Gigabyte B550 AORUS ELITE V2 User manual

For more product details, please visit GIGABYTE's website.
https://www.gigabyte.com/Motherboard/B550-AORUS-ELITE-AX-V2-rev-15?m=ma#kf
https://www.gigabyte.com/Motherboard/B550-AORUS-ELITE-V2-rev-15?m=ma#kf
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B550 AORUS ELITE AX V2
B550 AORUS ELITE V2
User's Manual
Rev. 1501

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Copyright
©2023 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 quick set-up of the product, refer to the Quick Installation Guide on GIGABYTE's website.
https://download.gigabyte.com/FileList/Manual/mb_manual_installation-guide_103.pdf?m=sw
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:

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Table of Contents
Chapter 1 Product Introduction.......................................................................................4
1-1 Motherboard Layout......................................................................................... 4
Chapter 2 Hardware Installation .....................................................................................5
2-1 Installation Precautions.................................................................................... 5
2-2 Product Specications...................................................................................... 6
2-3 Installing the CPU .......................................................................................... 10
2-4 Installing the Memory..................................................................................... 10
2-5 Installing an Expansion Card ......................................................................... 11
2-6 Back Panel Connectors.................................................................................. 11
2-7 Internal Connectors........................................................................................ 14
Chapter 3 BIOS Setup ..................................................................................................22
Chapter 4 Installing the Operating System and Drivers................................................24
4-1 Operating System Installation ........................................................................ 24
4-2 Drivers Installation.......................................................................................... 25
Chapter 5 Appendix ......................................................................................................26
5-1 Conguring a RAID Set.................................................................................. 26
Regulatory Notices.................................................................................................... 27
Contact Us ................................................................................................................ 31

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M2_WIFI (Note)
(Note) Only for B550 AORUS ELITE AX V2.
Socket AM4
AMD B550
USB20 CPU_FAN
ATX_12V
ATX
F_AUDIO
AUDIO
BAT
F_PANEL
PCIEX1_2
CLR_CMOS
CODEC
M_BIOS
PCIEX16
B550 AORUS ELITE (AX) V2
iTE
®
Super I/O
F_USB1
LED_C1
TPM
F_U32
M2B_SB
42
6080
110
CPU_OPT
SYS_FAN1
F_USB2SYS_FAN3
D_LED1
D_LED2 LED_C2
SYS_FAN2
DDR4_A1 DDR4_A2 DDR4_B1 DDR4_B2
SATA3
2 3
PCIEX1_1
PCIEX2
M2A_CPU
42
6080
110
LED_CPU
Realtek®
2.5GbE LAN
U32_LAN
U32G2
QFLASH_PLUS
QFLED
DP_HDMI
U32
USB 2.0 Hub
1 0
SATA3
F_U32C
1-1 Motherboard Layout
Chapter 1 Product Introduction

Chapter 2 Hardware Installation
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.
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2-2 ProductSpecications
CPU AMD Socket AM4, support for:
AMD Ryzen™5000 G-Series Processors/
AMD Ryzen™5000 Series Processors/
AMD Ryzen™4000 G-Series Processors/
AMD Ryzen™3000 Series Processors
(Go to GIGABYTE's website for the latest CPU support list.)
Chipset AMD B550
Memory 4 x DDR4 DIMM sockets supporting up to 128 GB (32 GB single DIMM capacity)
of system memory
Support for DDR4 3200/2933/2667/2400/2133 MT/s memory modules
Dual channel memory architecture
Support for ECC Un-buffered DIMM 1Rx8/2Rx8 memory modules
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:
- 1 x DisplayPort, supporting a maximum resolution of 5120x2880@60 Hz
* Support for DisplayPort 1.4 version, HDCP 2.3, and HDR.
- 1 x HDMI port, supporting a maximum resolution of 4096x2160@60 Hz
* Support for HDMI 2.1 version, HDCP 2.3, and HDR.
Maximum shared memory of 16 GB
Audio Realtek®Audio CODEC
High Denition Audio
2/4/5.1/7.1-channel
Support for S/PDIF Out
LAN Realtek®2.5GbE LAN chip (2.5 Gbit/1 Gbit/100 Mbit)
Wireless
Communication
Module (Note)
Intel®Wi-Fi 6 AX200 (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
AMD Wi-Fi 6E RZ608 (MT7921K) (For PCB rev. 1.1, 1.2)
- WIFI a, b, g, n, ac, ax, supporting 2.4/5/6 GHz carrier frequency bands
- BLUETOOTH 5.2
- Support for 11ax 80MHz wireless standard and up to 1.2 Gbps data rate
Intel®Wi-Fi 6E AX210 (For PCB rev. 1.3)
- WIFI a, b, g, n, ac, ax, supporting 2.4/5/6 GHz carrier frequency bands
- BLUETOOTH 5.3
- Support for 11ax 160MHz wireless standard and up to 2.4 Gbps data rate
Realtek®Wi-Fi 6E RTL8852CE (For PCB rev. 1.4, 1.5)
- 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.)
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(Note) Only for B550 AORUS ELITE AX V2.

