B660M D3H DDR4

User's Manual
Rev. 1001

For more product details, please visit GIGABYTE's website.

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Copyright© 2022 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: 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:Table of Contents
Chapter 1 Product Introduction........................................................................................4
1-1
1-2

Motherboard Layout.......................................................................................... 4
Box Contents..................................................................................................... 5

Chapter 2 Hardware Installation......................................................................................6
2-1
2-2
2-3
2-4
2-5
2-6
2-7

Installation Precautions..................................................................................... 6
Product Specifications....................................................................................... 7
Installing the CPU and CPU Cooler................................................................ 11
Installing the Memory...................................................................................... 14
Installing an Expansion Card.......................................................................... 15
Back Panel Connectors................................................................................... 16
Internal Connectors......................................................................................... 18

Chapter 3 BIOS Setup...................................................................................................30
Chapter 4 Installing the Operating System and Drivers.................................................32
4-1
4-2

Operating System Installation......................................................................... 32
Drivers Installation........................................................................................... 33

Chapter 5 Appendix.......................................................................................................34
5-1

Configuring a RAID Set................................................................................... 34

Regulatory Notices..................................................................................................... 35
Contact Us................................................................................................................. 36-3-

Chapter 1
1-1

Product Introduction

Motherboard Layout
ATX_12V_2X4

KB_MS_USB20

CPU_FANATXSYS_FAN1VGA
HDMI

LGA1700

SYS_FAN3

DUAL_DP80

CODEC

USB 2.0 Hub

PCI

PCIEX4

M_BIOS

7
6

DDR4_B2

F_U32

60

SATA3

80

DDR4_B1

PCIEX1
iTE®
Super I/O

DDR4_A1

PCIEX16

DDR4_A2

60

Intel® B660
BAT

PCIe to PCI
BridgeQFLASH_PLUS
QFLED
RST

SPDIF_O

THB_C2110

AUDIO

THB_C1

B660M D3H DDR4
M2A_CPUIntel ®
2.5 GbE LAN

M2P_SB

U32_LAN

SATA3

5
4

SYS_FAN2

U32G2CU32G2

RST_SW
F_AUDIO

LPT
COM

LED_C
D_LED

F_USB1
F_USB2Temperature sensor-4-

CLR_CMOSSPI_TPMF_PANEL1-2

Box Contents
55

B660M D3H DDR4 motherboard

55

User's Manual

55

Two SATA cables

55

M.2 screws

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.

-5-

Chapter 2
2-1

Hardware Installation

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 orwarranty 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, makesure 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 anelectrostatic shielding container.
•• Before connecting or unplugging the power supply cable from the motherboard, make surethe 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 themotherboard circuit or its components.
•• Make sure there are no leftover screws or metal components placed on the motherboard orwithin 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 systemcomponents 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.
•• If you use an adapter, extension power cable, or power strip, ensure to consult with its
installation and/or grounding instructions.

-6-

2-2

Product Specifications
CPU LGA1700 socket: Support for 13th Generation Intel® Core™ Processors and12th 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 4 x DDR4 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 Profile (XMP) memory modules(Go to GIGABYTE's website for the latest supported memory speeds and memory
modules.) Integrated Graphics Processor-Intel® HD Graphics support:- 1 x D-Sub port, supporting a maximum resolution of 1920x1200@60 Hz-	1 x HDMI port, supporting a maximum resolution of 4096x2160@60 Hz

OnboardGraphics

-

Audio

LAN







* Support for HDMI 2.0 version and HDCP 2.3.

1 x DisplayPort, supporting a maximum resolution of 4096x2304@60 Hz* Support for DisplayPort 1.2 version and HDCP 2.3

1 x DisplayPort, supporting a maximum resolution of 4096x2304@60 Hz* Support for DisplayPort 1.2 version(Graphics specifications may vary depending on CPU support.)
Support for up to 4 displays at the same time
Realtek® Audio CODEC
High Definition Audio
2/4/5.1/7.1-channel
Support for S/PDIF Out

 Intel® 2.5GbE LAN chip (2.5 Gbps/1 Gbps/100 Mbps)

Expansion Slots  1 x PCI Express x16 slot, running at x16 (PCIEX16)*	For optimum performance, if only one PCI Express graphics card is to be installed,
be sure to install it in the PCIEX16 slot.

(The PCIEX16 slot conforms to PCI Express 4.0 standard.) 1 x PCI Express x16 slot, running at x4 (PCIEX4)
 1 x PCI Express x1 slot
(The PCIEX4 and PCIEX1 slots conform to PCI Express 3.0 standard.) 1 x PCI slot

-7-

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 PCIe 4.0 x4/x2 SSD
support) (M2P_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
connector supported by the Chipset.

