I see a 99 on my bio's as well, look in the manual it will tell you, its just a code reference for POST, look it up, clearly its not passing that part of the POST, unhook everything except, the board, cpu&heatsink) and the 4/8 pin mobo connector and 20/24 pin mobo connector, see if it passes that part, or you get a different number instead of 99. Unhook all ram and hdd's and gfx cards etc etc, unless there is no integrated gfx, also a mobo speaker would help too,, to see what error codes are being thrown, since I'm assuming you haven't even installed windows yet and are just stock on a bios POST screen. Keep us posted.