Gigabyte GA-B75M-HD3 User manual

GA-B75M-HD3
User's Manual
Rev. 1001
12ME-B75MHD3-1001R

Declaration of Conformity
We, Manufacturer/Importer,
G.B.T. Technology Trading GMbH
Address: Bullenkoppel 16, 22047 Hamburg, Germany Declare that the product Product Type: Product Name: conforms with the essential requirements of the following directives:
2004/108/EC EMC Directive:
Conduction & Radiated Emissions: EN55022:2006+A1:2007 Immunity:EN55024:1998+A1:2001+A2:2003 Power-line harmonics: EN61000-3-2:2006 Power-line flicker: EN61000-3-3:2008
2006/95/EC LVD Directive
Safety:EN60950-1:2006+A11:2009
2011/65/EU RoHS Directive
Restriction of use of certain
substances in electronic equipment:
This product does not contain any of the restricted substances listed in Annex II, in concentrations and applications banned by the directive.
CE marking
(EC conformity marking)
Signature:
(Stamp) Date: Name:
Timmy Huang Timmy Huang
Motherboard
GA-B75M-HD3
Sept. 28, 2012
Sept. 28, 2012
Motherboard GA-B75M-HD3

Copyright
©2012 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
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
GA-B75M-HD3 Motherboard Layout ...............................................................................5
GA-B75M-HD3 Motherboard Block Diagram...................................................................6
Chapter 1 Hardware Installation .....................................................................................7
1-1 Installation Precautions.................................................................................... 7
1-2 ProductSpecications...................................................................................... 8
1-3 Installing the CPU .......................................................................................... 10
1-4 Installing the Memory..................................................................................... 11
1-5 Installing an Expansion Card ......................................................................... 11
1-6 Back Panel Connectors.................................................................................. 12
1-7 Internal Connectors........................................................................................ 14
Chapter 2 BIOS Setup ..................................................................................................22
2-1 Startup Screen ............................................................................................... 22
2-2 The Main Menu .............................................................................................. 23
2-3 M.I.T. .............................................................................................................. 24
2-4 System ........................................................................................................... 31
2-5 BIOS Features ............................................................................................... 32
2-6 Peripherals..................................................................................................... 35
2-7 Power Management....................................................................................... 38
2-8 Save & Exit..................................................................................................... 40
Chapter 3 Drivers Installation........................................................................................41
Chapter 4 Appendix ......................................................................................................42
Regulatory Statements.............................................................................................. 42

- 5 -
GA-B75M-HD3 Motherboard Layout
KB_MS_USB
CPU_FAN
SYS_FAN
LGA1155
ATX
GA-B75M-HD3
F_AUDIO
AUDIO
B_BIOS
DDR3_1
DDR3_2
BAT
ATX_12V
Intel®B75
SATA2
SATA2
R_USB30
CODEC
CLR_CMOS
F_USB30
M_BIOS
VGA
DVI
LPT
USB_LAN
PCIEX16
PCIEX1_1
PCIEX1_2
PCI
iTE Super I/O
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.
Realtek
GbE LAN
F_USB2 F_USB1
F_PANEL
COM
4 3
5
Box Contents
5GA-B75M-HD3 motherboard
5Motherboard driver disk 5Two SATA 6Gb/s cables
5User's Manual
5Quick Installation Guide
5I/O Shield
HDMI
SATA2 1
SATA3 0
SATA2 2

- 6 -
iTE
Super I/O
GA-B75M-HD3 Motherboard Block Diagram
PS/2 KB/Mouse
LGA1155
CPU
Intel®B75
PCIe CLK
(100 MHz)
PCI Express Bus
CPU CLK+/- (100 MHz)
1 PCI Express x16
Dual BIOS
COM
LPT
8 USB 2.0/1.1
4 USB 3.0/2.0
DDR3 1600/1333/1066 MHz
PCI Express Bus
PCIe CLK
(100 MHz)
2 PCI Express x1
5 SATA 3Gb/s
D-Sub
DVI-D 1 SATA 6Gb/s
DMI 2.0
FDI
x16
Dual Channel Memory
x1 x1 x1
PCI CLK
(33 MHz)
1 PCI
PCI Bus LAN
RJ45
Realtek
GbE LAN
LPC
Bus
Line Out (Front Speaker Out)
MIC (Center/Subwoofer
Speaker Out)
Line In (Rear Speaker Out)
CODEC
Fordetailedproductinformation/limitation(s),referto"1-2ProductSpecications."
HDMI

- 7 -
Chapter 1 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, make sure the chassis is suitable for the motherboard.
•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
components 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 supply
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 hardware
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 system
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.

