Gigabyte is releasing 2 models of PSUs that uses softwarecontrol, might be good for silence
http://www.gigabyte.com.tw/Products/Pow ... fault.aspx
Gigabyte Odin
Moderators: NeilBlanchard, Ralf Hutter, sthayashi, Lawrence Lee, Devonavar
How this works? In brief, it manages the following: output voltages and load on each rail, power fan speed tweak, localized or preset temperature monitors, power supply lighting control, proximity warning bells and even present user modes for performance, normal use or silent operation. This equates to absolute manageability.