USB

Internal
Connectors

 Chipset:- 1 x USB Type-C® port on the back panel, with USB 3.2 Gen 2 support- 1 x USB 3.2 Gen 2 Type-A port (red) on the back panel-	4 x USB 3.2 Gen 1 ports (2 ports on the back panel, 2 ports available throughthe internal USB header)- 2 x USB 2.0/1.1 ports on the back panel
 Chipset+USB 2.0 Hub:-	4 x USB 2.0/1.1 ports available through the internal USB headers 1 x 24-pin ATX main power connector
 1 x 8-pin ATX 12V power connector
 1 x CPU fan header 3 x system fan headers 1 x addressable LED strip header 1 x RGB LED strip header 2 x M.2 Socket 3 connectors
 4 x SATA 6Gb/s connectors
 1 x front panel header 1 x front panel audio header 1 x USB 3.2 Gen 1 header 2 x USB 2.0/1.1 headers 1 x S/PDIF Out 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 serial port header 1 x parallel port header 1 x reset button
 1 x Q-Flash Plus button
 1 x reset jumper 1 x Clear CMOS jumper-8-Back Panel
Connectors












I/O Controller

 iTE® I/O Controller Chip

Hardware
Monitor







BIOS




Unique Features 

1 x PS/2 keyboard/mouse port
1 x USB Type-C® port, with USB 3.2 Gen 2 support
1 x USB 3.2 Gen 2 Type-A port (red)2 x USB 3.2 Gen 1 ports
2 x USB 2.0/1.1 ports
1 x D-Sub port
1 x HDMI port
2 x DisplayPorts
1 x RJ-45 port
6 x audio jacks
Voltage detection
Temperature detection
Fan speed detection
Fan fail warning
Fan speed control*	Whether the fan speed control function is supported will depend on the fan you install.

1 x 256 Mbit flash
Use of licensed AMI UEFI BIOSPnP 1.0a, DMI 2.7, WfM 2.0, SM BIOS 2.7, ACPI 5.0
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 specifications.

- @BIOS- EasyTune- RGB Fusion- Smart Backup- System Information Viewer Support for Q-Flash Plus Support for Q-Flash Support for Xpress Install-9-

Bundled
SoftwareOperating
System






Norton® Internet Security (OEM version)
LAN bandwidth management software
Support for Windows 11 64-bit
Support for Windows 10 64-bit

Form Factor

 Micro ATX Form Factor; 24.4cm x 24.4cm*	GIGABYTE reserves the right to make any changes to the product specifications and product-related information without
prior notice.

Please visit GIGABYTE's website
for support lists of CPU, memory
modules, SSDs, and M.2 devices.

- 10 -

Please visit the Support\Utility List
page on GIGABYTE's website to
download the latest version of apps.

2-3Installing the CPU and CPU Cooler
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 damageof 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 thestandard 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.

A. Note the CPU Orientation

Note the alignment keys on the motherboard CPU socket and the notches on the CPU.
Alignment Key

LGA1700 CPU Socket
Triangle Pin One Markingof the CPU Socket

Alignment Key
Notch

LGA1700 CPU
Triangle Pin One Marking
on the CPU
Notch

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.

Please visit GIGABYTE's website for details on hardware installation.
- 11 -

B. Installing the CPU

Follow the steps below to correctly install the CPU into the motherboard CPU socket.

Finger Tabuj
Gently press the CPU socket lever handle
down and away from the socket.
kCompletely lift up the CPU socket locking lever.
l
Use the finger tab on the side of themetal load plate to lift open the metalload plate with the plastic protective coverattached to it.

l

k
j

v

Pin OneHold the CPU with your fingers by the edges.
Align the CPU pin one marking (triangle) withthe pin one corner of the CPU socket (or you
may align the CPU notches with the socketalignment keys) and gently insert the CPU
into position.

w
Make sure the CPU is properly installed andthen close the load plate. The plastic protective 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 coverwhen the CPU is not installed to protect the
CPU socket.

jkl

Do not force to engage the CPU socket locking lever when the CPU is not installed correctlyas this would damage the CPU and CPU socket.
- 12 -

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
Apply an even and thin layer of thermal
grease on the surface of the installed CPU.

j

v

k

k

Place the cooler atop the CPU, aligning thefour push pins through the pin holes on themotherboard. Push down on the push pins
diagonally.

jw
Finally, attach the power connector of
the CPU cooler to the CPU fan header(CPU_FAN) on the motherboard.

