Test with liquid nitrogen

Anyway, encouraged by the great performances on 3dmark 2005, we tried to see where this card could arrive under overclock.
After a quick preparation, we stressed the card in a brief session with liquid nitrogen.

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The card was completely at default and without mods, because there wasn't the time to study the alimentation section, so we only entrusted with the default voltages.

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Temperatures: -115°C on the vga, -135°C on the processor.
We verified that this card has a coldbug around -120°C, but only in 2d. While working, it holds frequencies superior of 1000 MHz for the core, but almost -140°C are needed to keep it stable.
But, at that temperature, while returning to 2d the screen gets lost, so the system must be rebooted.
Anyway, 980MHz for the core and 1050 MHz on memories are not bad, and we can hope in an improvement of performances when will become possible to raise the voltages on the GPU and on the memories.