GA-B85-HD3

User's Manual
Rev. 2001
12ME-B85HD3-2001R
 Motherboard
GA-B85-HD3

Motherboard
GA-B85-HD3

Oct. 17, 2013

Oct. 17, 2013

Copyright
© 2013 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.
„„ In order to assist in the use of this product, 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:
 Table of Contents

GA-B85-HD3 Motherboard Layout...................................................................................4

GA-B85-HD3 Motherboard Block Diagram.......................................................................5

Chapter 1 Hardware Installation......................................................................................6

1-1 Installation Precautions..................................................................................... 6
1-2 Product Specifications....................................................................................... 7
1-3 Installing the CPU............................................................................................. 9
1-4 Installing the Memory...................................................................................... 10
1-5 Installing an Expansion Card.......................................................................... 11
1-6 Back Panel Connectors................................................................................... 11
1-7 Internal Connectors......................................................................................... 13

Chapter 2 BIOS Setup...................................................................................................19

2-1 Startup Screen................................................................................................ 20
2-2 M.I.T................................................................................................................ 20
2-3 System Information......................................................................................... 25
2-4 BIOS Features................................................................................................ 26
2-5 Peripherals...................................................................................................... 29
2-6 Power Management........................................................................................ 31
2-7 Save & Exit...................................................................................................... 33

Chapter 3 Appendix.......................................................................................................34
Drivers Installation...................................................................................................... 34

Regulatory Statements............................................................................................... 35
Contact Us................................................................................................................. 36

-3-
GA-B85-HD3 Motherboard Layout

KB_MS_USB CPU_FAN

ATX_12V_2X4
VGA
DVI

LGA1150
ATX
HDMI

R_USB30

USB_LAN

AUDIO

F_USB30
DDR3_4
SYS_FAN2

BAT
SYS_FAN1

Realtek ®
DDR3_3
DDR3_1
DDR3_2

GA-B85-HD3

SYS_FAN3
GbE LAN
PCIEX16

PCIEX1_1
CODEC
Intel® B85
PCIEX1_2
PCIe to PCI
Bridge
PCIEX4 SATA3 1 0
3 2
SATA2 5 4
PCI1
Super I/O

M_BIOS
®
iTE

PCI2 B_BIOS
CLR_CMOS
SPDIF_IN

F_AUDIO COMA F_PANEL F_USB1

SPDIF_O LPT F_USB2

Box Contents
55 GA-B85-HD3 motherboard
55 Motherboard driver disk 55 Two SATA cables
55 User's Manual 55 I/O Shield

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.

-4-
GA-B85-HD3 Motherboard Block Diagram
1 PCI Express x16

CPU CLK+/- (100 MHz)

DVI-D
LGA1150
PCIe CLK HDMI CPU DDR3 1600/1333 MHz
(100 MHz) Dual Channel Memory

x16 DMI 2.0 FDI

PCI Express Bus

D-Sub
LAN
RJ45 Dual BIOS

PCIe CLK Realtek® 2 SATA 3Gb/s

(100 MHz) GbE LAN
Intel® B85 4 SATA 6Gb/s
x1
PCI Express Bus
4 USB 3.0/2.0
x1 x1 x4 x1

PCIe to PCI
Bridge 8 USB 2.0/1.1

PCI Bus
2 PCI Express x1 LPT
LPC Bus
iTE®
1 PCI Express x4 Super COM
I/O

CODEC
PS/2 KB/Mouse
Rear Speaker Out

Side Speaker Out

Line Out

S/PDIF In
S/PDIF Out
Center/Subwoofer Speaker Out

MIC

Line In

2 PCI

PCI CLK
(33 MHz)

For detailed product information/limitation(s), refer to "1-2 Product Specifications."

-5-
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 first 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 certified computer technician.

-6-
1-2 Product Specifications
CPU ŠŠ Support for Intel® Core™ i7 processors/Intel® Core™ i5 processors/
Intel® Core™ i3 processors/Intel® Pentium® processors/In-
tel® Celeron® processors in the LGA1150 package
(Go to GIGABYTE's website for the latest CPU support list.)
ŠŠ L3 cache varies with CPU
Chipset ŠŠ Intel® B85 Express Chipset
Memory ŠŠ 4 x 1.5V DDR3 DIMM sockets supporting up to 32 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.
ŠŠ Dual channel memory architecture
ŠŠ Support for DDR3 1600/1333 MHz memory modules
ŠŠ Support for non-ECC memory modules
ŠŠ Support for Extreme Memory Profile (XMP) memory modules
(Go to GIGABYTE's website for the latest supported memory speeds and memory
modules.)
Onboard ŠŠ Integrated Graphics Processor:
Graphics - 1 x D-Sub port, supporting a maximum resolution of 1920x1200
- 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 4096x2160
* Support for HDMI 1.4a version.
- Maximum shared memory of 1 GB
Audio ŠŠ Realtek® ALC892 codec
ŠŠ High Definition Audio
ŠŠ 2/4/5.1/7.1-channel
ŠŠ Support for S/PDIF In
ŠŠ Support for S/PDIF Out
LAN ŠŠ Realtek® GbE LAN chip (10/100/1000 Mbit)
Expansion Slots ŠŠ 1 x PCI Express x16 slot, running at x16
(The PCI Express x16 slot conforms to PCI Express 3.0 standard.)
* For optimum performance, if only one PCI Express graphics card is to be installed,
be sure to install it in the PCIEX16 slot.
ŠŠ 1 x PCI Express x16 slot, running at x4 (PCIEX4)
ŠŠ 2 x PCI Express x1 slots
(The PCIEX4 and PCIEX1 slots conform to PCI Express 2.0 standard.)
ŠŠ 2 x PCI slots
Multi-Graphics
ŠŠ Support for AMD CrossFire™ technology
Technology
Storage Interface ŠŠ Chipset:
- 4 x SATA 6Gb/s connectors (SATA3 0~SATA3 3)
- 2 x SATA 3Gb/s connectors (SATA2 4~SATA2 5)

-7-
USB ŠŠ Chipset:
- 4 x USB 3.0/2.0 ports (2 ports on the back panel, 2 ports available through
the internal USB header)
- 8 x USB 2.0/1.1 ports (4 ports on the back panel, 4 ports available through
the internal USB headers)
Internal ŠŠ 1 x 24-pin ATX main power connector
Connectors ŠŠ 1 x 8-pin ATX 12V power connector
ŠŠ 4 x SATA 6Gb/s connectors
ŠŠ 2 x SATA 3Gb/s connectors
ŠŠ 1 x CPU fan header
ŠŠ 3 x system fan headers
ŠŠ 1 x front panel header
ŠŠ 1 x front panel audio header
ŠŠ 1 x S/PDIF Out header
ŠŠ 1 x S/PDIF In header
ŠŠ 1 x USB 3.0/2.0 header
ŠŠ 2 x USB 2.0/1.1 headers
ŠŠ 1 x serial port header
ŠŠ 1 x parallel port header
ŠŠ 1 x Clear CMOS jumper
Back Panel ŠŠ 1 x PS/2 keyboard/mouse port
Connectors ŠŠ 1 x D-Sub port
ŠŠ 1 x DVI-D port
ŠŠ 1 x HDMI port
ŠŠ 2 x USB 3.0/2.0 ports
ŠŠ 4 x USB 2.0/1.1 ports
ŠŠ 1 x RJ-45 port
ŠŠ 6 x audio jacks (Center/Subwoofer Speaker Out, Rear Speaker Out, Side Speaker
Out, Line In, Line Out, Mic In)
I/O Controller ŠŠ iTE® I/O Controller Chip
Hardware ŠŠ System voltage detection
Monitor ŠŠ CPU/System temperature detection
ŠŠ CPU/System fan speed detection
ŠŠ CPU/System overheating warning
ŠŠ CPU/System fan fail warning
ŠŠ CPU/System fan speed control
* Whether the fan speed control function is supported will depend on the cooler you
install.
BIOS ŠŠ 2 x 64 Mbit flash
ŠŠ Use of licensed AMI EFI BIOS
ŠŠ Support for DualBIOS™
ŠŠ PnP 1.0a, DMI 2.0, SM BIOS 2.6, ACPI 2.0a
Unique Features ŠŠ Support for Q-Flash
ŠŠ Support for Xpress Install

