hi gyverlb,
I have to check that. But according to my experience with the card you can do pretty much everything, so there are no factory locks whatsoever. It's going to be the second half of the week until I can answer your question.
cheers
OK will wait, some additional info/questions.
Fan control is obvious to check.
For voltage control there are 2 ways I can think of: check the power consumption at 0.951V and 0.95V, if there's a noticeable jump, the card doesn't fake its ability to run at 0.95V (drivers will happily take voltage values they can't handle). Another way is to read what cgminer advertises as the valid range when you try to change the voltage. If 0.95V is the range's bottom value it should be supported (at least it then works properly on all cards I tried).
It seems the fan on this model is the same than all other 5970/5870 reference fans (with the difference that its cable is longer to reach the connector). Can you confirm this?
If the voltage and fan control is OK and the fan can be replaced by a reference fan, I'll offer 190 in BTC shipped to France (currently this is around 21BTC based on 24h MtGox average). This is just a bit more than I just paid for a reference 5970 shipped. The model is worth more than a reference model, but I'll have to replace the fan (which means making a reference fan power cable longer, replacing the thermal grease and depending on their condition the thermal pads too).