Gigabyte B660M DS3H AX DDR4 User manual

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B660M DS3H AX DDR4
B660M DS3H DDR4
User's Manual
Rev. 1101
B660M DS3H AX DDR4 B660M DS3H DDR4

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.
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 Box Contents.................................................................................................... 5
Chapter 2 Hardware Installation .....................................................................................6
2-1 Installation Precautions.................................................................................... 6
2-2 Product Specications...................................................................................... 7
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 ..................................................................................................30
Chapter 4 Installing the Operating System and Drivers................................................32
4-1 Operating System Installation ........................................................................ 32
4-2 Drivers Installation.......................................................................................... 33
Chapter 5 Appendix ......................................................................................................34
5-1 Conguring a RAID Set.................................................................................. 34
Regulatory Notices.................................................................................................... 35
Contact Us ................................................................................................................ 38

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1-1 Motherboard Layout
Chapter 1 Product Introduction
KB_MS_USB
CPU_FAN
SYS_FAN1 ATX
B660M DS3H AX DDR4
B660M DS3H DDR4
F_AUDIO
SPDIF_O
AUDIO
BAT
ATX_12V_2X4
CODEC
CLR_CMOS RST
U32_LAN
PCIEX16
PCIEX1_1
iTE®
Super I/O
Realtek®
2.5GbE LAN
LED_C F_USB2 SYS_FAN3
SPI_TPM F_PANEL
SATA3 5 4
SATA3 7
6
VGA k
HDMI
80
60
60
80
M_BIOS
LPT k
QFLASH_PLUS
RST_SW
F_U32
U32G2C
U32G2
M2P_SB
M2A_CPU
DDR4_A2 DDR4_A1 DDR4_B1 DDR4_B2
D_LED
M2_WIFIj
SYS_FAN2
F_USB1
QFLED
PCIEX1_2
DUAL_DP
COM k
USB 2.0 Hub
LGA1700
Intel®
B660
Temperature sensor
jOnly for B660M DS3H AX DDR4.
kOnly for B660M DS3H DDR4.

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1-2 Box Contents
5B660M DS3H AX DDR4 or B660M DS3H DDR4 motherboard
5User's Manual
5I/O Shield
5Two SATA cables
5One antennaj
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.
jOnly for B660M DS3H AX DDR4.

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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

- 7 -
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 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 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 D-Sub port, supporting a maximum resolution of 1920x1200@60 Hz k
- 1 x HDMI port, supporting a maximum resolution of 4096x2160@60 Hz
* 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 specications may vary depending on CPU support.)
Support for up to 3 displays at the same time j
Support for up to 4 displays at the same time k
Audio Realtek®Audio CODEC
High Denition Audio
2/4/5.1/7.1-channel
* 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.
LAN Realtek®2.5GbE LAN chip (2.5 Gbps/1 Gbps/100 Mbps)
Wireless
Communication
Modulej
Intel®Wi-Fi 6 AX201 (For PCB rev. 1.0)
- 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 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.)
jOnly for B660M DS3H AX DDR4.
kOnly for B660M DS3H DDR4.

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Expansion Slots 1 x PCI Express x16 slot, running at x16
(The PCIEX16 slot conforms to PCI Express 4.0 standard.)
2 x PCI Express x1 slots
(The PCIEX1 slots conform to PCI Express 3.0 standard.)
Storage Interface CPU:
- 1 x M.2 connector (Socket 3, M key, type 2260/2280 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 Chipset:
- 1 x USB Type-C®port on the back panel, with USB 3.2 Gen 2 support
- 5 x USB 3.2 Gen 1 ports (3 ports on the back panel, 2 ports available through
the 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
Internal
Connectors
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 Trusted Platform Module header (For the GC-TPM2.0 SPI/GC-TPM2.0 SPI
2.0 module only)
1 x serial port header k
1 x parallel port header k
1 x S/PDIF Out header
1 x Q-Flash Plus button
1 x reset button
1 x reset jumper
1 x Clear CMOS jumper
jOnly for B660M DS3H AX DDR4.
kOnly for B660M DS3H DDR4.

- 9 -
Back Panel
Connectors
2 x USB 2.0/1.1 ports
1 x PS/2 keyboard/mouse port
2 x SMA antenna connectors (2T2R) j
1 x D-Sub port k
1 x HDMI 2.0 port
2 x DisplayPorts
3 x USB 3.2 Gen 1 ports
1 x USB Type-C®port, with USB 3.2 Gen 2 support
1 x RJ-45 port
3 x audio jacks
I/O Controller iTE®I/O Controller Chip
Hardware
Monitor
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 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
jOnly for B660M DS3H AX DDR4.
kOnly for B660M DS3H DDR4.

- 10 -
Bundled
Software
Norton®Internet Security (OEM version)
Realtek®Gaming LAN Bandwidth Control Utility
Operating
System
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 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.
B660M DS3H AX DDR4 B660M DS3H DDR4