Your card does not have the 1-2 bios switch?
Did the (6950 to 6970) 1408 shader flash fail?
You did not back-up your bios?
You can try this one -->
Club3D HD 6950 1024 MB BIOS
Looks like the device IDs and sub-system IDs are the same...
And, the Club3D one does either type of memory (Hynix or Samsung).
I can only recommend... you use at your own risk.
If your card is not working... you may want to give it a try... OR, send W1zzard a message to see if there may be a copy of the bios you need that did not make it to the DB.