Dell OptiPlex 960 (Late 2008) - Manual (Page 113)

c. If the primary 2.5-inch hard drive was removed, and will be replaced by the secondary hard drive installed on the caddy, remove the secondary
drive and install it on the mount it on the flat side of the 2.5-inch hard drive caddy.
d. If the primary 2.5-inch hard drive was removed and no secondary hard drive was installed, install a primary hard drive. Go to Replacing a Hard
Drive and skip the rest of this procedure.
e. Install the 2.5-inch hard drive caddy into the shroud by slightly pulling out the release tabs and aligning the pins inside the shroud with the holes
on the sides of the 2.5-inch hard drive caddy.
f. Install the hard drive and shroud assembly in the chassis (see Replacing the Hard Drive and Shroud Assembly ).
Replacing a Hard Drive
1. Unpack the replacement hard drive, and prepare it for installation. Check the documentation provided for the drive to verify that it is configured for your
computer.
2. If you are replacing a 3.5-inch drive:
a. Insert the new hard drive into the shroud by pulling out the release tabs slightly and aligning the pins inside the shroud with the screw holes on
the sides of the hard drive. The side of the hard drive with the label plate must oriented away from the shroud, and connector end of the hard
drive must be toward the shroud securing tabs.
1 2.5-inch hard drive mounted as the primary
drive
2 2.5-inch hard drive
caddy
1 2.5-inch hard drive mounted as the secondary
drive
2 2.5-inch hard drive
caddy
1 2.5" hard drive with caddy 2 hard drive shroud
3 pins (2 on each side) 4 release tabs (2)
NOTICE: To avoid damage to the drive, do not set it on a hard surface. Instead, set the drive on a surface, such as a foam pad, that will
sufficiently cushion it.