Unable to access board and cart test/setup

Repaired 6 slot board, UNI BIOS 2.1, and D-Lite Supergun.

Not sure what's going on here...

1st thing I noticed was that the games don't select in the order of the slots 1 through 6, it goes from 1 to 4 for example.

The big problem is, I'm sure I'm supposed to be able to access the system and cart setup by pressing a button on the D-Lite Supergun, but none work for that.

I can get into the Unio Bios game cheats once the board and carts are booted, but don't see a menu option for the system setup/test.

Is there a Dip Switch I can use to get into the system test/setup?

Could this be caused by boot leg carts?

HELP!!!

The supergun has worked with other boards in the past.
The supergun has an extra powerful power supply for use with 6 slots.

Either the SG has crapped out, or the board is weird.

Hard for me to test as I sold my extra boards.
I only have another six slot working perfect in a cab,
and this repaired board with the SG.

I used dip switch 1 to get into the settings.

I found the dip switch settings on Hard MVS. Stangely the 6 slot manual does not have the settings, but the 4 slot one does.