Dell OptiPlex 380

Desktop, from 2009 44 hardware reports
Memory
Up to 8 GB
2 full-size slots
Drives and power
Coming next
Checked from separate sources
Upgradable

Yes. 2 slots, up to 8 GB seen working.

It takes DDR3-1066 full-size sticks (DIMM).

Slots
2 DIMM slots
Type
DDR3-1066 240-pin DIMM
Most seen working
8 GB in two or more machines
Firmware says
4 GB maximum (often wrong, so we show what machines run)
How sure
44 of 44 reports show this layout
See 4 GB DDR3-1066 DIMM on AmazonOpens an Amazon search for this exact spec.

Worked out from 44 hardware reports of this desktop. Sources and method. Updated 9 Nov 2026.

2 full-size slots
Illustration

Questions

Can I upgrade the RAM in the Dell OptiPlex 380?

Yes. 2 slots, up to 8 GB seen working. It takes DDR3-1066 full-size sticks (DIMM).

What type of RAM does the Dell OptiPlex 380 use?

DDR3-1066 full-size sticks (DIMM, 240-pin).

How much RAM can the Dell OptiPlex 380 take?

Machines in the reports run up to 8 GB. The firmware reports a maximum of 4 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 OptiPlex 380.