MSI Z370-A PRO User Manual - Page 28

PCI_E1~6: PCIe Expansion Slots, Multiple graphics cards installation recommendation

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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 x1 (PCH anes) PCI_E4: PCIe 3.0 x4 (PCH lanes) PCI_E5: PCIe 3.0 x1 (PCH lanes) PCI_E6: PCIe 3.0 x1 (PCH lanes) Multiple graphics cards installation recommendation x16 x16 x4 Important y For a single PCIe x16 expansion card installation with optimum performance, using the PCI_E1 slot is recommended. y 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. y 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 and to prevent deformation of the slot. 28 Overview of Components

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28
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 x1 (PCH anes)
PCI_E4
: PCIe 3.0 x4 (PCH lanes)
PCI_E5
: PCIe 3.0 x1 (PCH lanes)
PCI_E6
: PCIe 3.0 x1 (PCH lanes)
Multiple graphics cards installation recommendation
x16
x16
x4
Important
y
For a single PCIe x16 expansion card installation with optimum performance, using
the
PCI_E1
slot is recommended.
y
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.
y
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 and to prevent
deformation of the slot.