Dell OptiPlex 580

Desktop, from 2010 4 hardware reports
Memory
Up to 8 GB
4 full-size slots
Drives and power
Coming next
Checked from separate sources
Upgradable

Yes. 4 slots, up to 8 GB seen working.

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

Slots
4 DIMM slots
Type
DDR3-1066 240-pin DIMM
Most seen working
8 GB in two or more machines
Firmware says
8 GB maximum
How sure
4 of 4 reports show this layout
See 8 GB DDR3-1066 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 Dell OptiPlex 580?

Yes. 4 slots, up to 8 GB seen working. It takes DDR3-1066 full-size sticks (DIMM).

What type of RAM does the Dell OptiPlex 580 use?

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

How much RAM can the Dell OptiPlex 580 take?

Machines in the reports run up to 8 GB. That matches the 8 GB maximum the firmware reports.

Is this my desktop?

Check the model name on the front or the label of the case. It should read OptiPlex 580.