I have an intel 3930K with the intel air heatsink and fan which has a blue LED. I want to replace that with a new heat sink and fan that has no led(I already purchased). Do I just power down my system and remove the heatsink and unplug it, wipe the top of the processor clean with a microfiber towel damp with rubbing alcohol and install the new one(thermal paste pre applied)? anything else to look out for?