HP p6533w
Desktop, from 2010 3 hardware reports
Memory

Up to 16 GB
4 full-size slots
Drives and power
Coming next
Checked from separate sources
Upgradable
Yes. 4 slots, up to 16 GB seen working.
It takes DDR3-1066 full-size sticks (DIMM).
- Slots
- 4 DIMM slots
- Type
- DDR3-1066 240-pin DIMM
- Most seen working
- 16 GB in two or more machines
- Firmware says
- 16 GB maximum
- How sure
- 3 of 3 reports show this layout
See 4 GB DDR3-1066 DIMM on AmazonOpens an Amazon search for this exact spec.
Worked out from 3 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 HP p6533w?
Yes. 4 slots, up to 16 GB seen working. It takes DDR3-1066 full-size sticks (DIMM).
What type of RAM does the HP p6533w use?
DDR3-1066 full-size sticks (DIMM, 240-pin).
How much RAM can the HP p6533w take?
Machines in the reports run up to 16 GB. That matches the 16 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 p6533w.