sourceXtreme 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.
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Well, seems this is going to hit really high clocks on Ln2, now just to find a way of running the OC with ''HT'' enabled.....

My Computer
At a glance
SEVEN x64Q9450 @ 3.6GHZ 1.34v8GB 1066 buffalo firestix @ 1152mhz CL5Sapphire HD 5970 + GTX260 (physX)
- Computer Manufacturer/Model Number
- myself
- OS
- SEVEN x64
- CPU
- Q9450 @ 3.6GHZ 1.34v
- Motherboard
- ASUS P5K PREMIUM P35
- Memory
- 8GB 1066 buffalo firestix @ 1152mhz CL5
- Graphics Card(s)
- Sapphire HD 5970 + GTX260 (physX)
- Sound Card
- Creative X-FI Xtreme Gamer
- Monitor(s) Displays
- SAMSUNG 20'' & SAMSUNG 23'' (dual screens)
- Screen Resolution
- 2048x1152 & 1680x1050
- Hard Drives
- 1x seagate 160gb IDE & 1x seagate 160gb SATA
- PSU
- XCILIO 850w (78A)
- Case
- CM590 1x 120x38mm & 2x92x38mm / 4x 120x25mm
- Cooling
- AC7 PRO @ 92x38mm blower, Lamptron military bus bay controll
- Keyboard
- LOGITECH E110
- Mouse
- logitech NX5
- Internet Speed
- 2MB
- Other Info
- its a continual ''work in progress''....