Hello iMaxx,
I would not know how the system performs with "standard hardware", as I didn't receive the system as a fully configured put together system.
All I received when I purchased it as a project was the tower, power supply, cables, system board, and CPU. I had to put it together to get it up and working. So I wouldn't be able to answer the question of whether it functions properly with the newly added hardware removed, since I didn't receive it with the standard stuff?
I know I've seen lists of which CPUs (by manufacturer, specifics and description) are compatible with the HP Workstations based on version/revision dates. But I've never seen a document that indicates which specific manufacturer or particular product RAM types are supported. All I have read is this page here:
http://h20331.www2.hp.com/hpsub/downloads/z620_memory_configurations.pdf
It references a Memory Technology White Paper, but I haven't seen that. According to that document it said that the Workstation supported:
- 2 GB and 4 GB PC3-12800E 1600MHz DDR3 Unbuffered ECC DIMMs
- 4 GB and 8 GB PC3-12800R 1600MHz DDR3 Registered DIMMs
- 1.35V and 1.5V DIMMs are supported, but the system will operate the DIMMs at 1.5V only.
- 2 Gb and 4 Gb based DIMMs are supported.
So I am guessing that I need to obtain RAM that fits more the specifications in the first and second bullet points? Because the third and fourth sound a bit more vague and open ended.
Mr. J.