Gigabyte B660I AORUS PRO DDR4 User manual

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B660IAORUS PRO DDR4
User's Manual
Rev. 1001
12ME-B66ARSI-1001R
For more product details, please visit GIGABYTE's website.

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.
For detailed product information, 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 ............................................................................ 5
1-3 Box Contents.................................................................................................... 6
Chapter 2 Hardware Installation .....................................................................................7
2-1 Installation Precautions.................................................................................... 7
2-2 Product Specications...................................................................................... 8
2-3 Installing the CPU and CPU Cooler ............................................................... 11
2-4 Installing the Memory..................................................................................... 14
2-5 Installing an Expansion Card ......................................................................... 15
2-6 Back Panel Connectors.................................................................................. 16
2-7 Internal Connectors........................................................................................ 18
Chapter 3 BIOS Setup ..................................................................................................28
Chapter 4 Installing the Operating System and Drivers................................................30
4-1 Operating System Installation ........................................................................ 30
4-2 Drivers Installation.......................................................................................... 31
Chapter 5 Appendix ......................................................................................................32
5-1 Conguring a RAID Set.................................................................................. 32
Regulatory Notices.................................................................................................... 33
Contact Us ................................................................................................................ 36

- 4 -
1-1 Motherboard Layout
Chapter 1 Product Introduction
Temperature sensor
CPU_FAN CPU_OPT
SYS_FAN1
LGA1700
ATX
B660I AORUS PRO DDR4
AUDIO
ATX_12V_2X4
F_USB
RST
F_PANEL
F_U32F_U32CGCLR_CMOS
LED_C
SPEAKER
U32_LAN
U32G2
U32G2C
U32_20
QFLASH_
PLUS
QFLED
BAT
CODEC
F_AUDIO
M_BIOS
D_LED
CI
DP_
HDMI20
M2_WIFI
USB 3.2
Gen 1 Hub
PCIEX16
iTE®
Super I/O
Intel®
2.5GbE LAN (Note)
M2A_CPU
6080
Intel®B660
DDR4_A1 DDR4_B1
SATA3
7 5
6 4
(Note) The chip is on the back of the motherboard.

- 5 -
1-2 Motherboard Block Diagram
LGA1700 CPU
CPU CLK+/- (80~800 MHz)
DMI 4.0
LAN
4 SATA 6Gb/s
eSPI
Bus
SPI
Bus
DDI
DDI
Center/Subwoofer
Speaker Out
Line Out
MIC
S/PDIF Out
Rear Speaker Out
CODEC
iTE®
Super I/O
4 USB 3.2 Gen 1
Intel®B660
DisplayPort
HDMI 2.0
USB 3.2
Gen 1 Hub
4 USB 2.0/1.1
BIOS
PCI Express 4.0 Bus
PCI Express 4.0 Bus
1 M.2 Socket 3
Intel®
2.5GbE LAN
1 USB Type-C®,
with USB 3.2 Gen 2 support
1 USB Type-C®,
with USB 3.2 Gen 1 support
1 USB 3.2 Gen 2 Type-A
2 USB 3.2 Gen 1
DDR4 3200/3000/2933/
2666/2400/2133 MHz
x16
1 PCI Express x16
M.2 WIFI
RJ45

- 6 -
1-3 Box Contents
5B660I AORUS PRO DDR4 motherboard
5User's Manual
5One antenna
5Two SATA cables
5One RGB LED strip extension cable
5Two fan power extension cables
5M.2 screws
* The box contents above are for reference only and the actual items shall depend on the product package you obtain.
The box contents are subject to change without notice.

- 7 -
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

- 8 -
2-2 ProductSpecications
CPU LGA1700 socket: Support for 12th Generation Intel®Core™, Pentium®Gold and
Celeron®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 DDR4 3200/3000/2933/2666/2400/2133 MHz memory modules
2 x DDR4 DIMM sockets supporting up to 64 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®Audio CODEC
High Denition Audio
2/4/5.1/7.1-channel
Support for S/PDIF Out
* To congure 7.1-channel audio, you need to open the audio software and select Device
advanced settings > Playback Device to change the default setting rst. Please visit
GIGABYTE's website for details on conguring the audio software.
LAN Intel®2.5GbE LAN chip (2.5 Gbps/1 Gbps/100 Mbps)
Wireless
Communication
Module
Intel®Wi-Fi 6 AX201 (For PCB rev. 1.0)
Intel®Wi-Fi 6 AX200 (For PCB rev. 1.1)
- 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 PCB rev. 1.2)
- 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.)
Expansion Slots 1 x PCI Express x16 slot, running at x16
(The PCIEX16 slot conforms to PCI Express 4.0 standard.)
Storage Interface CPU:
- 1 x M.2 connector (Socket 3, M key, type 2260/2280 PCIe 4.0 x4/x2 SSD
support)
Chipset:
- 4 x SATA 6Gb/s connectors
Support for SATA RAID 0, RAID 1, RAID 5, and RAID 10

