BIOS thinks there's a problem with the GPU

[joey1211]

Running a Sapphire Radeon 5770 in a Gigabyte GA-MA770T-UD3 MA770. On boot the BIOS gives the eror code for 'Graphics card not inserted properly'

But the display works and can see no problem. The beeps stop after about 5 minutes.

Any ideas?

 

[joey1211]

The mobo is fresh out of the box. I'll give it a go tonight