remove the heatsink from your computer, remove the fans and any electronic component attatched to the heatsink
run your heatsink through with water, removing all visible dry and oily dust built up... dip it in water if its required...
then, give it a coca cola bath

few minutes would do... then rinse your heatsink under running water again and dry it PROPERLY
(why? well my friend tried it and dipping your heatsink in coca cola removes oxidation on your heatsink... i dont know how it works but it just work... an old dull looking heatsink would just SHINE like before)
then attach all the electronics stuff back to the heatsink and apply thermal paste and mount it back on your comp
note: coca cola bath will remove most visible oxidation, but for best result... use metal polisher after dipping it into coke
This post has been edited by general_odin: Sep 19 2009, 02:17 PM