- 8 -
1-2 ProductSpecications
CPU Support for Intel®Core™i7 processors/Intel®Core™i5 processors/
Intel®Core™i3 processors/Intel®Pentium®processors/
Itel®Celeron®processors in the LGA1155 package
(Go to GIGABYTE's website for the latest CPU support list.)
L3 cache varies with CPU
Chipset Intel®B75 Express Chipset
Memory 2 x 1.5V DDR3 DIMM sockets supporting up to 16 GB of system memory
* Due to a 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 the
size of the physical memory installed.
Dual channel memory architecture
Support for DDR3 1600/1333/1066 MHz memory modules
* To support DDR3 1600 MHz, you must install an Intel 22nm (Ivy Bridge) CPU.
Support for non-ECC memory modules
SupportforExtremeMemoryProle(XMP)memorymodules
* To support XMP memory, you must install an Intel 22nm (Ivy Bridge) CPU.
(Go to GIGABYTE's website for the latest supported memory speeds and memory
modules.)
Onboard
Graphics
Integrated Graphics Processor:
- 1 x D-Sub port
- 1 x DVI-D port, supporting a maximum resolution of 1920x1200
* The DVI-D port does not support D-Sub connection by adapter.
- 1 x HDMI port, supporting a maximum resolution of 1920x1200
Audio Realtek ALC887 codec
HighDenitionAudio
2/4/5.1/7.1-channel
* Tocongure7.1-channelaudio,youhavetouseanHDfrontpanelaudiomodule
and enable the multi-channel audio feature through the audio driver.
LAN Realtek GbE LAN chip (10/100/1000 Mbit)
Expansion Slots 1 x PCI Express x16 slot, running at x16
(The PCI Express x16 slot conforms to PCI Express 3.0 standard.)
* Whether PCI Express 3.0 is supported depends on CPU and graphics card
compatibility.
2 x PCI Express x1 slots
(All PCI Express x1 slots conform to PCI Express 2.0 standard.)
1 x PCI slot
Storage Interface Chipset:
- 1 x SATA 6Gb/s connector (SATA3 0) supporting up to 1 SATA 6Gb/s device
- 5 x SATA 3Gb/s connectors (SATA2 1~5) supporting up to 5 SATA 3Gb/s
devices
USB Chipset:
- Up to 4 USB 3.0/2.0 ports (2 ports on the back panel, 2 ports available through
the internal USB header)
* In Windows XP, the Intel USB 3.0 ports can support up to USB 2.0 transfer speed.
- Up to 8 USB 2.0/1.1 ports (4 ports on the back panel, 4 ports available through
the internal USB header)

- 9 -
Internal
Connectors
1 x 24-pin ATX main power connector
1 x 4-pin ATX 12V power connector
1 x SATA 6Gb/s connector
5 x SATA 3Gb/s connectors
1 x CPU fan header
1 x system fan header
1 x front panel header
1 x front panel audio header
1 x USB 3.0/2.0 header
2 x USB 2.0/1.1 headers
1 x serial port header
1 x parallel port
1 x Clear CMOS jumper
Back Panel
Connectors
1 x PS/2 keyboard/mouse port
1 x D-Sub port
1 x DVI-D port
1 x HDMI port
2 x USB 3.0/2.0 ports
4 x USB 2.0/1.1 ports
1 x RJ-45 port
3 x audio jacks (Line In/Line Out/Microphone)
I/O Controller iTE I/O Controller Chip
Hardware
Monitor
System voltage detection
CPU/System temperature detection
CPU/System fan speed detection
CPU overheating warning
CPU/System 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64Mbitash
Use of licensed AMI EFI BIOS
Support for DualBIOS™
PnP 1.0a, DMI 2.0, SM BIOS 2.6, ACPI 2.0a
Unique Features Support for @BIOS
Support for Q-Flash
Support for Xpress Install
Support for Xpress Recovery2
Support for EasyTune
Support for Auto Green
Support for ON/OFF Charge
Support for Q-Share
Bundled
Software
Norton Internet Security (OEM version)
Intel®Rapid Start Technology
Intel®Smart Connect Technology
Intel®Small Business Advantage