- 9 -
USB Chipset:
- 1 x USB Type-C®port on the back panel, with USB 3.2 Gen 2 support
- 1 x USB Type-C®port with USB 3.2 Gen 1 support, available through the
internal USB header
- 1 x USB 3.2 Gen 2 Type-A port (red) on the back panel
- 2 x USB 3.2 Gen 1 ports available through the internal USB header
- 4 x USB 2.0/1.1 ports (2 ports on the back panel, 2 ports available through
the internal USB header)
Chipset+USB 3.2 Gen 1 Hub:
- 4 x USB 3.2 Gen 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 CPU fan header
1 x water cooling CPU fan header
1 x system fan header
1 x addressable LED strip header
1 x RGB LED strip header
1 x M.2 Socket 3 connector
4 x SATA 6Gb/s connectors
1 x front panel header
1 x front panel audio header
1 x speaker header
1 x USB Type-C®header, with USB 3.2 Gen 1 support
1 x USB 3.2 Gen 1 header
1 x USB 2.0/1.1 header
1 x reset jumper
1 x Clear CMOS jumper
1 x chassis intrusion header
Back Panel
Connectors
1 x USB Type-C®port, with USB 3.2 Gen 2 support
1 x USB 3.2 Gen 2 Type-A port (red)
4 x USB 3.2 Gen 1 ports
2 x USB 2.0/1.1 ports
1 x DisplayPort
1 x HDMI 2.0 port
1 x Q-Flash Plus button
1 x RJ-45 port
2 x SMA antenna connectors (2T2R)
1 x optical S/PDIF Out connector
2 x audio jacks

- 10 -
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 speed control function is supported will depend on the cooler you
install.
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
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)
LAN bandwidth management software
Operating
System
Support for Windows 11 64-bit
Support for Windows 10 64-bit
Form Factor Mini-ITX Form Factor; 17.0cm x 17.0cm
* GIGABYTE reserves the right to make any changes to the product specications and product-related information without
prior notice.
Please visit GIGABYTE's website
for support lists of CPU, memory
modules, SSDs, and M.2 devices.
Please visit the Support\Utility List
page on GIGABYTE's website to
download the latest version of apps.

- 11 -
2-3 Installing the CPU and CPU Cooler
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.
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.
A. Note the CPU Orientation
Note the alignment keys on the motherboard CPU socket and the notches on the CPU.
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

- 12 -
B. Installing the CPU
Follow the steps below to correctly install the CPU into the motherboard CPU socket.
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.
w
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

- 13 -
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

- 14 -
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 two memory sockets and supports Dual Channel Technology. After the memory
is installed, the BIOS will automatically detect the specications and capacity of the memory. Enabling Dual
Channel memory mode will double the original memory bandwidth.
The two memory sockets are divided into two channels and each channel has one memory socket as following:
Channel A: DDR4_A1
Channel B: DDR4_B1
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 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 DDR4_A1
socket.
DDR4_A1
DDR4_B1

- 15 -
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

- 16 -
2-6 Back Panel Connectors
USB 3.2 Gen 2 Type-A Port (Red)
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.
USB Type-C®Port, with USB 3.2 Gen 2 Support
The reversible USB 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cations. Use this port for USB devices.
USB 2.0/1.1 Port (Q-Flash Plus Port)
The USB port supports the USB 2.0/1.1 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 2.0/1.1 Port
The USB port supports the USB 2.0/1.1 specication. 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.
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 Master
Audio 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.
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.

- 17 -
Please visit GIGABYTE's website for details on conguring the audio software.
Line Out/Front Speaker Out
The line out jack.
Mic In/Rear Speaker Out
The Mic in jack.
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.
Audio Jack Congurations:
Jack Headphone/
2-channel 4-channel 5.1-channel 7.1-channel
Line Out/Front Speaker Out a a a
Mic In/Rear Speaker Out a a a a
Front Panel Line Out/Side Speaker Out a a
Front Panel Mic In/Center/Subwoofer
Speaker Out a
•You can change the functionality of an audio jack using the audio software.
•To congure 7.1-channel audio, you need to open the audio software and select Device advanced
settings > Playback Device to change the default setting rst.
Tighten the antennas to the antenna connectors and then aim the antennas correctly for better
signal reception.
SMA Antenna Connectors (2T2R)
Use this connector to connect an antenna.
Q-Flash Plus Button (Note)
Q-Flash Plus allows you to update the BIOS when your system is off (S5 shutdown state). Save the latest
BIOS on a USB thumb drive and plug it into the dedicated port, and then you can now ash the BIOS
automatically by simply pressing the Q-Flash Plus button. The QFLED will ash when the BIOS matching
and ashing activities start and will stop ashing when the main BIOS ashing is complete.
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.
(Note) To enable the Q-Flash Plus function, please navigate to the "Unique Features" page of GIGABYTE's
website for more information.
Speed LED Activity 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

