MSI X299 GAMING PRO CARBON Présentation Rapide page 29

Multiple graphics cards installation recommendation
PCI_E1
For 44- & 28-lane CPU
Important
If you install a large and heavy graphics card, you need to use a tool such as MSI
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Gaming Series Graphics Card Bolster to support its weight and to prevent deformation
of the slot.
For a single PCIe x16 expansion card installation with optimum performance, using
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the PCI_E1 slot is recommended.
When adding or removing expansion cards, always turn off the power supply and
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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_E4
PCI_E1
PCI_E4
PCI_E6
Overview of Components
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