MSI MAG B550 TOMAHAWK MAX WIFI [31/57] Pci_e1 4 pcie expansion slots

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Overview of Components

PCI_E1~4: PCIe Expansion Slots

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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

Gaming Series 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.

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When installing devices in M.2_2, PCI_E2 & PCI_E3 slots at the same time, PCI_E3

slot will be unavailable, and M2_2 slot only supports PCIe x2.

M.2 slots and PCIe slots combination table

Slot Combination

M2_1 (CPU) PCIe/SATA

M2_2 (PCH) PCIe x2 PCIe x4 X X

PCI_E1 (CPU) ✓ ✓ ✓ ✓

PCI_E2 (PCH) ✓ X ✓ X

PCI_E3 (PCH) ─ X PCIe x2 PCIe x4

PCI_E4 (PCH) ✓ ✓ ✓ ✓

(SATA: M.2 SATA SSD, PCIe: M.2 PCIe SSD, X: no device, ✓: available, ─: unavailable)

PCI_E1: PCIe 3.0/ 4.0 x16 (CPU)

PCI_E3: PCIe 3.0 x4 (PCH)

PCI_E2: PCIe 3.0 x1 (PCH)

PCI_E4: PCIe 3.0 x1 (PCH)