ASUS TUF X299 MARK 1
Motherboard, from 2018 3 hardware reports
Memory

Up to 64 GB
8 full-size slots
SSD slots
Coming next
Checked from separate sources
Upgradable
Yes. 8 slots, up to 64 GB seen working.
It takes DDR4-3200 full-size sticks (DIMM).
- Slots
- 8 DIMM slots
- Type
- DDR4-3200 288-pin DIMM
- Most seen working
- 64 GB; one machine runs 64 GB
- Firmware says
- 1536 GB maximum
- How sure
- 2 of 3 reports show this layout
See 8 GB DDR4-3200 DIMM on AmazonOpens an Amazon search for this exact spec.
Worked out from 3 hardware reports of this motherboard. Sources and method. Updated 9 Nov 2026.
8 full-size slots
Illustration Questions
Can I upgrade the RAM in the ASUS TUF X299 MARK 1?
Yes. 8 slots, up to 64 GB seen working. It takes DDR4-3200 full-size sticks (DIMM).
What type of RAM does the ASUS TUF X299 MARK 1 use?
DDR4-3200 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 TUF X299 MARK 1.