IBM Power Systems 7063-CR1 Service Manual page 48

Figure 30. Processor socket screws on the bottom of the chassis
9. Remove the drive signal and drive power cables from the system backplane. For instructions, see
"Removing the disk drive backplane from the 7063-CR1" on page 8.
10. Remove the operator panel cable from the system backplane as shown in Figure 31.
Figure 31. Removing the operator panel cable
32
Power Systems: Servicing the 7063-CR1 Hardware Management Console system