u/Canned_H20

After installing it with and without an empty board, I get this white cpu light that turns on for a split second after I try turning on my pc or after pressing the flashing button on my motherboard ( after the bios light flashes for 10 seconds).

Unfortunately I had to put back my old motherboard in my computer since I couldn't solve the issue.

Any suggestions please?

Specs: B550 Gaming Plus / Arorus b360m gaming wifi Ryzen 5 5600xt / Intel I7 9700 RX 6700xt 4x4 ddr4 2666mhz 600w bronze psu