- 10 -
1-3 Installing the CPU
Installing the CPU
Locate the alignment keys on the motherboard CPU socket and the notches on the CPU.
Notch
Alignment KeyAlignment Key
Notch
LGA1155 CPU
LGA1155 CPU Socket
Pin One Corner of the CPU Socket
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 damage
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,graphics
card, memory, hard drive, etc.
Operating
System Support for Microsoft®Windows 8/7/XP
Form Factor Micro ATX Form Factor; 24.4cm x 17.4cm
* GIGABYTEreservestherighttomakeanychangestotheproductspecicationsandproduct-relatedinformationwithout
prior notice.
* Please visit the Support & Downloads\Utility page on GIGABYTE's website to check the supported operating system(s)
for the software listed in the "Unique Features" and "Bundled Software" columns.

- 11 -
1-4 Installing the Memory
DualChannelMemoryConguration
This motherboard provides two 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 two DDR3 memory sockets are divided into two channels and each channel has one memory socket as
following:
Channel A: DDR3_1
Channel B: DDR3_2
DDR3_1
DDR3_2
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 memory modules, it is recommended that memory of
the same capacity, brand, speed, and chips be used 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 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 direction.
If you are unable to insert the memory, switch the direction.
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.

- 12 -
1-6 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
keyboard/mouse,USBprinter,USBashdriveandetc.
PS/2 Keyboard/Mouse Port
Use this port to connect a PS/2 mouse or keyboard.
D-Sub Port
The D-Sub port supports a 15-pin D-Sub connector. Connect a monitor that supports D-Sub connection
to this port.
DVI-D Port (Note)
TheDVI-DportconformstotheDVI-Dspecicationandsupportsamaximumresolutionof1920x1200
(the actual resolutions supported depend on the monitor being used). Connect a monitor that supports
DVI-D connection to this port.
HDMI Port
HDMI(High-DenitionMultimediaInterface)isanall-digitalaudio/videointerfacecapableoftransmitting
uncompressed audio/video signals. The HDMI port is HDCPcompliant and supports Dolby TrueHD and DTS HD
Master Audio formats. It also supports up to 192KHz/24bit 8-channel LPCM audio output. You can use this
port to connect your HDMI-supported audio/video device. The maximum supported resolution is 1920x1200,
but the actual resolutions supported are dependent on the monitor being used.
(Note) The DVI-D port does not support D-Sub connection by adapter.
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. The screenshot below is from
Windows 7.)
In Windows 7, select Start>Control Panel>Hardware and
Sound>Sound>Playback, set Intel(R) Display Audio to the
default playback device.

- 13 -
Tocongure7.1-channelaudio,youhavetouseanHDfrontpanelaudiomoduleandenablethe
multi-channel audio feature through the audio driver.
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.
Activity LED
Connection/
Speed LED
LAN Port
Connection/Speed LED:
State Description
Orange 1 Gbps data rate
Green 100 Mbps data rate
Off 10 Mbps data rate
Activity LED:
State Description
Blinking Data transmission or receiving is occurring
Off No data transmission or receiving is occurring
USB 3.0/2.0 Port
TheUSB3.0portsupportstheUSB3.0specicationandiscompatibletotheUSB2.0/1.1specication.
Use this port for USB devices 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.
DualDisplayCongurationsfortheOnboardGraphics:
This motherboard provides three video output ports: D-Sub, DVI-D, and HDMI. Dual monitor confgurations
are supported in operating system environment only, but not during the BIOS Setup or POST process.
•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.

