Check device compatibility with RAM.
The Asus Prime B365M-K isn't compatible with DDR3 RAM?
8 x DIMM, capacity up to 64GB, DDR4 3300 (O.C.)/3200 (O.C.)/3000 (O.C.)/2800 (O.C.)/2666 (O.C.)/2400 (O.C.)/2133 MHz, non-ECC, un-buffered memory, not DDR3