mellanox sfp+

My Freenas server is not detecting my new (from ebay) SFP+ card. It is the Mellanox ConnectX3 MCX341A-XCE, but I haven't been able to find an updated firmware for it anywhere. If I try the other firmware's for other variations of the card, I get this error -E- PSID mismatch. The PSID on flash...