GTX 560 ti - Error 52

[arminask]

Hello, I have a GTX 560 ti, and I've been trying to get it working on Windows 10 proxmox VM, after patching the nvidia drivers, installing them and rebooting the VM I get Error 52. I tried booting in to "disable driver signature enforcement" mode, but then I just get a blue screen.
When I try patching the drivers I also get this error:
https://i.imgur.com/0yScofx.png
I am using SeaBIOS since the GPU doesn't support UEFI.
Has anybody successfully installed drivers for this card? Or at least any other nvidia 500 series card? If so, could you please share your configs/etc? Thanks!

EDIT: I managed to patch the drivers successfully on another computer, when I install those patched drivers on a VM, after a reboot the VM just constantly blue screens.