IBM 9080-M9S Manual page 473

UPIC cable locations are P1-C1-T1 and P1-C2-T1.
a. Remove the white plastic lock (A) from the plug housing.
Figure 404. Removing the UPIC cable lock
b. Push down on the blue cable latch (B) and pull out the UPIC cable from the system control unit.
Figure 405. Removing the UPIC cable from the system control unit
PCIe adapters 467