I reported the issue to Supermicro first, and they even looked into getting a device for testing, but stock seems to be out or held and only pre-orders are available currently. They offered to have me send mine out, but acknowledged it would likely take weeks to ship, investigate and track down. My case# with them was SM1609221320 if that helps.
Please let me know if there are any tests. traces or logs I can capture to assist.
This message was posted on behalf of Intel Corporation
I'm sorry the SR300 camera is not working on your system. Thanks for testing the camera on other systems. That shows that the camera itself is working fine. I do not see any red flags in the reports you sent or in the specs for the C236 that would be responsible for the failed enumeration.
Did you try connecting the camera to a different USB3 port on the motherboard?
If the camera works on other systems and does not work on your Supermicro (SM) motherboard then it is probably related to the motherboard itself. In this case, it is best to pursue the issue with SM.
Intel Customer Support for RealSense
In hopes of a cheap and easy fix, I ordered a Fresco Logic based USB 3.0 PCIe card. It arrived today, and the camera does not work with it either. This leads me to believe the issue I'm having is software related, likely some problem with my Windows 10 installation or USB stack.
I'm going to try with a fresh Windows install sometime later, but now consider this issue "solved", or at least not Intel's fault