X62J/M60J Gpu overheating problem :(

Starting to have overheating problems with my notebook, its about 13month old. I opened it to look for any dust about 1month ago but there's nothing. My idle temp on Gpu is about 55-60c and when gameing 73-80c has topped 93-97c.. And the cpu 55-60c And when im gameing at 65-74c and tops on 82c, and after that the computer pretty much freezes and shuts down.

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