That psu noise is probably from its fan (bearings or blades) and will not get better. If the psu is under warranty, call Coolermaster. See their website. It's toll-free. Tell them your "Silent Pro" isn't because it "clicks"and you want them to issue a RMA to replace it at no charge (except the cost to ship it back to them). Do not open the psu. That would void the warranty and can be very dangerous. Replace the psu even if its warranty is over. If and when it fails, it can destroy your MB, memory and CPU. In the future, you might want to read reviews of psu's from Toms or JohnnyGuru b4 u buy one that is not on the recommended lists.