GIGA-BYTE TECHNOLOGY B660 AORUS MASTER User manual

To reduce the impacts on global warming, the packaging materials of this product
are recyclable and reusable. GIGABYTE works with you to protect the environment.
B660 AORUS MASTER
B660 A MASTER DDR4
(B660 AORUS MASTER DDR4)
User's Manual
Rev. 1201
12ME-B66MST4-1201R
For more product details, please visit GIGABYTE's website.
B660 A MASTER
DDR4
B660 AORUS
MASTER

Copyright
©2021 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. 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: https://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:

- 3 -
Table of Contents
Chapter 1 Product Introduction.......................................................................................4
1-1 Motherboard Layout......................................................................................... 4
1-2 Motherboard Block Diagram ............................................................................ 6
1-3 Box Contents.................................................................................................... 7
Chapter 2 Hardware Installation .....................................................................................8
2-1 Installation Precautions.................................................................................... 8
2-2 Product Specications...................................................................................... 9
2-3 Installing the CPU and CPU Cooler ............................................................... 13
2-4 Installing the Memory..................................................................................... 16
2-5 Installing an Expansion Card ......................................................................... 17
2-6 Back Panel Connectors.................................................................................. 18
2-7 Internal Connectors........................................................................................ 20
Chapter 3 BIOS Setup ..................................................................................................34
Chapter 4 Installing the Operating System and Drivers................................................36
4-1 Operating System Installation ........................................................................ 36
4-2 Drivers Installation.......................................................................................... 37
Chapter 5 Appendix ......................................................................................................38
5-1 Conguring a RAID Set.................................................................................. 38
Regulatory Notices.................................................................................................... 39
Contact Us ................................................................................................................ 44

- 4 -
1-1 Motherboard Layout
Chapter 1 Product Introduction
Temperature
sensor
M2_WIFI
U320G_
U32G2
U32
U32_LAN
LGA1700
ATX
AUDIO
DDR5_A1 DDR5_A2 DDR5_B1 DDR5_B2
BAT
Intel®B660
CLR_CMOS
M_BIOS
THB_C1
THB_C2
CODEC
PCIEX16
PCIEX4
PCIEX1
F_U32C
F_U32
SYS_FAN6_PUMP
EC_TEMP2
EC_TEMP1
USB20
6080110
M2A_CPU
B660 AORUS MASTER
SYS_FAN1
F_USB2D_LED1
F_AUDIO
F_USB1
LED_C1
SYS_FAN3
SPI_TPM
F_PANEL
CPU_FAN
CPU_OPT
SYS_FAN4
iTE®
Super I/O
D_LED2
LED_C2
ATX_12V_2X4ATX_12V_2X2
USB 3.2 Gen 1 Hub
USB 2.0 Hub
USB 3.2 Gen 1 Hub
SATA3 5 7
4 6 VGA CPU
BOOT DRAM
DP_HDMI20
Intel®
2.5GbE LAN
SYS_FAN5_PUMP
NOISE_SENSOR
RST_SW
RST
SYS_FAN2
QFLED
QFLASH_PLUS
6080110
M2P_SB
6080110
M2M_SB

- 5 -
Temperature
sensor
M2_WIFI
U320G_
U32G2
U32
U32_LAN
LGA1700
ATX
AUDIO
DDR4_A1 DDR4_A2 DDR4_B1 DDR4_B2
BAT
Intel®B660
CLR_CMOS
M_BIOS
THB_C1
THB_C2
CODEC
PCIEX16
PCIEX4
PCIEX1
F_U32C
F_U32
SYS_FAN6_PUMP
EC_TEMP2
EC_TEMP1
USB20
6080110
M2A_CPU
B660 A MASTER DDR4
SYS_FAN1
F_USB2D_LED1
F_AUDIO
F_USB1
LED_C1
SYS_FAN3
SPI_TPM
F_PANEL
CPU_FAN
CPU_OPT
SYS_FAN4
iTE®
Super I/O
D_LED2
LED_C2
ATX_12V_2X4ATX_12V_2X2
USB 3.2 Gen 1 Hub
USB 2.0 Hub
USB 3.2 Gen 1 Hub
SATA3 5 7
4 6 VGA CPU
BOOT DRAM
DP_HDMI20
Intel®
2.5GbE LAN
SYS_FAN5_PUMP
NOISE_SENSOR
RST_SW
RST
SYS_FAN2
QFLED
QFLASH_PLUS
6080110
M2P_SB
6080110
M2M_SB

