MSI MAG Z390M MORTAR
Board code MS-7C00 Motherboard, from 2018 4 hardware reports
Memory
Up to 32 GB
4 full-size slots
SSD slots
Coming next
Checked from separate sources
Upgradable
Yes. 4 slots, up to 32 GB seen working.
It takes DDR4-2666 full-size sticks (DIMM).
- Slots
- 4 DIMM slots
- Type
- DDR4-2666 288-pin DIMM
- Most seen working
- 32 GB; one machine runs 32 GB
- Firmware says
- 64 GB maximum
- How sure
- 4 of 4 reports show this layout
See 8 GB DDR4-2666 DIMM on AmazonOpens an Amazon search for this exact spec.
Worked out from 4 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 MAG Z390M MORTAR?
Yes. 4 slots, up to 32 GB seen working. It takes DDR4-2666 full-size sticks (DIMM).
What type of RAM does the MSI MAG Z390M MORTAR use?
DDR4-2666 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 MAG Z390M MORTAR or MS-7C00.