The special add feature (which allows the voltage to be set at what I want at load and still idle down when idle) and the 8 phase sever grade pwm (rated at 30amps a phase and 135°c) are two of the main reasons along with the slot layout on why I got the DFI. Since the terminology in the bios is names different I will do my best to fill in what you are asking.
CPU Ratio: 20x with turbo = 21x
BCLK: 193
PCIE Freq: 100
DRAM Freq: 8x
UCLK Freq: 16x
QPI Link: Auto (18x)
CPU Voltage: 1.35 aprox
PPL: 1.85
QPI/Dram: 1.28
IOH Voltage: 1.11 (not sure best guess)
IOH PCIE:
ICH Voltage: 1.05 (not sure best guess)
ICH PCIE: 1.5 (not sure best guess)
Dram Voltage:1.65
If you are shooting for 4ghz+ turning off HT will help a lot and if you aren't using any well threaded programs it is the way to go. With HT off and the settings I just posted I could raise my bclock to about 198 and still be stable but with mem timings loosened a notch.