Lenovo ThinkStation P620

Type 30E0 Desktop, from 2020 13 hardware reports
Memory
Up to 128 GB
8 full-size slots
Drives and power
Coming next
Checked from separate sources
Upgradable

Yes. 8 slots, up to 128 GB seen working.

It takes DDR4-3200 full-size sticks (DIMM).

Slots
8 DIMM slots
Type
DDR4-3200 288-pin DIMM
Most seen working
128 GB in two or more machines; one machine runs 512 GB
Firmware says
512 GB maximum (often wrong, so we show what machines run)
How sure
13 of 13 reports show this layout
See 16 GB DDR4-3200 DIMM on AmazonOpens an Amazon search for this exact spec.

Worked out from 13 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 P620?

Yes. 8 slots, up to 128 GB seen working. It takes DDR4-3200 full-size sticks (DIMM).

What type of RAM does the Lenovo ThinkStation P620 use?

DDR4-3200 full-size sticks (DIMM, 288-pin).

How much RAM can the Lenovo ThinkStation P620 take?

Machines in the reports run up to 128 GB, and one runs 512 GB. The firmware reports a maximum of 512 GB, a figure that is often wrong.

Is this my desktop?

Check the label on the bottom. It should say ThinkStation P620, and the type code starts with 30E0. Other type codes share this name: 30E1.

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