CPU_FAN- 13 -

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 thememory 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 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 memory sockets are divided into two channels and each channel has two memory sockets as following:Channel
A: DDR4_A1, DDR4_A2
Channel
B: DDR4_B1, DDR4_B2* Recommended Dual Channel Memory Configuration:
DDR4_A1

DDR4_A2

DDR4_B1

DDR4_B2

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.

DDR4_A1
DDR4_A2
DDR4_B1
DDR4_B2

When installing a single memory module, we recommend that you install it in the DDR4_A2
socket.

- 14 -

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 camewith 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 yourexpansion card(s).
7. Install the driver provided with the expansion card in your operating system.

PCIEX16 Slot

- 15 -

2-6

Back Panel Connectors

USB 2.0/1.1 Port (Q-Flash Plus Port)

The USB port supports the USB 2.0/1.1 specification. Use this port for USB devices. Before using Q-Flash
Plus (Note), make sure to insert the USB flash drive into this port first.

USB 2.0/1.1 Port

The USB port supports the USB 2.0/1.1 specification. Use this port for USB devices.

PS/2 Keyboard/Mouse PortUse this port to connect a PS/2 mouse or keyboard.

D-Sub PortThe D-Sub port supports a 15-pin D-Sub connector and supports a maximum resolution of 1920x1200@60 Hz(the actual resolutions supported depend on the monitor being used). Connect a monitor that supports
D-Sub connection to this port.

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.

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.

DisplayPort

DisplayPort delivers high quality digital imaging and audio, supporting bi-directional audio transmission.
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 dependon the monitor being used.
•• To set up a quad-display configuration,you must install motherboard drivers in the operating
system first•• After installing the HDMI/DisplayPort device, make sure to set the default sound playback
device to HDMI/DisplayPort. (The item name may differ depending on your operating system.)USB 3.2 Gen 2 Type-A Port (red)The USB 3.2 Gen 2 port supports the USB 3.2 Gen 2 specification and is compatible to the USB 3.2 Gen 1
and USB 2.0 specification. 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 specification and is compatible to the USB 3.2 Gen 1
and USB 2.0 specifications. Use this port for USB devices.
(Note)

To enable the Q-Flash Plus function, please navigate to the "Unique Features" page of GIGABYTE's
website for more information.
- 16 -

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.
Speed LED

Activity LED

Speed LED:

State
Green
OrangeOff

LAN Port

Activity LED:

Description
2.5 Gbps data rate
1 Gbps data rate
100 Mbps data rate

State
Blinking
On

Description
Data transmission or receiving is occurring
No data transmission or receiving is occurring

USB 3.2 Gen 1 Port

The USB 3.2 Gen 1 port supports the USB 3.2 Gen 1 specification and is compatible to the USB 2.0
specification. Use this port for USB devices.

Center/Subwoofer Speaker Out (Orange)

Use this audio jack to connect center/subwoofer speakers.

Rear Speaker Out (Black)Use this audio jack to connect rear speakers.

Side Speaker Out (Gray)

Use this audio jack to connect side speakers.

Line In (Blue)The line in jack. Use this audio jack for line in devices such as an optical drive, walkman, etc.

Line Out/Front Speaker Out (Green)
The line out jack.

Mic In (Pink)

The Mic in jack.
Audio Jack Configurations:
Jack

Headphone/
2-channel

4-channel

Center/Subwoofer Speaker Out
Rear Speaker Outa

5.1-channel

7.1-channel

a

a

a

a

Side Speaker OutaLine In
Line Out/Front Speaker Out

a

a

a

a

Mic InYou can change the functionality of an audio jack using the audio software.
•• When removing the cable connected to a back panel connector, first remove the cable fromyour 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 sideto prevent an electrical short inside the cable connector.

Please visit GIGABYTE's website for details on configuring the audio software.

- 17 -

2-7

Internal Connectors
4

1

3

2

4
7
11

8

7

8

7

20

21
16

17
10

14

15

6 5

12

13 19 18

91)

ATX_12V_2X4

12)

F_USB1/F_USB2

2)

ATX

13)

SPI_TPM3)

CPU_FAN

14)

COM

4)

SYS_FAN1/2/3

15)

LPT

5)

LED_C

16)

THB_C1/THB_C2

6)

D_LED

17)

SPDIF_O

7)

SATA3 4/5/6/7

18)

CLR_CMOS

8)

M2A_CPU/M2P_SB

19)

RST_SW/RST9)

F_PANEL

20)

BAT

10)

F_AUDIO

21)

QFLASH_PLUS

11)

F_U32

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.
- 18 -

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 thepower 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 highpower consumption be used (500W or greater). If a power supply is used that does not provide therequired power, the result can lead to an unstable or unbootable system.

