Originally posted by: IlllI
check to see if the fan is still kicking in. if the fan stopped working then that might be the cause
or maybe some dust bunnies are blocking some vents or something
x2
I'm not 100% about how the calculator is on windows 7 but in xp if you turn it to scientific mode and type in 1,000,000 then hit the "n!" key it puts a significant load on the processor, dual cores may need this done twice to really peg them out. This is a fantastic way of seeing if a PC is shutting down due to thermal events because it heats up the processor about as hot as its going to get, and it will shut the pc down alot quicker then just letting it run surfing the internet. If you are getting shutdowns while just doing that, if you put the load on, it should shut down very quickly. You may need to get it cleaned out. Sometimes all it takes is popping the keyboard off, or a panel under neath. Other times its more complicated.
Laptop coolers are never necessary, all laptops are designed to keep them selves cool enough to run continuously under 100% CPU load... forever. Only dust or fan problems would cause them to shut down on a thermal event. Or in rare cases a motherboard problem.