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B550 AORUS ELITE AX
B550 AORUS ELITE
User's Manual
Rev. 1002
12ME-B55AELT-1002R
B550 AORUS ELITE AX B550 AORUS ELITE
For more product details, please visit GIGABYTE's website.
To reduce the impacts on global warming, the packaging materials of this product are recyclable and reusable. GIGABYTE works with you to protect the environment.
Copyright
© 2020 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.
ChangestothespecificationsandfeaturesinthismanualmaybemadebyGIGABYTEwithout 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
B550 AORUS ELITE (AX) Motherboard Layout .............................................................. |
4 |
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B550 AORUS ELITE (AX) Motherboard Block Diagram.................................................. |
5 |
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Chapter 1 Hardware Installation ..................................................................................... |
6 |
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1-1 |
Installation Precautions.................................................................................... |
6 |
1-2 |
Product Specifications...................................................................................... |
7 |
1-3 |
Installing the CPU .......................................................................................... |
10 |
1-4 |
Installing the Memory ..................................................................................... |
10 |
1-5 Installing an Expansion Card ......................................................................... |
11 |
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1-6 |
Back Panel Connectors.................................................................................. |
11 |
1-7 |
Internal Connectors........................................................................................ |
14 |
Chapter 2 BIOS Setup .................................................................................................. |
22 |
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2-1 |
Startup Screen ............................................................................................... |
22 |
2-2 |
The Main Menu .............................................................................................. |
23 |
2-3 |
Favorites (F11) ............................................................................................... |
24 |
2-4 |
Tweaker.......................................................................................................... |
25 |
2-5 |
Settings .......................................................................................................... |
28 |
2-6 |
System Info. ................................................................................................... |
33 |
2-7 |
Boot................................................................................................................ |
34 |
2-8 |
Save & Exit..................................................................................................... |
37 |
Chapter 3 Appendix ...................................................................................................... |
38 |
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3-1 |
Configuring a RAID Set.................................................................................. |
38 |
3-2 |
Drivers Installation.......................................................................................... |
40 |
Regulatory Notices.................................................................................................... |
41 |
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Contact Us ................................................................................................................ |
44 |
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- 3 -
B550 AORUS ELITE (AX) Motherboard Layout
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ATX_12V |
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D_LED2 |
LED_C2 |
USB20 |
SYS_FAN1 |
CPU_FAN |
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CPU_OPT |
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M2_WIFI (Note) |
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DP_HDMI |
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QFLED |
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Socket AM4 |
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ATX |
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U32 |
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U32G2 |
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U32_LAN |
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<![if ! IE]> <![endif]>SYS FAN2 |
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AUDIO |
<![if ! IE]> <![endif]>CPU |
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<![if ! IE]> <![endif]>LED |
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Realtek® |
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BAT |
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<![if ! IE]> <![endif]>0 |
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<![if ! IE]> <![endif]>1 |
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<![if ! IE]> <![endif]>SATA3 |
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<![if ! IE]> <![endif]>A1 |
<![if ! IE]> <![endif]>A2 |
<![if ! IE]> <![endif]>B1 |
<![if ! IE]> <![endif]>B2 |
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<![if ! IE]> <![endif]>DDR4 |
<![if ! IE]> <![endif]>DDR4 |
<![if ! IE]> <![endif]>DDR4 |
<![if ! IE]> <![endif]>DDR4 |
110 |
80 |
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CODEC
PCIEX2
<![endif]>M2B_SB
AMD B550
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PCIEX1_1 |
B550 AORUS ELITE (AX) |
iTE® |
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PCIEX1_2 |
USB 2.0 Hub |
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Super I/O |
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SATA3 |
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CLR_CMOS |
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F_AUDIO |
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3 2 |
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LED_C1 |
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D_LED1 |
TPM |
F_USB1 |
F_PANEL |
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SYS_FAN3 F_USB2 |
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F_U32 |
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Box Contents |
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5 |
B550 AORUS ELITE AX or B550 AORUS ELITE motherboard |
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Motherboard driver disc |
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5 One G Connector |
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User's Manual |
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5 One antenna (Note) |
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Two SATA cables |
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*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.
