So, I finally got my index, but it just won't fucking work, USB is giving me troubles, saying it 'usb controller resources exceeded' or some bullshit, so I googled that and all errors come from the fact that people tried using them on laptops, problem being I'm using a desktop computer, and I'm not using a hub either, and then I also unplugged ALL USB devices from my PC and the only ones left are mouse and keyboard (both using 2.0 ports tho) and yet the issue persists

I looked into valve/steam's official guide and they tell me to get into steamVR's options and then go to developer use the 'remove all steamvr usb devices' option, problem being, there's no such thing (anymore?)! 

I thought it was because of my old 770 (my new GPU won't be here until thursday) but this is giving me ANOTHER error (436) but it seems like even people with new GPUs are having this error as well

What am I supposed to do here?