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Dark rectangular E-ATX motherboard with black PCB silver heatsinks and gold accents

MSI

MSI MEG Z790 ACE MAX Intel motherboard

SKU CH-JXPX-VKQYA

Supports Intel Core 12th, 13th and 14th Gen processors with up to 256GB DDR5 memory and multiple high-speed USB ports

  • ProcessorSupport Intel Core™ 14th/ 13th/ 12th Gen Processors, Intel P
  • ChipsetIntel Z790
  • CPU socketLGA 1700
  • Supported memorySupport dual channel DDR5 7800 + (OC)/7600 (OC)/7400 (OC)/72
  • Max supported RAM256 GB
  • PCI slots3X PCI-E x16 slots (quantity) PCI_E1 Gen PCIe 5.0 supports u
  • Supports Intel Core 12th 13th 14th Gen processors on LGA 1700 socket
  • Dual channel DDR5 memory up to 7800 MHz OC with 256GB maximum capacity
  • Realtek ALC4082 plus ESS ES9280AQ audio delivers 7.1 channel 32 bit 384 kHz playback
  • Dual Intel 2.5Gbps LAN plus USB 20Gbps Type C and USB 10Gbps ports front and rear
  • PCIe 5.0 x16 and x8 slots from CPU plus PCIe 4.0 x4 from chipset for expansion

Platform Ready for 12th 13th 14th Gen Intel

This E-ATX motherboard uses the Intel Z790 chipset and an LGA 1700 socket. It supports Intel Core processors from the 12th 13th and 14th generations as well as Pentium Gold and Celeron CPUs. Four DDR5 slots accept up to 256 GB of memory running at speeds from 4800 up to 7800 MT/s when overclocked.

Enthusiast I/O Not for Compact Builds

The board targets enthusiasts who need three full-length PCIe slots with Gen 5 on the top two and Gen 4 on the third. Six SATA ports and five M.2 interfaces provide dense storage options. Builders working in small chassis should look elsewhere because the extended ATX form factor requires a compatible case.

Top PCIe 5.0 x16 Slot From CPU

The primary PCI_E1 slot connects directly to the processor and runs at PCIe 5.0 x16. This single lane allocation determines the maximum graphics or accelerator bandwidth available. Verify that your CPU and add-in card both support this generation to use the full width.

How it compares

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

Price $854.99
Pricier than about 92% of the 2,965 comparable items (median $97.99).

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Specifications

Product
Brand nameMSI
Product lineMSI MEG Z790 ACE MAX
Model nameMSI MEG Z790 ACE MAX
Processor
ProcessorSupport Intel Core™ 14th/ 13th/ 12th Gen Processors, Intel Pentium Gold and Celeron Processors
LGA 1700
CPU socketLGA 1700
ChipsetIntel Z790
Memory
Supported memorySupport dual channel DDR5 7800 + (OC)/7600 (OC)/7400 (OC)/7200 (OC)/7000 (OC)/6800 (OC)/6600 (OC)/6400 (OC)/6200 (OC)/6000 (OC)/5800 (OC)/5600 (JEDEC)/5400 (JEDEC)/5200 (JEDEC)/5000 (JEDEC)/4800 (JEDEC) MHz memory
Max supported RAM256 GB
Storage
SATA and RAID support5XM.2 interface, 6xSATA III interface
Audio & video
Audio chipRealtek ALC4082 Codec + ESS ES9280AQ Combo DAC/HPA
7.1-Channel USB High Performance Audio
Supports S/PDIF output
Supports up to 32-Bit/384 kHz playback on front panel
Connectivity
Ethernet controller2x Intel 2.5 Gbit/s LAN
Ports & slots
Onboard USB headers4X USB 2.0 (front)
4x USB 5 Gbit/s Type A (Front)
7x USB 10 Gbit/s Type A (Rear)
1x USB 10 Gbit/s Type C (Rear)
2x USB 20 Gbit/s Type C (Front)

Questions about this item

Will the 256GB DDR5 ceiling be the first limit I hit when running memory-heavy workloads all day?

The board supports up to 256GB of DDR5 across four slots, so capacity is the first hard ceiling you will reach with sustained heavy use.

How loud and hot does the VRM area get when the 14th Gen CPU draws full power continuously?

The extended heatsink with heatpipe and dual 8-pin CPU power connectors are designed to keep VRM temperatures in check during prolonged maximum loads.

Which DDR5 memory kits must I already own to reach the 7800 MT/s overclocked speed listed for this motherboard?

You need a DDR5 kit rated for 7800 MT/s or higher with XMP 3.0 profiles, installed in all four slots for dual-channel operation at that frequency.

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