I have been running my cpu on stock heat sink for about 6 months and my cpu temperature now rise up to 60C...then i opened up my system unit to check on my cpu`s thermal paste...its already harden and when i plug in the stock heat sink i acidentally broke 2 of the legs and now i decide to buy a new one which is Cooler-Master-GeminII-S524...
my specs are:
INtel i5 3550 @3.3GHz
Asus P8b75 M LX
2x 4 GB Corsair Vengeance
Cooler Master Elite 311 Series MiD tower