5

8

1

4
ATX_12V_2X4

ATX_12V_2X4:

Pin No.
1
2
3
4

Definition
Pin No.
GND (Only for 2x4-pin 12V)
5
GND (Only for 2x4-pin 12V)
6
GND
7
GND
8

Definition+12V (Only for 2x4-pin 12V)
+12V (Only for 2x4-pin 12V)
+12V
+12V

Definition
Pin No.
3.3V
13
3.3V
14
GND
15
+5V
16
GND
17
+5V
18
GND
19
Power Good
20
5VSB (stand by +5V)
21
+12V
22
+12V (Only for 2x12-pin 23
ATX)
3.3V (Only for 2x12-pin 24
ATX)

Definition
3.3V
-12V
GND
PS_ON (soft On/Off)
GND
GND
GND
NC
+5V
+5V
+5V (Only for 2x12-pin
ATX)
GND (Only for 2x12-pin
ATX)

ATX:
12

24

1

13
ATX

Pin No.
1
2
3
4
5
6
7
8
9
10
11
12

- 19 -

3/4) CPU_FAN/SYS_FAN1/2/3 (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.

1

Pin No.
12
34

CPU_FAN1

1
SYS_FAN1

Definition
GND
Voltage Speed Control
Sense
PWM Speed Control

SYS_FAN2/SYS_FAN3

Connector

CPU_FANSYS_FAN1~3

Maximum Current

2A

2A

Maximum Power

24W

24W

•• Be sure to connect fan cables to the fan headers to prevent your CPU and system fromoverheating. 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) LED_C (RGB LED Strip Header)

The header can be used to connect a standard 5050 RGB LED strip (12V/G/R/B), with maximum power
rating of 2A (12V) and maximum lengthDEBUG
of 2m.
PORT

Pin No.
12341Connect your RGB LED strip to the header. The power pin (marked with atriangle on the plug) of the LED strip must be connected to Pin 1 (12V) of
this header. Incorrect connection may lead to the damage of the LED strip.

Definition
12V
G
R
B

RGB LED Strip

1
12V

For how to turn on/off the lights of the LED strip, please navigate to the "Unique Features" pageof GIGABYTE's website.
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.
- 20 -

6) D_LED (Addressable LED Strip Header)S _The header can be used to connect a standard 5050 addressable LED strip, with maximum power ratingof 5A (5V) and maximum number of 1000 LEDs.

Pin No.
1
2
3
4

S S_F

_

Addressable LED
Strip

_B

S F_

Connect your addressable LED strip to the header. The power pin (marked
with a triangle on the plug) of the LED strip must be connected to Pin 1 of
the addressable LED strip header. Incorrect connection may lead to thedamage of the LED strip.
_B

1

For how to turn on/off the lights of the LED strip, please navigate to the "Unique Features" pageof GIGABYTE's website.

F_USB3_B_

F_USB30 3

F_

F_USB3 F

1Definition
V (5V)
Data
No PinGND

B_

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.

DEBUG
PORT

DEBUG
PORT

_

The SATA connectors conform to SATA 6Gb/s standard and are compatible with SATA 3Gb/s and SATA 1.5Gb/sstandard. Each SATA connector supports a single SATA device. The Intel® Chipset supports RAID 0, RAID 1,
RAID 5, and RAID 10. Please navigate to the "Configuring a RAID Set" page of GIGABYTE's website for
instructions on configuring a RAID array.
_S

7

Pin No.
1
2
3
4
5
6
7

S

7

S F

SATA3

5

4

G.QBOFM
B_

1

1

7

1

7

1

Definition
GND
TXP
TXN
GND
RXN
RXP
GND

7
6

B_

SATA3

USB 0_ B__

7) SATA3 4/5/6/7 (SATA 6Gb/s Connectors)

U

_

_
S

- 21 -S_S

To enable hot-plugging for the SATA ports, please navigate to the "BIOS Setup" page of GIGABYTE's
website and search for "SATA Configuration" for more information.

