Lenovo Legion Y540-17IRH-PG0
Type 81T3 Laptop, from 2020 4 hardware reports
Memory

Up to 16 GB
2 laptop-size slots
SSD and charger
Coming next
Checked from separate sources
Upgradable
Yes. 2 slots, up to 16 GB seen working.
It takes DDR4-2666 laptop-size sticks (SO-DIMM).
- Slots
- 2 SO-DIMM slots
- Type
- DDR4-2666 260-pin SO-DIMM
- Most seen working
- 16 GB in two or more machines; one machine runs 24 GB
- Firmware says
- 32 GB maximum (often wrong, so we show what machines run)
- How sure
- 4 of 4 reports show this layout
See 8 GB DDR4-2666 SO-DIMM on AmazonOpens an Amazon search for this exact spec.
Worked out from 4 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 Lenovo Legion Y540-17IRH-PG0?
Yes. 2 slots, up to 16 GB seen working. It takes DDR4-2666 laptop-size sticks (SO-DIMM).
What type of RAM does the Lenovo Legion Y540-17IRH-PG0 use?
DDR4-2666 laptop-size sticks (SO-DIMM, 260-pin).
How much RAM can the Lenovo Legion Y540-17IRH-PG0 take?
Machines in the reports run up to 16 GB, and one runs 24 GB. The firmware reports a maximum of 32 GB, a figure that is often wrong.
Is this my laptop?
Check the label on the bottom. It should say Legion Y540-17IRH-PG0, and the type code starts with 81T3.