Second slot M.2 Nvm disables First Slot M.2 Nvme

nvm slotNVM Express (NVMe) or Non-Volatile Memory Host Controller Interface Specification (NVMHCIS) is an open, logical-device interface specification for accessing a computer's non-volatileWhen you buy a new SSD, it uses either the SATA or NVMe interface to connect to your computer. Traditional SATA SSDs use the 2.5 form factor, as seen in the picture below.