I just built my pc yesterday. I have an i5 2500k. I have a stock cooler also. I installed it yesterday and noticed that the temps were at 91 degrees just on the bios. I have not done anything to it. i don't even have windows installed! I am using some cheap masscool stars 700 thermal paste. I tried reapplying it but it just made it worse! Now the temps are on the 100's range! The heatsink is a e97378 PLEASE HELP!