Lenovo ThinkStation P330

Type 30CY Desktop, from 2020 4 hardware reports

Memory

Up to 64 GB

4 full-size slots

Drives and power

Coming next

Checked from separate sources

Upgradable

Yes. 4 slots, up to 64 GB seen working.

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

Slots: 4 DIMM slots
Type: DDR4-2666 288-pin DIMM
Most seen working: 64 GB in two or more machines; one machine runs 80 GB
Firmware says: 64 GB maximum
How sure: 4 of 4 reports show this layout

See 16 GB DDR4-2666 DIMM on AmazonOpens an Amazon search for this exact spec.

Worked out from 4 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 P330?

Yes. 4 slots, up to 64 GB seen working. It takes DDR4-2666 full-size sticks (DIMM).

What type of RAM does the Lenovo ThinkStation P330 use?

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

How much RAM can the Lenovo ThinkStation P330 take?

Machines in the reports run up to 64 GB, and one runs 80 GB. That matches the 64 GB maximum the firmware reports.

Is this my desktop?

Check the label on the bottom. It should say ThinkStation P330, and the type code starts with 30CY. Other type codes share this name: 30D1, 30C5, 30C6.