IBM IC922 Servicing page 42

Figure 21. Retracting the retaining pin and removing the right cable holder
c) Lift the drive cable holder out of the system.
d) Remove the cables from the top of the power distribution board.
e) To remove the power distribution board, unlatch tab (A), unplug, and lift the power distribution
board from the system backplane as shown in the following figure.
28 Power Systems: Servicing the IBM Power System IC922 (9183-22X)