IBM System x3200 Problem Determination And Service Manual page 129

To remove the SAS/SATA hard disk drive backplane, complete the following steps.
Retaining
latch
SAS
backplane
1. Read the safety information that begins on page vii and "Installation guidelines"
on page 73.
2. Turn off the server and all attached devices; then, disconnect all power cords
and external cables.
3. Unlock and remove the side cover (see "Removing the side cover" on page
77).
4. Remove the lower bezel (see "Removing the lower bezel" on page 79).
5. Remove the hot-swap SAS/SATA hard disk drives installed in the hard disk
drive cage (see "Removing a hot-swap hard disk drive" on page 93).
6. Remove the front fan assembly from the hard disk drive cage (see "Removing
the front system fan assembly" on page 107).
7. Disconnect the power and signal cables from the hard disk drive backplane.
8. Press and hold the drive cage release tab; then, rotate the drive cage out of
the chassis until the retaining tab on top of the cage locks into place.
9. Remove the two screws that secure the SAS/SATA hard disk drive backplane
to the drive cage.
10. Tilt the top of the hard disk drive backplane away from the drive cage until it is
clear of the locating pins.
11. Lift the SAS/SATA hard disk drive backplane out of the lower lip on the drive
cage.
12. If you are instructed to return the SAS/SATA hard disk drive backplane, follow
all packaging instructions, and use any packaging materials for shipping that
are supplied to you.
Retaining tab
Drive cage
release tab
Locating pins
Chapter 4. Removing and replacing server components
111