I'll be bidding a fond farewell to the EP45 club as of today. I've now switched to my X58A-UD3R and 920 D0 which is already stable at 4.3GHz after a very short session of tweaking. I've enjoyed taking part in this thread and am grateful for all the help in this nice little sub-community on XS. I'll no doubt pop in at some points as I'll have a EP45-UD3P / USB3P and vmodded Extreme up for sale and it'd be good to see how others fare on them