_ F
_

_0

F

_0

F

8) M2A_CPU/M2P_SB (M.2 Socket 3 Connectors)

The M.2 connectors on the motherboard support only M.2 PCIe SSDs.
_

S F_
M2A_CPU
110

S S_F
S F_

B

S S_F

B

USB3

USB3

_

_

80

60

80

60

B_
M2P_SB

B_
F

_3

U

Follow the steps below to correctly install an M.2 SSD in the M.2 connector.
Step 1:F_3U
Locate the proper mounting hole based on the length of your M.2 SSD drive. If needed, move the standoff
to the desired mounting hole. Insert the M.2 SSD into the M.2 connector at an angle.
Step 2:
F_USB30 3
Press the M.2 SSD down and then use the included screw to secure it in the connector.
* Types of M.2 SSDs supported by each M.2 connector:
M.2 PCIe x4 SSD

M.2 PCIe x2 SSD

M.2 SATA SSD

M2A_CPUaar

M2P_SBaar

F_USB30 3- 22 -

9) F_PANEL (Front Panel Header)

Connect the power switch, reset switch, speaker, chassis intrusion switch/sensor and system status indicatoron the chassis to this header according to the pin assignments below. Note the positive and negative pins
before connecting the cables.
Speaker

SPEAK+NC
NC
SPEAK-

Power Switch

PLED+
PLEDPW+
PW-

Power LED

Hard Drive Reset
Activity LED Switch

PWR_LED+PWR_LEDPWR_LED-

20
19
HD+
HDRESRES+
CICI+

2
1

Power LED
Chassis Intrusion
Header•• PLED/PWR_LED (Power LED):
Connects to the power status indicator on the chassis front panel. The LED
System Status LED
is on when the system is operating. The LED is off when the system is in S3/S0On
S4 sleep state or powered off (S5).
S3/S4/S5
Off•• PW (Power Switch):
Connects to the power switch on the chassis front panel. You may configure the way to turn off yoursystem using the power switch (please navigate to the "BIOS Setup" page of GIGABYTE's website andsearch for "Soft-Off by PWR-BTTN" for more information).
•• SPEAK (Speaker):
Connects to the speaker on the chassis front panel. The system reports system startup status by issuinga beep code. One single short beep will be heard if no problem is detected at system startup.
•• HD (Hard Drive Activity LED):
Connects to the hard drive activity LED on the chassis front panel. The LED is on when the hard drive
is reading or writing data.
•• RES (Reset Switch):
Connects to the reset switch on the chassis front panel. Press the reset switch to restart the computer
if the computer freezes and fails to perform a normal restart.
•• CI (Chassis Intrusion Header):Connects to the chassis intrusion switch/sensor on the chassis that can detect if the chassis cover has
been removed. This function requires a chassis with a chassis intrusion switch/sensor.
•• NC: No connection.

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 arematched correctly.
- 23 -

10) F_AUDIO (Front Panel Audio Header)

The front panel audio header supports High Definition audio (HD). You may connect your chassis front
panel audio module to this header. Make sure the wire assignments of the module connector match thepin assignments of the motherboard header. Incorrect connection between the module connector and themotherboard header will make the device unable to work or even damage it.

9

Pin No.
1
2
3
4
5
6
7
8
9
10

1

F_

F_ U
10

2

Definition
MIC L
GND
MIC R
NC
Head Phone R
MIC Detection
SENSE_SEND
No PinHead Phone L
Head Phone Detection

F_

B SS

B_

1

Some chassis provide a front panel audio module that has separated connectors on each wire
instead of a single plug. For information about connecting the front
panel audio module that has_Sdifferent wire assignments, please contact the chassis manufacturer.
1

1

1

S
1 2 3

F_ U

F_

1 2 3

11) F_U32 (USBF_USB30
3.2 Gen 1 Header)

1 2 3

1 2 3

The header conforms to USB 3.2 Gen 1 and USB 2.0 specification and can provide two USB ports. For
purchasing the optional 3.5" front panel that provides two USB 3.2 Gen 1 ports, please contact the local
dealer.

S

10

Pin No.
11
12
13
14
15
16
17
18
_ _ 19 3
20

Definition
D2+
D2GND
B SS
SSTX2+
SSTX2GNDSSRX2+
SSRX2VBUS
No Pin

1

S F

_

1 2 3

F_USB

1 2 3

_

_S

S

1 2 3

S

Definition
VBUS
SSRX1SSRX1+GND
SSTX1SSTX1+
GND
D1D1+
NC

1 2 3

B SS

11

Pin No.
1
2
3
4B_
5
6
7
U8
9
10

1

3

1

1

S

20

1

S

S

- 24 B_

S

_S

_

_

_B

_

12) 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.

_S

_

B
9
10

Pin No.
1
2
3
4
5
6
7
8
9
10

1
2

S B_
B

_ S

B S_
B
Definition

Power (5V)
Power (5V)
USB DXUSB DYUSB DX+
USB DY+GND
GND
No PinNC

S__
B•• Do not plug the IEEE 1394 bracket (2x5-pin) cable into the USB 2.0/1.1 header.
•• Prior to installing the USB bracket, be sure to turn off your computer and unplug the power cord
_ Ufrom the power outlet to prevent
damage to the USB bracket.
_ _

_

3

F

B

F_USB3 F

13) SPI_TPM (Trusted Platform Module Header)

You may connect an SPI TPM (Trusted Platform Module) to this header.

