i got my system in the open [without case] on my desk. when i open Crysis warhead the buzzing starts at the flash screens and gets lower at the menu. its not loud, you have to be within 2 feet of the psu to hear it. i know its not the fan. it sounds like air leaking out of a Balloon. it doesn't happen when im playing a game or at idle. im not using a UPS but im using a power strip. can the buzzing any cause damage.