HP ProDesk 600 G1 TWR
Desktop, from 2013 28 hardware reports
Memory

Up to 24 GB
4 full-size slots
Drives and power
Coming next
Checked from separate sources
Upgradable
Yes. 4 slots, up to 24 GB seen working.
It takes DDR3-1600 full-size sticks (DIMM).
- Slots
- 4 DIMM slots
- Type
- DDR3-1600 240-pin DIMM
- Most seen working
- 24 GB in two or more machines
- Firmware says
- 32 GB maximum (often wrong, so we show what machines run)
- How sure
- 28 of 28 reports show this layout
See 4 GB DDR3-1600 DIMM on AmazonOpens an Amazon search for this exact spec.
Worked out from 28 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 ProDesk 600 G1 TWR?
Yes. 4 slots, up to 24 GB seen working. It takes DDR3-1600 full-size sticks (DIMM).
What type of RAM does the HP ProDesk 600 G1 TWR use?
DDR3-1600 full-size sticks (DIMM, 240-pin).
How much RAM can the HP ProDesk 600 G1 TWR take?
Machines in the reports run up to 24 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 ProDesk 600 G1 TWR.