Dell Inspiron M5040
Laptop, from 2011 12 hardware reports
Memory

Up to 6 GB
2 laptop-size slots
SSD and charger
Coming next
Checked from separate sources
Upgradable
Yes. 2 slots, up to 6 GB seen working.
It takes DDR3-1333 laptop-size sticks (SO-DIMM).
- Slots
- 2 SO-DIMM slots
- Type
- DDR3-1333 204-pin SO-DIMM
- Most seen working
- 6 GB in two or more machines; one machine runs 8 GB
- Firmware says
- 8 GB maximum (often wrong, so we show what machines run)
- How sure
- 12 of 12 reports show this layout
See 8 GB DDR3-1333 SO-DIMM on AmazonOpens an Amazon search for this exact spec.
Worked out from 12 hardware reports of this laptop. Sources and method. Updated 9 Nov 2026.

2 laptop-size slots
Illustration Questions
Can I upgrade the RAM in the Dell Inspiron M5040?
Yes. 2 slots, up to 6 GB seen working. It takes DDR3-1333 laptop-size sticks (SO-DIMM).
What type of RAM does the Dell Inspiron M5040 use?
DDR3-1333 laptop-size sticks (SO-DIMM, 204-pin).
How much RAM can the Dell Inspiron M5040 take?
Machines in the reports run up to 6 GB, and one runs 8 GB. The firmware reports a maximum of 8 GB, a figure that is often wrong.
Is this my laptop?
Check the model name on the label underneath. It should read Inspiron M5040.