- Which CPUs does this board support?
- It uses the AM5 socket and lists Ryzen 3, 5 and 7 plus Athlon support. Ryzen 7000, 8000 and 9000 desktop chips fit, but check the ASUS CPU support list for the exact model.
- Do I need a graphics card?
- Only if your CPU lacks integrated graphics. The board has HDMI 2.1 and DisplayPort 1.4 outputs, so a Ryzen chip with built-in graphics can drive a display directly.
- How much memory can it take?
- Four DDR5 slots hold up to 256 GB, with memory speeds rated to 7600 MHz. Higher speeds depend on the kit and the CPU's memory controller.
- Is PCIe 5.0 supported?
- No. The main x16 slot and M.2 run PCIe 4.0, which is enough for current graphics cards and SSDs but below B850 and X870 boards.
- Does it have Wi-Fi or Bluetooth?
- No. Networking is a single RJ45 LAN port, so add a Wi-Fi card or USB adapter if you need wireless.
- What is the CSM suffix?
- CSM stands for Corporate Stable Model. ASUS guarantees a longer, more stable supply and support window, which suits businesses and system builders rather than enthusiasts.
- Where is the ASUS Prime B840M-A-CSM cheapest?
- At Asus, for $177.13, as of our latest check.