Their 3.2GHz QX9770 processor was running at 5.4GHz on a X38 motherboard with DDR3 memory and a GeForce 8800 Ultra. To reach 5.4GHz the overclocked used a cascade cooler that keeps the processor at a chilly -85 to -100°C.
The processor was overclocked by Charles "Fugger" Wirth to a “mere” 5.4GHz for the presentation, although he’d hit 5.6GHz the day before. He still managed to break his own SuperPi world record by 0.1 seconds from 8.5 to 8.4 seconds. He also scored some 281,000 points in Aquamark 3 and apparently broke the world record in Cinebench 10, but happened to forget to tell the audience hoSource: TweakTown