After a few hours of playing with Air and watercooling it was time to move onto the real work : zubzero cooling. Last year we only did CPU cooling, but Gamer wanted to abuse his own Gigabyte ATI 5850 on liquid nitrogen too.
Team Captain of Madshrimps mista Luc aka Gamer explained the the wonders and dangers of liquid nitrogen. How to setup the board and prepare it for -100°C action and maybe even lower temps.
Pieter Jan brought his own setup and prepped for some ATI 6990 Crossfire action. At first we let the students to play with the demo setup and the CPU on LN2 only. Sadly the used Tones ES CPU was not happy to run over -100°C, so we were stuck with 5.7Ghz 3D action. It might have been better if we used one of our own retail CPUs as those easily do 6Ghz and more. After a while Luc started to prep his Gigabyte ATI 5850 car for LN2. Too bad his Vista install was very stubborn to accept any ATI driver. Also our extreme version of Afterburner didn't pick up the videocard correctly, this to allow for higher volts and clocks. So we had to settle for 1090Mhz on the core and 1200mhz on the GPU RAMS. Not bad, but the card already ran 1000/1300 on air. We were in fact aiming for 1250Mhz on the GPU core under extreme cold. The next day, Luc got it all together and crushed the 5850 ranking at Hwbot hard.
Pieter Jan reached a pretty easy 6400mhz on his 990X Gulftown CPU ( maybe he is really talented ? ) and set a nice new crossfire record in 3dmark03 with the ATI 6990s. Also leading the board in Vantage and 3Dmark05