Dell Precision 5540
Laptop, from 2019 61 hardware reports
Memory
Up to 64 GB
2 laptop-size slots
Battery
56 Wh / 97 Wh
2 capacities fitted
SSD and charger
Coming next
Checked from separate sources
Upgradable
Yes. 2 slots, up to 64 GB seen working.
It takes DDR4-2667 laptop-size sticks (SO-DIMM).
- Slots
- 2 SO-DIMM slots
- Type
- DDR4-2667 260-pin SO-DIMM
- Most seen working
- 64 GB in two or more machines
- Firmware says
- 32 GB maximum (often wrong, so we show what machines run)
- How sure
- 61 of 61 reports show this layout
See 32 GB DDR4-2667 SO-DIMM on AmazonOpens an Amazon search for this exact spec.
From 61 reports of this machine in the Linux Hardware Database (CC BY 4.0). Updated 9 Nov 2026.
2 laptop-size slots
Illustration Battery
56 Wh or 97 Wh, depending on the battery fitted.
This model shipped with more than one battery. The capacity is printed on the battery itself, so check yours before you order.
From the design capacity the batteries report, in 61 reports. Updated 9 Nov 2026.
IllustrationQuestions
Can I upgrade the RAM in the Dell Precision 5540?
Yes. 2 slots, up to 64 GB seen working. It takes DDR4-2667 laptop-size sticks (SO-DIMM).
What type of RAM does the Dell Precision 5540 use?
DDR4-2667 laptop-size sticks (SO-DIMM, 260-pin).
How much RAM can the Dell Precision 5540 take?
Machines in the reports run up to 64 GB. The firmware reports a maximum of 32 GB, a figure that is often wrong.
What battery does the Dell Precision 5540 use?
A 56 Wh or a 97 Wh battery, going by the batteries in 61 reports.
Is this my laptop?
Check the model name on the label underneath. It should read Precision 5540.