07-20-2010, 06:01 AM
Take a can of dust off and spray your vent. How old is the laptop? The cooling putty that's on computers may have eroded. Does it turn off only when playing games? Or does it do this when doing simple things such as browsing the web? Is there an intake vent on the bottom? Is it clear of obstructions while using it? Is the outbound vent where the fan pushes the hot air out clear of obstructions? This includes setting the laptop on your lap while using it and laying down or sitting.