Pci_E1~5: Pcie Expansion Slots; Pcie Bandwidth Table - MSI MEG X570 UNIFY Présentation Rapide

PCI_E1~5: PCIe Expansion Slots

Slots 3rd Gen AMD Ryzen™
PCI_E1 PCIe 4.0 x16
PCI_E2 PCIe 4.0 x1
PCI_E3 PCIe 4.0 x8
PCI_E4 PCIe 4.0 x1
PCI_E5 PCIe 4.0 x4
⚠
Important
If you install a large and heavy graphics card, you need to use a tool such as MSI
∙
Gaming Series Graphics Card Bolster to support its weight to prevent deformation of
the slot.
∙ For a single PCIe x16 expansion card installation with optimum performance, using
the PCI_E1 slot is recommended.
When adding or removing expansion cards, always turn off the power supply and
∙
unplug the power supply power cable from the power outlet. Read the expansion
card's documentation to check for any necessary additional hardware or software
changes.
The PCIe x1 slots can not be used simultaneously. PCI_E2 will be unavailable when
∙
installing the PCIe card in PCI_E4 slot.

PCIe bandwidth table

Please refer the table below to install the PCIe devices.
For 3rd Gen AMD Ryzen™
Slot
PCI_E1 (CPU)
PCI_E2 (PCH) 4.0 x1
PCI_E3 (CPU)
PCI_E4 (PCH)
PCI_E5 (PCH)
(─: unavailable, @: graphics card, *: CrossFire only)
2nd Gen AMD Ryzen™
PCIe 3.0 x16
PCIe 3.0 x1
PCIe 3.0 x8
PCIe 3.0 x1
PCIe 3.0 x4
Single
@4.0 x16
—
—
— 4.0 x1
4.0 x4
2-Way
@4.0 x8
4.0 x1 —
@4.0 x8
— 4.0 x1
4.0 x4
Ryzen™ with Radeon™
Vega Graphics and 2nd
Gen AMD Ryzen™ with
Radeon™ Graphics
PCIe 3.0 x8
PCIe 3.0 x1
Unavailable
PCIe 3.0 x1
PCIe 3.0 x4
3-Way*
@4.0 x8
4.0 x1 —
@4.0 x8
— 4.0 x1
@4.0 x4
Overview of Components
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