Pci_E1~5: Pcie Expansion Slots - MSI X299-A PRO Présentation Rapide

PCI_E1~5: PCIe Expansion Slots

Please refer to the table below for the PCIe lanes of the CPU.
CPU
PCI_E1
PCI_E2
PCI_E3
PCI_E4
PCI_E5
Multiple graphics cards installation recommendation
PCI_E1
18
Overview of Components
48-lane CPU 44-lane CPU
PCIe x16 PCIe x16
PCIe x4 PCIe x4
PCIe x16 PCIe x16
PCIe x1 PCIe x1
PCIe x8 PCIe x8
PCI_E1
PCI_E3
PCI_E5
28-lane CPU
PCIe x16 PCIe x8
PCIe x4 PCIe x4
PCIe x8 PCIe x8
PCIe x1 PCIe x1
PCIe x4 Unavailable
PCI_E1
PCI_E3
Note: 28-lane & 16-lane CPU
don't support 3-WAY SLI.
16-lane CPU
PCIe x8
PCIe x4
PCIe x4
PCIe x1
PCIe x4