-8-
 Unique Features ŠŠ Support for APP Center
* Available applications in APP Center may differ by motherboard model. Supported
functions of each application may also differ depending on motherboard
specifications.
- @BIOS
- EasyTune
- EZ Setup
- USB Blocker
- Fast Boot
- Smart TimeLock
- Smart Recovery 2
ŠŠ Support for ON/OFF Charge
Bundled ŠŠ Norton Internet Security (OEM version)
Software ŠŠ Intel® Rapid Start Technology
ŠŠ Intel® Smart Connect Technology
ŠŠ Intel® Small Business Advantage
Operating ŠŠ Support for Windows 8.1/8/7
System * If you plan to install Windows 8.1, please download the latest drivers from
GIGABYTE's website.

Form Factor ŠŠ ATX Form Factor; 30.5cm x 19cm

* GIGABYTE reserves the right to make any changes to the product specifications 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.

1-3 Installing 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 specifications. It is not recommended
that the system bus frequency be set beyond hardware specifications since it does not meet the
standard requirements for the peripherals. If you wish to set the frequency beyond the standard
specifications, please do so according to your hardware specifications including the CPU, graphics
card, memory, hard drive, etc.

-9-
Installing the CPU
Locate the alignment keys on the motherboard CPU socket and the notches on the CPU.
LGA1150 CPU
LGA1150 CPU Socket

Notch Notch
Alignment Alignment
Key Key

Triangle Pin One Marking on the CPU

Pin One Corner of the CPU Socket

Do not remove the CPU socket cover before inserting the CPU. It may pop off from the load plate
automatically during the process of re-engaging the lever after you insert the CPU.

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 direction.
If you are unable to insert the memory, switch the direction.

Dual Channel Memory Configuration

This motherboard provides four DDR3 memory sockets and supports Dual Channel Technology. After the
memory is installed, the BIOS will automatically detect the specifications 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 A: DDR3_2, DDR3_4
Channel B: DDR3_1, DDR3_3

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 and installed in the same colored DDR3
sockets. 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.

- 10 -
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.

1-6 Back Panel Connectors

USB 2.0/1.1 Port

The USB port supports the USB 2.0/1.1 specification. Use this port for USB devices such as a USB
keyboard/mouse, USB printer, USB flash 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 and supports a maximum resolution of 1920x1200
(the actual resolutions supported depend on the monitor being used). Connect a monitor that supports
D-Sub connection to this port.
DVI-D Port (Note)
The DVI-D port conforms to the DVI-D specification 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
The HDMI port is HDCP compliant and supports Dolby True HD 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 monitor. The
maximum supported resolution is 4096x2160, but the actual resolutions supported are dependent on the
monitor being used.
Triple-Display Configurations for the Onboard Graphics:
Triple-display configurations are supported after you install motherboard drivers in OS. Only dual-display
configurations are supported during the BIOS Setup or POST process.

USB 3.0/2.0 Port

The USB 3.0 port supports the USB 3.0 specification and is compatible to the USB 2.0/1.1 specification.
Use this port for USB devices such as a USB keyboard/mouse, USB printer, USB flash drive and etc.

(Note) The DVI-D port does not support D-Sub connection by adapter.

- 11 -
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.
Connection/
Speed LED Activity LED Connection/Speed LED: Activity LED:
State Description State Description
Orange 1 Gbps data rate Blinking Data transmission or receiving is occurring
Green 100 Mbps data rate Off No data transmission or receiving is occurring
LAN Port Off 10 Mbps data rate

Center/Subwoofer Speaker Out Jack (Orange)

Use this audio jack to connect center/subwoofer speakers in a 5.1/7.1-channel audio configuration.
Rear Speaker Out Jack (Black)
This jack can be used to connect front speakers in a 4/5.1/7.1-channel audio configuration.
Side Speaker Out Jack (Gray)
Use this audio jack to connect side speakers in a 7.1-channel audio configuration.
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 configuration.
Mic In Jack (Pink)
The default Mic in jack. Microphones must be connected to this jack.

The audio jacks can be reconfigured to perform different functions via the audio software (supported
functions for each jack may vary based on hardware specification). Only microphones still MUST
be connected to the default Mic in jack.

•• When removing the cable connected to a back panel connector, first 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.

- 12 -
1-7 Internal Connectors

1 3

7
4
13

5
6
10

9 11 15 16 12 8 14

1) ATX_12V_2X4 9) F_AUDIO
2) ATX 10) SPDIF_IN
3) CPU_FAN 11) SPDIF_O
4) SYS_FAN1/2/3 12) CLR_CMOS
5) SATA3 0/1/2/3 13) F_USB30
6) SATA2 4/5 14) F_USB1/F_USB2
7) BAT 15) COMA
8) F_PANEL 16) LPT

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.

- 13 -
1/2) ATX_12V_2X4/ATX (2x4 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, first 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.
ATX_12V_2X4:
5 8 Pin No. Definition Pin No. Definition
1 4 1 GND (Only for 2x4-pin 12V) 5 +12V (Only for 2x4-pin 12V)
2 GND (Only for 2x4-pin 12V) 6 +12V (Only for 2x4-pin 12V)
ATX_12V_2X4
3 GND 7 +12V
4 GND 8 +12V

ATX:

12 24 Pin No. Definition Pin No. Definition

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 23 +5V (Only for 2x12-pin ATX)
1 13 ATX)
12 3.3V (Only for 2x12-pin 24 GND (Only for 2x12-pin ATX)
ATX)
ATX

3/4) CPU_FAN/SYS_FAN1/2/3 (Fan Headers)

The motherboard has a 4-pin CPU fan header (CPU_FAN), two 4-pin (SYS_FAN1~SYS_FAN2) and a 3-pin
(SYS_FAN3) system fan headers. 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.
CPU_FAN: SYS_FAN1/2:
Pin No. Definition Pin No. Definition
1 GND 1 1 GND
1
2 +12V 2 +12V/Speed Control
CPU_FAN 3 Sense 3 Sense
SYS_FAN1/2
4 Speed Control 4 VCC

- 14 -
 SYS_FAN3
Pin No. Definition
1
1 GND
DEBUG DEBUG
SYS_FAN3
2 +12V
PORT PORT
3 N/A
DEBUG DEBUG
PORT PORT
•• 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 configuration jumper blocks. Do not place a jumper cap on the headers.

