Well I've run through more hardware tests. Second fan lights had stopped working not long after I made this thread. Cant test nor tell if its the fans LEDS or the RGB hub, reset firmware made sure pro was up to date, unplugged both hub and pro from PSU to make sure that was all clean and the result was...
....this. The rear fan (bottom of pic) is now stuck on this orange light, and the top fan which had no lights has two red ones. They now do not at all respond to iCue, this is their permanent state. The LEDs do not do anything regardless of what I make the settings both hardware or profile based, The only thing I can do with the lights is turn them off by unplugging them from the RGB hub.
Soooooo yeah its hardware, but I am beyond clueless as to whats happened to cause this. A surge? But my LED strips are fine, and I can't see the RGB hub surging them even if it is connected via its own power- because why would that happen? I have checked that I've not damaged pins or connectors, the cables are in cable ties but they're not tight and the wires arent being fed through anything that would damage them.
So I have to replace the fans, and possibly the RGB hub... and just hope that it doesnt happen again?? Is there a way to check if the PSU has .. surged? I dont know, I've got a 550W, 4 internal drives, the pro, the hub, mobo, graphics card and extra USB card. I dont feel like its taken over capacity, but while I was testing, two drives were unplugged anyway so it dont think its lack of power.
I'm not entirely sure how to test any PSU things or what to look for.
thanks for suggestions