So are you guys suggesting he just leave it there and do nothing? While there are defiantly duds out there, you cannot assume that no one knows what they are doing. There are shops out there that know what they are doing, specifically local shops (excluding big box stores) which have a harder time earning a good reputation, so they normally have knowledgeable staff.
jammer1001, can you do a number of things for me.
-Firstly, just because your room is cool doesn't mean your hardware is going to be cool. Please remove the CPU heasink, clean off all the thermal paste, reapply the thermal paste and remount the CPU heatsink. Have you ever applied thermal paste before? Do you need suggestions on how to do it?
-Double check that the video card fan is indeed running, they tend to die without warning.
-Next, one of the sticks of RAM could be faulty, I suggest trying trying to install windows with only one stick in your motherboard and see what this produces.
At this point in time, I believe it's a heat related issue, but there is no way of finding this out without a little trial and error.