IBM 9009-22A Manual page 40

Figure 24. Replacing the disk drive backplane
3. Carefully tighten each of the three captive thumbscrews (C) to secure the disk drive backplane to the
system's chassis, as shown in Figure 24 on page 26.
4. Using your labels, reconnect the signal cable (A) and the power cable (B) to the disk drive backplane
as shown in Figure 25 on page 27.
Note: If your system has a backup power module, wait to replace the power cable until directed to do
so in a later step.
Push the connectors in until the latch clicks.
26 Power Systems: Power Systems: Drive backplane