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Rectangular ATX motherboard in matte black with silver heatsinks and AM4 socket visible

MSI

MSI B450M-A PRO MAX AMD motherboard ATX AM4 B450 64GB DDR4

SKU CH-140H-VT8VM MPN B450M-A

ATX board with B450 chipset supports Ryzen 1st and 2nd Gen CPUs up to 64 GB DDR4

  • CPU Socket TypeAM4
  • CPU TypeRyzen Series
  • ChipsetAMD B450
  • Number of Memory SlotsDDR4
  • Maximum Memory Supported64GB
  • PCI Express 3.0 x161x PCI Express 3.0 x16
  • Supports up to 64GB DDR4 memory for heavy multitasking
  • Works with Ryzen 1st and 2nd Gen CPUs without BIOS update
  • ATX form factor fits standard desktop cases
  • One PCI Express 3.0 x16 slot for graphics cards
  • Includes USB 3.1 Gen 2 Type-A for fast data transfer

Product Identity

The MSI B450M-A PRO MAX is an ATX motherboard built around the AMD B450 chipset for socket AM4 processors. It provides four DDR4 slots with a maximum capacity of 64GB and a single PCI Express 3.0 x16 slot for graphics cards. The board is supplied new without an I/O shield or other accessories.

Who It Suits

This board suits builders using supported Ryzen 1st and 2nd Generation CPUs such as the Ryzen 5 1600 or Ryzen 7 2700X that work without a BIOS update. Buyers who need a motherboard ready for 3rd or 5th Generation Ryzen processors out of the box should look elsewhere, as a BIOS update using a compatible older CPU is required.

Deciding Specification

The critical detail is the CPU compatibility list: 1st and 2nd Generation Ryzen processors operate immediately while 3rd and 5th Generation models need a BIOS flash performed with an already-supported chip.

Points forts

  • Supports up to 64GB DDR4 memory for heavy multitasking
  • Works with Ryzen 1st and 2nd Gen CPUs without BIOS update
  • ATX form factor fits standard desktop cases
  • One PCI Express 3.0 x16 slot for graphics cards
  • Includes USB 3.1 Gen 2 Type-A for fast data transfer

Caractéristiques

BrandMSI
ModelB450M-A PRO MAX
CPU Socket TypeAM4
CPU TypeRyzen Series
ChipsetAMD B450
Number of Memory SlotsDDR4
Maximum Memory Supported64GB
PCI Express 3.0 x161x PCI Express 3.0 x16
PCI Express x161
PCI Slots1 x PCI Slot
Back I/O Ports1 x LAN (RJ45) / 1 x USB 3.1 Gen 2 Type-A
RJ451 x RJ45
USB 3.11 x USB 3.1
Form FactorATX

Questions sur cet article

Will the AM4 socket or DDR4 slots need replacement after heavy use?

The AM4 socket and DDR4 slots are soldered to the board; they are not user-replaceable parts. If a pin bends or a slot fails, the motherboard itself must be swapped.

What limit appears first when the VRM runs a high-wattage Ryzen 7 2700X all day?

The 4+2 phase VRM without heatsinks will hit thermal throttling before the 64 GB memory ceiling or the single PCIe 3.0 x16 slot saturates.

How loud and hot does the board get with a Ryzen 5 2600 under 24/7 load?

No active cooling is on the VRM or chipset, so case airflow dictates temperature; the board adds no fan noise of its own.

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