PC is a pain till its warmed up

[gasspark]

Bit strange this but each morning I turn my PC on and for about an half an hour it turns it self off, this happens about 6 times then once warmed up no problem its stays on for the rest of the day. I have checked all the connection on the PCB, the tranformer is giving out its proper voltages, tested when both cold and hot and there the same, some how feel I will be just turning the PC on 6 times every morning till I get my next one.

That is unless someone can point me in a new direction, fingers crossed

Regards

John

[BillyGoat]

Is this a desktop or laptop?

Remember an odd occurance of this many moons back with a desktop and a failing power supply - showed similar symptoms. Also had a REAAAAAAAAAAAAAALY high pitched whine from the caps, which were on the way out.

Took the side of the case off and stuck a hairdrier in the psu vent for a while to warm it up - computer was fine. PSU replaced, job done.

Intermittant faults are a pig to track down.

Try a visual check of the main board too, make sure that all is well there....could be anything!

BG

[kellys_eye]

Very symptomatic of capacitor failure in the PSU - a new PSU is a relatively cheap 'fix'.

[gasspark]

Looked at both posts and going to go for a PSU change.

thanks for the replies will let you know if that fix's the problem

regards

John

[kellys_eye]

If your mobo is old then it could even be the capacitors around the CPU socket. If you get the chance to open the case, look for 'bulging' of the capacitor tops - easy to spot. Fixable, but not by the average handyman.....

[Megaross]

Oh I dunno, I do PCB repair I think people make it out to be a lot more difficult than it actually is.