ECS A55F-M3
Motherboard, from 2011 4 hardware reports
Memory

Up to 12 GB
2 full-size slots
SSD slots
Coming next
Checked from separate sources
Upgradable
Yes. 2 slots, up to 12 GB seen working.
It takes DDR3-1333 full-size sticks (DIMM).
- Slots
- 2 DIMM slots
- Type
- DDR3-1333 240-pin DIMM
- Most seen working
- 12 GB; one machine runs 12 GB
- Firmware says
- 64 GB maximum
- How sure
- 4 of 4 reports show this layout
See 4 GB DDR3-1333 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.
2 full-size slots
Illustration Questions
Can I upgrade the RAM in the ECS A55F-M3?
Yes. 2 slots, up to 12 GB seen working. It takes DDR3-1333 full-size sticks (DIMM).
What type of RAM does the ECS A55F-M3 use?
DDR3-1333 full-size sticks (DIMM, 240-pin).