Dimm Slots; Pci_E1~3: Pcie Expansion Slots - MSI B450M PRO-M2 User Manual

DIMM Slots

Please install the memory module into the DIMM slot as shown below.
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Important
Due to chipset resource usage, the available capacity of memory will be a little less
y
than the amount of installed.
Based on processor specification, the Memory DIMM voltage below 1.35V is
y
suggested to protect the processor.
Due to AM4 CPU/memory controller official specification limitation, the frequency
y
of memory modules may operate lower than the marked value under the default
state. Please refer www.msi.com for more information on compatible memory.

PCI_E1~3: PCIe Expansion Slots

* For Ryzen™ 1st and 2nd Generation processors
** For Ryzen™ with Radeon Vega Graphics processors
Important
When adding or removing expansion cards, always turn off the power supply and
y
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.
If you install a large and heavy graphics card, you need to use a tool such as MSI
y
Gaming Series Graphics Card Bolster to support its weight to prevent deformation of
the slot.
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Overview of Components
BAT1
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1
3
PCI_E1: PCIe 3.0 x16*/ PCIe 3.0 x8**
PCI_E2: PCIe 2.0 x1
PCI_E3: PCIe 2.0 x1
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3