In search for a quiet PC, Ive just replaced my QTEC 550w psu with a Hyper 580w PSU..... Result = Not much reduction in noise. Prime noise culprit is my Socket A CPU Heatsink/Cooler. My motherboard is an ABIT NF7 Looking around on the overclockers website, i cant seem to find any socket A cpu coolers.....so can anyone reccomend a good cooler which is also fairly quiet. My current cooler is a big mass of copper with a 80mm fan on top which is very loud. My current cpu fan can be heard from downstairs, its that loud! So what do you guys reccomend? Can i just replace the fan with something bigger or quieter? or will i need to replace the heatsink too.