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ATX motherboard with Ryzen 7 9700X CPU installed, black finish, silver heatsinks

MSI

MSI MEG X870E ACE MAX AMD motherboard & Ryzen 7 9700X CPU combo

SKU CH-K42H-VFZ98

ATX AM5 motherboard and 8-core Ryzen CPU with 16 threads, 5.5 GHz boost, 40 MB cache, 110 A VRM, DDR5 up to 9000 MT/s, 64 MB BIOS, 10 GbE plus 5 GbE LAN, four SATA ports and five M.2 slots

  • CPU socketAM5
  • ChipsetAMD X870E
  • Form factorATX
  • South bridgeAMD X870E
  • Memory slot count4 × 288pin (DDR5)
  • Max supported RAM256 GB

CPU +Ryzen 7 9700X

  • Ready for next-gen CPUs with 64 MB BIOS capacity
  • Maximum CPU power from 18+2+1 DRPS and 110A SPS
  • DDR5 speeds up to 9000+ MT/s overclocked on four slots
  • 10G and 5G LAN deliver high-throughput networking
  • Ryzen 7 9700X hits 5.5 GHz boost with 8 cores and 16 threads

Ready for next-gen AM5 builds

The combo pairs an MEG X870E ACE MAX motherboard with a Ryzen 7 9700X processor. The board supports Ryzen 9000, 8000 and 7000 series CPUs on the AM5 socket. The CPU delivers 8 cores and 16 threads with a max boost clock of 5.5 GHz and 40 MB cache. It is unlocked for overclocking and supports DDR5-5600 memory.

64 MB BIOS and OC Engine

A 64 MB BIOS ROM improves compatibility with future CPU upgrades. The OC Engine clock generator works with the 18+2+1 DRPS power design rated at 110A SPS to unlock maximum CPU performance. Frozr AI software coordinates the wavy fin heatsink, cross heat-pipe, aluminium cover, double-sided M.2 shields and metal backplate for thermal control.

10G and 5G LAN plus five M.2 slots

Onboard 10G and 5G LAN ports provide high-throughput wired networking. Five M.2 sockets accept PCIe 5.0 x4 and 4.0 x4 drives alongside four SATA 6Gb/s ports. The Realtek ALC4082 audio codec handles sound. Four DDR5 slots support up to 256 GB in dual channel at speeds beyond 9000 MT/s when overclocked.

How it compares

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

Price $1,008.99
Pricier than about 89% of the 1,906 comparable items (median $224.49).

New to this? Buying PC parts with Monero — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameMSI
Product lineMEG
Model nameMEG X870E ACE MAX+R7 9700X
Processor
CPU socketAM5
ChipsetAMD X870E
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 slots5 x M.2 (Support PCIe 5.0 x4 & PCIe 4.0 x4)
SATA and RAID support0/1/10
Audio & video
Audio chipRealtek ALC4082
Sound channels7.1 Channels
Connectivity
Ethernet controllerMarvell AQC113CS, Realtek 8126
Second LAN controllerRealtek 8126
Maximum network speed10 Gbit/s + 5 Gbit/s
Wi-Fi standardWiFi IEEE 802.11 a / b / g / n / ac / ax / be
Bluetooth supportYes
Ports & slots
PCIe 5.0 x16 slots2 x PCI Express 5.0 x16
PCIe 4.0 x16 slots2 x PCI Express 4.0 x16
PCIe x16 slots2 x PCI Express x16
PCIe x4 slots1 x PCI Express x4
Additional slots1 x M.2 (Key-E)
Rear panel ports9 x USB 10 Gbit/s Type-A, 2 x USB 10 Gbit/s Type-C, 2 x USB 40 Gbit/s Type-C, 1 x HDMI, 1 × 10G LAN, 1 × 5G LAN, 1 x Optical S/PDIF-Out
Video connectorsHDMI + 2 x Display Port
HDMI ports1 x HDMI
Ethernet port2 x RJ45
DisplayPort connectors2 x DisplayPort
USB 3.1 ports11 x USB 3.1
USB 3.0 ports4 x USB 3.0
USB 2.0 ports4 x USB 2.0
USB-C ports2 x USB Type-C® port, with USB 40 Gbit/s support; 2 x USB Type-C® port, with USB 10 Gbit/s support; 1 x USB Type-C® port, with USB 20 Gbit/s support
S/PDIF output1 x Optical
Audio jacks5 Ports
Onboard USB headers4 x USB 3.2 + 4 x USB 2.0 + 1 x USB Type-C header, with USB 3.2 Gen 2 × 2
Power
Power connectors24 Pin
Size & build
Form factorATX
Width and length243.84 mm × 304.8 mm
Compatibility
Windows 11 supportSupported
More details
South bridgeAMD X870E
S-videoNo
LightingRGB

Other versions of this model

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Questions about this item

Will the 64 MB BIOS ROM need to be updated for future CPU upgrades?

The 64 MB BIOS ROM is designed to support next-level CPU upgrades with better compatibility, so future processors should be recognised without a physical ROM replacement.

What limits the VRM under sustained heavy loads?

The 18+2+1 DRPS power stages are rated at 110 A SPS each, so the current ceiling of those stages is the first limit reached during prolonged all-core workloads.

How loud and hot does the Frozr heatsink get when the system runs all day?

The Wavy Fin design, direct-touch cross heat-pipe, aluminium cover, double-sided M.2 shields and metal backplate are managed by Frozr AI software to keep temperatures low and fan noise minimal during continuous operation.

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