samsung 1733

Hello we have a super micro server with pcie gen4 epyc 7502 and 16x64gb ddr4 ecc. there are 6x Samsung 1733 inside. This runs under windows server 2019. as soon as the hyper v roll are installed, the pcie 4 ssds are gone! pcie 3, however, does not. are there maybe other drivers? is the problem...