Origineel bericht door: Lena Fox ,
Well, I can tell you this. the beeps are supposed to indicate errors (RAM Failure, Boot Drive not found, etc). You already concluded it's not the RAM, Harddrive, Motherboard, PSU or I/O ports. But it seems the only logical option would be the screen itself not working. Try replugging the screen of the computer itself if that's possible. Otherwise try to take it to a repair shop and they can most likely fix it.