_

_

_B

S _
11
12

1
2

_

S F_

B

S S_F

B_

- 25 -F

Pin No.
1
2
3
4
5
6
7
8
9
10
11
12

_0

Definition
Data Output
Power (3.3V)
No PinNC
Data Input
CLK
Chip Select
GND
IRQ
NC
NC
RST

_ F

_0

F

14) COM (Serial Port Header)

The COM header can provide one serial port via an optional COM port cable. For purchasing the optional
COM port cable, please contact the local dealer.

9
10

1
2

DEBUG
PORT

Pin No.
1
2
3
4
5
6
7
8
9
10

Definition
NDCDNSIN
NSOUT
NDTRGNDNDSRNRTSNCTSNRINo Pin

15) 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.
1
2
3
4
5
6
7
8
9
10
11
12
13

- 26 -

25

1

26

2

Definition
STBAFDPD0ERRPD1
INITPD2
SLINPD3
GND
PD4
GND
PD5

Pin No.
14
15
16
17
18
19
20
21
22
23
24
25
26

Definition
GND
PD6
GND
PD7
GND
ACKGND
BUSY
GND
PE
No PinSLCTGND

F_USB30 3

F_USB3B_16) THB_C1/THB_C2 (Thunderbolt™ Add-in Card Connectors)_

B_

USB 0_ B

The connectors are used to connect to a GIGABYTE Thunderbolt™ add-in card.
F

_3

U

S F

B_

1

B

S S_F

THB_C2_S

THB_C1

S

1

B_

USB 0_ B

S F_

_
_

_

B

F_USB3

B_

_

_

B_

_

_0

F

B

F_USB3F

F_USB30 3

S S_F

Supports a Thunderbolt™ add-in card.

_B

_ F

S F_

S S_F

17) SPDIF_O (S/PDIF Out Header)

_

_B

S _

_

_

B_

F_USB30 3This header supports S/PDIF digital output, which allows you to connect a S/PDIF digital audio cable tooutput digital audio from your motherboard to the supported audio devices. For information about connecting
the digital audio cable, carefully read the manual for your audio devices.
_

_0
_ _

3

Definition
5VDUALNo PinSPDIFO
GND

U

Pin No.
1
2
3
4

S _

F_USB3 F
1

_3

_ U
_
B

F

S_
_
B

U
_0

S B_
B

U

_ F

_0

1 2 3

_ S
_3

F

- 27 -

1 2 3

_
B

B S_
B

18) 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 (please navigate to the "BIOS Setup" page of GIGABYTE's
website for more information).

19) RST_SW/RST (Reset Button/Reset Jumper)

The reset button (RST_SW) allows users to quickly turn on/off the computer in an open-case environment
when they want to change hardware components or conduct hardware testing. The reset jumper (RST)
can connect 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.

1
RST_SW

RST

RSTPin No.
1
2

Definition
Reset
GND

RST_SW

The reset button (RST_SW)/rest jumper (RST) provides you with several functions to use. To remap
the button to perform different tasks, please navigate to the "BIOS Setup" page of GIGABYTE's
website and search for "RST_SW (MULTIKEY)" for more information.

- 28 -

20) 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. Damage to your devices may occur 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.

21) QFLASH_PLUS (Q-Flash Plus Button)

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 flash the BIOS
automatically by simply pressing the Q-Flash Plus button. The QFLED will flash when the BIOS matching
and flashing activities start and will stop flashing when the main BIOS flashing is complete.

QFLED

QFLASH_PLUS

To enable the Q-Flash Plus function, please navigate to the "Unique Features" page of GIGABYTE's
website for more information.

- 29 -

Chapter 3

BIOS Setup

BIOS (Basic Input and Output System) records hardware parameters of the system in the CMOS on themotherboard. 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 tokeep 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.
For instructions on using the Q-Flash and @BIOS utilities, please navigate to the "Unique Features" page of
GIGABYTE's website and search for "BIOS Update Utilities."•• 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 withcaution. Inadequate BIOS flashing may result in system malfunction.
•• It is recommended that you not alter the default settings (unless you need to) to prevent systeminstability 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 introductions of the battery/clear CMOS jumper in Chapter 2 or navigate to the "BIOS
Setup" page of GIGABYTE's website and search for "Load Optimized Defaults" for how to clear
the CMOS values.

Please visit GIGABYTE's website for details on configuring BIOS Setup.
- 30 -Startup Screen:
The following startup Logo screen will appear when the computer boots.

