I recently purchased this motherboard and the frist time i put the motherboard into the computer and i heard a pop sound out of the computer but never figured out what it was. I had the 11700K cpu and it would not post. I bought the 10700K and put it in it did the exact same thing. Don't think the CPU is bad. I think that the board is bad. It stops on code 99. The keyboard and mouse are functional
almost all the motherboard user manuals , bios beep codes explanations and its troubleshootings steps are mentioned, so read the user manual of motherbaord