Try to see if the card says anything like FD57000 v3 or v.5000 or v.6000. also this might help. try opening up a console and typing in
lspci >> ~/hardwareinfo.txt
this will output information to a text file called hardwareinfo.txt in your home directory. Try running this as your self. Then copy the text into your next post so we can look it over. That may give us a better clue. As of now here are the following chipsets that your particular adapter might use.