Here is my i920, 24/7 Result:

Batch#: 3837A766
CPU: 200x21(Turbo) = 4200Mhz @ 1.425v, HT=ON.
CPU Diffrential Amplitude: 700mv, CPU/IOH Clock Skew: delay 100ps.
TM Function=Enabled, QPI voltage=Auto, Load Line Calibration=AUTO.

Memory: DDR 1600Mhz 7-7-7-18 1T @ 1.64v