Expansion Slots 1 x PCI Express x16 slot (PCIEX16), integrated in the CPU:
- AMD Ryzen™5000 Series/3000 Series Processors support PCIe 4.0 x16 mode
- AMD Ryzen™5000 G-Series/4000 G-Series Processors support PCIe 3.0
x16 mode
* For optimum performance, if only one PCI Express graphics card is to be installed,
be sure to install it in the PCIEX16 slot.
1 x PCI Express x16 slot (PCIEX2), integrated in the Chipset:
- Supporting PCIe 3.0 x2 mode
1 x PCI Express x16 slot (PCIEX1_2), integrated in the Chipset:
- Supporting PCIe 3.0 x1 mode
1 x PCI Express x1 slot (PCIEX1_1), integrated in the Chipset:
- Supporting PCIe 3.0 x1 mode
Storage Interface 1 x M.2 connector (M2A_CPU), integrated in the CPU, supporting Socket 3,
M key, type 2242/2260/2280/22110 SSDs:
- AMD Ryzen™5000 Series/3000 Series Processors support SATA and PCIe
4.0 x4/x2 SSDs
- AMD Ryzen™5000 G-Series/4000 G-Series Processors support SATA and
PCIe 3.0 x4/x2 SSDs
1 x M.2 connector (M2B_SB), integrated in the Chipset, supporting Socket 3,
M key, type 2242/2260/2280/22110 SSDs:
- Supporting SATA and PCIe 3.0 x4/x2 SSDs
4 x SATA 6Gb/s connectors, integrated in the Chipset:
- Support for RAID 0, RAID 1, and RAID 10
USB CPU:
- 2 x USB 3.2 Gen 2 Type-A ports (red) on the back panel
- 2 x USB 3.2 Gen 1 ports on the back panel
Chipset:
- 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 1 port on the back panel
- 2 x USB 3.2 Gen 1 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
2 x M.2 Socket 3 connectors
4 x SATA 6Gb/s connectors
1 x CPU fan header
1 x water cooling CPU fan header
3 x system fan headers
1 x CPU cooler LED strip/RGB LED strip header
2 x addressable LED strip headers
2 x RGB LED strip headers
1 x front panel header
1 x front panel audio header
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Internal
Connectors
1 x USB Type-C®header, with USB 3.2 Gen 1 support
1 x USB 3.2 Gen 1 header
2 x USB 2.0/1.1 headers
1 x Trusted Platform Module (TPM) header (2x6 pin, for the GC-TPM2.0_S
module only)
1 x Clear CMOS jumper
Back Panel
Connectors
1 x DisplayPort
1 x HDMI port
2 x SMA antenna connectors (2T2R) (Note)
2 x USB 3.2 Gen 2 Type-A ports (red)
3 x USB 3.2 Gen 1 ports
2 x USB 2.0/1.1 ports
1 x Q-Flash Plus button
1 x RJ-45 port
1 x optical S/PDIF Out connector
5 x audio jacks
I/O Controller iTE®I/O Controller Chip
Hardware
Monitor
Voltage detection
Temperature detection
Fan speed detection
Water cooling ow rate detection
Overheating warning
Fan fail warning
Fan speed control
* Whether the fan speed control function is supported will depend on the fan you install.
BIOS 1 x 128 Mbit ash
Use of licensed AMI UEFI BIOS
PnP 1.0a, DMI 2.7, WfM 2.0, SM BIOS 2.7, ACPI 5.0
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(Note) Only for B550 AORUS ELITE AX V2.