- 6 -
1-2 Motherboard Block Diagram
jOnly for B660 AORUS MASTER.
kOnly for B660 A MASTER DDR4.
LGA1700 CPU
CPU CLK+/- (80~800 MHz)
DMI 4.0
LAN
RJ45
Intel®2.5GbE
LAN
4 SATA 6Gb/s
(SATA3 4~7)
DDI
PCI Express 3.0 Bus
Center/Subwoofer
Speaker Out
Line Out
MIC
Line In
S/PDIF Out
Rear Speaker Out
CODEC
Intel®B660
x1
DisplayPort
x4
1 PCI Express x4
M.2 WIFI
PCI Express 4.0 Bus
1 PCI Express x16
x16
1 M.2 Socket 3
(M2M_SB)
x1
PCI Express x1
DDR5 4800/4000 MHzj
DDR4 3200/3000/2933/2666/2400/2133 MHzk
DDI HDMI 2.0
Switch
or
PCI Express 4.0 Bus
1 M.2 Socket 3
(M2A_CPU)
PCI Express 4.0 Bus
1 M.2 Socket 3
(M2P_SB) eSPI
Bus
SPI
Bus
iTE®
Super I/O
1 USB Type-C®,
with USB 3.2 Gen 2x2 support
1 USB 3.2 Gen 2 Type-A
BIOS
TPM
4 USB 2.0/1.1
USB 2.0
Hub
1 USB Type-C®,
with USB 3.2 Gen 2 support
4 USB 2.0/1.1
6 USB 3.2 Gen 1
USB 3.2
Gen 1 Hub

- 7 -
1-3 Box Contents
5B660 AORUS MASTER or B660 A MASTER DDR4 motherboard
5User's Manual
5One antenna
5Two SATA cables
5One noise detection cable
5M.2 screws
5One G Connector
* 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.

- 8 -
2-1 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 connecting or 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 or wet 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.
•If you use an adapter, extension power cable, or power strip, ensure to consult with its
installation and/or grounding instructions.
Chapter 2 Hardware Installation

