you all forgot to mention something
its called Heat compound Settling
when the special compound that helps transfer heat across the heatsink from the cpu dye, settles after awhile temps go up
i would also suggest if you are going to use the stock cooler that came with your cpu that you remove the crappy compound they put on it and use either silicon based or artic silver heat compounds
the gooey stuff they put on the heatsinks is really hard to remove completely
