PCIe Bifurcation

My small Kingston A2000 drive works and boots in either nvme slot The P3 works only in the first slot I've checked

First we need to identify at which PCIe slot the device is attached $ lspci grep -i nvme 08: Non-Volatile memory controller: Samsung

pcie 4 slot Utilize an available PCIe x4 expansion slot for the installation, removal, or interchange of PCIe SSDs The drive tray accommodates M-Key NVMe SSDs

pcie x32 slot Solution ; PCIeNVMe SSD, Third-party adapter card, No ; PCIe form-factor SSD, PCIe slot on the NAS, No ; SATA ” SSD, NAS drive