From: Stefan Patric on
On Fri, 05 Feb 2010 19:06:46 +0000, Jason Stacy wrote:

> I observed a strange problem with my computer. Once every approx.3 month
> I cannot turn on my computer after shutdown. It seems to be dead.

Does the power supply fan run when you turn it on after a shutdown, even
if the computer doesn't?

> After I plugged out power cable and plugged it in after 10 minutes and
> wait period of approx 2-3 hours it works.

Could be a bad power supply. Replace it. If the problem goes away, that
was the problem.

> Does my Power supply unit device need a "warm up" period?

No. Should be instant on.

> Its a be quiet BQT E5 model 400 W

How old is it?