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Rectangular ATX motherboard, black PCB with silver heatsinks and grey expansion slots

MSI

MSI B450 TOMAHAWK AMD motherboard Socket AM4 DDR4 64GB ATX

SKU CH-2X7F-KF7CK

ATX board for first and second generation Ryzen CPUs, dual-channel DDR4 up to 64GB, one PCIe 3.0 x16 slot, six SATA III ports, Realtek ALC892 7.1 audio and gigabit LAN

  • CPU Socket TypeSocket AM4
  • CPU TypeFirst and second generation AMD Ryzen processors with AM4 pi
  • ChipsetAMD B450
  • Memory StandardSupport dual-channel DDR4 1866/2133/2400/2667/2800/2933/3000
  • Maximum Memory Supported64GB
  • PCI Slots1 PCIe 3.0 x16 slot (PCI_E1) First and second generation AMD
  • Supports 64GB DDR4 memory at speeds up to 3466MHz
  • Socket AM4 fits first and second generation Ryzen processors
  • AMD B450 chipset with 10Gbps USB 3.1 Gen2 Type-C and Type-A ports
  • Realtek ALC892 delivers 7.1-channel high-quality audio
  • Realtek 8111H Gigabit LAN plus multiple PCIe 3.0 and 2.0 expansion slots

Board purpose

The MSI B450 TOMAHAWK is an ATX motherboard built on the AMD B450 chipset for Socket AM4 processors. It targets builders assembling systems around first or second generation Ryzen CPUs, including models with integrated Vega graphics.

Suitability guide

This board suits users who need dual-channel DDR4 memory support up to 64 GB across a wide range of speeds from 1866 MHz to 3466 MHz. It also provides one PCIe 3.0 x16 slot, one PCIe 2.0 x16 slot running at x4 mode, three PCIe 2.0 x1 slots, six SATA III ports and one M.2 interface. Builders requiring more than a single full-length PCIe 3.0 slot or newer CPU generations should look at other chipsets.

Deciding specification

The single specification that determines fit is the CPU socket: this motherboard only accepts Socket AM4 processors. If your CPU uses a different socket, the board will not work.

Highlights

  • Supports 64GB DDR4 memory at speeds up to 3466MHz
  • Socket AM4 fits first and second generation Ryzen processors
  • AMD B450 chipset with 10Gbps USB 3.1 Gen2 Type-C and Type-A ports
  • Realtek ALC892 delivers 7.1-channel high-quality audio
  • Realtek 8111H Gigabit LAN plus multiple PCIe 3.0 and 2.0 expansion slots

Specifications

BrandMSI
SeriesMSI B450 TOMAHAWK
ModelMSI B450 TOMAHAWK
CPU Socket TypeSocket AM4
CPU TypeFirst and second generation AMD Ryzen processors with AM4 pins and RadeonVega graphics
ChipsetAMD B450
Memory StandardSupport dual-channel DDR4 1866/2133/2400/2667/2800/2933/3000/3066/3200/3466MHz memory
Maximum Memory Supported64GB
PCI Slots1 PCIe 3.0 x16 slot (PCI_E1)
First and second generation AMD Ryzen processors support x16 speed
Ryzen processors with RadeonVega graphics support x8 speeds
1 PCIe 2.0 x16 slot (PCI_E4, supports x4 mode)
3 PCIe 2.0 x1 slots
SATA RAID1XM.2 interface, 6xSATA III interface
Audio ChipsetRealtek ALC892 decoding chip
7.1-Channel high-quality sound effects
LAN Chipset1 Realtek 8111H Gigabit network interface card
Onboard USBAMD B450 chipset
1 USB 3.1 Gen2 (SuperSpeed USB 10Gbps) Type-C interface located on the backplane
1 USB 3.1 Gen2 (SuperSpeed USB 10Gbps) Type-A interface located on the backplane
2 USB 3.1 Gen1 (SuperSpeed USB) interfaces are provided via the onboard USB 3.1 Gen1 interface
6 USB 2.0 (High-speed USB) interfaces (2 Type-A interfaces located on the backplane, 4 interfaces provided through the onboard USB 2.0 interface)
AMD processor
2 USB 3.1 Gen1 (SuperSpeed USB) Type-A ports located on the backplane

Questions about this item

How can I confirm the board is running correctly after assembly?

Power on the system and check that the POST screen appears, the CPU and DRAM debug LEDs stay off, and the BIOS detects the installed DDR4 memory at its rated speed up to 3466 MHz.

What accessories are included and what must I source separately?

The package contains the motherboard, a CMOS battery, one SATA cable and the rear I/O shield; you will need to buy a Socket AM4 CPU, DDR4 modules, storage drives, a power supply and a case.

Which memory capacity should I choose for this board?

The board supports a maximum of 64 GB across four slots, so pick a kit that totals 64 GB or less — for example four 16 GB modules or two 32 GB modules.

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