5) SATA3 0/1/2/3 (SATA 6Gb/s Connectors)

The SATA connectors conform to SATA 6Gb/s standard and are compatible with SATA 3Gb/s and SATA
1.5Gb/s standard. Each SATA connector
DEBUG supports
DEBUG
a single SATA device.
SATA3 PORT PORT
1 0
Pin No. Definition Pin No. Definition
3 2
1 GND 5 RXN
1 7 2 TXP 6 RXP
3 TXN 7 GND
1 7 4 GND

6) SATA2 4/5 (SATA 3Gb/s Connectors)

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.
SATA2 Pin No. Definition Pin No. Definition
5 4 1 GND 5 RXN
1 7 2 TXP 6 RXP
3 TXN 7 GND
4 GND

7) BAT (Battery)
The battery provides power to keep the values (such as BIOS configurations, 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.

- 15 -
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.
Power LED Power Switch Speaker
PLED+

PW+

SPEAK+

SPEAK-
PLED-

PW-

2 20
1 19
HD-

CI+

PWR_LED+
RES+

PWR_LED-
PWR_LED-
HD+

CI-
RES-

Hard Drive Reset Power LED

Activity LED Switch
Chassis Intrusion
Header

•• PLED/PWR_LED (Power LED, Yellow/Purple):

System Status LED Connects to the power status indicator on the chassis front panel. The LED is on
S0 On when the system is operating. The LED is off when the system is in S3/S4 sleep
S3/S4/S5 Off state or powered off (S5).
• PW (Power Switch, Red):
Connects to the power switch on the chassis front panel. You may configure the way to turn off your system
using the power switch (refer to Chapter 2, "BIOS Setup," "Power Management," for more information).
• SPEAK (Speaker, Orange):
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. If a problem is
detected, the BIOS may issue beeps in different patterns to indicate the problem.
• HD (Hard Drive Activity LED, Blue):
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, Green):
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, Gray):
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.

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.
- 16 -
 9) F_AUDIO (Front Panel Audio Header)
The front panel audio header supports Intel High Definition 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:
Pin No. Definition Pin No. Definition
9 1
1 MIC2_L 1 MIC
S S
F_ U F_ 2 GND 2 GND F_
3 MIC2_R 3 MIC Power
3 2

10 2 4 -ACZ_DET 4 NC
5 LINE2_R 5 Line Out (R)
6 GND 6 NC
7 FAUDIO_JD 7 NC
8 No Pin 8 No Pin
9 LINE2_L 9 Line Out (L)
10 GND 10 NC
•• The front panel audio header supports HD audio by default.
B SS
B_ •• 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
1

single plug. For information about connecting the front panel audio module that has different wire assignments,
_S
1

please contact the chassis manufacturer.

1

_ B S_
10) SPDIF_IN (S/PDIF In Header) B B
This header supports digital S/PDIF In and can connect to an audio device that supports digital audio out via
S
an optional S/PDIF In cable. For purchasing the optional S/PDIF In cable, please contact the local dealer.
1 2 3
1 2 3

Pin No. Definition

1 2 3

1 2 3 1 1 Power S B_
B
S
2 SPDIFI
3 GND

11) SPDIF_O (S/PDIF Out Header)

This header supports digital S/PDIF Out and connects a S/PDIF digital audio cable _ S (provided by expansion
cards) for digital audio output from your motherboard to certain expansion cards like graphics cards and
sound cards. For example, some graphics cards may require you to use a S/PDIF S_ digital audio cable for
_
digital audio output from your motherboard to your graphics card if you wish toBconnect an HDMI display
to the graphics card and have digital audio output from the HDMI display at the same time.
For information about connecting the S/PDIF digital audio cable, carefully read the manual for your expansion
card. _ U
B SS S _
Pin No. Definition B

1 SPDIFO
1 2 GND

- 17 -
 12) CLR_CMOS (Clear CMOS Jumper)
Use this jumper to clear the BIOS configuration and reset the CMOS values to factory defaults. To clear
the CMOS values, use a metal object like a screwdriver to touch the two pins for a few seconds.

Open: Normal

Short: Clear CMOS Values

•• Always turn off your computer and unplug the power cord from the power outlet before clearing the CMOS values.
•• After system restart, go to BIOS Setup to load factory defaults (select Load Optimized Defaults) or manually
configure the BIOS settings (refer to Chapter 2, "BIOS Setup," for BIOS configurations).

13) F_USB30 (USB 3.0/2.0 Header)

G.QBOFM
The header conforms to USB 3.0/2.0 specification and can provide two USB ports. For purchasing the
F_USB30

optional 3.5" front panel that provides two USB 3.0/2.0 ports, please contact the local dealer.

20 1
Pin No. Definition Pin No. Definition Pin No. Definition
1 VBUS 8 D1- 15 SSTX2-
2 SSRX1- 9 D1+ 16 GND
3 SSRX1+ 10 NC 17 SSRX2+
4 GND 11 D2+ 18 SSRX2-
5 SSTX1- 12 D2- 19 VBUS
11 10 6 SSTX1+ 13 GND 20 No Pin
7 GND 14 SSTX2+
F_ U
B_

14) F_USB1/F_USB2 (USB 2.0/1.1 Headers)

The headers conform to USB 2.0/1.1 specification. Each USB header can provide two USB ports via an
optional USB bracket. For purchasing the optional USB bracket, please contact the local dealer.

Pin No. Definition Pin No. Definition

1 Power (5V) 6 USB DY+
9 1 2 Power (5V) 7 GND
B SS

10 2 3 USB DX- 8 GND

4 USB DY- 9 No Pin
1

1
5 USB DX+ 10 NC

•• 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.
F_

- 18 -
15) COMA (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. Definition Pin No. Definition

1 NDCD- 6 NDSR-
2 NSIN 7 NRTS-
9 1
10 2 3 NSOUT 8 NCTS-
4 NDTR- 9 NRI-
5 GND 10 No Pin

16) LPT (Parallel Port Header)

The LPT header can provide one parallel port via an optional LPT port cable. For purchasing the optional
LPT port cable, please contact the local dealer.
Pin No. Definition Pin No. Definition Pin No. Definition
1 STB- 10 GND 19 ACK-
2 AFD- 11 PD4 20 GND
25 1 3 12 21
PD0 GND BUSY
4 ERR- 13 PD5 22 GND
5 PD1 14 GND 23 PE
26 2
6 INIT- 15 PD6 24 No Pin
7 PD2 16 GND 25 SLCT
8 SLIN- 17 PD7 26 GND
9 PD3 18 GND

Chapter 2 BIOS Setup

BIOS (Basic Input and Output System) records hardware parameters of the system in the CMOS on the
motherboard. Its major functions include conducting the Power-On Self-Test (POST) during system startup,
saving system parameters and loading operating system, etc. BIOS includes a BIOS Setup program that allows
the user to modify basic system configuration settings or to activate certain system features.
When the power is turned off, the battery on the motherboard supplies the necessary power to the CMOS to
keep the configuration values in the CMOS.
To access the BIOS Setup program, press the <Delete> key during the POST when the power is turned on.
To upgrade the BIOS, use either the GIGABYTE Q-Flash or @BIOS utility.
•• Q-Flash allows the user to quickly and easily upgrade or back up BIOS without entering the operating system.
•• @BIOS is a Windows-based utility that searches and downloads the latest version of BIOS from the Internet
and updates the BIOS.

