MSI MEG X570 UNIFY User Manual - Page 33

PCI_E1~5: PCIe Expansion Slots, PCIe bandwidth table

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PCI_E1~5: PCIe Expansion Slots Slots PCI_E1 PCI_E2 PCI_E3 PCI_E4 PCI_E5 3rd Gen AMD Ryzen™ PCIe 4.0 x16 PCIe 4.0 x1 PCIe 4.0 x8 PCIe 4.0 x1 PCIe 4.0 x4 2nd Gen AMD Ryzen™ PCIe 3.0 x16 PCIe 3.0 x1 PCIe 3.0 x8 PCIe 3.0 x1 PCIe 3.0 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 Important yyIf 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. yyFor a single PCIe x16 expansion card installation with optimum performance, using the PCI_E1 slot is recommended. yyWhen 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. yyThe 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 Single 2-Way PCI_E1 (CPU) @4.0 x16 @4.0 x8 PCI_E2 (PCH) 4.0 x1 - PCI_E3 (CPU) - 4.0 x1 - @4.0 x8 PCI_E4 (PCH) PCI_E5 (PCH) - 4.0 x1 4.0 x4 - 4.0 x1 4.0 x4 (─: unavailable, @: graphics card, *: CrossFire only) 3-Way* @4.0 x8 4.0 x1 - @4.0 x8 - 4.0 x1 @4.0 x4 Overview of Components 33

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33
Overview of Components
PCI_E1~5: PCIe Expansion Slots
Important
y
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.
y
For a single PCIe x16 expansion card installation with optimum performance, using
the
PCI_E1
slot is recommended.
y
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.
y
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
Single
2-Way
3-Way*
PCI_E1 (CPU)
@4.0 x16
@4.0 x8
@4.0 x8
PCI_E2 (PCH)
4.0 x1
—
4.0 x1
—
4.0 x1
—
PCI_E3 (CPU)
—
@4.0 x8
@4.0 x8
PCI_E4 (PCH)
—
4.0 x1
—
4.0 x1
—
4.0 x1
PCI_E5 (PCH)
4.0 x4
4.0 x4
@4.0 x4
(─: unavailable, @: graphics card, *: CrossFire only)
Slots
3rd Gen AMD Ryzen™
2nd Gen AMD Ryzen™
Ryzen™ with Radeon™
Vega Graphics and 2nd
Gen AMD Ryzen™ with
Radeon™ Graphics
PCI_E1
PCIe 4.0 x16
PCIe 3.0 x16
PCIe 3.0 x8
PCI_E2
PCIe 4.0 x1
PCIe 3.0 x1
PCIe 3.0 x1
PCI_E3
PCIe 4.0 x8
PCIe 3.0 x8
Unavailable
PCI_E4
PCIe 4.0 x1
PCIe 3.0 x1
PCIe 3.0 x1
PCI_E5
PCIe 4.0 x4
PCIe 3.0 x4
PCIe 3.0 x4