Lenovo ThinkStation P520

Type 30BF Desktop, from 2019 9 hardware reports
Memory
Up to 64 GB
8 full-size slots
Drives and power
Coming next
Checked from separate sources
Upgradable

Yes. 8 slots, up to 64 GB seen working.

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

Slots
8 DIMM slots
Type
DDR4-2666 288-pin DIMM
Most seen working
64 GB in two or more machines
Firmware says
3072 GB maximum (often wrong, so we show what machines run)
How sure
9 of 9 reports show this layout
See 8 GB DDR4-2666 DIMM on AmazonOpens an Amazon search for this exact spec.

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

8 full-size slots
Illustration

Questions

Can I upgrade the RAM in the Lenovo ThinkStation P520?

Yes. 8 slots, up to 64 GB seen working. It takes DDR4-2666 full-size sticks (DIMM).

What type of RAM does the Lenovo ThinkStation P520 use?

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

How much RAM can the Lenovo ThinkStation P520 take?

Machines in the reports run up to 64 GB. The firmware reports a maximum of 3072 GB, a figure that is often wrong.

Is this my desktop?

Check the label on the bottom. It should say ThinkStation P520, and the type code starts with 30BF. Other type codes share this name: 30BE.

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