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ATX motherboard in black with grey heatsinks and silver PCIe slots

MSI

MSI MAG B460 TOMAHAWK Intel motherboard

SKU CH-TNJK-NYB02

Supports 10th Gen Intel Core and Pentium Gold or Celeron processors in an LGA 1200 socket with dual-channel DDR4 2933MHz memory up to 128GB, Intel B460 chipset, 7.1-channel audio.

  • CPU Socket TypeLGA 1200
  • CPU TypeSupports 10th Gen Intel Core and Pentium Gold / Celeron proc
  • ChipsetIntel B460
  • Memory StandardSupports dual-channel DDR4 2933MHz memory (maximum)
  • Maximum Memory Supported128GB
  • PCI Slots1x PCIe 3.0 x16 slot (From CPU, PCI_E1), supports x16 mode 1
  • Supports 10th Gen Intel Core and Pentium Gold processors on LGA 1200 socket
  • Dual-channel DDR4 memory up to 2933MHz with 128GB maximum capacity
  • Primary PCIe 3.0 x16 slot from CPU runs at x16 mode for graphics
  • 5Gbps Realtek LAN plus 1Gbps Intel LAN for wired networking
  • 1-channel Realtek ALC1200 audio with S/PDIF output

LGA 1200 ATX Motherboard

The MSI MAG B460 TOMAHAWK uses the Intel B460 chipset and an LGA 1200 socket to support 10th generation Intel Core, Pentium Gold and Celeron processors. Four DDR4 slots accept up to 128 GB of dual-channel memory at 2933 MHz. The ATX form factor provides one full-length PCIe 3.0 x16 slot from the CPU, a second x16 slot from the PCH running at x4, two PCIe 3.0 x1 slots, six SATA III ports and two M.2 interfaces.

Installation Notes

The board fits standard ATX mounting holes and uses a conventional 24-pin plus 8-pin CPU power layout. A pre-installed I/O shield simplifies rear-panel alignment. Clear the CMOS with the onboard button if the system fails to post after a memory change. The primary x16 slot shares bandwidth with the M.2 slots, so populating both M.2 connectors may reduce the top slot to x8 electrically.

Interface Limits

Dual-channel DDR4 tops out at 2933 MHz on this chipset; faster modules will downclock. PCIe 3.0 caps the primary graphics slot at 16 GT/s and the secondary x16 slot at x4 speed. SATA III remains limited to 6 Gbps per port, while the two M.2 interfaces share the same PCH lanes as the extra PCIe slots. The 2.5 Gbps and 1 Gbps LAN controllers each negotiate their rated maximum only with a matching switch port.

Highlights

  • Supports 10th Gen Intel Core and Pentium Gold processors on LGA 1200 socket
  • Dual-channel DDR4 memory up to 2933MHz with 128GB maximum capacity
  • Primary PCIe 3.0 x16 slot from CPU runs at x16 mode for graphics
  • 5Gbps Realtek LAN plus 1Gbps Intel LAN for wired networking
  • 1-channel Realtek ALC1200 audio with S/PDIF output

Specifications

BrandMSI
SeriesMSI MAG B460 TOMAHAWK
ModelMSI MAG B460 TOMAHAWK
CPU Socket TypeLGA 1200
CPU TypeSupports 10th Gen Intel Core and Pentium Gold / Celeron processors for LGA1200 socket
ChipsetIntel B460
Memory StandardSupports dual-channel DDR4 2933MHz memory (maximum)
Maximum Memory Supported128GB
PCI Slots1x PCIe 3.0 x16 slot (From CPU, PCI_E1), supports x16 mode
1x PCIe 3.0 x16 slot (From PCH, PCI_E3), supports x4 mode 1
2x PCIe 3.0 x1 slots (From PCH)
SATA RAID2XM.2 interface, 6xSATA III interface
Audio ChipsetRealtek ALC1200 Codec
7.1-Channel High Definition Audio
Supports S/PDIF output
LAN Chipset1x Realtek RTL8125B 2.5Gbps LAN controller
1x Intel I219V 1Gbps LAN controller
Onboard USBIntel B460 Chipset
6x USB 3.2 Gen 1 5Gbps ports (4 Type-A ports on the back panel, 2 ports through the internal USB 3.2 Gen 1 connector)
1x USB 3.2 Gen 1 5Gbps port (1 Type-C internal connector)
6x USB 2.0 ports (2 Type-A ports on the back panel, 4 ports through the internal USB 2.0 connectors)
ASMedia ASM3241 Chipset
1x USB 3.2 Gen 2x2 20Gbps Type-C port on the back panel

Questions about this item

How can I confirm the 2.5Gbps LAN is active after build?

Check Windows Device Manager or your OS network settings for the Realtek RTL8125B adapter and verify the link speed shows 2.5Gbps when connected to a matching switch.

What accessories come in the box and what must I source myself?

The package includes the motherboard, a CMOS battery, one SATA cable, and the rear I/O shield. CPU cooler, RAM, storage drives, and power cables are not included.

Which memory kit should I choose for this DDR4 board?

Select a dual-channel DDR4 kit rated up to 2933MHz; the board supports a maximum of 128GB total capacity across its slots.

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