Lenovo ThinkStation P340
Type 30DH Desktop, from 2020 5 hardware reports
Memory

Up to 32 GB
4 full-size slots
Drives and power
Coming next
Checked from separate sources
Upgradable
Yes. 4 slots, up to 32 GB seen working.
It takes DDR4-2933 full-size sticks (DIMM).
- Slots
- 4 DIMM slots
- Type
- DDR4-2933 288-pin DIMM
- Most seen working
- 32 GB in two or more machines; one machine runs 64 GB
- Firmware says
- 128 GB maximum (often wrong, so we show what machines run)
- How sure
- 5 of 5 reports show this layout
See 8 GB DDR4-2933 DIMM on AmazonOpens an Amazon search for this exact spec.
Worked out from 5 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 P340?
Yes. 4 slots, up to 32 GB seen working. It takes DDR4-2933 full-size sticks (DIMM).
What type of RAM does the Lenovo ThinkStation P340 use?
DDR4-2933 full-size sticks (DIMM, 288-pin).
How much RAM can the Lenovo ThinkStation P340 take?
Machines in the reports run up to 32 GB, and one runs 64 GB. The firmware reports a maximum of 128 GB, a figure that is often wrong.
Is this my desktop?
Check the label on the bottom. It should say ThinkStation P340, and the type code starts with 30DH. Other type codes share this name: 30DJ.
More in the Lenovo ThinkStation
- ThinkStation P500 (30A6)
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- ThinkStation P330 Tiny (30CE)
- ThinkStation P340 Tiny (30DF)
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- ThinkStation P310 (30AS)