I have currently become part owner of a company I used to work for. About a year ago their warehouse caught on fire and some kid who had no idea what he was doing tried to repair some x-spots (i finally got the rest of everything else he screwed up working). But there is one x-spot that thinks its an xtreme but itsnt. For the life of me I cannot remember how to tell the x-spot its an xtreme or not an xtreme.
It is the CPU board, if you are facing the fixture with the 3 phase card to the left and the CPU board to the right, you want to remove the screw on the Upper Right of the CPU board, Most Xspots have a small set screw in that hole to keep you from putting a screw in there, but Retrofits didn't always get the set screw.
Good question, I am not sure, The screw may just change the display, or if it may change the way the fans run. OR, it may try to run the lamp power supply at 850watts, when it is only supposed to run at 700.