Reading about the 2091 jumper settings (121426 S11/Amiga Hardware) made me get
out the screwdriver to have a look at my 2091, hard drive and floptical. I
wanted to make sure that parity checking was turned on for all of them.
The 2091 has a jumper for that (J5 option 2 off), my old Quantum has a jumper
labeled EP (enable parity) to turn on its parity checking, but my DMI / Insite
I325VM floptical drive doesn't have any obvious markings for parity checking.
There are 7 pairs of pins / jumpers labeled E1 to E7. Presumably the first 3
(E1 to E3) are for SCSI ID since they are plugged into the SCSI ID thumb
switch. E6 also has a jumper on it. Did any of you get any documentation
explaining what the jumpers do? I didn't :-(.
– Alex