> So, you are saying that there SHOULD be two screws going into the back
> of the case, and into standoffs directly behind the left side of the
> power PCB, that are attached to nothing

Please refer to my last email: "The heatsinks have internal female
threads. So there is no nut required at this position."

Consequently the standoffs are not attached to nothing but to the heatsinks
via the internal female
threads (which work like nuts) !

Dieter Doepfer