Testing Kinfu (or not)
First problem was that this card hardly fit inside my computer. Later I found out my power supply just lacked the proper connectors to power that graphics card. I asked for help and I have got a 1000W PC power supply. This one has all the connectors needed but I am not fitting it inside my computer box.
Once I was convinced of the right way of connecting the 8 pin PCI-express additional power socket, which was all but obvious to me, I fired up the system and it came up nicely. But, once again, I was defeated by the hardware: It turns out this board is not a good match for running Kinfu either. Though it has 250 cores, it lacks the computing skills needed for the job.
It was then when I realized I should have read first: This message talks about hardware requirements and this other page mentions the capabilities of different Nvidia card. Hopefully tomorrow a friend will lend me his GTX 470 that is 2.0 compliant and it should be good to go.