Dell Inspiron 2100, Service Manual, Page: 26 / 73

System Overview 1-9
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If you install an optional SCSI controller card to control the CD-ROM drive
and any other SCSI device in the externally-accessible drive bays, you must
enable termination for the SCSI controller card and the SCSI device at the
end of the SCSI interface cable (preferably the CD-ROM drive). See the
documentation that came with your SCSI controller card for instructions.
Figure 1-5 shows an example of a SCSI termination jumper on a CD-ROM
drive.
NOTE: When you install or remove a termination jumper, do not move or
remove any other jumpers installed on the drives.
Figure 1-5. SCSI Termination Jumper Examples
example CD-ROM drive
termination jumper
example hard-disk drive (back view)
termination jumper
example hard-disk drive (bottom view)
termination jumper
jumpered unjumpered