Rock 4 SE Connector description

#1

I have a number of Rock 4 SE devices, all run fine in a standard configuration.
However there seems to be no documentation on what each of the connectors on the board are doing. There is a 4-pin header for something, there is a GPIO output (which I have the pinout diagram for) a Molex connector on the reverse and M2 connectors.

I am trying to understand what the external power options are for the board, as well as the appropriate header to use a 3 pin PWM fan with the board.

Please could you help me with documentation on this. I saw that you are “rewriting the docs” as of 19 days ago, but the board is unusable for my use case without this documentation.

#2

@jack mentioned about upcoming (and already delayed) 6.x kernel for RK3399. I guess that most of docs would have to be updated for this as well as for newer debian. Few interfaces won’t change for sure, but others (and supporting software) will need complete rewrite.

Q1 ends in about 1.5month for now plus some extra time to get all stuff organised.