•• Because BIOS flashing is potentially risky, if you do not encounter problems using the current version of BIOS,
it is recommended that you not flash the BIOS. To flash the BIOS, do it with caution. Inadequate BIOS flashing
may result in system malfunction.
•• It is recommended that you not alter the default settings (unless you need to) to prevent system instability or other
unexpected results. Inadequately altering the settings may result in system's failure to boot. If this occurs, try to
clear the CMOS values and reset the board to default values. (Refer to the "Load Optimized Defaults" section in
this chapter or introductions of the battery/clear CMOS jumper in Chapter 1 for how to clear the CMOS values.)

- 19 -
2-1 Startup Screen
The following startup Logo screen will appear when the computer boots.
(Sample BIOS Version: E3)

Function Keys
On the main menu of the BIOS Setup program, press arrow keys to move among the items and press <Enter>
to accept or enter a sub-menu. Or you can use your mouse to select the item you want.
•• When the system is not stable as usual, select the Load Optimized Defaults item to set your system to its defaults.
•• The BIOS Setup menus described in this chapter are for reference only and may differ by BIOS version.

2-2 M.I.T.

This section provides information on the BIOS version, CPU base clock, CPU frequency, memory frequency,
total memory size, CPU temperature and Vcore.
Whether the system will work stably with the overclock/overvoltage settings you made is dependent on your overall
system configurations. Incorrectly doing overclock/overvoltage may result in damage to CPU, chipset, or memory
and reduce the useful life of these components. This page is for advanced users only and we recommend you not to
alter the default settings to prevent system instability or other unexpected results. (Inadequately altering the settings
may result in system's failure to boot. If this occurs, clear the CMOS values and reset the board to default values.)

- 20 -
`` M.I.T. Current Status
This screen provides information on CPU/memory frequencies/parameters.

`` Advanced Frequency Settings

&& Performance Upgrade (Note)
Provides you with five different overclocking configurations. Options are: 20% Upgrade, 40% Upgrade,
60% Upgrade, 80% Upgrade, 100% Upgrade. (Default: Auto)
&& Processor Graphics Clock
Allows you to set the onboard graphics clock. The adjustable range is from 400 MHz to 4000 MHz. (Default:
Auto)

&& CPU Upgrade (Note)

Allows you to set the CPU frequency. Options may vary depending on the CPU being used. (Default: Auto)
&& CPU Clock Ratio
Allows you to alter the clock ratio for the installed CPU. The adjustable range is dependent on the CPU
being installed.
&& CPU Frequency
Displays the current operating CPU frequency.

`` Advanced CPU Core Features

&& CPU Clock Ratio, CPU Frequency
The settings above are synchronous to those under the same items on the Advanced Frequency Settings
menu.
&& CPU PLL Selection
Allows you to set the CPU PLL. Auto lets the BIOS automatically configure this setting. (Default: Auto)
&& Filter PLL Level
Allows you to set the Filter PLL. Auto lets the BIOS automatically configure this setting. (Default: Auto)
&& Uncore Ratio
Allows you to set the CPU Uncore ratio. The adjustable range is dependent on the CPU being used.
&& Uncore Frequency
Displays the current CPU Uncore frequency.
&& Intel(R) Turbo Boost Technology (Note)
Allows you to determine whether to enable the Intel CPU Turbo Boost technology. Auto lets the BIOS
automatically configure this setting. (Default: Auto)
&& Turbo Ratio (1-Core Active~4-Core Active) (Note)
Allows you to set the CPU Turbo ratios for different number of active cores. Auto sets the CPU Turbo ratios
according to the CPU specifications. (Default: Auto)
&& Turbo Power Limit (Watts)
Allows you to set a power limit for CPU Turbo mode. When the CPU power consumption exceeds the
specified power limit, the CPU will automatically reduce the core frequency in order to reduce the power.
Auto sets the power limit according to the CPU specifications. (Default: Auto)
&& Core Current Limit (Amps)
Allows you to set a current limit for CPU Turbo mode. When the CPU current exceeds the specified current
limit, the CPU will automatically reduce the core frequency in order to reduce the current. Auto sets the
power limit according to the CPU specifications. (Default: Auto)

(Note) This item is present only when you install a CPU that supports this feature. For more information about
Intel® CPUs' unique features, please visit Intel's website.

- 21 -
&& No. of CPU Cores Enabled (Note 1)
Allows you to select the number of CPU cores to enable in an Intel® multi-core CPU (the number of CPU
cores may vary by CPU). Auto lets the BIOS automatically configure this setting. (Default: Auto)
&& Hyper-Threading Technology (Note 1)
Allows you to determine whether to enable multi-threading technology when using an Intel® CPU that
supports this function. This feature only works for operating systems that support multi-processor mode.
Auto lets the BIOS automatically configure this setting. (Default: Auto)
&& CPU Enhanced Halt (C1E) (Note 1)
Enables or disables Intel® CPU Enhanced Halt (C1E) function, a CPU power-saving function in system
halt state. When enabled, the CPU core frequency and voltage will be reduced during system halt state to
decrease power consumption. Auto lets the BIOS automatically configure this setting. (Default: Auto)
&& C3 State Support (Note1)
Allows you to determine whether to let the CPU enter C3 mode in system halt state. When enabled, the
CPU core frequency and voltage will be reduced during system halt state to decrease power consumption.
The C3 state is a more enhanced power-saving state than C1. Auto lets the BIOS automatically configure
this setting. (Default: Auto)
&& C6/C7 State Support (Note 1)
Allows you to determine whether to let the CPU enter C6/C7 mode in system halt state. When enabled, the
CPU core frequency and voltage will be reduced during system halt state to decrease power consumption.
The C6/C7 state is a more enhanced power-saving state than C3. Auto lets the BIOS automatically configure
this setting. (Default: Auto)
&& CPU Thermal Monitor (Note 1)
Enables or disables Intel® Thermal Monitor function, a CPU overheating protection function. When enabled,
the CPU core frequency and voltage will be reduced when the CPU is overheated. Auto lets the BIOS
automatically configure this setting. (Default: Auto)
&& CPU EIST Function (Note 1)
Enables or disables Enhanced Intel® Speed Step Technology (EIST). Depending on CPU loading, Intel
EIST technology can dynamically and effectively lower the CPU voltage and core frequency to decrease
average power consumption and heat production. Auto lets the BIOS automatically configure this setting.
(Default: Auto)

&& Extreme Memory Profile (X.M.P.) (Note 2)

Allows the BIOS to read the SPD data on XMP memory module(s) to enhance memory performance when
enabled.

Disabled Disables this function. (Default)

Profile1 Uses Profile 1 settings.

