ASUS Prime B650M-A AX AMD B650(Ryzen 7000) Micro-ATX motherboard(DDR5, PCIe 5.0 M.2 support, 2.5Gb Ethernet, Wi-Fi 6, DisplayPort, HDMI ,USB 3.2 Gen 2 ports, front USB 3.2 Gen 1 Type-C, BIOS FlashBack, CEC Tier II ready)
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Reviews(15)
What it says on the box. Board layout is good and caused no trouble during build, plenty of room between heatsink and memory slots, etc. Computer absolutely rock solid post-setup.
Factory bios did not POST consistently, and after about 5 boots, did not POST at all. Used the flashback recovery function to update it, and since then it has worked perfectly. The only thing that it's still lacking is bluetooth support in linux, which I'm sure is forthcoming.
Recommended, as long as you update the bios as your first step.
- decent price for the new zen 4 (ryzen 7000) cpus if you can get it working.
- the actual performance of zen 4, particularly with respect to thermal and power throttling, is very aggressive and very neat.
- three boards (with different hardware) all had stability issues (memory failures)
- default settings did not include the AMD-XMP (AMPS?) speeds, ran my DDR5 6000 at 4800.
Ive built about two dozen computers in the last 15 years and never had one fight me as much as this build did. Got the board (and two replacements) near launch. Three major issues:
- chipset driver signature errors means windows acts funny. This has been an issue for AMD for almost a year, and is not a hard problem to solve, yet it is not solved.
- tried three different bios versions hastily released near launch. All had problems.
- all three boards with different hardware had memory corruption issues, rendering the machine unusable after a few days.
I cannot recommend anybody touch this thing. I was trying to use it with (two different) 7700X and (three different) ddr5 6000/5600 kits. I sincerely hope your luck is better than mine.
Warranty & Returns
Warranty
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Manufacturer Contact Info
Website: https://www.asus.com/us/
Support Phone: 1-510-739-3777
Features & Details
- AMD AM5 Socket: Ready for AMD Ryzen™ 7000 Series Desktop Processors.
- DDR5 5600(OC)/5400(OC)/5200/5000/4800 ECC and Non-ECC, Un-buffered Memory.
- Ultrafast Connectivity: Wi-Fi 6, M.2 PCIe 5.0, Realtek 2.5Gb Ethernet, USB 3.2 Gen 2 ports, front USB 3.2 Gen 1 Type-C.
- ASUS OptiMem II: Careful routing of traces and vias, plus ground layer optimizations to preserve signal integrity for improved memory overclocking.
- Comprehensive Cooling: VRM heatsink, PCH heatsink, hybrid fan headers and Fan Xpert 2+.
- Aura Sync RGB Lighting: Onboard Addressable Gen 2 headers and Aura RGB header for RGB LED strips, easily synced with Aura Sync-capable hardware.
- CEC Tier II ready.
