIF Out header
3 x USB 2.0/1.1 headers
1 x USB 3.0/2.0 header
1 x IEEE 1394a header
1 x serial port header
1 x clearing CMOS jumper
1 x Trusted Platform Module (TPM) header
Back Panel
Connectors
1 x PS/2 keyboard/mouse port
1 x optical S/PDIF Out connector
1 x IEEE 1394 port
1 x HDMI port
8 x USB 2.0/1.1 ports
2 x USB 3.0/2.0 ports
1 x RJ-45 port
6 x audio jacks (Center/Subwoofer Speaker Out/Rear Speaker Out/Side Speaker
Out/Line In/Line Out/Microphone)
I/O Controller iTE IT8728 chip

Hardware Installation - 12 -
Hardware
Monitor
System voltage detection
CPU/System temperature detection
CPU/System/Power fan speed detection
CPU overheating warning
CPU/System/Power fan fail warning
CPU/System fan speed control
* Whether the CPU/system fan speed control function is supported will depend on
the CPU/system cooler you install.
BIOS 2x32Mbitash
Use of licensed AWARD BIOS
Support for DualBIOS™
PnP 1.0a, DMI 2.0, SM BIOS 2.4, ACPI 1.0b
Unique Features Support for @BIOS
Support for Q-Flash
Support for Xpress BIOS Rescue
Support for Download Center
Support for Xpress Install
Support for Xpress Recovery2
Support for EasyTune
* Available functions in EasyTune may differ by motherboard model.
Support for Dynamic Energy Saver™2
Support for Smart 6™
Support for Auto Green
Support for eXtreme Hard Drive (X.H.D)
Support for ON/OFF Charge
Support for Cloud OC
Support for 3TB+ Unlock
Support for TouchBIOS
Support for Q-Share
Bundled
Software
Norton Internet Security (OEM version)
Intel®Smart Response Technology
LucidLogix Virtu
* Make sure the monitor cable has been connected to the integrated graphics port
on the back panel.
Operating
System Support for Microsoft®Windows 7/Vista/XP
Form Factor ATX Form Factor; 30.5cm x 24.4cm
*GIGABYTE reserves theright to make any changes to the product specications and product-related information
without prior notice.

- 13 - Hardware Installation
1-3 Installing the CPU and CPU Cooler
1-3-1 Installing the CPU
A. Locate the alignment keys on the motherboard CPU socket and the notches on the CPU.
Alignment KeyAlignment Key
LGA1155 CPU Socket
Pin One Corner of the CPU Socket
Notch
Notch
LGA1155 CPU
Triangle Pin One Marking on the CPU
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.

Hardware Installation - 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:
Gently press the CPU socket lever handle down
andawayfromthesocketwithyournger.Then
completely lift the CPU socket lever and the metal
load plate will be lifted as well.
Step 3:
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.
Step 5:
Push the CPU socket lever back into its locked
position.
Step 4:
Once the CPU is properly inserted, use one
hand to hold the socket lever and use the other
to lightly replace the load plate. When replacing
the load plate, make sure the front end of the
load plate is under the shoulder screw.
NOTE:
Hold the CPU socket lever by the handle, not the
lever base portion.
Step 2:
Remove the CPU socket cover as shown. Hold
your index finger down on the rear grip of the
socket cover and use your thumb to lift up the
front edge (next to the "REMOVE" mark) and
then remove the cover. (DO NOT touch socket
contacts. To protect the CPU socket, always re-
place the protective socket cover when the CPU
is not installed.)

- 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.)
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 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.)
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.

Hardware Installation - 16 -
1-4 Installing the Memory
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 supported memory speeds and memory modules.)
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.
Due to CPU 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. For optimum performance, when
enabling Dual Channel mode with two memory modules, we recommend that you install them in the
DDR3_1 and DDR3_2 sockets.
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.En-
abling 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 A: DDR3_2, DDR3_4
Channel B: DDR3_1, DDR3_3
DDR3_4 DDR3_2 DDR3_3 DDR3_1
DualChannelMemoryCongurationsTable
(SS=Single-Sided, DS=Double-Sided, "- -"=No Memory)
DDR3_4 DDR3_2 DDR3_3 DDR3_1
Two Modules - - DS/SS - - DS/SS
DS/SS - - DS/SS - -
Four Modules DS/SS DS/SS DS/SS DS/SS

- 17 - Hardware Installation
1-4-2 Installing a Memory
Notch
DDR3 DIMM
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.

