P4 2.80GHz Overclocked to 3.917GHz

vwbus writes "The guys at Muropaketti have taken a brand new Pentium 4 2.80GHz chip, bought a pint or so of liquid nitrogen and overclocked it to an astounding 3.917GHz. The Finns describe how they put together the system on their web page, and luckily there are a whole set of pictures which demonstrate exactly what they've done, so you don't need to understand Finnish to figure it out. The pictures show wisps of nitrogen evaporating from the jar sitting on top of the CPU, and they publish some SiSoft figures to demonstrate the kind of speeds they attained." The folks at Muropaketti have had a lot of practice with this cooling method.

Comments

Re:Hmmm, 145MHz FSB, 21x Multilier = 4Ghz - eh?

[Sampsa]

Hello,

We have modified TurboPLL-module on Asus P4T533-C motherboard which allows us to use higher front side bus.

Thanks to this module, when we set 145MHz from BIOS, the FSB is actually 186MHz.

You can check out the pictures of modified motherboard here.

Re:Thermal Stresses

[Sampsa]

CPU still works fine and actually we are already planning for the next test with liquid nitrogen

Earlier we tested Pentium 4 2,4GHz CPU with liquid nitrogen over 20 times and it's still kicking

We dry the components very carefully after the test with compressor.