I have a dell Optiplex Desktop GX280 with a very very loud cpu fan.
When I turn on it gives amber light but no boot, just the fan starts going mad. I have
onboard graphics card. I have
Disconnected all drives and left only motherboard connected,
Reset bios no luck
The only thing is when I take the cpu out and leave cpu fan connected then the fan works fine (no loud noise) so I think it is not the fan but the cpu or a the motherboard / mother board sensor.
I would really appreciate some help as I dont have a clue what it could be. I dont get any beeps from the motherboard at all on boot-up with cpu or without. Motherboard power light goes on inside case.
Please please any advise