Pci_E1~3: Pcie Expansion Slots - MSI PRO B660M-P WIFI DDR4 User Manual

PCI_E1~3: PCIe Expansion Slots

BAT1
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Important
∙ If you install a large and heavy graphics card, you need to use a tool such as MSI
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.
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PCI_E1: PCIe 4.0 x16 (From CPU)
PCI_E2: PCIe 3.0 x1 (From B660 chipset)
PCI_E3: PCIe 3.0 x1 (From B660 chipset)
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