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Overview of Components

BAT1

PCI_E1~6: PCIe Expansion Slots

PCI_E1: PCIe 3.0 x16 (CPU lanes)

PCI_E2: PCIe 3.0 x1 (PCH lanes)

PCI_E3: PCIe 3.0 x4 (PCH lanes)

PCI_E4: PCIe 3.0 x16 (CPU lanes)

PCI_E5: PCIe 3.0 x1 (PCH lanes)

PCI_E6: PCIe 3.0 x8 (CPU lanes)

PCIe slots bandwidth table

for 44-lane CPU

Graphics Card Single 2-Way* 2-Way 3-Way

PCI_E1 @ 3.0 x16 @ 3.0 x16 @ 3.0 x16 @ 3.0 x16

PCI_E2 3.0 x1 3.0 x1 3.0 x1 3.0 x1

PCI_E3 3.0 x4 3.0 x4 3.0 x4 3.0 x4

PCI_E4 3.0 x16 @ 3.0 x16 3.0 x16 @ 3.0 x16

PCI_E5 3.0 x1 3.0 x1 3.0 x1 3.0 x1

PCI_E6 3.0 x8 3.0 x8 @ 3.0 x8 @ 3.0 x8

(@: graphics card slot, *: best combination)

for 28-lane CPU

Graphics Card Single 2-Way 3-Way CF

PCI_E1 @ 3.0 x16 @ 3.0 x16 @ 3.0 x16

PCI_E2 3.0 x1 3.0 x1 3.0 x1

PCI_E3 3.0 x4 3.0 x4 3.0 x4

PCI_E4 3.0 x8 @ 3.0 x8 @ 3.0 x8

PCI_E5 3.0 x1 3.0 x1 3.0 x1

PCI_E6 3.0 x4 3.0 x4 @ 3.0 x4

(@: graphics card slot, CF: CrossFire only)

for 16-lane CPU

Graphics Card Single 2-Way 3-Way CF

PCI_E1 @ 3.0 x8 @ 3.0 x8 @ 3.0 x8

PCI_E2 3.0 x1 3.0 x1 3.0 x1

PCI_E3 3.0 x4 3.0 x4 3.0 x4

PCI_E4 3.0 x8 3.0 x4 @ 3.0 x8 @ 3.0 x4

PCI_E5 3.0 x1 3.0 x1 3.0 x1

PCI_E6 empty 3.0 x4  @ 3.0 x4

(@: graphics card slot, : unavailable, CF: CrossFire only)

MSI X299 TOMAHAWK Quick Start

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