Hello all My friends PC is making a buzzing noise as if something has gone. When he turns on the PC the main light comes on but that's it, the operatng system and the post won't start, and it starts making a buzzing noise. I think it is the processor but I am not sure. Any advise is very much appreciated.
that is the psu doing the noise, try another psu & disconnect all cables to drives, remove all cards & ram except videocard & 1 stick of ram.
check the can shaped objects on the motherboard as they are capacitors, they are supposed to be flat topped not domed
dealt very much is cpu but not certain as i can't see the problem. friend's wife's mother's old pc had a domed capacitor in the psu so had power but no post. replaced the capacitor & the pc posts with no problem.
I changed his motherboard and took back the PSU for another one and now all is working fine. I still don't know why this happened. Money is tight but buying new parts is better in the long run. Thank you very much ddp for all your help and advice, I have learned something new about compacitors and I appreciate your help.