- 9 -
2-2 ProductSpecications
CPU LGA1700 socket: Support for 12th Generation Intel®Core™i9 processors/Intel®
Core™i7 processors/Intel®Core™i5 processors
(Go to GIGABYTE's website for the latest CPU support list.)
L3 cache varies with CPU
Chipset Intel®B660 Express Chipset
Memory Support for DDR5 4800/4000 MHz memory modulesj
Support for DDR4 3200/3000/2933/2666/2400/2133 MHz memory modulesk
4 x DDR DIMM sockets supporting up to 128 GB (32 GB single DIMM capacity)
of system memory
Dual channel memory architecture
Support for ECC Un-buffered DIMM 1Rx8/2Rx8 memory modules (operate in
non-ECC mode)
Support for non-ECC Un-buffered DIMM 1Rx8/2Rx8/1Rx16 memory modules
Support for Extreme Memory Prole (XMP) memory modules
(Go to GIGABYTE's website for the latest supported memory speeds and memory
modules.)
Onboard
Graphics
Integrated Graphics Processor-Intel®HD Graphics support:
- 1 x DisplayPort, supporting a maximum resolution of 4096x2304@60 Hz
* Support for DisplayPort 1.2 version and HDCP 2.3
- 1 x HDMI port, supporting a maximum resolution of 4096x2160@60 Hz
* Support for HDMI 2.0 version and HDCP 2.3.
(Graphics specications may vary depending on CPU support.)
Audio Realtek®ALC1220-VB CODEC
* The back panel line out jack supports DSD audio.
High Denition Audio
2/4/5.1/7.1-channel
Support for S/PDIF Out
LAN Intel® 2.5GbE LAN chip (2.5 Gbps/1 Gbps/100 Mbps)
Wireless
Communication
Module
Intel®Wi-Fi 6 AX201 (For B660 AORUS MASTER PCB rev. 1.0/B660 A MASTER
DDR4 PCB rev. 1.1)
Intel®Wi-Fi 6 AX200 (For B660 AORUS MASTER PCB rev. 1.1/B660 A MASTER
DDR4 PCB rev. 1.2)
- WIFI a, b, g, n, ac, ax, supporting 2.4/5 GHz Dual-Band
- BLUETOOTH 5.2
- Support for 11ax 160MHz wireless standard and up to 2.4 Gbps data rate
Intel®Wi-Fi 6E AX211 (For B660 AORUS MASTER PCB rev. 1.2/B660 A MASTER
DDR4 PCB rev. 1.3)
- WIFI a, b, g, n, ac, ax, supporting 2.4/5/6 GHz carrier frequency bands
- BLUETOOTH 5.2
- Support for 11ax 160MHz wireless standard and up to 2.4 Gbps data rate
(Actual data rate may vary depending on environment and equipment.)
jOnly for B660 AORUS MASTER.
kOnly for B660 A MASTER DDR4.

- 10 -
Expansion Slots 1 x PCI Express x16 slot, running at x16 (PCIEX16)
(The PCIEX16 slot conforms to PCI Express 4.0 standard.)
1 x PCI Express x16 slot, running at x4 (PCIEX4)
* The PCIEX4 slot shares bandwidth with the M2M_SB connector. The PCIEX4 slot
becomes unavailable when a device is installed in the M2M_SB connector.
1 x PCI Express x16 slot, running at x1 (PCIEX1)
(The PCIEX4 and PCIEX1 slots conform to PCI Express 3.0 standard.)
Multi-Graphics
Technology Support forAMD Quad-GPU CrossFire™and 2-WayAMD CrossFire™technologies
Storage Interface CPU:
- 1 x M.2 connector (Socket 3, M key, type 2260/2280/22110 PCIe 4.0 x4/x2
SSD support) (M2A_CPU)
Chipset:
- 1 x M.2 connector (Socket 3, M key, type 2260/2280/22110 PCIe 4.0 x4/x2
SSD support) (M2P_SB)
- 1 x M.2 connector (Socket 3, M key, type 2260/2280/22110 PCIe 3.0 x4/x2
SSD support) (M2M_SB)
- 4 x SATA 6Gb/s connectors
Support for SATA RAID 0, RAID 1, RAID 5, and RAID 10
Intel®Optane™Memory Ready
* System acceleration with Intel®Optane™Memory can only be enabled on the M.2
connectors supported by the Chipset.
USB Chipset:
- 1 x USB Type-C®port on the back panel, with USB 3.2 Gen 2x2 support
- 1 x USB Type-C®port with USB 3.2 Gen 2 support, available through the
internal USB header
- 1 x USB 3.2 Gen 2 Type-A port (red) on the back panel
- 4 x USB 2.0/1.1 ports available through the internal USB headers
Chipset+2 USB 3.2 Gen 1 Hubs:
- 6 x USB 3.2 Gen 1 ports (4 ports on the back panel, 2 ports available through
the internal USB header)
Chipset+USB 2.0 Hub:
- 4 x USB 2.0/1.1 ports on the back panel
Internal
Connectors
1 x 24-pin ATX main power connector
1 x 8-pin ATX 12V power connector
1 x 4-pin ATX 12V power connector
1 x CPU fan header
1 x water cooling CPU fan header
4 x system fan headers
2 x system fan/water cooling pump headers
2 x addressable LED strip headers
2 x RGB LED strip headers
3 x M.2 Socket 3 connectors
4 x SATA 6Gb/s connectors
1 x front panel header
1 x front panel audio header

