Been bitten by the same problems
Bought 6 OCZ Vector units for two Hyperdecks
Drives installed in HP workstation for testing – BMD speed test suggest 250 MByte / second write.
Sometimes work perfectly in the Hyperdeck ( only ever in slot 2, never in Slot 1 ) recording 1080I25 full res, sometimes, more often, they don’t even register.
A reformat ( Quick ) into exFat ( via Win 7 ) usually cures this but I cannot hand over equipment to my customer like this, and now wasted too much time.
Flashed Firmware in drives to OCX Ver 2 – no difference ( Mar 13 ).
So OCZ Vector Drives do not seem to work in Hyperdecks ( SW V 3.7 )