The 3-pin cable that was packaged with the pumps, I believe... I have tried several different configurations. From the pump to the mobo, from the pump to a different mobo, connected to the powered on Aquearo 6... All while connected to power vie the molex. So, the pumps should power one when connected to power via the molex? Yep, they're definitely not doing that.

Both of them do the same thing.

I have recently built a dual custom loop and would like to leak test it for 12-24 hours. Is it possible for the d5 pumps to be powered without being connected and configured to a pc/Aquearo? I fully intend to do so, but only once I know that it is safe to connect my components to power. So, far I have managed to run the d5 pumps each for about 15 seconds before they stop and now they will not run at all. Is this because they need to be configured via Aquasite, or are the D5 pumps supposed to run...