The Macintosh 630 family has termination very near the SCSI connector on the logic board so no internal device requires termination. When adding an internal SCSI device, make sure it is free of terminating resistors. When removing an internal device, no termination concerns apply.
The existing SCSI termination rules still apply for external devices; terminate the last device in the chain.
The following computers are in the Macintosh 630 family: Performa 630, Performa 635, Performa 636, Performa 637, Performa 638, LC 630, and Quadra 630.
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