Lenovo IdeaCentre 300-20ISH

Type 90DA Desktop, from 2015 8 hardware reports
Memory
Up to 16 GB
2 full-size slots
Drives and power
Coming next
Checked from separate sources
Upgradable

Yes. 2 slots, up to 16 GB seen working.

It takes DDR4-2133 full-size sticks (DIMM).

Slots
2 DIMM slots
Type
DDR4-2133 288-pin DIMM
Most seen working
16 GB in two or more machines; one machine runs 32 GB
Firmware says
32 GB maximum (often wrong, so we show what machines run)
How sure
8 of 8 reports show this layout
See 8 GB DDR4-2133 DIMM on AmazonOpens an Amazon search for this exact spec.

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

2 full-size slots
Illustration

Questions

Can I upgrade the RAM in the Lenovo IdeaCentre 300-20ISH?

Yes. 2 slots, up to 16 GB seen working. It takes DDR4-2133 full-size sticks (DIMM).

What type of RAM does the Lenovo IdeaCentre 300-20ISH use?

DDR4-2133 full-size sticks (DIMM, 288-pin).

How much RAM can the Lenovo IdeaCentre 300-20ISH take?

Machines in the reports run up to 16 GB, and one runs 32 GB. The firmware reports a maximum of 32 GB, a figure that is often wrong.

Is this my desktop?

Check the label on the bottom. It should say IdeaCentre 300-20ISH, and the type code starts with 90DA.

More in the Lenovo IdeaCentre