| 5 If the 7133 has a Remote Power On Control feature, ensure that no using system| power-control cables are present at the MAIN and AUX connectors 4.Back view| 6 Ensure that the screw 5 is tight.| 7 Follow your local procedures and check the grounding of the 7133. Any test| equipment must be connected to the frame of the 7133.| If the grounding is not correct, unplug the power cables from all the| fan-and-power-supply assemblies in the 7133, and continue with step 8 on| page 1-66.Chapter 1. Reference Information 1-65

IBM 7133 Series Service Manual