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
- 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 ATX Form Factor; 30.5cm x 24.4cm
* GIGABYTE reserves the right to make any changes to the product specications and product-related information without
prior notice.
&Please visit GIGABYTE's website for support lists of CPU, memory modules, SSDs, and M.2 devices.
https://www.gigabyte.com/Motherboard/B550-AORUS-ELITE-AX-V2-rev-15?m=dl#support-dl
https://www.gigabyte.com/Motherboard/B550-AORUS-ELITE-V2-rev-15?m=dl#support-dl
&Please visit the SERVICE/SUPPORT\Utility page on GIGABYTE's website to download the latest
version of apps.
https://www.gigabyte.com/Support/Utility/Motherboard?m=ut
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DualChannelMemoryConguration
This motherboard provides four memory sockets and supports Dual Channel Technology. After the memory
is installed, the BIOS will automatically detect the specications and capacity of the memory. Enabling Dual
Channel memory mode will double the original memory bandwidth.
2-3 Installing the CPU
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.
•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.
Installing the CPU
Completely lift up the CPU socket locking lever. Locate the pin one (denoted by a small triangle) of the CPU
socket and the CPU. Once the CPU is positioned into its socket, place one nger down on the middle of the
CPU, lowering the locking lever and latching it into the fully locked position.
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.
AM4 Socket
A Small Triangle
Marking Denotes Pin
One of the Socket AM4 CPU
A Small Triangle
Marking Denotes CPU
Pin One
2-4 Installing the Memory
Completely lift up the CPU
socket locking lever
Do not force the CPU into the CPU socket before the CPU socket locking lever is lifted up, or
damage to the CPU and CPU socket may occur.
&Please visit GIGABYTE's website for details on hardware installation.
http://www.gigabyte.com/WebPage/210/quick-guide.html?m=sw
- 10 -

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.
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.
2-6 Back Panel Connectors
USB 2.0/1.1 Port
The USB port supports the USB 2.0/1.1 specication. Use this port for USB devices.
SMA Antenna Connectors (2T2R) (Note 1)
Use this connector to connect an antenna.
DisplayPort (Note 2)
DisplayPort delivers high quality digital imaging and audio, supporting bi-directional audio transmission.
DisplayPort can support both DPCP and HDCP 2.3 content protection mechanisms. It provides improved
visuals supporting Rec. 2020 (Wide Color Gamut) and High Dynamic Range (HDR) for Blu-ray UHD
playback. You can use this port to connect your DisplayPort-supported monitor. Note: The DisplayPort
Technology can support a maximum resolution of 5120x2880@60 Hz but the actual resolutions supported
depend on the monitor being used.
HDMI Port (Note 2)
The HDMI port is HDCP 2.3 compliant and supports 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.)
Recommended Dual Channel Memory Conguration:
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)
Tighten the antennas to the antenna connectors and then aim the antennas correctly for better
signal reception.
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
- 11 -

Q-Flash Plus Button (Note 3)
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 Q-Flash Plus 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 BIOS ashing is complete.
USB 3.2 Gen 1 Port (Q-Flash Plus 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. Before using Q-Flash Plus (Note 3), make sure to insert the
USB ash drive into this port rst.
USB 3.2 Gen 2 Type-A Port (Red)
The USB 3.2 Gen 2 Type-A 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.
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.
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.
Center/Subwoofer Speaker Out
Use this audio jack to connect center/subwoofer speakers.
Rear Speaker Out
Use this audio jack to connect rear speakers.
Optical S/PDIF Out Connector
This connector provides digital audio out to an external audio system that supports digital optical audio.
Before using this feature, ensure that your audio system provides an optical digital audio in connector.
Line In/Side Speaker Out
The line in jack. Use this audio jack for line in devices such as an optical drive, walkman, etc.
Line Out/Front Speaker Out
The line out jack.
Mic In/Side Speaker Out
The Mic in jack.
Speed LED Activity LED
LAN Port
Speed LED:
State Description
Orange 2.5 Gbps data rate
Green 1 Gbps data rate
Off 100 Mbps data rate
Activity LED:
State Description
Blinking Data transmission or receiving is occurring
Off No data transmission or receiving is occurring
(Note 1) Only for B550 AORUS ELITE AX V2.
(Note 2) For AMD Ryzen™5000 G-Series/4000 G-Series Processors only.
(Note 3) To enable the Q-Flash Plus function please visit the "Unique Features" webpage of GIGABYTE's
website.
- 12 -

Audio Jack Congurations:
Jack Headphone/
2-channel 4-channel 5.1-channel 7.1-channel
Center/Subwoofer Speaker Out a a
Rear Speaker Out a a a
Line In/Side Speaker Out a
Line Out/Front Speaker Out a a a a
Mic In/Side Speaker Out a
If you want to install a Side Speaker, you need to retask either the Line in or Mic in jack to be Side
Speaker out through the audio driver.
•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.
&Please visit GIGABYTE's website for details on conguring the audio software.
https://www.gigabyte.com/WebPage/697/realtek897-audio.html
- 13 -

