GIGA-BYTE TECHNOLOGY B660 AORUS MASTER User manual

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B660 AORUS MASTER
B660 A MASTER DDR4
(B660 AORUS MASTER DDR4)
User's Manual
Rev. 1201
12ME-B66MST4-1201R
For more product details, please visit GIGABYTE's website.
B660 A MASTER
DDR4
B660 AORUS
MASTER

Copyright
©2021 GIGA-BYTE TECHNOLOGY CO., LTD. All rights reserved.
The trademarks mentioned in this manual are legally registered to their respective owners.
Disclaimer
Information in this manual is protected by copyright laws and is the property of GIGABYTE.
Changes to the specications and features in this manual may be made by GIGABYTE without
prior notice. No part of this manual may be reproduced, copied, translated, transmitted, or
published in any form or by any means without GIGABYTE's prior written permission. No part
of this manual may be reproduced, copied, translated, transmitted, or published in any form
or by any means without GIGABYTE's prior written permission.
In order to assist in the use of this product, carefully read the User's Manual.
For product-related information, check on our website at: https://www.gigabyte.com
Identifying Your Motherboard Revision
The revision number on your motherboard looks like this: "REV: X.X." For example, "REV: 1.0"
means the revision of the motherboard is 1.0. Check your motherboard revision before updating
motherboard BIOS, drivers, or when looking for technical information.
Example:

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

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

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

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

- 7 -
1-3 Box Contents
5B660 AORUS MASTER or B660 A MASTER DDR4 motherboard
5User's Manual
5One antenna
5Two SATA cables
5One noise detection cable
5M.2 screws
5One G Connector
* The box contents above are for reference only and the actual items shall depend on the product package you obtain.
The box contents are subject to change without notice.

- 8 -
2-1 Installation Precautions
The motherboard contains numerous delicate electronic circuits and components which can become
damaged as a result of electrostatic discharge (ESD). Prior to installation, carefully read the user's
manual and follow these procedures:
•Prior to installation, make sure the chassis is suitable for the motherboard.
•Prior to installation, do not remove or break motherboard S/N (Serial Number) sticker or
warranty sticker provided by your dealer. These stickers are required for warranty validation.
•Always remove the AC power by unplugging the power cord from the power outlet before
installing or removing the motherboard or other hardware components.
•When connecting hardware components to the internal connectors on the motherboard, make
sure they are connected tightly and securely.
•When handling the motherboard, avoid touching any metal leads or connectors.
•It is best to wear an electrostatic discharge (ESD) wrist strap when handling electronic
components such as a motherboard, CPU or memory. If you do not have an ESD wrist strap,
keep your hands dry and rst touch a metal object to eliminate static electricity.
•Prior to installing the motherboard, please have it on top of an antistatic pad or within an
electrostatic shielding container.
•Before connecting or unplugging the power supply cable from the motherboard, make sure
the power supply has been turned off.
•Before turning on the power, make sure the power supply voltage has been set according to
the local voltage standard.
•Before using the product, please verify that all cables and power connectors of your hardware
components are connected.
•To prevent damage to the motherboard, do not allow screws to come in contact with the
motherboard circuit or its components.
•Make sure there are no leftover screws or metal components placed on the motherboard or
within the computer casing.
•Do not place the computer system on an uneven surface.
•Do not place the computer system in a high-temperature or wet environment.
•Turning on the computer power during the installation process can lead to damage to system
components as well as physical harm to the user.
•If you are uncertain about any installation steps or have a problem related to the use of the
product, please consult a certied computer technician.
•If you use an adapter, extension power cable, or power strip, ensure to consult with its
installation and/or grounding instructions.
Chapter 2 Hardware Installation

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

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