Better yet, run your favorite game for 10 minutes and leave it running, pull the cover off and feel the heat sink, if its real hot you have a problem, mine feels like about room temp, this way you don't have to spent 50 bucks and 5 hours setting up a temp sensor system.
Generally speaking, if pc components feel real hot to the touch they're too hot.
Yea i know, most people don't stick fingers in running pc's, just be careful.
The itsy bitsy spider climbed up the empires state building, along came goblin, wiped the spider out