Seagate HAWK 2 ST12400N Installation Manual page 36

34 Hawk 2 Family Installation Guide, Rev. C
• Mount to host system chassis using four 6-32 UNC
screws. Three mounting holes are in each side and
four in the bottom of the drive. See Figure 4. The
maximum length that the screws should extend into
the side chassis mounting holes is 0.150 inch (3.81
mm), and 0.20 inch (5.08 mm) into bottom holes,
measured from the outer surface of the chassis. The
minimum thread engagement for all mounting screws
is .12 inch (3.0 mm). Tighten the screws evenly to a
maximum torque of 8 in-lb. Do not over tighten or
force when screw does not seem to screw in easily
(threads not correctly engaged).
• Verify that all connections between the drive and the
host system are correctly installed. Most cables have
a contrasting color stripe indicating pin 1. Pin 1 on the
drive I/O connector and the DC power connector are
indicated in Figure 1. The "NC" drive 80 pin I/O
connector is keyed by virtue of its shape.
• Verify option select and drive ID select jumpers and
installation of terminator resistor packs where appli-
cable. See Sections 2 and 3.