Better hashing rate from Nvidia Cards?

I apologize for bringing this up again because I am sure it has been discussed already. I am trying to get better hashrate out of my nvidia cards. I had someone give me 6 Nvidia Tesla M2075s. I have been able to get them to hash but only at about 6 or 7M/hs. I have tried some of the overclocking things but usually MSI doesn't even recognize the card.

Is there anyway to actually get the M Series from Nvidia to hash faster?

Thanks