Seagate ST39173N/W/WD/LW/WC/LC manual Additional jumper options for W, WD, and LW drives

50 Barracuda 9LP Installation Guide, Rev. E

W/WD/LW drives

Other applicable jumper options

Other option jumpers are available as illustrated in Figures 15 and 16.

Drive with
HDA up, PCB
down, viewed						Pin 1
from front	HDA
									J6
	L	R
Reserved E		E A	3	A	2	A	1	A	0
	D	S
Reserved
Remote	11
LED	12								CATH
Shipped with cover installed.
Do not remove.
Do not install jumpers
on these four positions.
Drive Front			J6						J6
									Jumper Type
									(enlarged to
									show detail)
								Pin 1
									End
					J2
									Pin 1
DC Power
Connector
		J1
SCSI I/O		J2 Jumper Type
Connector
		(enlarged to

show detail)

	J2		Pin 1
		[1]
Reserved
Delay Motor Start option
(valid only if the Enable
Motor Start jumper is
not connected)
Disable the Delay Motor			(default)
Start option.
Motor start delay equal
to the SCSI ID multiplied
by 12 seconds. For
example, if the SCSI
ID = 2, the drive starts
in 24 seconds.
Motor Start option
Disable motor start
(default). The drive			(default)
starts according to the
Delay Motor Start option.
Enable motor start. The
drive waits for the Start
Unit command from the
host before starting the
spindle motor.
Write Protect option
Write protect = Off			(default)
(enables writing.
Write protect = On
(disables writing).
Parity Check option
Enable parity check of			(default)
SCSI bus.
Disable parity check.

[1] See Figure 16 for this jumper position option for “LW” drives.

Figure 15. Additional jumper options for “W,” “WD,” and “LW” drives