So I bought me a new graphic card. When I instaled her the sound stopped working. So I read on the forum I need to change in BIOS on board sound on. But I can't access the BIOS. The F10 is the setup F12 network F9 boot they run good. I tried pressing del, tab F1 not a single works. When I press F2 or TAB it says "keyboard error". I don't know what to do please help.