Lenovo IdeaPad 100S-14IBR

Type 80R9 Laptop, from 2015 13 hardware reports
Memory
Up to 4 GB
1 laptop-size slot
SSD and charger
Coming next
Checked from separate sources
Upgradable

Yes. One slot, up to 4 GB seen working.

It takes DDR3-1600 laptop-size sticks (SO-DIMM).

Slots
1 SO-DIMM slot
Type
DDR3-1600 204-pin SO-DIMM
Most seen working
4 GB in two or more machines
Firmware says
8 GB maximum (often wrong, so we show what machines run)
How sure
9 of 13 reports show this layout
See 4 GB DDR3-1600 SO-DIMM on AmazonOpens an Amazon search for this exact spec.

Worked out from 13 hardware reports of this laptop. Sources and method. Updated 9 Nov 2026.

1 laptop-size slot
Illustration

Questions

Can I upgrade the RAM in the Lenovo IdeaPad 100S-14IBR?

Yes. One slot, up to 4 GB seen working. It takes DDR3-1600 laptop-size sticks (SO-DIMM).

What type of RAM does the Lenovo IdeaPad 100S-14IBR use?

DDR3-1600 laptop-size sticks (SO-DIMM, 204-pin).

How much RAM can the Lenovo IdeaPad 100S-14IBR take?

Machines in the reports run up to 4 GB. The firmware reports a maximum of 8 GB, a figure that is often wrong.

Is this my laptop?

Check the label on the bottom. It should say IdeaPad 100S-14IBR, and the type code starts with 80R9.

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