- 14 -
1-7 Internal Connectors
1
2
6
7
10
8
4
Read the following guidelines before connecting external devices:
•First make sure your devices are compliant with the connectors you wish to connect.
•Before installing the devices, be sure to turn off the devices and your computer. Unplug the power
cord from the power outlet to prevent damage to the devices.
•After installing the device and before turning on the computer, make sure the device cable has
been securely attached to the connector on the motherboard.
1) ATX_12V
2) ATX
3) CPU_FAN
4) SYS_FAN
5) BAT
6) SATA3 0
7) SATA2 1/2/3/4/5
8) F_PANEL
9) F_AUDIO
10) F_USB30
11) F_USB1/F_USB2
12) COM
13) LPT
14) CLR_CMOS
14
7
7
1113129
5
3

- 15 -
DEBUG
PORT
G.QBOFM
131
2412
ATX
ATX_12V:
1/2) ATX_12V/ATX (2x2 12V Power Connector and 2x12 Main Power Connector)
With the use of the power connector, the power supply can supply enough stable power to all the components
onthemotherboard.Beforeconnectingthepowerconnector,rstmakesurethepowersupplyisturned
off and all devices are properly installed. The power connector possesses a foolproof design. Connect the
power supply cable to the power connector in the correct orientation.
The 12V power connector mainly supplies power to the CPU. If the 12V power connector is not connected,
the computer will not start.
To meet expansion requirements, it is recommended that a power supply that can withstand high
power consumption be used (500W or greater). If a power supply is used that does not provide the
required power, the result can lead to an unstable or unbootable system.
Pin No. Denition
1 GND
2 GND
3 +12V
4 +12V
ATX:
Pin No. Denition Pin No. Denition
1 3.3V 13 3.3V
2 3.3V 14 -12V
3 GND 15 GND
4 +5V 16 PS_ON (soft On/Off)
5 GND 17 GND
6 +5V 18 GND
7 GND 19 GND
8 Power Good 20 -5V
9 5VSB (stand by +5V) 21 +5V
10 +12V 22 +5V
11 +12V (Only for 2x12-pin
ATX)
23 +5V (Only for 2x12-pin ATX)
12 3.3V (Only for 2x12-pin
ATX)
24 GND (Only for 2x12-pin
ATX)
ATX_12V
1 3
24

- 16 -
3/4) CPU_FAN/SYS_FAN (Fan Headers)
All fan headers on this motherboard are 4-pin. Most fan headers possess a foolproof insertion design.
When connecting a fan cable, be sure to connect it in the correct orientation (the black connector wire is
the ground wire). The speed control function requires the use of a fan with fan speed control design. For
optimum heat dissipation, it is recommended that a system fan be installed inside the chassis.
•Be sure to connect fan cables to the fan headers to prevent your CPU and system from
overheating. Overheating may result in damage to the CPU or the system may hang.
•Thesefanheadersarenotcongurationjumperblocks.Donotplaceajumpercapontheheaders.
CPU_FAN/SYS_FAN:
Pin No. Denition
1 GND
2 +12V
3 Sense
4 Speed Control
CPU_FAN SYS_FAN
DEBUG
PORT
G.QBOFM
1
DEBUG
PORT
G.QBOFM
1
5) BAT (Battery)
 Thebatteryprovidespowertokeepthevalues(suchasBIOScongurations,date,andtimeinformation)
in the CMOS when the computer is turned off. Replace the battery when the battery voltage drops to a low
level, or the CMOS values may not be accurate or may be lost.
You may clear the CMOS values by removing the battery:
1. Turn off your computer and unplug the power cord.
2. Gently remove the battery from the battery holder and wait for one minute.
(Or use a metal object like a screwdriver to touch the positive and negative
terminals of the battery holder, making them short for 5 seconds.)
3. Replace the battery.
4. Plug in the power cord and restart your computer.
•Always turn off your computer and unplug the power cord before replacing the battery.
•Replace the battery with an equivalent one. Danger of explosion if the battery is replaced with
an incorrect model.
•Contact the place of purchase or local dealer if you are not able to replace the battery by yourself
or uncertain about the battery model.
•When installing the battery, note the orientation of the positive side (+) and the negative side (-)
of the battery (the positive side should face up).
•Used batteries must be handled in accordance with local environmental regulations.

