Lenovo IdeaPad 100S-11IBY

Type 80R2 Laptop, from 2015 8 hardware reports
Memory
2 GB
In every report, slot unconfirmed
SSD and charger
Coming next
Checked from separate sources
Check before you buy

Check before you buy.

Every machine in the reports has exactly 2 GB. Some laptops report soldered memory as a slot, so we can't confirm a free slot on this one. Open the bottom panel or check the maker's manual first.

Slots listed
2 SO-DIMM slots
Type
DDR3-1333 204-pin SO-DIMM
Most seen working
2 GB in two or more machines
Firmware says
2 GB maximum
How sure
8 of 8 reports show this layout

Worked out from 8 hardware reports of this laptop. Sources and method. Updated 9 Nov 2026.

2 laptop-size slots listed by the firmware
Illustration

Questions

Can I upgrade the RAM in the Lenovo IdeaPad 100S-11IBY?

Check before you buy. Every machine in the reports has exactly 2 GB. Some laptops report soldered memory as a slot, so we can't confirm a free slot on this one. Open the bottom panel or check the maker's manual first.

What type of RAM does the Lenovo IdeaPad 100S-11IBY use?

DDR3-1333 laptop-size sticks (SO-DIMM, 204-pin).

How much RAM can the Lenovo IdeaPad 100S-11IBY take?

Machines in the reports run up to 2 GB. That matches the 2 GB maximum the firmware reports.

Is this my laptop?

Check the label on the bottom. It should say IdeaPad 100S-11IBY, and the type code starts with 80R2.

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