A few hours ago, i saw a request for help for choosing an appropriate fan & heatsink for a vga card . the fan info is as the folowing:

Actually the problem is that a friend of mine has this vga card, it has no problem with the fan or sink, but with it's missing driver for which i refered to nVidia website, but the downloaded driver did not work out. it has no info about the brand or the producer on i, but just this model: Nv gegorce FX5500