- 11 -
Internal
Connectors
1 x USB Type-C®header, with USB 3.2 Gen 2 support
1 x USB 3.2 Gen 1 header
2 x USB 2.0/1.1 headers
1 x noise detection header
2 x Thunderbolt™add-in card connectors
1 x Trusted Platform Module header (For the GC-TPM2.0 SPI/GC-TPM2.0 SPI
2.0 module only)
1 x reset button
1 x Q-Flash Plus button
1 x reset jumper
2 x temperature sensor headers
1 x Clear CMOS jumper
Back Panel
Connectors
1 x USB Type-C®port, with USB 3.2 Gen 2x2 support
1 x USB 3.2 Gen 2 Type-A port (red)
4 x USB 3.2 Gen 1 ports
4 x USB 2.0/1.1 ports
2 x SMA antenna connectors (2T2R)
1 x DisplayPort
1 x HDMI 2.0 port
1 x RJ-45 port
1 x optical S/PDIF Out connector
5 x audio jacks
I/O Controller iTE®I/O Controller Chip
Hardware
Monitor
Voltage detection
Temperature detection
Fan speed detection
Water cooling ow rate detection
Fan fail warning
Fan speed control
* Whether the fan (pump) speed control function is supported will depend on the fan
(pump) you install.
Noise detection
BIOS 1 x 256 Mbit ash
Use of licensed AMI UEFI BIOS
PnP 1.0a, DMI 2.7, WfM 2.0, SM BIOS 2.7, ACPI 5.0

- 12 -
Unique Features Support for APP Center
* Available applications in APP Center may vary by motherboard model. Supported
functions of each application may also vary depending on motherboard specications.
- @BIOS
- EasyTune
- Fast Boot
- Game Boost
- ON/OFF Charge
- RGB Fusion
- Smart Backup
- System Information Viewer
Support for Q-Flash Plus
Support for Q-Flash
Support for Xpress Install
Bundled
Software
Norton®Internet Security (OEM version)
cFosSpeed
Operating
System
Support for Windows 11 64-bit
Support for Windows 10 64-bit
Form Factor ATX Form Factor; 30.5cm x 24.4cm
* GIGABYTE reserves the right to make any changes to the product specications and product-related information without
prior notice.
Please visit the Support\Utility List page on GIGABYTE's website to download the latest
version of apps.
Please visit GIGABYTE's website for support lists of CPU, memory
modules, SSDs, and M.2 devices.
B660 AORUS MASTER B660 A MASTER DDR4

- 13 -
2-3 Installing the CPU and CPU Cooler
A. Note the CPU Orientation
Note the alignment keys on the motherboard CPU socket and the notches on the CPU.
Please visit GIGABYTE's website for details on hardware installation.
Do not remove the CPU socket cover before inserting the CPU. It may pop off from the load
plate automatically after you insert the CPU and close the load plate.
Notch
Notch
LGA1700 CPU
Triangle Pin One Marking
on the CPU
Alignment Key
LGA1700 CPU Socket
Triangle Pin One Marking
of the CPU Socket
Alignment Key
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.