Profile2 (Note 2)
Uses Profile 2 settings.
&& System Memory Multiplier
Allows you to set the system memory multiplier. Auto sets memory multiplier according to memory SPD
data. (Default: Auto)
&& Memory Frequency (MHz)
The first memory frequency value is the normal operating frequency of the memory being used; the second
is the memory frequency that is automatically adjusted according to the System Memory Multiplier settings.

(Note 1) This item is present only when you install a CPU that supports this feature. For more information about
Intel® CPUs' unique features, please visit Intel's website.
(Note 2) This item is present only when you install a CPU and a memory module that support this feature.

- 22 -
`` Advanced Memory Settings
&& Extreme Memory Profile (X.M.P.) (Note), System Memory Multiplier, Memory
Frequency(MHz)
The settings above are synchronous to those under the same items on the Advanced Frequency Settings
menu.
&& Memory Boot Mode (Note)
Provides memory detection and training methods.

Auto Lets BIOS automatically configure this setting. (Default)

Normal Standard detection and training.

Fast Skip memory detection and training in some specific criteria for faster memory boot.

Coldboot Detect and train memory at every single boot.

&& Memory Enhancement Settings

Provides three different memory performance enhancement settings: Normal (basic performance), Enhanced
Stability, and Enhanced Performance. (Default: Normal)
&& Memory Timing Mode
Manual and Advanced Manual allows the Channel Interleaving, Rank Interleaving, and memory timing
settings below to be configurable. Options are: Auto (default), Manual, Advanced Manual.
&& Profile DDR Voltage
When using a non-XMP memory module or Extreme Memory Profile (X.M.P.) is set to Disabled, this item
will display as 1.50V. When Extreme Memory Profile (X.M.P.) is set to Profile1 or Profile2, this item will
display the value based on the SPD data on the XMP memory.
&& Channel Interleaving
Enables or disables memory channel interleaving. Enabled allows the system to simultaneously access
different channels of the memory to increase memory performance and stability. Auto lets the BIOS
automatically configure this setting. (Default: Auto)
&& Rank Interleaving
Enables or disables memory rank interleaving. Enabled allows the system to simultaneously access different
ranks of the memory to increase memory performance and stability. Auto lets the BIOS automatically
configure this setting. (Default: Auto)

`` Channel A/B Memory Sub Timings

This sub-menu provides memory timing settings for each channel of memory. This sub-menu provides memory
timing settings for each channel of memory. The respective timing setting screens are configurable only when
Memory Timing Mode is set to Manual or Advanced Manual. Note: Your system may become unstable or fail
to boot after you make changes on the memory timings. If this occurs, please reset the board to default values
by loading optimized defaults or clearing the CMOS values.

`` Advanced Voltage Settings

This sub-menu allows you to set CPU, chipset and memory voltages.

`` PC Health Status
&& Reset Case Open Status

Disabled Keeps or clears the record of previous chassis intrusion status. (Default)

Enabled  Clears the record of previous chassis intrusion status and the Case Open field will
show "No" at next boot.

(Note) This item is present only when you install a CPU and a memory module that support this feature.
- 23 -
&& Case Open
Displays the detection status of the chassis intrusion detection device attached to the motherboard CI
header. If the system chassis cover is removed, this field will show "Yes", otherwise it will show "No". To
clear the chassis intrusion status record, set Reset Case Open Status to Enabled, save the settings to
the CMOS, and then restart your system.
&& CPU Vcore/CPU VRIN/DRAM Voltage/+3.3V/+5V/+12V/CPU VAXG
Displays the current system voltages.
&& CPU/System Temperature
Displays current CPU/system temperature.
&& CPU/System Fan Speed
Displays current CPU/system fan speeds.
&& CPU/System Temperature Warning
Sets the warning threshold for CPU/system temperature. When temperature exceeds the threshold, BIOS
will emit warning sound. Options are: Disabled (default), 60oC/140oF, 70oC/158oF, 80oC/176oF, 90oC/194oF.
&& CPU/System Fan Fail Warning
Allows the system to emit warning sound if the fan is not connected or fails. Check the fan condition or
fan connection when this occurs. (Default: Disabled)
&& CPU Fan Speed Control (CPU_FAN Connector)
Allows you to determine whether to enable the fan speed control function and adjust the fan speed.

Normal  Allows the fan to run at different speeds according to the CPU temperature. You can
adjust the fan speed with EasyTune based on your system requirements. (Default)

Silent Allows the fan to run at slow speeds.

Manual Allows you to control the fan speed under the Fan Speed Percentage item.
 Speed
Full Allows the fan to run at full speeds.
&& Fan Speed Percentage
Allows you to control the fan speed. This item is configurable only when CPU Fan Speed Control is set
to Manual. Options are: 0.75 PWM value /oC ~ 2.50 PWM value /oC.
&& 1st System Fan Speed Control (SYS_FAN1 Connector)
Allows you to determine whether to enable the fan speed control function and adjust the fan speed.

Normal Allows the fan to run at different speeds according to the system temperature. You can
adjust the fan speed with EasyTune based on your system requirements. (Default)

Silent Allows the fan to run at slow speeds.

Manual Allows you to control the fan speed under the Fan Speed Percentage item.
 Speed
Full Allows the fan to run at full speeds.
&& Fan Speed Percentage
Allows you to control the fan speed. This item is configurable only when 1st System Fan Speed Control
is set to Manual. Options are: 0.75 PWM value /oC ~ 2.50 PWM value /oC.
&& 2nd/3rd System Fan Speed Control
Allows you to determine whether to enable the fan speed control function and adjust the fan speed.

Normal Allows the fan to run at different speeds according to the system temperature. (Default)

Silent Allows the fan to run at slow speeds.

Manual Allows you to control the fan speed under the Fan Speed Percentage item.
 Speed
Full Allows the fan to run at full speeds.
&& Fan Speed Percentage
Allows you to control the fan speed. This item is configurable only when 2nd/3rd System Fan Speed
Control is set to Manual. Options are: 0.75 PWM value /oC ~ 2.50 PWM value /oC.

- 24 -
`` Miscellaneous Settings
&& PCIe Slot Configuration
Allows you to set the operation mode of the PCI Express slots to Gen 1, Gen 2, or Gen 3. Actual operation
mode is subject to the hardware specification of each slot. For example, the PCI Express x1 slots can
support up to Gen 2 mode only. Auto lets the BIOS automatically configure this setting. (Default: Auto)
&& 3DMark01 Boost
Allows you to determine whether to enhance some legacy benchmark performance. (Default: Disabled)

2-3 System Information

This section provides information on your motherboard model and BIOS version. You can also select the default
language used by the BIOS and manually set the system time.

&& System Language

Selects the default language used by the BIOS.
&& System Date
Sets the system date. The date format is week (read-only), month, date, and year. Use <Enter> to switch
between the Month, Date, and Year fields and use the <Page Up> or <Page Down> key to set the desired
value.
&& System Time
Sets the system time. The time format is hour, minute, and second. For example, 1 p.m. is 13:0:0. Use
<Enter> to switch between the Hour, Minute, and Second fields and use the <Page Up> or <Page Down>
key to set the desired value.
&& Access Level
Displays the current access level depending on the type of password protection used. (If no password is
set, the default will display as Administrator.) The Administrator level allows you to make changes to all
BIOS settings; the User level only allows you to make changes to certain BIOS settings but not all.

