@Josh | NFC Have you spoken with Larry about the potential issues with the Eurocom bricks? I have only tried Revision 1.4 of the 400W DC-ATX (with and without the unified heatsink), so figuring out exactly what the issue is has been difficult as I've been using the same DC-DC power supply in my testing. I'd like to avoid Eurocom opening up my cable if possible, but there doesn't seem to be much else to test, assuming that the 400W DC-ATX is fine and that the brick doesn't crash with the laptop while running a game. Just out of curiosity, did the 1080 Ti system that you built on your livestream work fine? I believe a Revision 1.4 400W DC-ATX was used for it.
This is not a Eurocom only issue, unfortunately. This is happening with any and every brick out there. Part of the problem is that there have been at least three revisions of revision 1.4, so it has been hard for me to track down. The build I did was using an older HDPLEX 400, and yes, it worked fine.
HDPLEX products have been completely and totally solid and I look forward to this issue getting fixed. In the meantime until it can be proven to me that it is, I am recommending the Dynamo 360 + HDPLEX 160 which has been a solid option for me. The HDPLEX 400 has been my preferred choice because of simplicity and cable management, not because it is better than the Dynamo Duo.