- 14 -
B. Installing the CPU
Follow the steps below to correctly install the CPU into the motherboard CPU socket.
w
u
Do not force to engage the CPU socket locking lever when the CPU is not installed correctly
as this would damage the CPU and CPU socket.
v
jGently press the CPU socket lever handle
down and away from the socket.
kCompletely lift up the CPU socket lock-
ing lever.
lUse the finger tab on the side of the
metal load plate to lift open the metal
load plate with the plastic protective cover
attached to it.
Hold the CPU with your ngers by the edges.
Align the CPU pin one marking (triangle) with
the pin one corner of the CPU socket (or you
may align the CPU notches with the socket
alignment keys) and gently insert the CPU
into position.
Make sure the CPU is properly installed and
then close the load plate. The plastic protec-
tive cover will pop off, just remove it. Secure
the lever under its retention tab to complete
the installation of the CPU.
* Always replace the plastic protective cover
when the CPU is not installed to protect the
CPU socket.
j
k
l
Finger Tab
Pin One
j
k
l

- 15 -
C. Installing the CPU Cooler
Be sure to install the CPU cooler after installing the CPU. (Actual installation process may differ depending the
CPU cooler to be used. Refer to the user's manual for your CPU cooler.)
u
v
Apply an even and thin layer of thermal
grease on the surface of the installed CPU.
Place the cooler atop the CPU, aligning the
four push pins through the pin holes on the
motherboard. Push down on the push pins
diagonally.
j
j
kk
w
Finally, attach the power connector of
the CPU cooler to the CPU fan header
(CPU_FAN) on the motherboard.
CPU_FAN

- 16 -
2-4 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Conguration
This motherboard provides four memory sockets and supports Dual Channel Technology. After the memory
is installed, the BIOS will automatically detect the specications and capacity of the memory. Enabling Dual
Channel memory mode will double the original memory bandwidth.
The four memory sockets are divided into two channels and each channel has two memory sockets as following:
Channel A: DDR5_A1j/DDR4_A1k/DDR5_A2j/DDR4_A2k
Channel B: DDR5_B1j/DDR4_B1k/DDR5_B2j/DDR4_B2k
* Recommended Dual Channel Memory Conguration:
DDR5_A1j
DDR4_A1k
DDR5_A2j
DDR4_A2k
DDR5_B1j
DDR4_B1k
DDR5_B2j
DDR4_B2k
2 Modules - - DS/SS - - DS/SS
4 Modules DS/SS DS/SS DS/SS DS/SS
(SS=Single-Sided, DS=Double-Sided, "- -"=No Memory)
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 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.
When installing a single memory module, we recommend that you install it in the DDR5_A2j/
DDR4_A2ksocket.
DDR5_A1j/DDR4_A1k
DDR5_A2j/DDR4_A2k
DDR5_B1j/DDR4_B1k
DDR5_B2j/DDR4_B2k
jOnly for B660 AORUS MASTER.
kOnly for B660 A MASTER DDR4.

- 17 -
2-5 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.
Follow the steps below to correctly install your expansion card in the expansion slot.
1. Locate an expansion slot that supports your card. Remove the metal slot cover from the chassis back panel.
2. Align the card with the slot, and press down on the card until it is fully seated in the slot.
3. Make sure the metal contacts on the card are completely inserted into the slot.
4. Secure the card's metal bracket to the chassis back panel with a screw.
5. After installing all expansion cards, replace the chassis cover(s).
6. Turn on your computer. If necessary, go to BIOS Setup to make any required BIOS changes for your
expansion card(s).
7. Install the driver provided with the expansion card in your operating system.
PCIEX16 Slot

