Error Code "B2"

[Trevblahblah]

I bought a new, used r9 290x. When I install it my system will not boot or post and I get error code "B2"  (not 62, no horizontal line on the seven-seg display)

The card's fans spin at what I assume is 50 percent and then once the error code is reached they slow down to what I assume is 25-30 percent.

Specs:  

Mobo - Asrock 970 Extreme4

Cpu - FX-8320

backup GPU - gtx 960 - works fine, using it now

 

Things I've tried:

-Every PCI Express slot

-using only 1 stick/2 sticks of ram

-Update the BIOS 2.60->2.80 -  no change

-plug both cards in - device manager sees the card as "Microsoft Basic Display Adapter"  if I download the driver online through device manager, the progress gets to the end and then crashes.

 

 

What it do, yo?!

[Guest]

That means the Legacy ROM failed to initialize.

Re-seat you GPU, make sure it goes all the way in.

[TheRandomness]

Did you uninstall NVIDIA drivers before using the 290? If not, boot into safe mode and use DDU to get rid of them. The. Install the new drivers from their website.

[Trevblahblah]

Did you uninstall NVIDIA drivers before using the 290? If not, boot into safe mode and use DDU to get rid of them. The. Install the new drivers from their website.

I can't even get the card to post.  Once i get it to post I will deal with windows.

[Trevblahblah]

That means the Legacy ROM failed to initialize.

Re-seat you GPU, make sure it goes all the way in.

I have tried all PCI-E slots and made sure the card was fully seated in each

[Guest]

I have tried all PCI-E slots and made sure the card was fully seated in each

Try a different MoBo.