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Windows 7: PC Shuts down by itself

03 Feb 2012   #1

Windows 7 Professional 32bit
PC Shuts down by itself

20secs after logging in, my pc shuts down by itself..I have to unplug it before it will turn on again but eventually if will turn off again after few secs... is it a PSU or Motherboard failure? I check my Mobo and PSU and there was no blown capacitors...but I can smell a a burnt me pls..=]

My System SpecsSystem Spec
04 Feb 2012   #2

Microsoft Community Contributor Award Recipient

Windows 10, Home Clean Install

Most likely overheating. Hope that its not too late
Test temperture.
Cupid is good software for the test.
My System SpecsSystem Spec
04 Feb 2012   #3

Windows 7 Ultimate 64bit

hard to say without seeing the machine in person.
If you smell something burnt inside, you have to figure out if it's the PSU or mobo or both.

Also, when you say "20 seconds after logging on it shuts down", are you saying that it will boot to Windows and then shut down?
Because you then state that after you unplug it and turn it back on it turns off after a few seconds.
My System SpecsSystem Spec

04 Feb 2012   #4

Windows 7 Home Premium 64 Bit

If you have a multimeter handy or can borrow one, Britton30 has a great PSU Testing thread. You can click on the image to enlarge it, or save the full image and view bigger on your own machine.
My System SpecsSystem Spec
04 Feb 2012   #5

Windows 7 Ultimate 32 bit

.bat file causing a shutdown?
My System SpecsSystem Spec

 PC Shuts down by itself

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