Daniel120201 :
Deus Gladiorum :
How old is it? Assuming that the problem isn't from an inefficient CPU fan/heatsink (consider upgrading over stock if you haven't already), the issue could be dried out thermal paste. I think it dries out every 6-8 months or something like that. Could be wrong, but how long has it been? You may just need to clean off your CPU and apply some more. Also, have you removed the CPU heatsink recently at all? Removing the CPU heatsink breaks the link between the thermal paste and the heat sink and will require another cleaning and some new thermal paste.
Got it about 1year and 1 month ago
Yea, it's likely dried out thermal paste assuming you haven't replaced the paste since you got it. If you don't have any at home, you can get thermal paste from Newegg or Microcenter for around $6 - $10. Make sure you have some 99% or pure isopropyl alcohol as well and some lint free coffee filters to clean it off (the former can be bought from a pharmacy also for around $6 - $10 if I remember correctly). The coffee filters are good for cleaning, but I've also used toilet paper and still gotten the job done, just remember to be careful. I wouldn't recommend substitutes for the alcohol.
You need to clean off your CPU first and get rid of the excess dried thermal paste. About a 10 minute clean did the job for me, just apply the alcohol to the coffee filter/toilet paper of your choice. Don't touch the pins on the bottom of the CPU (assuming you've taken the CPU out of your Motherboard), you don't want to bend them but don't worry too much about getting a little alcohol on the pins. Assuming it's not too much, it'll dry quickly. Your focus is really just getting the thermal paste off the top and edges of your CPU. You don't have to dry off the CPU after you're done as the alcohol will evaporate almost immediately.
Once you're done, reinsert the CPU into your motherboard and apply the TINIEST bit (and I seriously mean tiny) to your CPU and gently put the heatsink back on clipping everything in place. If you need visuals for this whole process (I did) there are plenty of videos on YouTube and plenty of walkthroughs with pictures for how to do this. Good luck, and let me know if you need anything.
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