MSI MEG Z790 ACE MAX
Board code MS-7D86 Motherboard, from 2023 2 hardware reports
Memory
Up to 192 GB
4 full-size slots
SSD slots
Coming next
Checked from separate sources
Only 2 machines reported so far, so this answer rests on few examples. Check the label or open the panel before you buy.
Upgradable
Yes. 4 slots, up to 192 GB seen working.
It takes DDR5-4000 full-size sticks (DIMM).
- Slots
- 4 DIMM slots
- Type
- DDR5-4000 288-pin DIMM
- Most seen working
- 192 GB; one machine runs 192 GB
- Firmware says
- 128 GB maximum
- How sure
- 2 of 2 reports show this layout
See 32 GB DDR5-4000 DIMM on AmazonOpens an Amazon search for this exact spec.
Worked out from 2 hardware reports of this motherboard. Sources and method. Updated 9 Nov 2026.
4 full-size slots
Illustration Questions
Can I upgrade the RAM in the MSI MEG Z790 ACE MAX?
Yes. 4 slots, up to 192 GB seen working. It takes DDR5-4000 full-size sticks (DIMM).
What type of RAM does the MSI MEG Z790 ACE MAX use?
DDR5-4000 full-size sticks (DIMM, 288-pin).
Is this my motherboard?
The model name is printed on the board, usually between the memory slots or near the CPU socket. In Windows, open System Information and look at "BaseBoard Product"; it should read MEG Z790 ACE MAX or MS-7D86.
More MSI Z790 boards
- PRO Z790-P WIFI (MS-7E06)
- MAG Z790 TOMAHAWK WIFI (MS-7D91)
- PRO Z790-A WIFI (MS-7E07)
- PRO Z790-A MAX WIFI (MS-7E07)
- MPG Z790 CARBON WIFI (MS-7D89)
- PRO Z790-P WIFI DDR4 (MS-7E06)
- MAG Z790 TOMAHAWK MAX WIFI (MS-7E25)
- Z790 GAMING PLUS WIFI (MS-7E06)
- MAG Z790 TOMAHAWK WIFI DDR4 (MS-7D91)
- MPG Z790 EDGE TI MAX WIFI (MS-7E25)
- MEG Z790 GODLIKE (MS-7D85)
- MEG Z790 ACE (MS-7D86)