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Black ATX motherboard with silver heatsinks and CPU in socket, boxed combo

MSI

MSI MAG X870 TOMAHAWK WIFI AMD motherboard with Ryzen 7 9800X3D CPU Combo

SKU CH-E7RZ-7ZFN8

A motherboard and CPU bundle pairing an X870 chipset board with a Ryzen 7 9800X3D processor, offering DDR5 memory support up to 8400 MT/s, PCIe 5.0 graphics and storage slots, four M.2 connectors.

  • CPU socketAM5
  • ChipsetAMD X870
  • Form factorATX
  • Memory slot count4 × 288pin (DDR5)
  • Max supported RAM256 GB
  • Memory channelsDual Channel

CPU +R7 9800X3D

  • Ready-to-build combo with Ryzen 7 9800X3D CPU included
  • 80A SPS VRM and extended heatsink keep high-end CPU at full speed
  • DDR5 memory boost to 8400 MT/s across four slots up to 256GB
  • PCIe 5.0 x16 graphics slot plus four M.2 connectors up to 2280/110
  • Wi-Fi 7 with 320MHz channel and 5G LAN for low-latency networking

Combo foundation

This combo pairs the MSI MAG X870 TOMAHAWK WIFI motherboard with the AMD Ryzen 7 9800X3D processor on the AM5 platform. It targets gamers and creators who want a ready-matched CPU and board without separate compatibility checks. The X870 chipset unlocks PCIe 5.0 lanes from the CPU for graphics and primary storage. Dual-channel DDR5 support reaches 256 GB across four slots.

Upgrade threshold

The package replaces an older AM4 or early AM5 system when workloads demand PCIe 5.0 x16 bandwidth and DDR5 speeds up to 8400 MT/s. The jump is worth it if current storage or memory limits frame rates or compile times. Four M.2 connectors — two CPU-attached Gen5 slots for 2280/110 drives and one chipset Gen4 slot — remove the need for add-in cards. 5 Gbps LAN and Wi‑Fi 7 with a 320 MHz channel raise network ceilings.

Sustained behaviour

An 80 A SPS VRM and extended PWM heatsink keep the 9800X3D at full boost during long rendering or gaming sessions. The board’s enhanced circuit design spreads heat evenly across the power phase array. USB 4 at 40 Gbps maintains throughput for external NVMe enclosures without thermal throttling. EZ PCIe Release simplifies repeated GPU swaps for testing or service.

How it compares

Measured against everything we stock in Motherboards for AMD CPUs, at today’s prices. Recalculated every night.

Price $810.99
Pricier than about 79% of the 1,906 comparable items (median $224.49).

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Specifications

Product
Brand nameMSI
Model nameMAG X870 TOMAHAWK WIFI+R7 9800 × 3D
Processor
CPU socketAM5
ChipsetAMD X870
Memory
Memory slot count4 × 288pin (DDR5)
Max supported RAM256 GB
Memory channelsDual Channel
ECC supportNon-ECC
BufferingUn-buffered
Storage
SATA ports4 x SATA 6Gb/s
M.2 slotsM2_1 slot (From CPU)
- Supports up to PCIe 5.0 x4
- Supports 2280/110 storage devices
M2_2 slot (From CPU)
- Supports up to PCIe 5.0 x4
- Supports 2260/80 storage devices
M2_3 slot (From Chipset)
- Supports up to PCIe 4.0 x2
- Supports 2260/80 storage devices
M2_4 slot (From Chipset)
- Supports up to PCIe 4.0 x4
- Supports 2260/80 storage devices
* The M2_2 slot will be unavailable when using Ryzen 5 8500G processor.
** PCI_E3 slot will run at x2 speed when installing device in the M2_3 slot
SATA and RAID supportSupports RAID 0, RAID 1 and RAID 10 for M.2 NVMe storage devices
Audio & video
Audio chipRealtek ALC4080
Sound channels7.1 Channels
Connectivity
Ethernet controllerRealtek 8126-VB
Maximum network speed5 Gbit/s
Wi-Fi standardWi-Fi 802.11 be
Bluetooth support5.4
Ports & slots
PCIe 5.0 x16 slotsPCI_E1 slot (From CPU) Supports up to PCIe 5.0 x16
PCIe x4 slotsPCI_E3 slot (From Chipset X870) Supports up to PCIe 4.0 x4
PCIe x1 slotsPCI_E2 slot (From Chipset X870) Supports up to PCIe 3.0 x1
Power
Power connectors1 × 24-pin Power Connector (ATX_PWR)
2 × 8-pin Power Connector (CPU_PWR)
1 × 8-pin Power Connector (PCIE_PWR)
Size & build
Form factorATX
Width and length12.0 in × 9.6 in
More details
BIOS1x 256 Mb flash
UEFI AMI BIOS
ACPI 6.4, SMBIOS 3.7
Multi-language

Other versions of this model

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Questions about this item

What case clearance and power connectors does the 80A SPS VRM and extended heatsink on this MAG X870 TOMAHAWK WIFI require?

The board uses a standard ATX form factor with an 80A SPS VRM cooled by an extended PWM heatsink; it needs a case that fits ATX motherboards and an 8-pin plus 4-pin CPU power connector for the VRM.

How do I use the EZ PCIe Release button when installing a graphics card in the PCIe 5.0 x16 slot, and what step do people miss?

Press the EZ PCIe Release button to unlock the PCI_E1 slot retention latch before inserting the card, then press it again after the card clicks in to ensure the latch re-engages; the missed step is relocking the latch.

Which M.2 slots support Gen5 speeds and what drive lengths fit each slot for future upgrades?

M2_1 and M2_2 run from the CPU at PCIe 5.0 x4; M2_1 accepts 2280 and 22110 drives, M2_2 accepts 2260 and 2280 drives, while M2_3 runs from the chipset at PCIe 4.0 speeds.

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