text: when i turn on the computer it starts but no image comes up and i can't hear the hard drive loading? i put it together from working parts that i had lying around. i turn it on and the fan start but nothing comes up on the monitor, the monitor doesn't even come out of standby.  like i said in the topic i don't hear the hdd going either.  i'm not sure what the deal is. did you wear your esd strap when assembling? esd may have damaged the motherboard. if you get beep codes, consult the manufacturer documentation to see what it means, may just be a bad vid card.