configure connectx-3 to fdr


I have a Mellanox connect-3 card in plugged into a PCI-E 3 slot in my Supermicro motherboard with fibre plugged into it. It is only operating at 4xSDR, how do I force it to use FDR and preferably 56gig? It is a Windows 10 platform which I have to use because the software I am using is only Win10 compatible.,