im wondering as the sandy bridge is out of my league altogether and im not sure which particular sandy bridge model of cpu it was i read about , was a fair while ago now, but ive read there was a tim issue between the chip and the ihs plate (cant remember whether it was bad tim or just poorly applied from factory) which was causing excessive heat which affects performance and they delidded the cpu and retimmed and temps went down considerably allowing for better oc ability and also for just normal running