HP Pavilion Desktop 590-p0xxx

Desktop, from 2018 31 hardware reports
Memory
Up to 32 GB
2 full-size slots
Drives and power
Coming next
Checked from separate sources
Upgradable

Yes. 2 slots, up to 32 GB seen working.

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

Slots
2 DIMM slots
Type
DDR4-2666 288-pin DIMM
Most seen working
32 GB in two or more machines
Firmware says
32 GB maximum
How sure
31 of 31 reports show this layout
See 16 GB DDR4-2666 DIMM on AmazonOpens an Amazon search for this exact spec.

Worked out from 31 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 HP Pavilion Desktop 590-p0xxx?

Yes. 2 slots, up to 32 GB seen working. It takes DDR4-2666 full-size sticks (DIMM).

What type of RAM does the HP Pavilion Desktop 590-p0xxx use?

DDR4-2666 full-size sticks (DIMM, 288-pin).

How much RAM can the HP Pavilion Desktop 590-p0xxx take?

Machines in the reports run up to 32 GB. That matches the 32 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 Pavilion Desktop 590-p0xxx.

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