I don't know what kind of boards require the removal of termination from them under ANY circumstances. I've installed scsi systems since the middle '80's and never seen that kind of instruction. I can't even imagine why they would suggest that.
Do the board manufactures here reccomend that?
Internal drives have to be terminated, external drives have to be terminated - as long as they are the last one on the chain (there are times when this doesn't work). The board terminates the first drive. It is not removable.
Drives may be self-terminatable, or not. An internal drive cable must be terminated at the LAST connector, whether or not a drive leaves one or more connectors between itself and the last one.
Scanners may or may not pass scsi power to later devices in the chain. Be careful with that one! Put a scanner last, just in case. External Zip drives come with a special cable, you may have trouble with it if you don't use that cable. Zip's should be the FIRST device in an external chain, if possible.
Scsi I drives get no benefit from active termination. Scsi II and III drives can benefit. Drives with scsi 160 or higher speeds need special cables and MUST have active termination, preferably digital termination.
