Xtreme Systems forums member PcCI2iminal got his grubby paws on an engineering sample of Intel's Core i7 975 XE with D0 stepping and managed to overclock it to 5015.48MHz.
The trtick here is that he managed to do this with conventional cooling, the processor was only cooled by the ThermalRight Ultra 120 RT heatsink with a 102CFM San Ace fan.
The overclocker also managed to run a round of SuperPI 1M with the chip at 4750MHz, the test was finished in 8.672 seconds.
The system used the Biostar TPower X58 motherboard, 6GB of Corsair Dominator DDR3-1866 memory, a 32GB Transcend SSD, Radeon HD 4890 and a Topower Giga-EZ 1000W PSU.
