Possible PSU problem?

bignev72

bignev72

bignev72

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Joined
22 Mar 2012
Posts
1,161
Hi Guys,

This is a bit of a strange one.

My machine will power on fine however if I have my PC on for a long time and then turn it off. It won't boot up again.

It appears to power up (everything spinning etc - no beeps) but there is no output to the screen. Sometimes if I turn it off and then on again it will then power up normally straight away but generally it just does the same thing. If I then leave it for about 15-30 minutes it will turn on fine.

When the machine is on it works fine and I can restart. This is just a problem with cold booting.

It's not a major problem because normally when I turn my machine off I am finished with it for the day. But sometimes if I forget to do something and immediately try to turn it back on it can be annoying.

Does it sound like a PSU problem to you?
 
Sliver said:
I doubt it's the PSU. It could be a couple of things. Overheating maybe the culprit. Is your PC dusty inside ? Are all the fans running ?

I would monitor your temps just to make sure it's not a heat problem.

I'm not saying it's not the PSU, it's just that PSU's tend to simply die rather than drop off slowly.
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My machine runs between 40-60C so hot but not overheating I would say. Surely if it was overheating it would hang but it doesn't. It runs fine.

It's not dusty inside and all the fans are running.
 
Sliver said:
Ok. Well you could monitor your PSU voltages to see if the rails are pumping out enough voltage. It is possible that one of your rails is undervolting.

I would check Event Viewer too, just to see what is being reported.
Click to expand...

So I need to get a multimeter then to do this?
 
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