Problem with 8-slot cRIO

Basically, the “enable light” (I don’t know its official name) on the digital side car won’t turn on when plugged into either of the team’s old cRIOs.

Both cRIOs have the newest image, and everything works when the new cRIO II is plugged in.

Any help would be greatly appreciated! Thanks!

Digital Module is in slot 2 on all 3 cRIOs?

Slot 2 on the new one. Slot 4 on the old one.

8-slot cRIOs also use the new module ordering:
1- analog
2- digital
3- solenoid
4 - blank
5 - analog 2
6 - digital 2
7 - solenoid 2
8 - blank

If you open up the new cRIO imaging tool while connected, it has a diagram showing if the modules are in the right spot.

That solved the problem.

Thank you so much for the help!