Function Keys

Function Keys:<DEL>: BIOS SETUP\Q-FLASH
Press the <Delete> key to enter BIOS Setup or to access the Q-Flash utility in BIOS Setup.
<F12>: BOOT MENU
Boot Menu allows you to set the first boot device without entering BIOS Setup. In Boot Menu, use the up
arrow key <h> or the down arrow key <i> to select the first boot device, then press <Enter> to accept.
The system will boot from the device immediately.
Note: The setting in Boot Menu is effective for one time only. After system restart, the device boot order
will still be based on BIOS Setup settings.
<END>: Q-FLASH
Press the <End> key to access the Q-Flash utility directly without having to enter BIOS Setup first.

- 31 -

Chapter 44-1

Installing the Operating System and Drivers

Operating System Installation

With the correct BIOS settings, you are ready to install the operating system.
If you want to install an operating system on a RAID volume, you need to install the Intel® RST VMD Controller
driver first during the OS installation process. Refer to the steps below:
Step 1:
Go to GIGABYTE's website, browse to the motherboard model's web page, download the Intel SATA Preinstalldriver file on the Support\Download\SATA RAID/AHCI page, unzip the file and copy the files to your USB
thumb drive.
Step 2:
Boot from the Windows setup disc and perform standard OS installation steps. When the screen requesting you
to load the driver appears, select Browse.
Step 3:Insert the USB thumb drive and then browse to the location of the driver. When a screen as shown below
appears, select Intel RST VMD Controller 467F and click Next to load the driver and continue the OS installation.

- 32 -

4-2

Drivers Installation

After you install the operating system, a dialog box will appear on the bottom-right corner of the desktop asking
if you want to download and install the drivers and GIGABYTE applications via APP Center. Click Install toproceed with the installation. (In BIOS Setup, make sure Settings\IO Ports\APP Center Download & Install
Configuration\APP Center Download & Install is set to Enabled.)

When the End User License Agreement dialog box appears, press <Accept> to install APP Center. On the APPCenter screen, select the drivers and applications you want to install and click Install.

Before the installation, make sure the system is connected to the Internet.
Please visit GIGABYTE's website formore software information.

- 33 -

Please visit GIGABYTE's website formore troubleshooting information.

Chapter 5
5-1

Appendix

Configuring a RAID Set

RAID Levels
Minimum
Number of Hard
DrivesArray Capacity
Fault Tolerance

RAID 0RAID 1

RAID 5

RAID 10

≥2

2

≥3

4

(Number of hard
drives -1) * Size ofthe smallest drive
Yes(Number of hard
drives/2) * Size of thesmallest drive
Yes

Number of hard
drives * Size of thesmallest driveNo

Size of the smallest
drive
Yes

Before you begin, please prepare the following items:

This motherboard supports SATA RAID 0, RAID 1, RAID 5, and RAID 10. Prepare the correct number of hard
drives as indicated in the table above before configuring a RAID array.
•• SATA hard drives. To ensure optimal performance, it is recommended that you use two hard drives withidentical model and capacity.
•• Windows setup disc.
•• An Internet connected computer.
•• A USB thumb drive.

Please visit GIGABYTE's website for details on configuring a RAID array.
- 34 -

Regulatory Notices
United States of America, Federal Communications Commission Statement
Supplier's Declaration of Conformity
47 CFR § 2.1077 Compliance Information
Product Name: Motherboard
Trade Name: GIGABYTE
Model Number: B660M D3H DDR4
Responsible Party – U.S. Contact Information: G.B.T. Inc.
Address: 17358 Railroad street, City Of Industry, CA91748
Tel.: 1-626-854-9338
Internet contact information: https://www.gigabyte.com
FCC Compliance Statement:This device complies with Part 15 of the FCC Rules, Subpart B, Unintentional Radiators.
Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2)this device must accept any interference received, including interference that may cause undesired operation.