- 17 -
7) SATA2 1/2/3/4/5 (SATA 3Gb/s Connectors, Controlled by Intel B75 Chipset)
The SATA connectors conform to SATA 3Gb/s standard and are compatible with SATA 1.5Gb/s standard.
Each SATA connector supports a single SATA device.
Pin No. Denition
1 GND
2 TXP
3 TXN
4 GND
5 RXN
6 RXP
7 GND
Pin No. Denition
1 GND
2 TXP
3 TXN
4 GND
5 RXN
6 RXP
7 GND
71
DEBUG
PORT
G.QBOFM
17
DEBUG
PORT
G.QBOFM
SATA2
6) SATA3 0 (SATA 6Gb/s Connector, Controlled by Intel B75 Chipset)
The SATA connector conforms to SATA 6Gb/s standard and are compatible with SATA 3Gb/s and SATA
1.5Gb/s standard. Each SATA connector supports a single SATA device.
SATA2 2
SATA3 0
DEBUG
PORT
G.QBOFM
1
7
4 3
5
DEBUG
PORT
G.QBOFM
1
7
71
DEBUG
PORT
G.QBOFM
DEBUG
PORT
G.QBOFM
1
7
SATA2 1

- 18 -
The front panel design may differ by chassis. A front panel module mainly consists of power switch,
reset switch, power LED, hard drive activity LED, speaker and etc. When connecting your chassis
front panel module to this header, make sure the wire assignments and the pin assignments are
matched correctly.
8) F_PANEL (Front Panel Header)
Connect the power switch, reset switch, speaker, chassis intrusion switch/sensor and system status indicator
on the chassis to this header according to the pin assignments below. Note the positive and negative pins
before connecting the cables.
•PW (Power Switch):
 Connectstothepowerswitchonthechassisfrontpanel.Youmaycongurethewaytoturnoffyour
system using the power switch (refer to Chapter 2, "BIOS Setup," "Power Management," for more
information).
•Speaker (Speaker):
Connects to the speaker on the chassis front panel. The system reports system startup status by issuing
a beep code. One single short beep will be heard if no problem is detected at system startup.
•HD (Hard Drive Activity LED):
Connects to the hard drive activity LED on the chassis front panel. The LED is on when the hard drive
is reading or writing data.
•RES (Reset Switch):
Connects to the reset switch on the chassis front panel. Press the reset switch to restart the computer
if the computer freezes and fails to perform a normal restart.
•CI (Chassis Intrusion Header):
Connects to the chassis intrusion switch/sensor on the chassis that can detect if the chassis cover has
been removed. This function requires a chassis with a chassis intrusion switch/sensor.
•MSG/PWR (Message/Power/Sleep LED):
System Status LED
S0 On
S3/S4/S5 Off
Connects to the power status indicator on the chassis front panel. The LED
is on when the system is operating. The LED is off when the system is in S3/
S4 sleep state or powered off (S5).
Power LED
12
1920
CI-
CI+
PWR-
PWR+
MSG-
PW-
SPEAK+
SPEAK-
MSG+
PW+
Message/Power/
Sleep LED
HD-RES+
HD+
RES-
Hard Drive
Activity LED
Reset
Switch
Chassis Intrusion
Header
Power Switch
Speaker
F_USB30 F_AUDIO(H)
DB_PORT
F_PANEL(NH) F_PANEL
(H61M-D2) ACPI_CPT (GA-IVB)
BIOS_PH (GA-IVB)
SMB_CPT (GA-IVB)
CLR_CMOS CI DIS_ME GP15_CPT (GA-IVB) XDP_CPU XDP_PCH (GA-IVB)
TPM w/housing
Voltage measurement module(X58A-OC)
PCIe power connector (SATA)(X58A-OC)
DIP
123
DIP
123
DIP
123
DIP
123
1
1
1
1
BIOS Switcher (X58A-OC)
PWM Switch (X58A-OC)
M_SATA
PWM Switch (SW1)(X79-UD7)
DIP
1 2 3 4 5
Voltage measurement points(G1.Sniper 3) BIOS Switcher (SW4)

