I've had some problems with cold booting this board below -80 C. Warm resets are okay, but after hard reset I have to warm up - any ideas what that might be?

It also seems to have the same "tiring" syndrome Crosshair III had. After 2-3 hours it won't bench at the same clocks anymore, but that might be related to my insulation method and something on the board freezing too much.