Download speedfan from here, and report to us your system temperatures please:
http://www.almico.com/sfdownload.php
Basically your notice from even loading Internet explorer your Cpu usage will rise upto or around 40% just that jump from an idle 2% will increase your tempreture by 5-10c degree's. So playing a game will make your graphics work twice as hard and have your cpu on a load of 40% or above with this sort of increase in your system may rise 15c so the fans will enable, to keep your laptop cool. Laptops are not as variable as a desktop pc, laptops hold alot more heat and therefore make hardware fry easier without the cooling. It maybe worth investing in a cooling pad, these can bring your laptop down a few degree's. Make sure vents are kept clear so dont squish the laptop into the carpet or on a blanket because blocking the fans will overheat or cause bad airflow. Hope this has helped.
Regards,
__________________
- Dean
*National Diploma Software Development
*National Diploma Hardware Route