[header] How to apply thermal paste [title] Choose the proper thermal paste. [step] Most of the basic thermal grease compounds contain silicone and zinc oxide, while more expensive compounds contain excellent heat conductors such as silver or ceramic. The advantage to the silver or ceramic thermal grease is that you will have a more efficient heat transmission. 
However, the basic thermal grease will sufficiently fit the needs of most people. [substeps] If you are planning on overclocking your computer, try to get thermal paste comprised mainly of silver, copper, and gold.