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My compaq computer keepd shutting down unexpectedly. It then has to be disconnected from the power source , reconnected and restarted. It does this after it has been on for a while or if it is on and not being used. Could it be that it is over heating?

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Yes, overheating is the likely problem -- dust inside the laptop is a good (though unwanted) insulator.

Turn the computer off.
Disconnect the AC power.
Remove the battery.
Purchase a can of compressed-air, and give your computer a "blow-job" -- shooting through every possible vent and port on your laptop.

Also, check that the fan(s) "inside" the computer are working correctly, i.e., not seized-up.

Posted on Aug 31, 2010

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