windows is shutting down on its own

[RWN]

I recently dusted out my case using compressed air and
removed my cpu heat sink and graphics card and cleaned
them as well. Now when i reboot my system it shuts down
just before my desk top appears or it runs for a few
minutes and then shuts down, then when I push the power
button to start up, the power will not come on unless I
unplug the power cord and plug it back in. Then it will
power back up and shut down again. I recieve no error
messages after shut down and my heat sink fan is working
properly. Help!

 

[Malke]

I recently dusted out my case using compressed air and
removed my cpu heat sink and graphics card and cleaned
them as well. Now when i reboot my system it shuts down
just before my desk top appears or it runs for a few
minutes and then shuts down, then when I push the power
button to start up, the power will not come on unless I
unplug the power cord and plug it back in. Then it will
power back up and shut down again. I recieve no error
messages after shut down and my heat sink fan is working
properly. Help!

Although it is a good idea to open up the case and make sure everything
is seated properly, especially all power supply connectors, your power
supply may be going. Replacing it is trivial and inexpensive, although
don't buy the cheapest one - get a good one.

Cheers,

Malke

 

[Manish]

I recently dusted out my case using compressed air and
removed my cpu heat sink and graphics card and cleaned
them as well. Now when i reboot my system it shuts down
just before my desk top appears or it runs for a few
minutes and then shuts down, then when I push the power
button to start up, the power will not come on unless I
unplug the power cord and plug it back in. Then it will
power back up and shut down again. I recieve no error
messages after shut down and my heat sink fan is working
properly. Help!

Hi
i had the same problem
i had to cahnge the power supply
i got 400 W

 

[Richard Urban]

Bet you that your heat sink is not sitting on the CPU correctly. This will
cause over heating and a subsequent shutdown. It only takes a few seconds
for it to over heat! By the time you unplug the power supply, plug it back
in and restart, the CPU has cooled enough to allow booting. Then it over
heats again.

Also, did you apply a tiny coating of thermal grease to the CPU prior to
installing the heat sink?

--
Regards

Richard Urban
aka Crusty (-: Old B@stard

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