IBM Power Systems 9009-41A Manual page 88

Figure 73. Removing the socket dust covers
c) If your system has a second system processor, repeat steps "4.a" on page 73 through "4.b" on
page 73 to remove the other socket dust cover.
5. Place the original system backplane on the packaging for the replacement system backplane FRU
and place it near the system with the replacement system backplane.
6. Install the system processor modules from the original system backplane in the new system
backplane:
a) If dust or debris is present on the system processor socket on the new system backplane, use the
supplied air pump to clean the socket before you install the new system processor. Blow small
bursts of air from the center toward the sides of the socket, as shown the following image.
74 Power Systems: System backplane