(Note) Only for the B550 AORUS ELITE AX.
- 4 -
B550 AORUS ELITE (AX) Motherboard Block Diagram
PCI Express 4.0/3.0 Bus
x16 |
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DisplayPort |
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2 USB 3.2 Gen |
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2 Type A |
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2 USB 3.2 Gen 1 |
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CODEC |
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<![if ! IE]> <![endif]>SpeakerRearOut Center/Subwoofer |
<![if ! IE]> <![endif]>MIC Line |
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<![if ! IE]> <![endif]>S/PDIFOut |
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<![if ! IE]> <![endif]>SpeakerOut |
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<![if ! IE]> <![endif]>Out |
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<![if ! IE]> <![endif]>In |
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<![if ! IE]> <![endif]>Line |
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4 SATA 6Gb/s 
AMD Socket
AM4 CPU
<![if ! IE]><![endif]>
PCIe 3.0 x4
AMD B550
CPU CLK+/- (100~500 MHz)
DDR4 3200/2933/2667/2400/2133 MHz
1 M.2 Socket 3
(M2A_CPU)
SPI BIOS
Bus
LPC 
TPM
Bus iTE®
Super I/O
4 USB 3.2 Gen 1
2 USB 2.0/1.1
PCI Express 3.0 Bus
x1 |
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x2 |
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<![if ! IE]> <![endif]>1 PCI Express x2 |
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x1
Realtek® 2.5GbE LAN
RJ45
LAN
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USB 2.0 |
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4 USB 2.0/1.1 |
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Hub |
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PCI Express 3.0 Bus
x1
M.2 WIFI Module (Note)
1 M.2 Socket 3
(M2B_SB)
(Note) Only for the B550 AORUS ELITE AX.
- 5 -
Chapter 1 Hardware Installation
1-1 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 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 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 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 -
1-2 Product Specifications
CPU |
AMD Socket AM4, support for: |
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3rd Generation AMD Ryzen™ processors/ |
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3rd Generation AMD Ryzen™ with Radeon™ Graphics processors |
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(Go to GIGABYTE's website for the latest CPU support list.) |
Chipset |
AMD B550 |
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Memory |
4 x DDR4 DIMM sockets supporting up to 128 GB (32 GB single DIMM capacity) |
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of system memory |
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Support for DDR4 3200/2933/2667/2400/2133 MHz memory modules |
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Dual channel memory architecture |
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Support for ECC Un-buffered DIMM 1Rx8/2Rx8 memory modules |
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Support for non-ECC Un-buffered DIMM 1Rx8/2Rx8/1Rx16 memory modules |
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Support for Extreme Memory Profile (XMP) memory modules |
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(Go to GIGABYTE's website for the latest supported memory speeds and memory |
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modules.) |
Onboard |
Integrated in the 3rd Generation AMD Ryzen™ with Radeon™ Graphics processors: |
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Graphics |
- |
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 |
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Realtek® ALC1200 codec |
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High Definition Audio |
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2/4/5.1/7.1-channel |
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Support for S/PDIF Out |
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LAN |
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Realtek® 2.5GbE LAN chip (2.5 Gbit/1 Gbit/100 Mbit) |
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Wireless |
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Intel® Wi-Fi 6 AX200 |
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Communication |
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- |
WIFI a, b, g, n, ac with wave 2 features, ax, supporting 2.4/5 GHz Dual-Band |
Module (Note) |
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BLUETOOTH 5 |
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Support for 11ax 160MHz wireless standard and up to 2.4 Gbps data rate |
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* Actual data rate may vary depending on environment and equipment. |
Expansion Slots |
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1 x PCI Express x16 slot (PCIEX16), integrated in the CPU: |
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-3rd Generation AMD Ryzen™ processors support PCIe 4.0 x16 mode
-3rd Generation AMD Ryzen™ with Radeon™ Graphics 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
(Note) Only for the B550 AORUS ELITE AX.
