I finished a self build only to discover the mobo was faulty. The replacement is about to arrive today but I have a new problem. When I dismantled everything I had to seperate the heatsink from the CPU. Although it has never been used yet will I still have to clean off the the thermal compound thats on it and replace?
Rossi#1, not only do you need to remove the compound, but you must make sure that it is immaculately clean. Even a small residue of dried compound will prevent the close mating of the two surfaces required to transfer about 100W of heat.
Funny thing, but I went into the chemist today and asked for isopropyl alcohol and got a look like I just asked for arsenic. Anyway, my mums nail varnish remover did the trick and hopefully I got the right amount compound on it. Put the case together today and pleased to say my first self-build finally started up. It really is satisfying.