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MSI MEG Z790 ACE E-ATX motherboard black with silver heatsinks and gold accents

MSI

MSI MEG Z790 ACE Intel motherboard LGA 1700 DDR5 256GB

SKU CH-A2CH-0GXD8

An E-ATX Intel Z790 board for LGA 1700 CPUs with DDR5 up to 256GB and 7.1 audio

  • 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 12, 13, 14 Gen processors via LGA 1700 socket
  • Dual-channel DDR5 memory up to 7800 MHz overclocked and 256 GB capacity
  • Primary PCIe 5.0 x16 slot plus secondary x8 slot for high-bandwidth graphics and storage
  • Realtek ALC4082 with ESS ES9280AQ DAC delivers 7.1-channel audio up to 32-bit 384 kHz
  • Dual Intel 2.5 Gbps LAN and extensive USB including 20 Gbps Type-C ports

Platform foundation

The MSI MEG Z790 ACE is an Intel Z790 motherboard built for the LGA 1700 socket. It supports 12th, 13th and 14th generation Intel Core processors along with Pentium Gold and Celeron CPUs. The board uses an E-ATX form factor and provides four memory slots with a maximum capacity of 256GB.

Enthusiast fit

Builders who need extensive high-speed storage and rear I/O connectivity will benefit from the five M.2 interfaces, six SATA ports and seven USB 10Gbps Type-A ports on the back panel. Users requiring a smaller Micro-ATX board or legacy PCI slots should consider other models.

Memory ceiling

The four DDR5 slots accept dual-channel kits up to 256GB total, running at JEDEC speeds from 4800 to 5600 MHz and overclocked profiles up to 7800 MHz. Confirm your kit appears on the qualified vendor list before purchase.

How it compares

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

Price $529.99
Pricier than about 91% of the 2,965 comparable items (median $97.99).

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Specifications

Product
Brand nameMSI
Product lineMSI MEG Z790 ACE
Model nameMSI MEG Z790 ACE
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 2.0 interface (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

How do I install the motherboard in an E-ATX case and which standoff alignment step is often missed?

Mount the board using all E-ATX standoff holes; the extra holes near the rear I/O are frequently skipped, leaving the PCB unsupported at the corners.

What maintenance or replacement will the onboard Realtek ALC4082 and ESS ES9280AQ audio solution need later?

The only serviceable part is the supplied CMOS battery; replace it when the system loses time or BIOS settings after power-off.

What limit appears first during sustained heavy loads on the 16+1+1 phase VRM?

VRM temperature rises first; the heatsink and fan assembly must move enough air to keep the power stages within their thermal envelope.

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