Jumper J7 On The 80-Pin Sca Pcb; Figure 3-5 J7 Jumper Location On The 80-Pin Sca Pcb - Maxtor ATLAS 10K IV User Manual

Installation
3.4.4

Jumper J7 on the 80-Pin SCA PCB

When the J7 SE jumper is installed, it forces single-ended SCSI operation, and
disables LVD mode and auto switch capabilities. When the jumper is not installed
it allows auto switch to single-ended SCSI or LVD SCSI operation.
Figure 3-5
Note:
3-14 Maxtor Atlas 10K IV
J7 Jumper Location on the 80-Pin SCA PCB
Force Single Ended Jumper needs to be across 2 lower pins in
the magnified 4-pin diagram.