Computer shuts down with no warning, then restarts

[Oogabob]

I am using Vista Ultimate and am on a fairly new computer, does anyone know
what is causing this? I've ruled out overheating and energy problems. I
set windows to not automatically restart and give me a blue screen on
crashing, but it still shuts down and restarts with no warning.

Is this a hardware issue? It's done this since I've gotten the computer but
it seems to be getting worse now.

 

[Mark L. Ferguson]

You have to suspect overheating. The CPU has a fan attached to it directly,
and some heat paste is supposed to be on there between the heat sink for the
fan, and the CPU. It's likely that connection is loose. If you need to
protect your warrantee by not opening the case, you should contact the
maker.

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[Richard in AZ]

YES, you have a hardware problem.
If it has been doing this since you got the computer, I hope you have not wasted your warrantee
period.
You need the vendor to replace the problem hardware, which you will not be able to identify, without
special tools.

|I am using Vista Ultimate and am on a fairly new computer, does anyone know
| what is causing this? I've ruled out overheating and energy problems. I
| set windows to not automatically restart and give me a blue screen on
| crashing, but it still shuts down and restarts with no warning.
|
| Is this a hardware issue? It's done this since I've gotten the computer but
| it seems to be getting worse now.

 

[Buddha]

I experienced a similar problem with my last system. The fan worked, the
vents were clear, but the Thermal Transfer Grease between the chip and the
heat sink was shot. I bought a tube of the grease for about 6 bucks, and
the problem was solved.

Buddha