Hi guys,

I've recently re-built my loop and switched out regular D5 pumps (one had failed) and replaced them with 2x AQ D5 pumps (with USB and Aquabus).


I have a total of three mps devices. 2x D5 pumps and one high-flow USB flow meter. They are all connected to the Aquabus (4pin, via daisy chaining with y-connectors) to my 6XT. All three are directly connected to a separate USB header on my MoBo. MoBo is an Asus Sabertooth X79.


On initially hooking up - all three mps devices were visible on Aquasuite (2015 - 3). I renamed each D5 and assigned unique Aquabus addresses for each. The D5s have "Priority: aquabus" selected as I wish to control them from the 6XT/ Aquasuite.

After sometime one of the D5 pumps loses it's USB connection (USB with a red "X" icon instead of the little disk "save" icon). When this happens, the device is also not-visible via aquabus (pump speed not visible (orange warning) on my cooling stats page), and not listed under "currently connected aquabus devices" on the 6XT. (Can see the other 2 mps devices in this list).

Control and monitoring of this pump is recoverable only if I power down, and disconnect the USB header for this pump. It only recovers for a while. The connection is eventually lost again. I have tried different USB headers, and it still happens. I haven't tried changing the USB cable yet... but before I do too much troubleshooting... can anyone offer some suggestions?

Shoggy?

A bit of testing yields some more info: RPM has never been reported by the pump in question. Not via USB, nor Aquabus.I have swapped USB headers again - with the same result. I am going to reset the connection again, but this time leave the priority to: "USB" and leave it there. The problem does seem to occur when I switch back and forth from Aquabus to USB control and play with pump speeds.

For what it's worth... the pump closest to the XT6 in the Aquabus daisy chain is the one which correctly reports speed and doesn't drop connection. If the problem persists, I'll swap the order of the Aquabus connections.

Thanks for your help InfoSeeker. I arrived home today to try that. No luck. Same issue and the pump when visible is still not reporting speed/ power/ voltage etc.