I just installed two 295 video cards to do some CUDA processing, on Windows 7 64bit. When I run various tools to monitor the temperature they report four processors.
However, when I try and run some software for CUDA processing they only see 3 processors?!?
I am not using SLI mode, and I downloaded the latest drivers I could get ahold of (8.16.11.9103), but still nothing.
Looks like this is a much more serious issue than I would have thought. I found this thread, where at least on NVIDIA employee has been posting on the thread but still no solutions from what I can see.