Keling 4030 Driver Switches

[mprichard]

Anyone one know what switches 4 and 5 do on the KL-4030 Drivers?

[MarshaJ847]

Switches 1-4 connect to pins 1-4 of the processor chip... only 1-3 seem to be defined for setting the microstep values.
Switches 5-7 set the drive current
Switch 8 visually is not connected on the circuit board.

[mprichard]

Thanks. Obviously Switch 8 does nothing, if it is not connected. Any one know what switch 4 does? (my original post should have asked about dips 4 and 8, not 5.) I understand setting the stepping and current. But have never seen anything that says what the other 2 switches do.