User’s Manual

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Package contents
Check your motherboard package for the following items.
Motherboard 1 x PRIME B650M-A motherboard
Cables 2 x SATA 6Gb/s cables
Miscellaneous
1 x I/O Shield
1 x Screw package for M.2 SSD
Documentation 1 x User guide
If any of the above items is damaged or missing, contact your retailer.
PRIME B650M-A specications summary
CPU
AMD Socket AM5 for AMD Ryzen™ 7000 Series Desktop Processors*
* Refer to www.asus.com for CPU support list.
Chipset AMD B650 Chipset
Memory
4 x DIMM, Max. 128GB, DDR5 ECC and Non-ECC, Un-buffered Memory*
Dual Channel Memory Architecture
Supports AMD EXTended Proles 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.
Graphics
1 x DisplayPort**
1 x VGA port
1 x HDMI
®
port***
* Graphics specifications may vary between CPU types. Please refer to AMD CPU
specifications.
** Supports max. 8K@60Hz as specified in DisplayPort 1.4.
***Supports 4K@60Hz as specified in HDMI 2.1.
Expansion Slots
AMD Ryzen™ 7000 Series Desktop Processors
1 x PCIe 4.0 x16 slot (supports x16 mode)
AMD B650 Chipset
2 x PCIe 4.0 x16 slots (support x1 mode)
* Please check the PCIe bifurcation table on the support site
(https://www.asus.com/support/FAQ/1037507/).
Storage
Total supports 2 x M.2 slots and 4 x SATA 6Gb/s ports*
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)
4 x SATA 6Gb/s ports
* AMD RAIDXpert2 Technology supports both PCIe RAID 0/1/10 and SATA RAID
0/1/10.
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