IBM 9080-M9S Manual page 457

Figure 388. Removing the UPIC cable from the system control unit
2. If applicable, open the rack door at the rear of the system.
3. At the rear of the system, put the cable management bracket in the service position as shown in the
following figure.
a) Pull out the quarter-turn fasteners (B) and turn them to disengage them while you lift the cable
management bracket (A) to its raised position.
b) Turn the quarter-turn fasteners (B) to engage and lock the bracket into position.
PCIe adapters 451