Gigabyte Z97X-SOC b2 error code

[LegendaryPOO]

Hey peoples
New build issue.

Just bought the above board and 4690k CPU to go with my existing 2x4gb memory and Sapphire 7950 OC 3gb.
Put it all together without vidcard, all loaded into bios, did update to F6. All looking good. Put the video card in, and no boot. Comes up with b2 error (I assumed it was 62 for a bit, but the 6 does look different). Legacy Option Rom Initialization is what b2 debug code is about.

Take the video card out, all booting up again.
Put video card into another PC, boots up fine with that card.
Put an old 460gtx and 610gt into the new board, boots up fine.

Googling the issue seems to lead me to believe there is an issue with reading the ROM off the video card, so I flashed a new BIOS. Boots in other PC, b2 error in new board.


Anyone can please work out what to do here? If its a RMA issue, how can I explain it booting with everything but a 7950?

Cheers