Why does my PC spontaneously shut-down?


my computer keeps switching off although the tower is still on there seems to be nothing on the monitor. i now the monitor is working becuase i can switch it on for a little while then it will go off it does make a slight whistling noise before it goes off if you could help i would be most grateful


This question was answered on December 6, 2002. Much of the information contained herein may have changed since posting.

Computers which switch off spontaneously often have issues with overheating First, be sure all air vent pathways are clear for at least several inches Next, be certain both your power suppy and CPU fans are operative If your CPU is set into one of those nifty office console cubby-holes they make these days, it may not be getting the ventilation flow it needs.

Check the inside of your fan and case, and especially around the CPU heat sink for dust or pet hair A can of compressed air, purchased at office supply or electronics stores for just such purposes can help blow out the dust.

If that doesn't clear it up, a trip to the shop is recommended

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Posted by Robert of Mesa Community College on December 6, 2002