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
2) ATX
3) CPU_FAN
4) SYS_FAN1/2/3
5) CPU_OPT
6) LED_CPU
7) D_LED1/D_LED2
8) LED_C1/LED_C2
9) SATA3 0/1/2/3
10) M2A_CPU/M2B_SB
11) F_PANEL
12) F_ AUDIO
13) F_U32C
14) F_U32
15) F_USB1/F_USB2
16) TPM
17) CLR_CMOS
18) BAT
1
4
4
10
9
4
2
3
1115
10
9
6
5
8
7
7 8 16
12
14
17
18
13
- 14 -

DEBUG
PORT
G.QBOFM
131
2412
ATX
1/2) ATX_12V/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:
Pin No. Denition Pin No. Denition
1 GND (Only for 2x4-pin 12V) 5 +12V (Only for 2x4-pin 12V)
2 GND (Only for 2x4-pin 12V) 6 +12V (Only for 2x4-pin 12V)
3 GND 7 +12V
4 GND 8 +12V
DEBUG
PORT
G.QBOFM
ATX_12V
41
85
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.
Pin No. Denition
1 GND
2 Voltage Speed Control
3 Sense
4 PWM Speed Control
•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.
CPU_FAN/SYS_FAN1 SYS_FAN3
DEBUG
PORT
G.QBOFM
1
DEBUG
PORT
G.QBOFM
1
SYS_FAN2
DEBUG
PORT
G.QBOFM
1
- 15 -

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.
DEBUG PORT
G.QBOFM
1
Pin No. Denition
1 GND
2 Voltage Speed Control
3 Sense
4 PWM Speed Control
•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.
6) LED_CPU (CPU Cooler LED Strip/RGB LED Strip Header)
The header can be used to connect a CPU cooler LED strip or a standard 5050 RGB LED strip (12V/G/R/B),
with maximum power rating of 2A (12V) and maximum length of 2m.
Pin No. Denition
1 12V
2 G
3 R
4 B
Connect the CPU cooler LED strip/RGB 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 (12V) of this header. Incorrect connection
may lead to the damage of the LED strip.
RGB LED
Strip
1
12V
1
DEBUG PORT
G.QBOFM
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.
For how to turn on/off the lights of the LED strip please visit the "Unique Features" webpage of
GIGABYTE's website.
7) D_LED1/D_LED2 (Addressable LED Strip Headers)
The headers can be used to connect a standard 5050 addressable LED strip, with maximum power rating
of 5A (5V) and maximum number of 1000 LEDs.
Pin No. Denition
1 V (5V)
2 Data
3 No Pin
4 GND
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 the damage of the LED strip.
Addressable LED
Strip
1
D_LED1 D_LED2
1
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_
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_
1
- 16 -

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.
8) LED_C1/LED_C2 (RGB LED Strip Headers)
The headers can be used to connect a standard 5050 RGB LED strip (12V/G/R/B), with maximum power
rating of 2A (12V) and maximum length of 2m.
Pin No. Denition
1 12V
2 G
3 R
4 B
For how to turn on/off the lights of the LED strip please visit the "Unique Features" webpage of
GIGABYTE's website.
1 1
LED_C1 LED_C2
DEBUG
PORT
G.QBOFM
DEBUG
PORT
G.QBOFM
9) SATA3 0/1/2/3 (SATA 6Gb/s Connectors)
The SATA connectors conform to SATA 6Gb/s standard and are compatible with SATA 3Gb/s and SATA
1.5Gb/s standard. Each SATA connector supports a single SATA device. The SATA connectors support
RAID 0, RAID 1, and RAID 10. Please navigate to the "Conguring a RAID Set" page of GIGABYTE's
website for instructions on conguring a RAID array.
Pin No. Denition
1 GND
2 TXP
3 TXN
4 GND
5 RXN
6 RXP
7 GND
Connect your RGB 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 (12V) of this header. Incorrect connection may lead to the
damage of the LED strip.
RGB LED Strip
1
12V
SATA3 0
1
7
DEBUG PORT
G.QBOFM
DEBUG PORT
G.QBOFM
1
SATA3 2
3
1
1
7
7
DEBUG
PORT
G.QBOFM
- 17 -

