Sneaker is right about the external connector. Leave it set for "Auto", then it'll terminate if there's nothing outside, or (it will) leave termination OFF if you connect an external cable.
Don't forget that you have to enable termination on the drive at the end of the internal cable.
There is only auto termination on the SCSI module itself, nothing to be set.
BTW, did you know that there is a 2-pin connector on the board just near the two 50-pin connectors? You can connect an LED to that and have a "SCSI Bus" activity light.
tony
