I have the avove cpu on a Gigabyte board that will handle the oc pf this cpu and I actually did oc it to 4.0ghz very easily by raising the multiplier in bios. im just curious is the fan/heatsink that come with this cpu from AMD will properly cool it running 4.0ghz. if not what is a good fan/heatsink to use? I really dont wanna spend much on one, maybe $40 max. Thanks