I could get my new QX9770 C1 3DMark stable @ 440 - 445 MHz FSB (Memory 7-6-6-18 1T @ 1760 - 1780 MHz DDR) which is not very good result at all.

When I switched to cascade cooling the results were even more disappointing. If I adjusted anything above 1.7V from BIOS and Load Line calibration was enabled the system just shut down immediately when I tried 3DMark06 CPU-test.

Without Load Line Calibration I could adjust for example 1,85V from BIOS but LCD-display showed 1,75V in idle and voltage dropped to ~1,65 under load... not very good either.

I was able to run 3DMark06 only @ 4925 MHz with 1,7V (Load Line Calibration enabled) and LCD display/CPU-Z showed 1,688V.

I guess BIOS (0401) needs couple of bugs fixed for higher Vcore. I'll try tomorrow with P5E64 WS Evolution and see if my QX9770 C1 does any better.