HP Z8 G4 Workstation
Desktop, from 2019 2 hardware reports
Memory
Up to 128 GB
24 full-size slots
Drives and power
Coming next
Checked from separate sources
Only 2 machines reported so far, so this answer rests on few examples. Check the label or open the panel before you buy.
Upgradable
Yes. 24 slots, up to 128 GB seen working.
It takes DDR4-2133 full-size sticks (DIMM).
- Slots
- 24 DIMM slots
- Type
- DDR4-2133 288-pin DIMM
- Most seen working
- 128 GB; one machine runs 128 GB
- Firmware says
- 2304 GB maximum
- How sure
- 2 of 2 reports show this layout
See 4 GB DDR4-2133 DIMM on AmazonOpens an Amazon search for this exact spec.
Worked out from 2 hardware reports of this desktop. Sources and method. Updated 9 Nov 2026.
24 full-size slots
Illustration Questions
Can I upgrade the RAM in the HP Z8 G4 Workstation?
Yes. 24 slots, up to 128 GB seen working. It takes DDR4-2133 full-size sticks (DIMM).
What type of RAM does the HP Z8 G4 Workstation use?
DDR4-2133 full-size sticks (DIMM, 288-pin).
Is this my desktop?
Check the model name on the front or the label of the case. It should read Z8 G4 Workstation.