IBM Power System 9040-MR9 Manual page 44

Figure 29. Disconnecting the rear USB cable from the system backplane
b) Route the rear USB cable over the side of the system to prevent it from interfering with the
removal of the system backplane.
15. Remove the vital product data (VPD) card from location P1-C24.
a) Grasp the VPD card by the plastic housing. Refer to the following image.
b) Pull the VPD card out of its slot on the system backplane.
30 Power Systems: System backplane