Hardware Installation - 18 -
1-5 Installing an Expansion Card
Follow the steps below to correctly install your expansion card in the expansion slot.
Locate an expansion slot that supports your card. Remove the metal slot cover from the chassis back panel.1.
Align the card with the slot, and press down on the card until it is fully seated in the slot.2.
Make sure the metal contacts on the card are completely inserted into the slot.3.
Secure the card’s metal bracket to the chassis back panel with a screw.4.
After installing all expansion cards, replace the chassis cover(s).5.
Turn on your computer. If necessary, go to BIOS Setup to make any required BIOS changes for your6.
expansion card(s).
Install the driver provided with the expansion card in your operating system.7.
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 latch at the end of the PCI Express slot to release the card and then
pull the card straight up from the slot.
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 Express x1 Slot
PCI Express x16 Slot
PCI Slot

- 19 - Hardware Installation
1-6 Setting up AMD CrossFireX™/NVIDIA SLI Conguration
A. System Requirements
- Windows 7, Windows Vista or Windows XP operating system
- A CrossFireX/SLI-supported motherboard with two PCI Express x16 slots and correct driver
- Two CrossFireX/SLI-ready graphics cards of identical brand and chip and correct driver
- CrossFireX (Note)/SLI bridge connector(s)
 - Apowersupplywithsufcientpowerisrecommended(Refertothemanualofyourgraphicscardsfor
the power requirement)
B. Connecting the Graphics Cards
Step 1:
Observe the steps in "1-5 Installing an Expansion Card" and install two CrossFireX/SLI graphics cards on the
PCI Express x16 slots.
Step 2:
Insert the CrossFireX (Note)/SLI bridge connector(s) in the CrossFireX/SLI gold edge connectors on top of the
two cards.
Step 3:
Plug the display cable into the graphics card on the PCIEX16 slot.
C. Conguring the Graphics Card Driver
C-1. To Enable CrossFireX Function
After installing the graphics card driver in the operating system, go to the Cata-
lyst Control Center. Browse to Performance\AMD CrossFireX Congura-
tions and ensure the Enable CrossFireX™check box is selected and click
Apply.
Procedure and driver screen for enabling CrossFireX/SLI technology may differ by graphics cards.
Refer to the manual that came with your graphics cards for more information about enabling Cross-
FireX/SLI technology.
C-2. To Enable SLI Function
After installing the graphics card driver in the operating system, go
to the NVIDIA Control Panel. Browse to the Set SLI and Physx
Configuration screen and ensure Maximize 3D performance is
enabled.
(Note) The bridge connector(s) may be needed or not depending on your graphics cards.

Hardware Installation - 20 -
1-7 Back Panel Connectors
USB 2.0/1.1 Port
TheUSBportsupportstheUSB2.0/1.1specication.UsethisportforUSBdevicessuchasaUSBkey-
board/mouse,USBprinter,USBashdriveandetc.
PS/2 Keyboard/Mouse Port
Use this port to connect a PS/2 mouse or 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.
IEEE 1394a Port
TheIEEE1394portsupportstheIEEE1394aspecication,featuringhighspeed,highbandwidthand
hotplug capabilities. Use this port for an IEEE 1394a device.
HDMI Port
HDMI(High-DenitionMultimediaInterface)isanall-digitalaudio/videointerfacecapableoftransmittingun-
compressed audio/video signals. The HDMI port is HDCP compliant and supports Dolby TrueHD and DTS HD
Master Audio formats. You can use this port to connect your HDMI-supported audio/video device. The maxi-
mum supported resolution is 1920x1200, but the actual resolutions supported are dependent on the monitor
being used.
After installing the HDMI device, make sure to set the default sound playback device to HDMI. (The
item name may differ depending on your operating system. Refer to the screenshot below.)
In Windows 7, select Start>Control Panel>Hardware and
Sound>Sound>Playback, set Intel(R) Display Audio to
the default playback device.