RivaTuner e ADT7473

I'm reading this datasheet, here there aren't a beautiful function like DC%=...
So, i think a function that governate DC%(and the graph at page 41-42) is:

DC%=minDC%+170*(maxDC%-minDC%)*(T-Tmin)/Trange

where Trange is that wich in datasheet is called "effective Tange" at page 40.

Trange=(maxDCdecimal-minDCdecimal)*Tr/170

where Tr is Trange not effective.

Whit rivatuner i have this parameters:
minDC=45
maxDc=100
Tmin=45
Trange=26
------------- To set auto Tmin to off -------
Toperating=150
Tlow limit=0
Thight limit=150

The problem is if i draw graph(DC% / T) with this data i find a function that don't follow the real trend of DC% for T.

I have 45% until my temp is under 55°C instead 45% untile temp is under 45°C(like graph).

I have some question for Unwinder:
1)Trange in rivatuner i effective Trange or Tr?
2)DC in rivatuner are %percent or decimal?
3)Do you think this function is accurate or wrong?

 

Trange in RT is effective or not?

 

Im thinking my assumption is good, but my error is to use nvthermaldiode instead ADT7473.dll to monitoring core temperature...:bang:

Here
use this formula for Trange:
TR=2/3*(Tmax-Tmin)/(Dmax-Dmin)

Im using(according whit datasheet) this:

Tr=Trange*170/(maxDC-minDC)
where TRange is Tmax-Tmin and max/minDC is in decimal(0-255)

mmmm...

 

Ok, all is correct, the different in two formulas is that im using decimal(0-255) for DC and ribbel use (0-1) but both have the same result.
Good, now all work.

 

I have write this calc sheet, maybe can help someone.