I recall another post about a blown up Quadro (might have been an Octo), and I think, but am not 100% sure, that that component is a protection fuse. If it is, if you are able to solder, you could just bypass it by soldering a short piece of wire across the solder pads for it. If you have a VTVM meter, measure across that device and see if it measures open. Try the meter probes both ways while it's set to ohms, then again in Diode mode (if the meter has that feature). Before you trust my less than perfect memory, I would try to get confirmation from Aquacomputer that the component is really a fuse. If it is, and it's blown, you can fix it by bypassing it. Good luck!

So etwas erfragst du am Besten per Mail an den Support. Aber habe ein paar Tage Geduld, auch AC hat Weihnachten und Silvester.

Das Bauteil ist ein Ferrit der durch den zu hohen Strom abgebrannt ist. Wir können bei solch beschädigten Baugruppen nicht empfehlen etwas zu brücken, da es zu Bränden in Folge der Beschädigung anderer Bauteile gekommen sein kann.
Der Ferrit ist ein Filter für die Spannung und nicht unbedingt erforderlich, der Strom muss aber natürlich durch diesen Pfad.

I was wrong - it's a ferrite bead, not a fuse, but in this case it may have acted as a fuse. If this ferrite bead broke down (melted) and opened, stopping the flow of current, then everything past it might still be OK. While I understand completely that Aquacomputer cannot recommend doing this, what have you got to lose? You can solder a short piece of wire across the terminals then apply power to the Quadro. Don't connect any fans or USB or LEDs. If it smokes, then OK it's dead. If it seems ok, try connecting a fan. If that seems OK, try connecting the USB and see if it shows up in Aquasuite. I would have the USB plug into a hub instead of straight into the mobo. The worst that could happen is you damage the Quadro further, and maybe but not likely, a test fan, or the USB hub. My guess is it will either work or just sit there dead. I really doubt anything will catch on fire or be damaged.

The alternative is to say OK bad luck and lesson learned. When in doubt about a custom cable, verify it with a meter before plugging things in. Good luck and If you fix it, let us know!