No Post no Beep - Intermitent

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Nate1

50 posts

Geek

#88534 17-Aug-2011 20:06

Have an old PC (Athlon X2 64, 4GB, 2 * 250GB , 1 * 640GB , 8400GTS 328GB (I think cant remember))

Has been having problems for a while, - I think heat is the cause for one of the problems though all fans are working, it will either freeze or shutoff if running hot - core temp running indicates this. Have some fans around Ill install at some point - but may be related to the other issue.

Though the problem that is more odd is it will on occasion not start, this last happened about a week ago though worked again the next day - I don't think is temp related. It will power up (LEDs, Fans running PSU CPU and Exhaust fan) but provide no Post beep and no Image to the monitor, (Monitor works).

What are the likley problems? Especially since it is intermitent?

Niel

3267 posts

Uber Geek

Trusted

#508238 17-Aug-2011 21:26

Capacitors are failing. Probably in the power supply but maybe on the motherboard. Capacitors should be flat on top. Very slight bulging is okay as it might be the normal shape, but you will notice a real bulge if it has failed. But as said most likely the power supply.

The crashing is possibly, but if not (since you mention running temperature monitoring software) then perhaps the heat sink paste has dried out so there is insufficient thermal conduction and the processor overheats. I assume you have already cleared dust from the heat sink...

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Nate1

50 posts

Geek

#508331 18-Aug-2011 07:42

I reset the CPU about a year ago when this all started and gave it a good dust, will have a look at the MB capcitors, and get a nice new PSU - will be able to use it for another PC at some stage Im sure - hopefully that will be the end of it. - Will get a large one and add an extra fan to help with the temp.