HP Pavilion Desktop 590-a0xxx

Desktop, from 2018 6 hardware reports
Which case is yours?
The two cases take different memory. A micro or mini case is the size of a hardback book and runs from a laptop-style power brick.
Memory
Up to 8 GB
2 full-size slots
Memory
Up to 8 GB
2 laptop-size slots
Drives and power
Coming next
Checked from separate sources
Upgradable

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

It takes DDR4-2133 full-size sticks (DIMM).

Slots
2 DIMM slots
Type
DDR4-2133 288-pin DIMM
Most seen working
8 GB in two or more machines
Firmware says
32 GB maximum (often wrong, so we show what machines run)
How sure
4 of 6 reports show this layout
See 4 GB DDR4-2133 DIMM on AmazonOpens an Amazon search for this exact spec.

Worked out from 6 hardware reports of this desktop. Sources and method. Updated 9 Nov 2026.

2 full-size slots
Illustration
Upgradable

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

It takes DDR4-2400 laptop-size sticks (SO-DIMM).

Slots
2 SO-DIMM slots
Type
DDR4-2400 260-pin SO-DIMM
Most seen working
8 GB
How sure
2 of 6 reports show this layout
See 4 GB DDR4-2400 SO-DIMM on AmazonOpens an Amazon search for this exact spec.

Worked out from 6 hardware reports of this desktop. Sources and method. Updated 9 Nov 2026.

2 laptop-size slots
Illustration

Questions

Can I upgrade the RAM in the HP Pavilion Desktop 590-a0xxx?

Yes. 2 slots, up to 8 GB seen working. It takes DDR4-2133 full-size sticks (DIMM).

What type of RAM does the HP Pavilion Desktop 590-a0xxx use?

DDR4-2133 full-size sticks (DIMM, 288-pin).

How much RAM can the HP Pavilion Desktop 590-a0xxx take?

Machines in the reports run up to 8 GB. The firmware reports a maximum of 32 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 Pavilion Desktop 590-a0xxx.

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