- 7 -
Storage Interface 1 x M.2 connector (M2A_CPU), integrated in the CPU, supporting Socket 3, M key, type 2242/2260/2280/22110 SSDs:
-3rd Generation AMD Ryzen™ processors support SATA and PCIe 4.0 x4/x2 SSDs
-3rd Generation AMD Ryzen™ with Radeon™ Graphics 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 |
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CPU: |
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- 2 x USB 3.2 Gen 2 Type-A ports (red) on the back panel |
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- 2 x USB 3.2 Gen 1 ports on the back panel |
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Chipset: |
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- 2 x USB 3.2 Gen 1 ports on the back panel |
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- 2 x USB 3.2 Gen 1 ports available through the internal USB header |
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- 2 x USB 2.0/1.1 ports on the back panel |
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Chipset+USB 2.0 Hub: |
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- 4 x USB 2.0/1.1 ports available through the internal USB headers |
Internal |
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1 x 24-pin ATX main power connector |
Connectors |
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1 x 8-pin ATX 12V power connector |
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2 x M.2 Socket 3 connectors |
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4 x SATA 6Gb/s connectors |
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1 x CPU fan header |
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1 x water cooling CPU fan header |
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3 x system fan headers |
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1 x CPU cooler LED strip/RGB LED strip header |
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2 x addressable LED strip headers |
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2 x RGB LED strip headers |
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1 x front panel header |
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1 x front panel audio header |
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1 x USB 3.2 Gen 1 header |
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2 x USB 2.0/1.1 headers |
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1 x Trusted Platform Module (TPM) header (2x6 pin, for the GC-TPM2.0_S |
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module only) |
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1 x Clear CMOS jumper |
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Back Panel |
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1 x DisplayPort |
Connectors |
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1 x HDMI port |
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2 x SMA antenna connectors (2T2R) (Note) |
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2 x USB 3.2 Gen 2 Type-A ports (red) |
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4 x USB 3.2 Gen 1 ports |
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2 x USB 2.0/1.1 ports |
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1 x Q-Flash Plus button |
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1 x RJ-45 port |
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1 x optical S/PDIF Out connector |
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5 x audio jacks |
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(Note) Only for the B550 AORUS ELITE AX.
- 8 -
I/O Controller |
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iTE® I/O Controller Chip |
Hardware |
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Voltage detection |
Monitor |
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Temperature detection |
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Fan speed detection |
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Water cooling flow rate detection |
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Overheating warning |
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Fan fail warning |
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Fan speed control |
* Whether the fan speed control function is supported will depend on the fan you install.
BIOS |
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1 x 256 Mbit flash |
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Use of licensed AMI UEFI BIOS |
PnP 1.0a, DMI 2.7, WfM 2.0, SM BIOS 2.7, ACPI 5.0
Unique Features |
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Support for APP Center |
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* Available applications in APP Center may vary by motherboard model. Supported |
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functionsofeachapplicationmayalsovarydependingonmotherboardspecifications. |
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@BIOS |
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EasyTune |
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Fast Boot |
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Game Boost |
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ON/OFF Charge |
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RGB Fusion |
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Smart Backup |
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System Information Viewer |
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Support for Q-Flash Plus |
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Support for Q-Flash |
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Support for Xpress Install |
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Bundled |
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Norton® Internet Security (OEM version) |
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Software |
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Realtek® 8125 Gaming LAN Bandwidth Control Utility |
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Operating |
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Support for Windows 10 64-bit |
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System |
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Form Factor |
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ATX Form Factor; 30.5cm x 24.4cm |
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*GIGABYTE reserves the right to make any changes to the product specifications and product-related information without prior notice.
