Y40 build, no GPU output..

Erm... Help? Treated myself to a new case for my system but I'm getting no output from my GPU, the fans on the GPU don't spin up but the RGB on it lights up..

My specs are as follows

Ryzen 5 5600X Gigabyte Aorus B550M Elite motherboard Gigabyte Radeon RX 7700 XT Gaming oc 32GB Corsair Vengeance DDR4 3600 Asus TUF 750W PSU

If I put everything back in the old case to check it was ok it worked fine.. is there a setting I need to change in bios to allow for the riser?