ASUS PRIME B550M-A WIFI II - ASUS - 90MB19X0-M0EAY0
AMD B550 (Ryzen AM4) micro ATX motherboard with dual M.2, PCIe 4.0, Wi-Fi 6, 1 Gb Ethernet, HDMI, ...AMD B550 (Ryzen AM4) micro ATX motherboard with dual M.2, PCIe 4.0, Wi-Fi 6, 1 Gb Ethernet, HDMI, DVI-D, D-Sub, SATA 6 Gbps, USB 3.2 Gen 2 Type-A, and Aura Sync RGB lighting support. Features Socket AM4 3rd Generation RYZEN DDR4 Support mATX Form Factor. Newest Addition to the Prime Series, the ASUS Prime B550M-A (Wi-Fi) II is perfect for everyday users who want stable performance in a smaller form factor. It is expertly engineered to unleash the full potential of 3rd Generation AMD Ryzen processors. Ram-packed with features like the ground-breaking PCI-E 4.0 technology for lightning speeds, a robust power design, USB 3.2 Gen2 Type-A Rear IO connectivity, ASUS AURA RGB Header, comprehensive cooling solutions and intelligent tuning options. Prime B550 series motherboards provide daily users and DIY PC builders a range of performance tuning options via intuitive software and firmware features. Comprehensive controls form the foundation of the ASUS Prime series. The Prime B550 motherboard packs flexible tools to tune every aspect of your system, enabling you to tweak performance settings to perfectly match your needs. Quick feature list - Micro ATX form factor, VRM & PCH heatsinks, Digi+ VRM control, dual band WiFi, UEFI BIOS, EPU & Fan Xpert 2+, audio shielding and LED trace illumination, Aura Sync RGB header, DVI/HDMI output, USB 3.2 Gen 2 connectivity, Gigabit LAN, SATA 6Gb/s & PCI-Ex 4.0 M.2 support, DDR4 memory and 7.1 channel HD Audio. CPU: AMD Ryzen 3000, 4000 G-Series, 5000, 5000 G-Series. Chipset: AMD B550. Memory: 4x 288-pin sockets supporting up to 128GB of DDR4 4866 (OC) memory. Audio: Realtek 7.1 channel HD audio codec. WiFi: 2x2 WiFi 6 (802.11a/b/g/n/ac/ax) with Bluetooth v5.2. LAN: Realtek Gigabit LAN controller. I/O: 4x SATA 6Gb/s, 2x M.2, 1x PS/2, DVI-D, HDMI, VGA, RJ45, 3x audio, 4x USB 3.2 Gen 1, 2x USB 3.2 Gen 2. Power: 1x.
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Product Information
Full details
The ASUS Prime B550M-A WIFI II is a micro ATX motherboard designed for users seeking a compact yet powerful solution for their AMD Ryzen-based systems. It offers a balance of performance, features, and affordability, making it ideal for everyday use and DIY PC builds. With support for the latest Ryzen processors, PCIe 4.0, and Wi-Fi 6, you'll experience fast data transfer and seamless connectivity. However, its compact size may limit expansion options compared to larger form factor motherboards.
All features
Model Part Number
90MB19X0-M0EAY0
Brand
ASUS
Extended Product Information
FAQs
What kind of CPU does this motherboard support?
This motherboard supports 3rd Generation AMD Ryzen Processors (Ryzen 3000, 4000 G-Series, 5000, and 5000 G-Series).
How much RAM can this motherboard support?
This motherboard can support up to 128GB of DDR4 RAM.
Does this motherboard have built-in Wi-Fi?
Yes, this motherboard has built-in Wi-Fi 6 (802.11ax) with Bluetooth v5.2.
How many M.2 slots are available?
There are two M.2 slots available for NVMe SSDs.
What is the form factor of this motherboard?
The form factor is micro ATX.
How do I update the BIOS?
You can update the BIOS through the UEFI BIOS utility or using the ASUS EZ Flash 3 utility. Download the latest BIOS file from the ASUS support website.
Does the motherboard support RGB lighting?
Yes, it has an Aura Sync RGB header for connecting and controlling RGB lighting.
What kind of audio does this motherboard have?
It features Realtek 7.1 channel HD audio codec.
Troubleshooting
Computer won't boot.
Check all power connections, ensure the CPU and RAM are properly seated, and verify that the graphics card is correctly installed. Also, check the BIOS settings.
Wi-Fi not connecting.
Ensure the Wi-Fi antenna is connected. Check the wireless network settings, and update the Wi-Fi drivers from the ASUS website.
System is unstable or crashes.
Check RAM compatibility and run memory diagnostics. Ensure the CPU cooler is properly installed. Update the BIOS and chipset drivers.
No display on monitor.
Ensure the monitor cable is connected to the graphics card, not the motherboard (unless using an APU). Check if the RAM is properly installed and that the graphics card is seated correctly.
Slow performance.
Update drivers, check for background processes using system resources, and ensure storage devices are running optimally.
Pros and Cons
Pros
Supports the latest AMD Ryzen processors for excellent performance.
Offers fast storage with PCIe 4.0 M.2 slots.
Provides high-speed wireless connectivity with Wi-Fi 6.
Features a robust power design and cooling solutions.
Includes user-friendly UEFI BIOS and software for easy system tuning.
Compact form factor suitable for smaller builds.
Cons
Micro ATX form factor limits expansion options compared to ATX motherboards.
May require additional cooling solutions for high-end Ryzen CPUs.
Fewer USB ports compared to some larger motherboards.
Onboard audio may not satisfy audiophiles without additional components.
Can be complex to set up for novice users.
Setup, Compatibility & Care
Installation:
Install the CPU and RAM according to the motherboard manual.
Mount the motherboard in your PC case.
Connect the power supply cables.
Install the graphics card and other expansion cards.
Connect storage devices and case fans.
Compatibility:
Compatible with 3rd Gen AMD Ryzen Processors. Ensure your CPU is supported.
Supports DDR4 memory up to 128GB; check the QVL (Qualified Vendor List) for compatible RAM.
Compatible with Windows 10 x64 and Windows 11 x64 operating systems.
Care:
Handle the motherboard with care to avoid damage.
Use an anti-static wrist strap while working with components.
Keep the motherboard clean and free of dust.
Regularly update the BIOS from the ASUS support website.