IBM System p Series Cabling Manual page 132

After you finish
__ Did you receive a cable hook with your rack shipment?
v No. Proceed to the next item.
v Yes. The cable hook can help manage the server cables in the back of the rack. To install the cable hook, slide
it into the slots located on the back of the rack as shown in the following figure:
__ Return to your initial server setup checklist and complete the next step.
Cabling your model 9111-520 server with a console
For a graphical representation of the slots and connectors that are referred to in this topic, see the back
views of the model.
Cabling a model 9111-520 and an ASMI console
Complete the following tasks to cable your server:
Before you begin
__ If you have hardware features that are not installed, install them now. See Installing features and replacing parts
for instructions.
Connecting the Advanced System Management Interface (ASMI)
__ If you plan to connect a PC (with a browser) to the server to access the ASMI, see Accessing the ASMI using a
Web browser for instructions.
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System i and System p: Cabling your server