[V2-V3]

After Testing our P5B, P4 631 (ES), and Micron D9GKX overclocks on Stock cooling we decided to move to our next phase of air cooling with a Zalman 9500 Cu and get some higher overclocks. The Zalman was an incredible jump in cooling performance compared to stock but not near enough to handle the voltage of a 5GHZ overclock. We than moved to our watercooling setup, a koolance RP1000, CPU 305 Block, and Black Ice Extreme II. The block had a far greater cooling capacity than we expected. The liquid cooling solution was very valuable to us in our water testing phase and allowed us to determine that with any cooling solution we were experiencing a 40-50C temperature differential between the IHS and Die temp when above 1.45v Vcore. We were able to determine that the removal of the IHS was needed for the Engineering Sample at hand. We ran LN2 on the 631before and after the IHS removal. Testing 1.0v - 1.7v we have determined that the removal of the IHS greatly reduced the Delta T we were experiencing.

We were able to achieve 7GHZ at 1.6Vcore while testing our 1st 631ES on LN2, before we could test any higher clocks we had a condensation issue that eventually killed the CPU and Mobo halting any testing until we could find replacement hardware.
We spent the next week developing a solution to combat condensation and freeze lock. we came to a conclusion that required several key modifications to our project designs.
1. The redesign of our LN2 pot.
2. Use of a sealant to protect all vital areas of the board.
3. Increase of distance between the mounting bracket and the motherboard.
4. The use of precision cut insulation pads around the base of the LN2 pot, socket, and the back of the motherboard.
5. The use of a Koolance motherboard Hydrapack to regulate temperatures on the back of the board and prevent motherboard "Freeze lock"
6. Cooling of the Vregs on the top and bottom of the motherboard to reduce Vdroop.