Toshiba laptop shutdown and keeps restarting

Scarlet2015

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Jun 17, 2017
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My laptop Toshiba shuts down and then it keeps restarting, until I perform a hard reset (unplug, take out battery and press power button for 2 minutes), then it works but only for a few minutes, max 2 hours, after that the problem repeats itself, HDD and RAM tested 100% health
P.D. It isn’t an overheat problem, all tests already done.
Toshiba Satellite P755, core i3, 4Gb Ram
 
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