- 18 -
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_2X4
2) ATX
3) CPU_FAN
4) SYS_FAN1
5) CPU_OPT
6) D_LED
7) LED_C
8) SATA3 4/5/6/7
9) M2A_CPU
10) F_PANEL
11) CI
12) SPEAKER
13) F_AUDIO
14) F_U32CG
15) F_U32
16) F_USB
17) RST
18) CLR_CMOS
19) BAT
9 17 10
12
7
2
15
16
18
14
8
31
11
13
19
6
45

- 19 -
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, rst make sure the power supply is turned
off and all devices are properly installed. The power connector possesses a foolproof design. Connect the
power supply cable to the power connector in the correct orientation.
The 12V power connector mainly supplies power to the CPU. If the 12V power connector is not connected,
the computer will not start.
To meet expansion requirements, it is recommended that a power supply that can withstand high
power consumption be used (500W or greater). If a power supply is used that does not provide the
required power, the result can lead to an unstable or unbootable system.
ATX:
Pin No. Denition Pin No. Denition
1 3.3V 13 3.3V
2 3.3V 14 -12V
3 GND 15 GND
4 +5V 16 PS_ON (soft On/Off)
5 GND 17 GND
6 +5V 18 GND
7 GND 19 GND
8 Power Good 20 NC
9 5VSB (stand by +5V) 21 +5V
10 +12V 22 +5V
11 +12V (Only for 2x12-pin
ATX)
23 +5V (Only for 2x12-pin ATX)
12 3.3V (Only for 2x12-pinATX) 24 GND (Only for 2x12-pinATX)
ATX_12V_2X4:
Pin No. Denition
1 GND (Only for 2x4-pin 12V)
2 GND (Only for 2x4-pin 12V)
3 GND
4 GND
5+12V (Only for 2x4-pin 12V)
6+12V (Only for 2x4-pin 12V)
7 +12V
8 +12V
ATX_12V_2X4
DEBUG
PORT
G.QBOFM
41
85
F_USB30 F_U
B_ 
F_  F_ 
 _ B
BS_ B
SB_ B
_S  S_ _ B _U _ B
 
 
S  
 
123
 
123
 
123
 
123
1
1
1
1
BSS
S
_S 
SSU
 
1 2 3  
 S3 BSSS

U
 __ 3
F_USB3F
S  _ S  _
S  _
SF
 
B_
B_
F _0
S S
_0F
_F
_
_
__B
 
U
S  _S
_ SF_
B 
USB0_B
B_
B_
F_USB3
 F_USB303

_

_3U
S_
_S
SS_F 
_
_
131
2412
ATX

- 20 -
•Be sure to connect fan cables to the fan headers to prevent your CPU and system from
overheating. Overheating may result in damage to the CPU or the system may hang.
•These fan headers are not conguration jumper blocks. Do not place a jumper cap on the headers.
3/4) CPU_FAN/SYS_FAN1 (Fan Headers)
All fan headers on this motherboard are 4-pin. Most fan headers possess a foolproof insertion design.
When connecting a fan cable, be sure to connect it in the correct orientation (the black connector wire is
the ground wire). The speed control function requires the use of a fan with fan speed control design. For
optimum heat dissipation, it is recommended that a system fan be installed inside the chassis.
CPU_FAN
SYS_FAN1
CPU_OPT
DEBUG PORT
G.QBOFM
1
5) CPU_OPT (Water Cooling CPU Fan Header)
The fan header is 4-pin and possesses a foolproof insertion design. 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.
Pin No. Denition
1 GND
2 Voltage Speed Control
3 Sense
4 PWM Speed Control
Pin No. Denition
1 GND
2 Voltage Speed Control
3 Sense
4 PWM Speed Control
Fan power
extension cable
Fan power
extension cable
1
1
Connector CPU_FAN SYS_FAN1 CPU_OPT
Maximum Current 2A 2A 2A
Maximum Power 24W 24W 24W
F_USB30 F_U
B_ 
F_  F_ 
 _ B
BS_ B
SB_ B
_S  S_ _ B _U _ B
 
 
S  
 
123
 
123
 
123
 
123
1
1
1
1
BSS
S
_S 
SSU
 
1 2 3  
 S3 BSSS

U
 __ 3
F_USB3F
S  _ S  _
S  _
SF
 
B_
B_
F _0
S S
_0F
_F
_
_
__B
 
U
S  _S
_ SF_
B 
USB0_B
B_
B_
F_USB3
 F_USB303

_

_3U
S_
_S
SS_F 
_
_
F_USB30 F_U
B_ 
F_  F_ 
 _ B
BS_ B
SB_ B
_S  S_ _ B _U _ B
 
 
S  
 
123
 
123
 
123
 
123
1
1
1
1
BSS
S
_S 
SSU
 
1 2 3  
 S3 BSSS

U
 __ 3
F_USB3F
S  _ S  _
S  _
SF
 
B_
B_
F _0
S S
_0F
_F
_
_
__B
 
U
S  _S
_ SF_
B 
USB0_B
B_
B_
F_USB3
 F_USB303

_

_3U
S_
_S
SS_F 
_
_