m11x r2 i7 (1.2 ghz) heating issue

im from malaysia and am wondering if the climate here is affecting my m11x heat or should i call dell support and claim warranty

i used to own an r1 u7300 core 2 duo 1.3 with 4gb ddr3 and naver had any heating issues even while overcloked

i installed this software called core temp to monitor my laptops processor heating

so now my laptop is not even overclocked and is monitoring 50c and 80-90c while gaming within one hour

when i over clock it to 134mhz even, the processor heat goes up to 105c within 15min and auto shuts down. (games: fifa 11, crysis 2, darksiders)

IS THIS NORMAL? i have called dell multiple times and no one can give me an answer...

ps: all my drivers are up to date