- 19 -
9) F_AUDIO (Front Panel Audio Header)
 ThefrontpanelaudioheadersupportsIntelHighDenitionaudio(HD)andAC'97audio.Youmayconnect
your chassis front panel audio module to this header. Make sure the wire assignments of the module
connector match the pin assignments of the motherboard header. Incorrect connection between the module
connector and the motherboard header will make the device unable to work or even damage it.
For HD Front Panel Audio: For AC'97 Front Panel Audio:
•The front panel audio header supports HD audio by default.
•Audio signals will be present on both of the front and back panel audio connections simultaneously.
•Some chassis provide a front panel audio module that has separated connectors on each wire
instead of a single plug. For information about connecting the front panel audio module that has
different wire assignments, please contact the chassis manufacturer.
Pin No. Denition
1 MIC2_L
2 GND
3 MIC2_R
4 -ACZ_DET
5 LINE2_R
6 GND
7 FAUDIO_JD
8 No Pin
9 LINE2_L
10 GND
Pin No. Denition
1 MIC
2 GND
3 MIC Power
4 NC
5 Line Out (R)
6 NC
7 NC
8 No Pin
9 Line Out (L)
10 NC
1
2
9
10
F_USB30 F_AUDIO(H)
DB_PORT
F_PANEL(NH) F_PANEL
(H61M-D2)
ACPI_CPT
(GA-IVB)
BIOS_PH
(GA-IVB)
SMB_CPT
(GA-IVB)
CLR_CMOS
CI
DIS_ME
GP15_CPT
(GA-IVB)
XDP_CPU
XDP_PCH
(GA-IVB)
TPM
w/housing
Voltage measurement module(X58A-OC)
PCIe power connector (SATA)(X58A-OC)
DIP
123
DIP
123
DIP
123
DIP
123
1
1
1
1
BIOS Switcher (X58A-OC)
PWM Switch (X58A-OC)
M_SATA
PWM Switch (SW1)(X79-UD7)
DIP
1 2 3 4 5
Voltage measurement points(G1.Sniper 3) BIOS Switcher (SW4)
10
11
20
1
10) F_USB30 (USB 3.0/2.0 Header)
 TheheaderconformstoUSB3.0/2.0specicationandcanprovidetwoUSBports.Forpurchasingthe
optional 3.5" front panel that provides two USB 3.0/2.0 ports, please contact the local dealer.
Pin No. Denition Pin No. Denition
1 VBUS 11 D2+
2 SSRX1- 12 D2-
3 SSRX1+ 13 GND
4 GND 14 SSTX2+
5 SSTX1- 15 SSTX2-
6 SSTX1+ 16 GND
7 GND 17 SSRX2+
8 D1- 18 SSRX2-
9 D1+ 19 VBUS
10 NC 20 No Pin

- 20 -
11) F_USB1/F_USB2 (USB 2.0/1.1 Headers)
 TheheadersconformtoUSB2.0/1.1specication.EachUSBheadercanprovidetwoUSBportsviaan
optional USB bracket. For purchasing the optional USB bracket, please contact the local dealer.
•Do not plug the IEEE 1394 bracket (2x5-pin) cable into the USB header.
•Prior to installing the USB bracket, be sure to turn off your computer and unplug the power cord
from the power outlet to prevent damage to the USB bracket.
10
9
2
1
Pin No. Denition
1 Power (5V)
2 Power (5V)
3 USB DX-
4 USB DY-
5 USB DX+
6 USB DY+
7 GND
8 GND
9 No Pin
10 NC
12) COM (Serial Port Header)
The COM header can provide one serial port via an optional COM port cable. For purchasing the optional
COM port cable, please contact the local dealer.
Pin No. Denition
1 NDCD-
2 NSIN
3 NSOUT
4 NDTR-
5 GND
6 NDSR-
7 NRTS-
8 NCTS-
9 NRI-
10 No Pin
10
9
2
1