Specifications
| Brand | ASUS |
|---|---|
| Series | Prime |
| Model | PRIME B650M-A AX |
| Part Number | 90MB1CE0-M0AAY0 |
| CPU Socket Type | AM5 |
|---|---|
| CPU Type | Supports AMD Ryzen 7000 Series Desktop Processors* * Refer to www.asus.com for CPU support list. |
| Chipset | AMD B650 |
|---|
| Number of Memory Slots | 4x288pin (DDR5) |
|---|---|
| Memory Standard | DDR5 5600(OC)/5400(OC)/5200/5000/4800 ECC and Non-ECC, Un-buffered Memory* Supports AMD EXTended Profiles for Overclocking (EXPO™) OptiMem II * Supported memory types, data rate(Speed), and number of DRAM modules vary depending on the CPU and memory configuration, for more information refer to www.asus.com for memory support list. * Non-ECC, un-buffered DDR5 memory supports On-Die ECC function. |
| Maximum Memory Supported | 128GB |
| Channel Supported | Dual Channel |
| ECC Supported | Non-ECC |
| Buffer Supported | Un-buffered |
| PCI Express 4.0 x16 | AMD Ryzen 7000 Series Desktop Processors 1 x PCIe 4.0 x16 slot (supports x16 mode) 1 x PCIe 4.0 x16 slot (supports x1 mode) AMD B650 Chipset 2 x PCIe 4.0 x16 slots (support x1 mode) * Please check the PCIe bifurcation table on the ASUS support site |
|---|
| Serial ATA (SATA) | 8 x SATA 6Gb/s |
|---|---|
| M.2 | AMD Ryzen 7000 Series Desktop Processors M.2_1 slot (Key M), type 2242/2260/2280 (supports PCIe 5.0 x4 mode) AMD B650 Chipset M.2_2 slot (Key M), type 2242/2260/2280 (supports PCIe 4.0 x4 mode) ** The SATA6G_E12/E34 ports cannot support RAID. |
| SATA RAID | AMD RAIDXpert2 Technology supports both PCIe RAID 0/1/10 and SATA RAID 0/1/10 |
| Audio Channels | Realtek 7.1 Surround Sound High Definition Audio CODEC* - Supports: Jack-detection, Multi-streaming, Front Panel Jack-retasking - Supports up to 24-Bit/192 kHz playback Audio Features - Audio Shielding - Premium audio capacitors - Dedicated audio PCB layers * A chassis with an HD audio module in the front panel is required to support 7.1 Surround Sound audio output. |
|---|
| Max LAN Speed | 1 x Realtek 2.5Gb Ethernet |
|---|---|
| Wireless LAN | Wi-Fi 6 2x2 Wi-Fi 6 (802.11 a/b/g/n/ac/ax) Supports 2.4/5GHz frequency band |
| Bluetooth | Bluetooth v5.2 |
| Back I/O Ports | 2 x USB 3.2 Gen 2 ports (2 x Type-A) 2 x USB 3.2 Gen 1 ports (2 x Type-A) 4 x USB 2.0 ports (4 x Type-A) 1 x DisplayPort 1 x VGA port 1 x HDMI port 1 x Wi-Fi Module 1 x Realtek 2.5Gb Ethernet port 3 x Audio jacks 1 x BIOS FlashBack button 1 x PS/2 Keyboard/Mouse combo port |
|---|
| Onboard USB | 1 x USB 3.2 Gen 1 connector (supports USB Type-C ) 1 x USB 3.2 Gen 1 header supports 2 additional USB 3.2 Gen 1 ports 2 x USB 2.0 headers support 4 additional USB 2.0 ports |
|---|---|
| Other Connectors | Fan and Cooling related 1 x 4-pin CPU Fan header 1 x 4-pin CPU OPT Fan header 3 x 4-pin Chassis Fan headers Storage related 2 x M.2 slots (Key M) 8 x SATA 6Gb/s ports Miscellaneous 3 x Addressable Gen 2 headers 1 x Aura RGB header 1 x Clear CMOS header 1 x COM Port header 1 x Front Panel Audio header (AAFP) 1 x S/PDIF Out header 1 x Speaker header 1 x SPI TPM header (14-1pin) 1 x 10-1 pin System Panel header |
| Form Factor | Micro ATX |
|---|---|
| Dimensions (W x L) | 9.6" x 9.6" |
| Power Pin | 1 x 24-pin Main Power connector 1 x 8-pin +12V Power connector |
| Windows 11 | Supported |
|---|
| Features | ASUS 5X PROTECTION III - DIGI+ VRM - LANGuard - Overvoltage Protection - SafeSlot Core+ - Stainless-Steel Back I/O ASUS Q-Design - Q-DIMM - Q-LED core - Q-Slot ASUS Thermal Solution - VRM heatsink design ASUS EZ DIY - BIOS FlashBack button - BIOS FlashBack LED Aura Sync - Aura RGB header - Addressable Gen 2 headers |
|---|
| Package Contents | Cables 2 x SATA 6Gb/s cables Miscellaneous 1 x ASUS Wi-Fi moving antennas 1 x I/O Shield 1 x Screw package for M.2 SSD Documentation 1 x User guide |
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| First Listed on Newegg | October 10, 2022 |
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