10) M2A_CPU/M2B_SB (M.2 Socket 3 Connectors)
The M.2 connectors support M.2 SATA SSDs or M.2 PCIe SSDs and support RAID conguration. Please
note that an M.2 PCIe SSD cannot be used to create a RAID set either with an M.2 SATA SSD or a SATA
hard drive. Please navigate to the "Conguring a RAID Set" page of GIGABYTE's website for instructions
on conguring a RAID array.
Follow the steps below to correctly install an M.2 SSD in the M.2 connector.
Step 1:
Locate the M.2 connector where you will install the M.2 SSD, use a screwdriver to unfasten the screw on
the heatsink and then remove the heatsink.
Step 2:
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 3:
Press the M.2 SSD down and then secure it with the screw. Replace the heatsink and secure it to the
original hole. Make sure to remove the protective lm from the bottom of the heatsink before replacing the heatsink.
Select the proper hole for the M.2 SSD to be installed and refasten the screw and standoff.
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_
80110 60 42
M2A_CPU
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_
80110 60 42
M2B_SB (Note)
(Note) Only B550 AORUS ELITE AX V2 has the heatsink.
- 18 -

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
different wire assignments, please contact the chassis manufacturer.
11) F_PANEL (Front Panel Header)
Connect the power switch, reset switch, speaker, chassis intrusion switch/sensor and system status indicator
on the chassis to this header according to the pin assignments below. Note the positive and negative pins
before connecting the cables.
12) F_AUDIO (Front Panel Audio Header)
The front panel audio header supports High Denition audio (HD). You may connect your chassis front
panel audio module to this header. Make sure the wire assignments of the module connector match the
pin assignments of the motherboard header. Incorrect connection between the module connector and the
motherboard header will make the device unable to work or even damage it.
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_
9 1
10 2
Pin No. Denition Pin No. Denition
1 MIC L 6 MIC Detection
2 GND 7 SENSE_SEND
3 MIC R 8 No Pin
4 NC 9 Head Phone L
5 Head Phone R 10 Head Phone Detection
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 are
matched correctly.
System Status LED
S0 On
S3/S4/S5 Off
•PW (Power Switch):
Connects to the power switch on the chassis front panel. You may
congure the way to turn off your system using the power switch
(please navigate to the "BIOS Setup" page of GIGABYTE's website
and search for "Settings\Platform Power" for more information).
•SPEAK (Speaker):
Connects to the speaker on the chassis front panel. The system reports
system startup status by issuing a beep code. One single short beep
will be heard if no problem is detected at system startup.
•PLED/PWR_LED (Power LED):
Connects to the power status indicator
on the chassis front panel. The LED is on
when the system is operating. The LED is
off when the system is in S3/S4 sleep state
or powered off (S5).
•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.
NC NC
Power LED
DEBUG
PORT
G.QBOFM
1
2
19
20
CI-
CI+
PWR_LED-
PWR_LED+
PLED- PW- SPEAK+ SPEAK-
PLED+ PW+
Power LED
HD-
RES+
HD+
RES-
Hard Drive
Activity LED
Reset
Switch Chassis Intrusion
Header
Power Switch Speaker
PWR_LED-
- 19 -

Pin No. Denition Pin No. Denition Pin No. Denition
1 VBUS 8 D1- 15 SSTX2-
2 SSRX1- 9 D1+ 16 GND
3 SSRX1+ 10 NC 17 SSRX2+
4 GND 11 D2+ 18 SSRX2-
5 SSTX1- 12 D2- 19 VBUS
6 SSTX1+ 13 GND 20 No Pin
7 GND 14 SSTX2+
14) F_U32 (USB 3.2 Gen 1 Header)
The header conforms to USB 3.2 Gen 1 and USB 2.0 specication 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.
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_
11
1 10
20
15) F_USB1/F_USB2 (USB 2.0/1.1 Headers)
The headers conform to USB 2.0/1.1 specication. Each USB header can provide two USB ports via an
optional USB bracket. For purchasing the optional USB bracket, please contact the local dealer.
Pin No. Denition Pin No. Denition
1 Power (5V) 6 USB DY+
2 Power (5V) 7 GND
3 USB DX- 8 GND
4 USB DY- 9 No Pin
5 USB DX+ 10 NC
Prior to installing the USB bracket, be sure to turn off your computer and unplug the power cord
from the power outlet to prevent damage to the USB bracket.
DEBUG
PORT
G.QBOFM
10
9
2
1
13) F_U32C (USB Type-C®Header with USB 3.2 Gen 1 Support)
The header conforms to USB 3.2 Gen 1 specication and can provide one USB port.
Pin No. Denition Pin No. Denition Pin No. Denition
1VBUS 8 CC1 15 RX2+
2 TX1+ 9 SBU1 16 RX2-
3 TX1- 10 SBU2 17 GND
4 GND 11 VBUS 18 D-
5 RX1+ 12 TX2+ 19 D+
6 RX1- 13 TX2- 20 CC2
7 VBUS 14 GND
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_
20
10
11
1
- 20 -