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@kmount I can't find a thermal cut off temperature within the BIOS, so how can I bring that

thanks, i will try that

i have tried , still ip powers off when it starts loading drivers

-I tried both cases with and without battery but its the same story I have noticed strange thing, when i use live cd of windows XP it works fine , this confuses me

It powers off randomly, am n't sure if its over heating c'se i removed all the dust and apply new thermal paste btn processor and heat sink.

hi, I have A300 toshiba satellite, i used it for almost two years now.but few days ago It starts to powers off randomly each time it tried to load operating system, I replaced the hard disk with the new one but it doesn't fix the problem. Then i took it apart and clean the fan and mother board but still it behave the same. am wondering what could be the source of the problem ? If there's any one who knows the solution, please help cause am stuck and i don't know what else to do!