This equipment has been tested and found to comply with the limits for aClass B digital device, pursuant to Part 15 of the FCC Rules. These limits
are designed to provide reasonable protection against harmful interference
in a residential installation. This equipment generates, uses and canradiate radio frequency energy and, if not installed and used in accordancewith manufacturer's instructions, may cause harmful interference to radio
communications. However, there is no guarantee that interference will
not occur in a particular installation. If this equipment does cause harmfulinterference to radio or television reception, which can be determined byturning the equipment off and on, the user is encouraged to try to correct theinterference by one or more of the following measures:•• Reorient or relocate the receiving antenna.
•• Increase the separation between the equipment and receiver.
•• Connect the equipment to an outlet on a circuit different from that to which
the receiver is connected.
•• Consult the dealer or an experienced radio/TV technician for help.
Canadian Department of Communications Statement
This digital apparatus does not exceed the Class B limits for radio noise
emissions from digital apparatus set out in the Radio Interference Regulationsof the Canadian Department of Communications. This class B digital apparatus
complies with Canadian ICES-003.
Avis de conformité à la réglementation d'Industrie Canada
Cet appareil numérique de la classe B est conforme à la norme NMB-003 du
Canada.
European Union (EU) CE Declaration of Conformity
This device complies with the following directives: Electromagnetic
Compatibility Directive 2014/30/EU, Low-voltage Directive 2014/35/EU,
RoHS directive (recast) 2011/65/EU & the 2015/863 Statement. This producthas been tested and found to comply with all essential requirements of the
Directives.
European Union (EU) RoHS (recast) Directive 2011/65/EU & the European
Commission Delegated Directive (EU) 2015/863 Statement
GIGABYTE products have not intended to add and safe from hazardous
substances (Cd, Pb, Hg, Cr+6, PBDE, PBB, DEHP, BBP, DBP and DIBP).
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.
European Union (EU) Community Waste Electrical & Electronic
Equipment (WEEE) Directive Statement
GIGABYTE will fulfill the national laws as interpreted from the 2012/19/EU
WEEE (Waste Electrical and Electronic Equipment) (recast) directive. The
WEEE Directive specifies the treatment, collection, recycling and disposal ofelectric and electronic devices and their components. Under the Directive, usedequipment 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 withother waste. Instead, the device should be taken to the waste
collection centers for activation of the treatment, collection,
recycling and disposal procedure.

Battery Information
European Union—Disposal and recycling information
GIGABYTE Recycling Program (available in some regions)This symbol indicates that this product and/or battery should not be disposedof with household waste. You must use the public collection system to return,recycle, or treat them in compliance with the local regulations.
End of Life Directives-Recycling
The symbol shown below is on the product or on its packaging,which indicates that this product must not be disposed of withother waste. Instead, the device should be taken to the waste
collection centers for activation of the treatment, collection,
recycling and disposal procedure.
Déclaration de Conformité aux Directives de l'Union européenne (UE)Cet appareil portant la marque CE est conforme aux directives de l'UE
suivantes: directive Compatibilité Electromagnétique 2014/30/UE, directive
Basse Tension 2014/35/UE et directive RoHS II 2011/65/UE. La conformité à
ces directives est évaluée sur la base des normes européennes harmoniséesapplicables.
European Union (EU) CE-Konformitätserklärung
Dieses Produkte mit CE-Kennzeichnung erfüllen folgenden EU-Richtlinien:
EMV-Richtlinie 2014/30/EU, Niederspannungsrichtlinie 2014/30/EU und RoHSRichtlinie 2011/65/EU erfüllt. Die Konformität mit diesen Richtlinien wird unter
Verwendung der entsprechenden Standards zurEuropäischen Normierung
beurteilt.
CE declaração de conformidade
Este produto com a marcação CE estão em conformidade com das seguintes
Diretivas UE: Diretiva Baixa Tensão 2014/35/EU; Diretiva CEM 2014/30/EU;
Diretiva RSP 2011/65/UE. A conformidade com estas diretivas é veriﬁcadautilizando as normas europeias harmonizadas.
CE Declaración de conformidad
Este producto que llevan la marca CE cumplen con las siguientes Directivasde la Unión Europea: Directiva EMC (2014/30/EU), Directiva de bajo voltaje(2014/35/EU), Directiva RoHS (recast) (2011/65/EU). El cumplimiento de estas
directivas se evalúa mediante las normas europeas armonizadas.
Dichiarazione di conformità CE
Questo prodotto è conforme alle seguenti direttive: Direttiva sulla compatibilità
elettromagnetica 2014/30/UE, Direttiva sulla bassa tensione 2014/35/UE,
Direttiva RoHS (rifusione) 2011/65/UE. Questo prodotto è stato testato e
trovato conforme a tutti i requisiti essenziali delle Direttive.

D33006 RoHS

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 ofenvironmentally safe recycling.

- 35 -

Contact Us
GIGA-BYTE TECHNOLOGY CO., LTD.
Address: No.6, Baoqiang Rd., Xindian Dist., New Taipei City 231
TEL: +886-2-8912-4000, FAX: +886-2-8912-4005
Tech. and Non-Tech. Support (Sales/Marketing) : https://esupport.gigabyte.com
WEB address (English): https://www.gigabyte.com
WEB address (Chinese): https://www.gigabyte.com/tw•• GIGABYTE eSupport
To submit a technical or non-technical (Sales/Marketing) question, please link to:https://esupport.gigabyte.com- 36 -