Lenovo ThinkStation P520c

Type 30BX Desktop, from 2019 3 hardware reports
Memory
Up to 128 GB
4 full-size slots
Drives and power
Coming next
Checked from separate sources
Upgradable

Yes. 4 slots, up to 128 GB seen working.

It takes DDR4-2666 full-size sticks (DIMM).

Slots
4 DIMM slots
Type
DDR4-2666 288-pin DIMM
Most seen working
128 GB; one machine runs 128 GB
Firmware says
1536 GB maximum
How sure
3 of 3 reports show this layout
See 32 GB DDR4-2666 DIMM on AmazonOpens an Amazon search for this exact spec.

Worked out from 3 hardware reports of this desktop. Sources and method. Updated 9 Nov 2026.

4 full-size slots
Illustration

Questions

Can I upgrade the RAM in the Lenovo ThinkStation P520c?

Yes. 4 slots, up to 128 GB seen working. It takes DDR4-2666 full-size sticks (DIMM).

What type of RAM does the Lenovo ThinkStation P520c use?

DDR4-2666 full-size sticks (DIMM, 288-pin).

Is this my desktop?

Check the label on the bottom. It should say ThinkStation P520c, and the type code starts with 30BX. Other type codes share this name: 30BY.

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