Lenovo IdeaPad S540-13API

Type 81XC Laptop, from 2021 5 hardware reports
Memory
Soldered
No slot to add more
SSD
1+ M.2
At least 1 M.2 SSD slot
SSD length and charger
Coming next
Checked from separate sources
Not upgradable

No. The memory is soldered to the board.

8 GB is built in and there is no slot to add more.

Free slots
None
Type
DDR4-2400
Soldered
8 GB
Firmware says
16 GB maximum (often wrong, so we show what machines run)
SSD slots
At least 1 M.2 SSD slot listed by the firmware
How sure
5 of 5 reports show this layout

Worked out from 5 hardware reports of this laptop. Sources and method. Updated 9 Nov 2026.

All soldered
Illustration

Questions

Can I upgrade the RAM in the Lenovo IdeaPad S540-13API?

No. The memory is soldered to the board. 8 GB is built in and there is no slot to add more.

What type of RAM does the Lenovo IdeaPad S540-13API use?

DDR4-2400 memory soldered to the board.

How much RAM can the Lenovo IdeaPad S540-13API take?

Machines in the reports run up to 8 GB. The firmware reports a maximum of 16 GB, a figure that is often wrong.

Does the Lenovo IdeaPad S540-13API have an M.2 SSD slot?

Yes. The firmware lists at least 1 M.2 SSD slot, in 5 reports. Some firmware leaves a slot out, so there may be more.

Is this my laptop?

Check the label on the bottom. It should say IdeaPad S540-13API, and the type code starts with 81XC.

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