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Explain this one...

C

coolermaster

Junior Member
A desktop PC.

You press the power button.

Nothing at all happens.

Leave it a couple of hours. It turns on perfectly.

I have never understood this phenomena...have you ever comes across this...what causes it?
 
Are you pressing the power button again or it just turns on by itself? My guess is something to do with bad capacitors.
 
Problem: You have a desktop PC that does not turn on when the power button is pushed. No fans. No LEDs on mobo. Then after a couple of hours the power button would be pressed and the PC turns on.
 
NExt time it doesn't turn on, remove the power button connector from the MOBO and start it with a screw driver. IF it turns on without issue, then your power button is screwy.
 
This exact phenomena have occurred many times throughout my ~15 years with several computers. (and friends computers too)

I have noticed this happening most of the times after moving the PC. For example moving it from or to a LAN-party. And I think it has to do with temperatures from being out-doors etc.
It has also happened a few times after trying to boot the PC while having left the windows open for several hours.
 
I hate to admit it, but I have a system like that to. But with mine it's not a power issue, it somehow there is no connection to the screen. Y'know orange led. So I turn it of and on and voila full contact.

I always attributed that to the system personality get me. 🙂
 
Another thing to try- pull the power cable from the back of the pc and let it sit for a few minutes, reconnect and try again. Usually caused by a faulty power supply.
 
Most of the time when have seen this it has ended up being a power supply issue. Try the screw driver to start it but after that see if you can barrrow someones PSU and try it with a replacement PSU.
 
IntelEnthusiast said:
Most of the time when have seen this it has ended up being a power supply issue. Try the screw driver to start it but after that see if you can barrrow someones PSU and try it with a replacement PSU.
Click to expand...

I agree with Mr Intel on this one, I used to be a computer tech for a living and delt with this dozens of time and 90%+ of the time it turned out to either be a PSU issue or a grounding issue.
 
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