Lenovo IdeaPad 3 15IML05

Type 81WR Laptop, from 2020 10 hardware reports
Memory
Up to 12 GB
1 laptop-size slot + soldered
SSD and charger
Coming next
Checked from separate sources
Partly soldered

Yes, you can add one stick. Up to 12 GB seen working.

4 GB is soldered to the board and one slot is free for a DDR4-2666 laptop-size stick.

Free slots
1 SO-DIMM slot
Type
DDR4-2666 260-pin SO-DIMM
Soldered
4 GB
Most seen working
12 GB in two or more machines
Firmware says
12 GB maximum
How sure
10 of 10 reports show this layout
See 8 GB DDR4-2666 SO-DIMM on AmazonOpens an Amazon search for this exact spec.

Worked out from 10 hardware reports of this laptop. Sources and method. Updated 9 Nov 2026.

1 laptop-size slot plus soldered memory
Illustration

Questions

Can I upgrade the RAM in the Lenovo IdeaPad 3 15IML05?

Yes, you can add one stick. Up to 12 GB seen working. 4 GB is soldered to the board and one slot is free for a DDR4-2666 laptop-size stick.

What type of RAM does the Lenovo IdeaPad 3 15IML05 use?

DDR4-2666 laptop-size sticks (SO-DIMM, 260-pin).

How much RAM can the Lenovo IdeaPad 3 15IML05 take?

Machines in the reports run up to 12 GB. That matches the 12 GB maximum the firmware reports.

Is this my laptop?

Check the label on the bottom. It should say IdeaPad 3 15IML05, and the type code starts with 81WR. Other type codes share this name: 81WB, 82BS.

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