Originally posted by: Amaroque
This is a bad idea. First off, you will have to increase the clamping pressure on your HSF to compensate for the height difference. Otherwise your CPU may end up running hotter. Also, remember all the crushed cores with the AXP's?
I've read about many people doing this, and most are not really getting any OC increase to speak of (some ended up with a decrease). Reason being is that heat is not much of a limiting factor on the A64.
If you want an increase in thermal performance, I'd suggest an XP-120, with AS5.