Re: help for a newb
try reseating the cpu with a new application of thermal compound if you have any.
also, before doing that, reset cmos by either using the jumper on the mobo, but if you cant find that just take the round battery out for a few minutes and put it back in.
(be sure to reset the time in bios before moving on to windows)
a few other things you can do while you have your case open is to dust it out with a air can, this may not fix your problem, but be sure to blow out your heatsink/fan very good.
and when you turn back on your pc, see if the heatsink fan is working.
hope you get it all fixed up.