**Official DFI LanParty UT 790FX-M2R Review/Overclock/Guide Thread**

[justapost]

So it is possible to define at least two p-states with individual CPU VID/DID, CPU FID and NB DID.
There are two other variables in the p-state registers IddValue and IddDiv. Those are used during system start in the prozessor-systemboard power delivery compatibility check (see. BKDG 2.4.2.7) to calculate the amps the processor needs in the p-state. The guide also mentions that for each p-state an acpi prozessor p-state object should be created. I assume those will use the amp value to decide when to switch to another p-state. If thats correct it could be used to detect the currently used amps by tweaking p-state 1 till the system switches to state 1 under load.
The first bit in each p-states register defines if the state is valid, so it might be possible to define more than two states.