Epson 3865X Plus - Manual (Page 195)

Setting the Hard Disk Drive Jumpers
You need to check or change the hard disk drive jumper settings
if you are doing either of the following:
Installing one or two hard disk drives
Removing one hard disk drive and leaving another in your
system.
If you are removing your only hard disk drive, you do not need
to set any jumpers. See “Removing a Hard Disk From the
Vertical Position,” on page B-24, for instructions.
Before you install any hard disk drive in your computer, you
need to check or change the jumper settings on the drive(s).
The jumpers tell the computer whether you are using one hard
disk drive or two.
If you remove one hard disk drive and leave another in your
computer, you need to change the jumper settings on the
remaining drive to indicate that you now have only one hard
disk drive installed.
The following table lists the jumper settings for all the possible
hard disk drive configurations.
Drive configurations
Jumper One hard Two hard disk Two hard disk
positions disk drive drives: master drives: slave
HSP
- - -
C/D X X
-
DSP
-
X
-
ACT X X X
X = jumper installed
- = no jumper installed
B-4 Installing and Removing Disk Drives