TESLA drivers installation

Good morning, I am considering the idea of upgrading the server where I work with a NVIDIA Tesla k80, but I have some doubts about the installation order. Should I install first the GPU physically and then the NVIDIA Tesla drivers or should I do the converse?
I know that this is a silly question but at the moment we do not have an expert in the filed. If you need any other detail, I will be happy to provide it
Thank you for your kind assistance.
Best regards.