MSI X299M-A PRO User Manual - Page 30

PCI_E1~3: PCIe Expansion Slots, PCIe slots bandwidth table

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PCI_E1~3: PCIe Expansion Slots PCI_E1: PCIe 3.0 x16/ x8 PCI_E2: PCIe 3.0 x8/ x4 BAT1 PCI_E3: PCIe 3.0 x4 PCIe slots bandwidth table Graphics Card PCI_E1 Single* @ 3.0 x16 PCI_E2 3.0 x0 PCI_E3 3.0 x0 (@: graphics card slot, *: best combination) 2-Way* @ 3.0 x8 @ 3.0 x8 3.0 x0 Multiple graphics cards installation recommendation 2-Way @ 3.0 x8 3.0 x4 @ 3.0 x4 PCI_E1 PCI_E1 PCI_E2 Important y For a single PCIe x16 expansion card installation with optimum performance, using the PCI_E1 slot is recommended. 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 and to prevent deformation of the slot. 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. 30 Overview of Components

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30
Overview of Components
PCI_E1~3: PCIe Expansion Slots
PCI_E1
: PCIe 3.0 x16/ x8
PCI_E2
: PCIe 3.0 x8/ x4
PCI_E3
: PCIe 3.0 x4
PCIe slots bandwidth table
Graphics Card
Single*
2-Way*
2-Way
PCI_E1
@ 3.0 x16
@ 3.0 x8
@ 3.0 x8
PCI_E2
3.0 x0
@ 3.0 x8
3.0 x4
PCI_E3
3.0 x0
3.0 x0
@ 3.0 x4
(@: graphics card slot, *: best combination)
Multiple graphics cards installation recommendation
Important
y
For a single PCIe x16 expansion card installation with optimum performance, using
the
PCI_E1
slot is recommended.
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 and to prevent deformation
of the slot.
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.
PCI_E1
PCI_E1
PCI_E2