- 18 -
2-6 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.
SMA Antenna Connectors (2T2R)
Use this connector to connect an antenna.
DisplayPort
DisplayPort delivers high quality digital imaging and audio, supporting bi-directional audio transmission.
DisplayPort can support HDCP 2.3 content protection mechanisms. You can use this port to connect your
DisplayPort-supported monitor. Note: The DisplayPort Technology can support a maximum resolution of
4096x2304@60 Hz but the actual resolutions supported depend on the monitor being used.
HDMI 2.0 Port
The HDMI port supports HDCP 2.3 and Dolby TrueHD and DTS HD MasterAudio
formats. It also supports up to 192KHz/24bit 7.1-channel LPCM audio output.
You can use this port to connect your HDMI-supported monitor. The maximum supported resolution is
4096x2160@60 Hz, but the actual resolutions supported are dependent on the monitor being used.
USB 3.2 Gen 2 Type-A Port (Red) (Q-Flash Plus Port)
The USB 3.2 Gen 2 port supports the USB 3.2 Gen 2 specication and is compatible to the USB 3.2 Gen 1 and
USB 2.0 specication. Use this port for USB devices. Before using Q-Flash Plus (Note), make sure to insert the
USB ash drive into this port rst.
USB Type-C®Port
The reversible USB port supports the USB 3.2 Gen 2x2 specication and is compatible to the USB 3.2
Gen 2, USB 3.2 Gen 1, and USB 2.0 specications. Use this port for USB devices.
USB 3.2 Gen 1 Port
The USB 3.2 Gen 1 port supports the USB 3.2 Gen 1 specication and is compatible to the USB 2.0
specication. Use this port for USB devices.
Tighten the antennas to the antenna connectors and then aim the antennas correctly for better
signal reception.
After installing the DisplayPort/HDMI device, make sure to set the default sound playback device
to DisplayPort/HDMI. (The item name may differ depending on your operating system.)
•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.
(Note) To enable the Q-Flash Plus function, please navigate to the "Unique Features" page of GIGABYTE's
website for more information.

- 19 -
RJ-45 LAN Port
The Gigabit Ethernet LAN port provides Internet connection at up to 2.5 Gbps data rate. The following
describes the states of the LAN port LEDs.
Center/Subwoofer Speaker Out
Use this audio jack to connect center/subwoofer speakers.
Rear Speaker Out
Use this audio jack to connect rear speakers.
Optical S/PDIF Out Connector
This connector provides digital audio out to an external audio system that supports digital optical audio.
Before using this feature, ensure that your audio system provides an optical digital audio in connector.
Line In/Side Speaker Out
The line in jack. Use this audio jack for line in devices such as an optical drive, walkman, etc.
Line Out/Front Speaker Out
The line out jack. This jack supports audio amplifying function. For better sound quality, it is recommended
that you connect your headphone/speaker to this jack (actual effects may vary by the device being used).
Mic In/Side Speaker Out
The Mic in jack.
Audio Jack Congurations:
Jack Headphone/
2-channel 4-channel 5.1-channel 7.1-channel
Center/Subwoofer Speaker
Out a a
Rear Speaker Out a a a
Line In/Side Speaker Out a
Line Out/Front Speaker Out a a a a
Mic In/Side Speaker Out a
If you want to install a Side Speaker, you need to retask either the Line in or Mic in jack to be Side
Speaker out through the audio driver.
Please visit GIGABYTE's website for details on conguring the audio software.
Activity LED
Speed LED
LAN Port
Speed LED:
State Description
Green 2.5 Gbps data rate
Orange 1 Gbps data rate
Off 100 Mbps data rate
Activity LED:
State Description
Blinking Data transmission or receiving is occurring
On No data transmission or receiving is occurring

- 20 -
2-7 Internal Connectors
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_2X2/ATX_12V_2X4
2) ATX
3) CPU_FAN
4) SYS_FAN1/2/3/4
5) SYS_FAN5/6_PUMP
6) CPU_OPT
7) EC_TEMP1/EC_TEMP2
8) LED_C1/LED_C2
9) D_LED1/D_LED2
10) M2A_CPU/M2P_SB/M2M_SB
11) SATA3 4/5/6/7
12) BAT
13) F_PANEL
14) F_AUDIO
15) F_U32C
16) F_U32
17) F_USB1/F_USB2
18) SPI_TPM
19) THB_C1/THB_C2
20) NOISE_SENSOR
21) CLR_CMOS
22) RST_SW/RST
23) QFLASH_PLUS
24) CPU/DRAM/VGA/BOOT
137
16
15
2
8
19
11
5
17 414 18
91
9 8
21
22
36
12
20
10
10
10
23
24
7