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PC doesn't start
Posted: Fri Jul 03, 2009 8:58 pm
by KingManULTRA
PC turned off out of the blue and won't start again.
Power light on PC is on. Monitor still works but but doesn't detect signal.
No BIOS screen.
No beep error codes.
Any ideas?
Re: PC doesn't start
Posted: Fri Jul 03, 2009 9:43 pm
by andyman
No idea but since your power light is on you are one better than me
Re: PC doesn't start
Posted: Fri Jul 03, 2009 11:44 pm
by AmIdYfReAk
Do you have a multimeter?
power the computer on as per normal, and test the 12V ( yellow ) and 5V ( red ) rails ( Use one of the mulex connectors )
i would bet that its the PSU.
Re: PC doesn't start
Posted: Sat Jul 04, 2009 1:06 am
by KingManULTRA
Tested the Power supply but it was actually the CPU. The CPU fan was totally full of dust and didn't spin anymore, which had caused the CPU to overheat. Not sure why it didn't start even after having cooled down though. Anyways.
Re: PC doesn't start
Posted: Sat Jul 04, 2009 1:25 am
by Scourge
That was going to be my guess before I got to the post where you figured it out. A dead CPU will give you no response whatsoever on screen. Nor any beeps.
Re: PC doesn't start
Posted: Sat Jul 04, 2009 1:49 am
by AmIdYfReAk
as would a PSU,
But i haven't seen a CPU/Mobo without a thermal shutdown in a long time..
Re: PC doesn't start
Posted: Sat Jul 04, 2009 1:56 am
by Scourge
Maybe the threshold was set to high in the BIOS. The ASUS mb I just bought had the CPU core voltage set way to high by default. Sometimes they don't set shit right it seems.
Re: PC doesn't start
Posted: Sat Jul 04, 2009 1:59 am
by AmIdYfReAk
King, is the cpu actually dead? or was it shutting off due to heat?