Contents

Safety information
- About this guide
- ROG STRIX B550-A GAMING specifications summary
- Connectors with shared bandwidth
- Package contents
- Installation tools and components
Chapter 1: Product Introduction
- 1.1 Before you proceed
- 1.2 Motherboard layout
Chapter 2: Basic Installation
- 2.1 Building your PC system
  - 2.1.1 CPU installation
  - 2.1.2 Cooling system installation
  - 2.1.3 DIMM installation
  - 2.1.4 M.2 installation
  - 2.1.5 Motherboard installation
  - 2.1.6 ATX power connection
  - 2.1.7 SATA device connection
  - 2.1.8 Front I/O connector
  - 2.1.9 Expansion card installation
- 2.2 BIOS update utility
- 2.3 Motherboard rear and audio connections
  - 2.3.1 Rear I/O connection
  - 2.3.2 Audio I/O connections
- 2.4 Starting up for the first time
- 2.5 Turning off the computer
Chapter 3: BIOS and RAID Support
- 3.1 Knowing BIOS
- 3.2 BIOS setup program
- 3.3 EZ Update
- 3.4 ASUS EZ Flash 3
- 3.4 ASUS CrashFree BIOS 3
- 3.6 RAID configurations
Appendix
- Notices
- ASUS contact information

ASUS ROG STRIX B550-A GAMING User Manual

ASUS ROG STRIX B550-A GAMING Motherboard manual cover

Pages 64

Year 2020

Language(s)

of 64

ASUS ROG STRIX B550-A GAMING Motherboard Specification

The ASUS ROG STRIX B550-A GAMING Motherboard is designed for gamers seeking performance and style. It supports AMD Ryzen 5000, 4000 G-Series, and 3000 Series desktop processors, offering robust power delivery and comprehensive cooling solutions. The motherboard utilizes the AMD B550 chipset, which provides PCIe 4.0 capabilities for faster data transfer speeds. It features dual M.2 slots, one of which supports PCIe 4.0 x4, allowing for ultra-fast NVMe SSDs.

The board is equipped with 12+2 DrMOS power stages, alloy chokes, and durable capacitors to ensure reliable power delivery and overclocking potential. It includes high-quality components like a ProCool power connector, which enhances thermal performance. The cooling system comprises a VRM heatsink, an M.2 heatsink, and a hybrid fan header for optimal temperature control.

For connectivity, it offers high-speed networking with 2.5Gb Ethernet and support for ASUS LANGuard. Onboard Wi-Fi 6 and Bluetooth v5.1 provide wireless connectivity options. The motherboard features multiple USB ports, including USB 3.2 Gen 2 Type-A and Type-C, for enhanced peripheral compatibility.

ASUS ROG STRIX B550-A offers immersive audio with its SupremeFX S1220A codec, delivering pristine sound quality for gaming and multimedia. The ROG Audio suite includes Sonic Studio III and DTS Sound Unbound for customizable audio experiences. Aesthetically, it features Aura Sync RGB lighting, customizable across connected devices for a personalized gaming setup. The ASUS ROG STRIX B550-A GAMING Motherboard is engineered to deliver high performance, extensive connectivity, and a visually appealing gaming experience, making it a versatile choice for gaming enthusiasts.

ASUS ROG STRIX B550-A GAMING Motherboard F.A.Q.

How do I update the BIOS on my ASUS ROG STRIX B550-A GAMING motherboard?

To update the BIOS, download the latest BIOS file from the ASUS support site, extract the file to a USB drive, and use the EZ Flash utility in the BIOS menu. Restart your system, enter the BIOS by pressing F2 or DEL, navigate to the Tool menu, and select ASUS EZ Flash 3 Utility. Choose your USB drive and the BIOS file to begin the update.

Why is my ASUS ROG STRIX B550-A GAMING motherboard not detecting RAM?

Ensure that the RAM modules are properly seated in the DIMM slots. Check the motherboard manual for the correct slots to use based on the number of modules. If the problem persists, test each RAM module individually to identify any faulty sticks.

What is the maximum RAM capacity supported by the ASUS ROG STRIX B550-A GAMING motherboard?

The ASUS ROG STRIX B550-A GAMING motherboard supports up to 128GB of DDR4 RAM across four DIMM slots, with a maximum speed of 4400 MHz (OC).

How do I enable XMP profile for my RAM on the ASUS ROG STRIX B550-A GAMING motherboard?

To enable XMP, restart your system and enter the BIOS by pressing F2 or DEL. Navigate to the AI Tweaker menu, find the AI Overclock Tuner option, and set it to XMP. Save your changes and exit the BIOS.

What should I do if my ASUS ROG STRIX B550-A GAMING motherboard fails to boot?

Check all power connections to the motherboard. Ensure the CPU is properly seated and that the RAM modules are securely installed. Disconnect all peripherals and boot with minimal components. Clear the CMOS using the jumper or by removing the battery for a few minutes.

How can I connect RGB lighting to my ASUS ROG STRIX B550-A GAMING motherboard?

Connect RGB strips or devices to the RGB headers on the motherboard. Use the Aura Sync software to control lighting effects. Refer to the motherboard manual for the location of RGB headers and compatibility.

What are the storage options available on the ASUS ROG STRIX B550-A GAMING motherboard?

The motherboard supports up to two M.2 drives (one PCIe 4.0 x4 and one PCIe 3.0 x4) and six SATA 6Gb/s ports for SSDs or HDDs.

Can I use a PCIe 4.0 NVMe SSD with the ASUS ROG STRIX B550-A GAMING motherboard?

Yes, you can use a PCIe 4.0 NVMe SSD in the M.2_1 slot, which supports PCIe 4.0 x4 speeds for faster data transfer. Ensure your CPU supports PCIe 4.0 as well.

How do I reset the BIOS to default settings on my ASUS ROG STRIX B550-A GAMING motherboard?

Enter the BIOS by pressing F2 or DEL during boot. Navigate to the Exit menu and select Load Optimized Defaults. Confirm your choice and save the changes by selecting Save & Exit.

Is the ASUS ROG STRIX B550-A GAMING motherboard compatible with Ryzen 5000 series CPUs?

Yes, the motherboard is compatible with Ryzen 5000 series CPUs. Ensure your BIOS is updated to the latest version that supports these processors for optimal performance.