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PCI_E1~3: PCIe Expansion Slots

PCI_E1: PCIe 5.0 x16 (From CPU)

PCI_E2: PCIe 3.0 x1 (From B660 chipset)

PCI_E3: PCIe 3.0 x4 (From B660 chipset)

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Important

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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.

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For a single PCIe x16 expansion card installation with optimum performance, using

the PCI_E1 slot is recommended.

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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.

Questions and Answers:

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MSI MAG B660M MORTAR MAX WIFI DDR4 Specifications

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