IBM x3550 Problem Determination And Service Manual page 99

Mounting channel
1. Read the safety information that begins on page vii and "Installation guidelines"
on page 39.
2. Turn off the server and peripheral devices and disconnect all power cords.
3. Remove the cover (see "Removing the cover" on page 42).
4. Pull the hard disk drives out of the server slightly to disengage them from the
backplane or backplate.
5. Disconnect the backplane or backplate cables.
v If the server is a hot-swap model, disconnect the two cables from the
backplane.
v If the server is a simple-swap model, disconnect the two blue signal cables
from the system board, and disconnect the power cable from the power
supply backplane card.
6. Press the locking tab and lift the backplane or backplate out of the server
slightly; then, disconnect the power cable and remove the backplane or
backplate.
Removing the 2.5-inch SAS backplane
To remove the 2.5-inch SAS backplane, complete the following steps.
1. Read the safety information that begins on page vii and "Installation guidelines"
on page 39.
2. Turn off the server and peripheral devices and disconnect all power cords.
3. Remove the cover (see "Removing the cover" on page 42).
4. Pull the hard disk drives out of the server slightly to disengage them from the
backplane.
5. Disconnect the power cable from the power backplane.
6. Disconnect the signal cable from the system board.
7. Remove the disk drive cage (see "Removing a 2.5-inch disk drive cage
assembly" on page 77).
Locking tab
Mounting channel
Chapter 4. Removing and replacing server components
81