- 25 -
2-4 BIOS Features

&& Boot Option Priorities

Specifies the overall boot order from the available devices. For example, you can set hard drive as the
first priority (Boot Option #1) and DVD ROM drive as the second priority (Boot Option #2). The list only
displays the device with the highest priority for a specific type. For example, only hard drive defined as the
first priority on the Hard Drive BBS Priorities submenu will be presented here.
Removable storage devices that support GPT format will be prefixed with "UEFI:" string on the boot device
list. To boot from an operating system that supports GPT partitioning, select the device prefixed with "UEFI:"
string.
Or if you want to install an operating system that supports GPT partitioning such as Windows 7 64-bit, select
the optical drive that contains the Windows 7 64-bit installation disk and is prefixed with "UEFI:" string.
&& Hard Drive/CD/DVD ROM Drive/Floppy Drive/Network Device BBS Priorities
Specifies the boot order for a specific device type, such as hard drives, optical drives, floppy disk drives,
and devices that support Boot from LAN function, etc. Press <Enter> on this item to enter the submenu that
presents the devices of the same type that are connected. This item is present only if at least one device
for this type is installed.
&& Bootup NumLock State
Enables or disables Numlock feature on the numeric keypad of the keyboard after the POST. (Default:
Enabled)
&& Security Option
Specifies whether a password is required every time the system boots, or only when you enter BIOS Setup.
After configuring this item, set the password(s) under the Administrator Password/User Password item.

Setup  A password is only required for entering the BIOS Setup program.

System A password is required for booting the system and for entering the BIOS Setup program.
(Default)
&& Full Screen LOGO Show
Allows you to determine whether to display the GIGABYTE Logo at system startup. Disabled skips the
GIGABYTE Logo when the system starts up. (Default: Enabled)

- 26 -
&& Fast Boot
Enables or disables Fast Boot to shorten the OS boot process. Ultra Fast provides the fastest bootup
speed. (Default: Disabled)
&& VGA Support
Allows you to select which type of operating system to boot.

Auto Enables legacy option ROM only.
 Driver
EFI Enables EFI option ROM. (Default)
This item is configurable only when Fast Boot is set to Enabled or Ultra Fast.
&& USB Support

Disabled All USB devices are disabled before the OS boot process completes.
 Initial
Full All USB devices are functional in the operating system and during the POST.

Partial Initial Part of the USB devices are disabled before the OS boot process completes. (Default)
This item is configurable only when Fast Boot is set to Enabled. This item is disabled when Fast Boot is
set to Ultra Fast.
&& PS2 Devices Support

Disabled All PS/2 devices are disabled before the OS boot process completes.

Enabled All PS/2 devices are functional in the operating system and during the POST. (Default)
This item is configurable only when Fast Boot is set to Enabled. This item is disabled when Fast Boot is
set to Ultra Fast.
&& NetWork Stack Driver Support

Disabled Disables booting from the network. (Default)

Enabled Enables booting from the network.
This item is configurable only when Fast Boot is set to Enabled or Ultra Fast.
&& Next Boot After AC Power Loss

Normal Boot Enables normal bootup upon the return of the AC power. (Default)

Fast Boot Keeps the Fast Boot settings upon the return of the AC power.
This item is configurable only when Fast Boot is set to Enabled or Ultra Fast.
&& Limit CPUID Maximum (Note)
Allows you to determine whether to limit CPUID maximum value. Set this item to Disabled for Windows XP
operating system; set this item to Enabled for legacy operating system such as Windows NT4.0. (Default:
Disabled)
&& Execute Disable Bit (Note)
Enables or disables Intel® Execute Disable Bit function. This function may enhance protection for the
computer, reducing exposure to viruses and malicious buffer overflow attacks when working with its
supporting software and system. (Default: Enabled)
&& Intel Virtualization Technology (Note)
Enables or disables Intel® Virtualization Technology. Virtualization enhanced by Intel® Virtualization
Technology will allow a platform to run multiple operating systems and applications in independent partitions.
With virtualization, one computer system can function as multiple virtual systems. (Default: Enabled)
&& Intel TXT(LT) Support (Note)
Enables or disables Intel® Trusted Execution Technology (Intel® TXT). Intel® Trusted Execution Technology
provides a hardware-based security foundation. (Default: Disabled)
&& VT-d (Note)
Enables or disables Intel® Virtualization Technology for Directed I/O. (Default: Enabled)
Enables or disables Intel Execute Disable Bit function. This function may enhance protection for the computer,
reducing exposure to viruses and malicious buffer overflow attacks when working with its supporting software
and system. (Default: Enabled)

(Note) This item is present only when you install a CPU that supports this feature. For more information about
Intel® CPUs' unique features, please visit Intel's website.

- 27 -
&& Windows 8 Features
Allows you to select the operating system to be installed. (Default: Other OS)
&& CSM Support
Enables or disables UEFI CSM (Compatibility Support Module) to support a legacy PC boot process.

Always Enables UEFI CSM. (Default)

Never Disables UEFI CSM and supports UEFI BIOS boot process only.
This item is configurable only when Windows 8 Features is set to Windows 8 or Windows 8 WHQL.
&& Boot Mode Selection
Allows you to select which type of operating system to boot.

UEFI and Legacy Allows booting from operating systems that support legacy option ROM or UEFI
option ROM. (Default)

Legacy Only Allows booting from operating systems that only support legacy Option ROM.

UEFI Only Allows booting from operating systems that only support UEFI Option ROM.
This item is configurable only when CSM Support is set to Always.
&& LAN PXE Boot Option ROM
Allows you to select whether to enable the legacy option ROM for the LAN controller. (Default: Disabled)
This item is configurable only when CSM Support is set to Always.
&& Storage Boot Option Control
Allows you to select whether to enable the UEFI or legacy option ROM for the storage device controller.

Disabled Disables option ROM.

Legacy Only Enables legacy option ROM only. (Default)

UEFI Only Enables UEFI option ROM only.

Legacy First Enables legacy option ROM first.

UEFI First Enables UEFI option ROM first.
This item is configurable only when CSM Support is set to Always.
&& Other PCI Device ROM Priority
Allows you to select whether to enable the UEFI or Legacy option ROM for the PCI device controller other
than the LAN, storage device, and graphics controllers.

Legacy OpROM Enables legacy option ROM only.

UEFI OpROM Enables UEFI option ROM only. (Default)
&& Network stack
Disables or enables booting from the network to install a GPT format OS, such as installing the OS from
the Windows Deployment Services server. (Default: Disabled)
&& Ipv4 PXE Support
Enables or disables IPv4 PXE Support. This item is configurable only when Network stack is enabled.
&& Ipv6 PXE Support
Enables or disables IPv6 PXE Support. This item is configurable only when Network stack is enabled.
&& Administrator Password
Allows you to configure an administrator password. Press <Enter> on this item, type the password, and then
press <Enter>. You will be requested to confirm the password. Type the password again and press <Enter>. You
must enter the administrator password (or user password) at system startup and when entering BIOS Setup.
Differing from the user password, the administrator password allows you to make changes to all BIOS settings.
&& User Password
Allows you to configure a user password. Press <Enter> on this item, type the password, and then press
<Enter>. You will be requested to confirm the password. Type the password again and press <Enter>.
You must enter the administrator password (or user password) at system startup and when entering BIOS
Setup. However, the user password only allows you to make changes to certain BIOS settings but not all.

