"PRO" series CPU is compatiable DDR4 ECC UDIMM RAM. only CPU, Have Not Fan,Without Cooler. A320,B350,X370,B450 or X470 motherboard is suitable,but you maybe need update its BIOS version;.
AMD Ryzen 9 5900X 12-core, 24-Thread Unlocked Desktop Processor
AMD Ryzen 9 5900X 12 Core 24 Thread PCle 4.0 4.8GHz Max Boost
BAREBONES GAMING DESKTOP AMD RYZEN 9 5900X 64GB RAM 2TB SSD CU3.88.60
BAREBONES GAMING SYSTEM AMD RYZEN 9 5900X 64GB RAM 2TB SSD CU7.60.33
BAREBONES GAMING SYSTEM AMD RYZEN 9 5900X 64GB RAM 2TB SSD CU2.42.02
BAREBONES CUSTOM PC AMD RYZEN 9 5900X 64GB RAM 2TB SSD CU7.17.93
