Can The RM500X be used with no load on the +3.3 volt and a very light load +5 volt outputs?
I bought a SOHO (Small Office/Home Office) headless tower workstation/server for research, CAD, and software development back when I retired. It came with a 240W power supply, which is claimed to support the server with 2 hard drives and a DVD drive (its original configuration). The OEM power supply has two 12V outputs, +5VSB, -12V, a power on input and a power OK output. There are two DC to DC converters on the Motherboard that provide +5V and +3.3V from 12V as required for the motherboard and original disk drives.
I am starting a project that requires considerably more disk storage space, and want to add at least 4 more large disk drives with an LSI-SA9211 PCIe HBA adapter card (~10W) and maybe more ram. The RM550X looks like it would work for me, but there will be a light load on the +5V output from the additional disk drives and no load on the +3.3V output. From what I found when researching supplies, the RM550X generates a 12Volt supply internally and has post regulators for +5V and +3.3V so I think it should work without a problem. I looked through the manual and FAQ's, but did not find anything there. I didn't see a contact for Technical Support on the webpage, so I came here to look for a source of confirmation.
Thanks for your help.
IMDave