Extreme Overclocking

Graphics Card Preparation

We used Artic Silver Ceramique on the graphic components, to make for better conductive mating between the block and the components. While we could have used Artic Silver 5, using a compound comprised of 99.9% silver is not wise, as a leak could be fatal. Even though the coolant is non-conductive, once you introduce electrically conductive particles you can make the fluid conductive. The small transistors exposed next to graphics processors need to be protected from leaks, so using a non-conductive paste ensures that we don't short out the system if a leak does occur.

With both water blocks in place, the PCBs needed to be sealed together using a rubber gasket between the blocks. This gasket ensures a water-tight seal between the two blocks where the coolant from the bottom PBC flows into the top block. When fully assembled, the water-ready Sparkle GeForce 7950GX2 was 1.4 lbs heavier, at a total of 2.7 lbs (1.2 kg).