system, it is important to again discharge yourself by touching an unpainted metal surface
for at least 5 seconds before you continue with the service process.
3. Remove the system backplane from the rear of the system.
a) Label and remove the two power cables.
For instructions, see “Disconnecting the power cords from a 7063-CR2 system” on page 100.
b) Label and remove the signal cables from the rear of the system.
c) Loosen the two screws (A) on the sides of the system backplane as shown in the following figure.
Figure 89. Removing the system backplane screws
d) Simultaneously rotate the two levers (A) on each side of the system backplane out and to the side
to unlock the system backplane from the system.
Figure 90. Unlatching the system backplane
e) Support the system backplane by the bottom as you slide it from the system.
Figure 91. Removing the system backplane
f) Place the system backplane on an ESD surface.
Note: You must remove and replace the system backplane at a flat angle. The ventilation holes in
the top cover can come into contact with the DIMMs in the system backplane if the insertion of the
backplane is at an angle or is rushed. As a result of possible contact, DIMMs can be scratched and
can leave residue on the top cover.
4. Open the packaging of the new system processor module and place the cover upside down next to
the tray, as shown in the following figure. The cover is used for the system processor module that you
want to replace.
Removing and replacing parts in the 7063-CR2 69
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