To cancel the password, press <Enter> on the password item and when requested for the password, enter
the correct one first. When prompted for a new password, press <Enter> without entering any password.
Press <Enter> again when prompted to confirm.
- 28 -
2-5 Peripherals

&& Initial Display Output

Specifies the first initiation of the monitor display from the installed PCI graphics card, PCI Express graphics
card or the onboard graphics.

IGFX Sets the onboard graphics as the first display.

PCIe 1 Slot Sets the graphics card on the PCIEX16 slot as the first display. (Default)

PCIe 2 Slot Sets the graphics card on the PCIEX4 slot as the first display.

PCI Sets the graphics card on the PCI slot as the first display.
&& XHCI Mode
Allows you to determine the operating mode for the xHCI controller in OS.

Smart Auto This mode is available only when the BIOS supports the xHCI controller in the pre-boot
environment. This mode is similar to Auto, but it adds the capability to route the ports
to xHCI or EHCI according to setting used in previous boots (for non-G3 boot) in the
pre-boot environment. This allows the use of USB 3.0 devices prior to OS boot. xHCI
controller enabling and rerouting should follow the steps in Auto, when previous boot
routs ports to EHCI. Note: This is the recommended mode when BIOS has xHCI pre-
boot support. (Default)

Auto  BIOS routes the sharable ports to EHCI controller. Then it uses ACPI protocols to
provide an option to enable the xHCI controller and reroute the sharable ports. Note:
This is the recommended mode when BIOS does NOT have xHCI pre-boot support.

Enabled All shared ports are eventually routed to the xHCI controller during the BIOS boot process.
If BIOS does not have pre-boot support for the xHCI controller, it should initially route
the sharable ports to the EHCI controller and then prior to OS boot it should route the
ports to xHCI controller. Note: OS has to provide support for the xHCI controller in this
mode. If the OS does not provide support, all sharable ports won't work.

Disabled  The USB 3.0 ports are routed to the EHCI controller and the xHCI controller is turned
off. All USB 3.0 devices function as High Speed devices regardless of xHCI software
support/availability.

Manual Allows you to determine whether to rout the USB 3.0 ports to the xHCI or EHCI controller
before booting to OS, and also provides you with options to manually rout each USB
3.0/2.0 port to xHCI or EHCI.

- 29 -
&& Audio Controller
Enables or disables the onboard audio function. (Default: Auto)
If you wish to install a 3rd party add-in audio card instead of using the onboard audio, set this item to
Disabled.
&& Intel Processor Graphics
Enables or disables the onboard graphics function. (Default: Enabled)
&& Intel Processor Graphics Memory Allocation
Allows you to set the onboard graphics memory size. Options are: 32M~1024M. (Default: 64M)
&& DVMT Total Memory Size
Allows you to allocate the DVMT memory size of the onboard graphics. Options are: 128M, 256M, MAX.
(Default: MAX)

&& Intel(R) Rapid Start Technology

Enables or disables Intel® Rapid Start Technology. (Default: Disabled)
&& Legacy USB Support
Allows USB keyboard/mouse to be used in MS-DOS. (Default: Enabled)
&& XHCI Hand-off
Determines whether to enable XHCI Hand-off feature for an operating system without XHCI Hand-off
support. (Default: Enabled)
&& EHCI Hand-off
Determines whether to enable EHCI Hand-off feature for an operating system without EHCI Hand-off
support. (Default: Disabled)
&& USB Storage Devices
Displays a list of connected USB mass storage devices. This item appears only when a USB storage device
is installed.
&& OnBoard LAN Controller
Enables or disables the onboard LAN function. (Default: Enabled)
If you wish to install a 3rd party add-in network card instead of using the onboard LAN, set this item to
Disabled.

`` SATA Configuration
&& Integrated SATA Controller
Enables or disables the integrated SATA controllers. (Default: Enabled)
&& SATA Mode Selection
Enables or disables RAID for the SATA controllers integrated in the Chipset or configures the SATA controllers
to AHCI mode.

IDE Configures the SATA controller to IDE mode.

AHCI  Configures the SATA controller to AHCI mode. Advanced Host Controller Interface
(AHCI) is an interface specification that allows the storage driver to enable advanced
Serial ATA features such as Native Command Queuing and hot plug. (Default)
`` Serial ATA Port 0/1/2/3/4/5
&& Port 0/1/2/3/4/5
Enables or disables each SATA port. (Default: Enabled)
&& Hot plug
Enables or disable the hot plug capability for each SATA port. (Default: Disabled)
&& External SATA
Enables or disables support for external SATA devices. (Default: Disabled)

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`` Super IO Configuration
This section provides information on the super I/O chip and allows you to configure the serial port and
parallel port.
&& Serial Port A
Enables or disables the onboard serial port. (Default: Enabled)
&& Parallel Port
Enables or disables the onboard parallel port. (Default: Enabled)
&& Device Mode
This item is configurable only when Parallel Port is set to Enabled. Selects an operating mode for the
onboard parallel (LPT) port. (Default), EPP Mode (Enhanced Parallel Port), ECP Mode (Extended Capabilities
Port), EPP Mode & ECP Mode.

`` Intel(R) Smart Connect Technology

&& ISCT Support
Enables or disables Intel® Smart Connect Technology. (Default: Disabled)

2-6 Power Management

&& Power Loading

Enables or disables dummy load. When the power supply is at low load, a self-protection will activate causing
it to shutdown or fail. If this occurs, please set to Enabled. Auto lets the BIOS automatically configure this
setting. (Default: Auto)
&& Resume by Alarm
Determines whether to power on the system at a desired time. (Default: Disabled)
If enabled, set the date and time as following:

Wake up day: Turn on the system at a specific time on each day or on a specific day in a month.

Wake up hour/minute/second: Set the time at which the system will be powered on automatically.
Note: When using this function, avoid inadequate shutdown from the operating system or removal of the
AC power, or the settings may not be effective.

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&& Soft-Off by PWR-BTTN
Configures the way to turn off the computer in MS-DOS mode using the power button.

Instant-Off Press the power button and then the system will be turned off instantly. (Default)

Delay 4 Sec. Press and hold the power button for 4 seconds to turn off the system. If the power
button is pressed for less than 4 seconds, the system will enter suspend mode.
&& RC6(Render Standby)
Allows you to determine whether to let the onboard graphics enter standby mode to decrease power
consumption. (Default: Disabled)
&& AC BACK
Determines the state of the system after the return of power from an AC power loss.

Always Off The system stays off upon the return of the AC power. (Default)

Always On The system is turned on upon the return of the AC power.

Memory The system returns to its last known awake state upon the return of the AC power.
&& Power On By Keyboard
Allows the system to be turned on by a PS/2 keyboard wake-up event.
Note: To use this function, you need an ATX power supply providing at least 1A on the +5VSB lead.

