Hey there,
Recently I got an Asus P6T Deluxe (X58) and have an I7 920 OC'd on it @ 4ghz. I noticed earlier that my clocks had gone down to 2.4ghz and so I quit my game, ramped up my fan speed and a few mins later they returned to 4ghz. I touched the the big heatsink in the middle of the mobo...