Just overclocked my 3570k to 4.5GHz @ 1.27V with MSI z77 MPOWER motherboard and for whatever reason it refuses to downclock at idle. It's not windows power options related as have thoroughly checked that. To my knowledge everything in the bios is correct as well (I'll get snapshots ASAP) Anyone out their with the same board that can shed some knowledge on a newbie overclocker?