msi slotSlot: 1x PCI-E x16 slot 1x PCI-E x1 slot PCI_E1 Gen PCIe 4.0 supports up to (From CPU) PCI_E2 Gen PCIe 3.0 supports up to (From Chipset) Audio: Realtek ® ALC897 Codec: 7.1-ChannelI have installed the Samsung SM951 M.2 drive in my MSI SLI Plus motherboard as a boot drive. But in the MSI Guard Pro BIOS, there are a couple settings that are confusing