ok i have an abit kt7a and the stock heatsink and fan is about to die and i'm looking at my options to replace it. i'd like to rplace it with just a heatsink and some thermal compond but i don't know if that will keep it cool enough. i don't overclock at all and i only game like a couple days a month. i'm trying to quit down my system and this is actualy the loudest part of it. so how cool does this thing need to be?