Disabled Disables this function. (Default)
 Key
Any Press any key to turn on the system.

Keyboard 98 Press POWER button on the Windows 98 keyboard to turn on the system.

Password Set a password with 1~5 characters to turn on the system.
&& Power On Password
當Set the password when Power On By Keyboard is set to Password.
Press <Enter> on this item and set a password with up to 5 characters and then press <Enter> to accept.
To turn on the system, enter the password and press <Enter>.
Note: To cancel the password, press <Enter> on this item. When prompted for the password, press <Enter>
again without entering the password to clear the password settings.
&& Power On By Mouse
Allows the system to be turned on by a PS/2 mouse wake-up event.
Note: To use this function, you need an ATX power supply providing at least 1A on the +5VSB lead.

Disabled Disables this function. (Default)

Move Move the mouse to turn on the system.

Double Click Double click on left button on the mouse to turn on the system.
&& ErP
Determines whether to let the system consume least power in S5 (shutdown) state. (Default: Disabled)
Note: When this item is set to Enabled, the following functions will become unavailable: PME event wake
up, power on by mouse, power on by keyboard, and wake on LAN.

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2-7 Save & Exit

&& Save & Exit Setup

Press <Enter> on this item and select Yes. This saves the changes to the CMOS and exits the BIOS Setup
program. Select No or press <Esc> to return to the BIOS Setup Main Menu.
&& Exit Without Saving
Press <Enter> on this item and select Yes. This exits the BIOS Setup without saving the changes made
in BIOS Setup to the CMOS. Select No or press <Esc> to return to the BIOS Setup Main Menu.
&& Load Optimized Defaults
Press <Enter> on this item and select Yes to load the optimal BIOS default settings. The BIOS defaults
settings help the system to operate in optimum state. Always load the Optimized defaults after updating
the BIOS or after clearing the CMOS values.
&& Boot Override
Allows you to select a device to boot immediately. Press <Enter> on the device you select and select Yes
to confirm. Your system will restart automatically and boot from that device.
&& Save Profiles
This function allows you to save the current BIOS settings to a profile. You can create up to 8 profiles and
save as Setup Profile 1~ Setup Profile 8. Press <Enter> to complete. Or you can select Select File in
HDD/USB/FDD to save the profile to your storage device.
&& Load Profiles
If your system becomes unstable and you have loaded the BIOS default settings, you can use this function
to load the BIOS settings from a profile created before, without the hassles of reconfiguring the BIOS
settings. First select the profile you wish to load and then press <Enter> to complete. You can select Select
File in HDD/USB/FDD to input the profile previously created from your storage device or load the profile
automatically created by the BIOS, such as reverting the BIOS settings to the last settings that worked
properly (last known good record).

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 Chapter 3 Appendix
Drivers Installation
•• Before installing the drivers, first install the operating system. (The following instructions use
Windows 8 as the example operating system.)
•• After installing the operating system, insert the motherboard driver disk into your optical drive. Click
on the message "Tap to choose what happens with this disc" on the top-right corner of the screen
and select "Run Run.exe." (Or go to My Computer, double-click the optical drive and execute the
Run.exe program.)

"Xpress Install" will automatically scan your system and then list all of the drivers that are recommended to
install. You can click the Xpress Install button and "Xpress Install" will install all of the selected drivers. Or click
the arrow icon to individually install the drivers you need.

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Regulatory Statements
Regulatory Notices
This document must not be copied without our written permission, and the contents there of must not be imparted
to a third party nor be used for any unauthorized purpose.
Contravention will be prosecuted. We believe that the information contained herein was accurate in all respects
at the time of printing. GIGABYTE cannot, however, assume any responsibility for errors or omissions in this text.
Also note that the information in this document is subject to change without notice and should not be construed
as a commitment by GIGABYTE.

Our Commitment to Preserving the Environment

In addition to high-efficiency performance, all GIGABYTE motherboards fulfill European Union regulations
for RoHS (Restriction of Certain Hazardous Substances in Electrical and Electronic Equipment) and WEEE
(Waste Electrical and Electronic Equipment) environmental directives, as well as most major worldwide safety
requirements. To prevent releases of harmful substances into the environment and to maximize the use of our
natural resources, GIGABYTE provides the following information on how you can responsibly recycle or reuse
most of the materials in your "end of life" product.

Restriction of Hazardous Substances (RoHS) Directive Statement

GIGABYTE products have not intended to add and safe from hazardous substances (Cd, Pb, Hg, Cr+6, PBDE
and PBB). The parts and components have been carefully selected to meet RoHS requirement. Moreover, we at
GIGABYTE are continuing our efforts to develop products that do not use internationally banned toxic chemicals.

Waste Electrical & Electronic Equipment (WEEE) Directive Statement

GIGABYTE will fulfill the national laws as interpreted from the 2002/96/EC WEEE (Waste Electrical and Electronic
Equipment) directive. The WEEE Directive specifies the treatment, collection, recycling and disposal of electric
and electronic devices and their components. Under the Directive, used equipment must be marked, collected
separately, and disposed of properly.

WEEE Symbol Statement

The symbol shown below is on the product or on its packaging, which indicates that this product
must not be disposed of with other waste. Instead, the device should be taken to the waste collection
centers for activation of the treatment, collection, recycling and disposal procedure. The separate
collection and recycling of your waste equipment at the time of disposal will help to conserve natural
resources and ensure that it is recycled in a manner that protects human health and the environment.
For more information about where you can drop off your waste equipment for recycling, please contact your
local government office, your household waste disposal service or where you purchased the product for details
of environmentally safe recycling.
ŠŠ When your electrical or electronic equipment is no longer useful to you, "take it back" to your local or regional
waste collection administration for recycling.
ŠŠ If you need further assistance in recycling, reusing in your "end of life" product, you may contact us at the
Customer Care number listed in your product's user's manual and we will be glad to help you with your effort.

Finally, we suggest that you practice other environmentally friendly actions by understanding and using the
energy-saving features of this product (where applicable), recycling the inner and outer packaging (including
shipping containers) this product was delivered in, and by disposing of or recycling used batteries properly.
With your help, we can reduce the amount of natural resources needed to produce electrical and electronic
equipment, minimize the use of landfills for the disposal of "end of life" products, and generally improve our
quality of life by ensuring that potentially hazardous substances are not released into the environment and are
disposed of properly.

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 Contact Us

GIGA-BYTE TECHNOLOGY CO., LTD.

Address: No.6, Bao Chiang Road, Hsin-Tien Dist., New Taipei City 231,Taiwan
TEL: +886-2-8912-4000, FAX: +886-2-8912-4005
Tech. and Non-Tech. Support (Sales/Marketing) : http://ggts.gigabyte.com.tw
WEB address (English): http://www.gigabyte.com
WEB address (Chinese): http://www.gigabyte.tw

You may go to the GIGABYTE website, select your language in the language list on the top right corner of the website.

•• GIGABYTE Global Service System

To submit a technical or non-technical (Sales/Marketing)

question, please link to:
http://ggts.gigabyte.com.tw
Then select your language to enter the system.

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