I'll show the Simplest way to Cool down your laptop's palm rest on the cheap.
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Step 1: Whats Hiding beneath?
Hard drive heats up the palmrest, Making it uncomfortable to type on.
My beast had not One, but two Of 7200 RPM HDDs in RAID 0.
Blazing fast and just as hot. Its common to reach temps of 45~46 on Idle.