I have a PC 5-year-old made a huge noise when used for heavy tasks rendering, so I started by disassembling and cleaning it carefully fans (case and processor). I go back there and not better, only one solution: Change the thermal paste between the CPU and the fan. So I dismantled again removes the cooling device (easy 4 Quick screw turn) and there a whole heap of thermal paste dry, I scratched a little with a cloth and clean once I apply the middle half of tube. Presenting the fan all the dough will spread evenly. I go back every launches new calculation made and the miracle! more engine noise ... So all in all for a price any modest sum the result is impressive. Also with this tube you can do 2 PC without problems or when a processor and a graphics card. It seems to do it after 2 years. Instead of changing your noisy PC you can keep using it. This brand is increasingly recognized as one of the best performing thermal paste.