I've had warnings and shut downs before because of heat, but it usually doesn't happen. My fans suck, so I just keep my desk fan handy. It works.

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"Yeah, hit squad is in the house! All right baby! 60 minutes, balls out.
Let's open up the whole can of kick ass and kill 'em all!
Let the paramedics sort 'em out!"
Alvin Mack from The Program