Lenovo ThinkStation P330

Type 30C6 Desktop, from 2018 2 hardware reports

Drives and power

Coming next

Checked from separate sources

Only 2 machines reported so far, so this answer rests on few examples. Check the label or open the panel before you buy.

Upgradable

Yes. 4 slots, up to 16 GB seen working.

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

Slots: 4 DIMM slots
Type: DDR4-2666 288-pin DIMM
Most seen working: 16 GB in two or more machines
Firmware says: 64 GB maximum (often wrong, so we show what machines run)
How sure: 2 of 2 reports show this layout

See 4 GB DDR4-2666 DIMM on AmazonOpens an Amazon search for this exact spec.

Worked out from 2 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 16 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 16 GB. The firmware reports a maximum of 64 GB, a figure that is often wrong.

Is this my desktop?

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