IBM Power System S822LC Manual page 182

Figure 190. Removing dust and debris from the system processor socket
b. Lower the tool and system processor module onto the socket. Align the beveled corner (A) of the
tool with the beveled corner on the socket. Ensure that the two guide pins (C) are inserted into
the alignment holes (B) on each side of the tool. Use care to lower the tool evenly without tilting
the tool. See Figure 191 on page 167.
Note: Do not attempt to slide the tool and the system processor module in any direction while
the system processor module is touching the socket. If the tool and the system processor module
are not aligned with the guide pins, lift the tool and the system processor module and reposition
them.
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Power Systems: Servicing the IBM Power System S822LC (8335-GTB)