B550 AORUS ELITE AX B550 AORUS ELITE
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.
- 9 -
1-3 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 specifications. It is not recommended that the system bus frequency be set beyond hardware specifications since it does not meet the standard 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.
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 finger down on the middle of the
CPU, lowering the locking lever and latching it into the fully locked position.
A Small Triangle |
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A Small Triangle |
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Marking Denotes Pin |
AM4 Socket |
AM4 CPU |
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Marking Denotes CPU |
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One of the Socket |
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Pin One |
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1-4 Installing the Memory
Read the following guidelines before you begin to install the memory:
•Make sure that the motherboard supports the memory. It is recommended that memory of the same capacity, brand, speed, and chips be used.
(Go to GIGABYTE's website for the latest supported memory speeds and memory modules.)
•Always turn off the computer and unplug the power cord from the power outlet before installing the memory to prevent hardware damage.
•Memory modules have a foolproof design. A memory module can be installed in only one direction. If you are unable to insert the memory, switch the direction.
Dual Channel Memory 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_A2Channel B: DDR4_B1, DDR4_B2
Please visit GIGABYTE's website for details on hardware installation.
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Recommanded Dual Channel Memory Configuration:
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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.
1-5 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.
1-6 Back Panel Connectors
USB 2.0/1.1 Port
The USB port supports the USB 2.0/1.1 specification. Use this port for USB devices.
SMA Antenna Connectors (2T2R) (Note 1)
Use this connector to connect an antenna.
Tighten the antennas to the antenna connectors and then aim the antennas correctly for better signal reception.
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.)
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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 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 BIOS flashing is complete.
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.
USB 3.2 Gen 1 Port (Q-Flash Plus 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. Before using Q-Flash Plus (Note 3), make sure to insert the USB flash drive into this port first.
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 specification and is compatible to the USB 3.2 Gen 1 and USB 2.0 specification. 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.
Connection/ |
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Activity LED |
Connection/Speed LED: |
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Activity LED: |
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Speed LED |
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Description |
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State |
Description |
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Orange |
2.5 Gbps data rate |
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Blinking |
Data transmission or receiving is occurring |
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Green |
1 Gbps data rate |
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Off |
No data transmission or receiving is occurring |
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Off |
100 Mbps data rate |
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LAN Port |
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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.
(Note 1) Only for the B550 AORUS ELITE AX.
(Note 2) For 3rd Generation AMD Ryzen™ with Radeon™ Graphics processors only.
(Note 3) To enable the Q-Flash Plus function please visit the "Unique Features" webpage of GIGABYTE's website.
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Audio Jack Configurations:
Jack |
Headphone/ |
4-channel |
5.1-channel |
7.1-channel |
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2-channel |
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Center/Subwoofer Speaker Out |
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a |
a |
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Rear Speaker Out |
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a |
a |
a |
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Line In/Side Speaker Out |
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a |
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Line Out/Front Speaker Out |
a |
a |
a |
a |
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Mic In/Side Speaker Out |
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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, first 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 configuring the audio software.
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1-7 |
Internal Connectors |
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4 |
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5 |
3 |
7 |
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8 |
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6 |
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10 |
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17 |
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10 |
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12 |
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16 |
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7 |
8 |
4 |
15 |
14 |
13 |
11 |
9 |
1) |
ATX_12V |
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10) |
M2A_CPU/M2B_SB |
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2) |
ATX |
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11) |
F_PANEL |
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3) |
CPU_FAN |
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12) |
F_AUDIO |
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4) |
SYS_FAN1/2/3 |
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13) |
F_U32 |
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5) |
CPU_OPT |
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14) |
F_USB1/F_USB2 |
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6) |
LED_CPU |
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15) |
TPM |
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7) |
D_LED1/D_LED2 |
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16) |
CLR_CMOS |
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8) |
LED_C1/LED_C2 |
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17) |
BAT |
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9) |
SATA3 0/1/2/3 |
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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.
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