Fujitsu ESPRIMO P400

Desktop, from 2011 10 hardware reports
Memory
Up to 8 GB
4 full-size slots
Drives and power
Coming next
Checked from separate sources

5 of 10 machines sold under this name show 2 slots instead of 4. That is usually the smaller case. Count the slots inside yours before you buy.

Depends on the configuration

It depends on the configuration.

The reports show more than one memory layout for this desktop. Check the label or the system information before you buy.

Slots
4 DIMM slots
Type
DDR3-1333 240-pin DIMM
Most seen working
8 GB in two or more machines; one machine runs 16 GB
Firmware says
16 GB maximum (often wrong, so we show what machines run)
How sure
5 of 10 reports show this layout
See 8 GB DDR3-1333 DIMM on AmazonOpens an Amazon search for this exact spec.

Worked out from 10 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 Fujitsu ESPRIMO P400?

It depends on the configuration: the reports show more than one memory layout for this desktop.

What type of RAM does the Fujitsu ESPRIMO P400 use?

DDR3-1333 full-size sticks (DIMM, 240-pin).

How much RAM can the Fujitsu ESPRIMO P400 take?

Machines in the reports run up to 8 GB, and one runs 16 GB. The firmware reports a maximum of 16 GB, a figure that is often wrong.

Is this my desktop?

Check the model name on the front or the label of the case. It should read ESPRIMO P400.