I have trouble with overheating. When playing tf2 temperatures get into the 90s. I have CoreTemp configured so that tf2 is killed when I hit TjMax (which I think is 95C on the i5) but my computer occasionally still crashes completely without warning.
I have it propped up on books like so
http://i.imgur.com/xDo0Kow.jpg
I've tried undoing the bottom panel to blow the dust out but there's only one screw and it seems like it's attached with plastic anyway.
I've put USB fans by the side but they're loud and don't help much afaik.
This is my computer
http://www.dell.com/us/p/inspiron-n411z/pd
Any help is appreciated unless you say buy a desktop.
Willing to give you any additional info regarding the problem.