Chapter 2 Servicing the Main Logic Board and Components 87
4. Slide the main logic board toward the back of the chassis.
Ensure that each connector on the main logic board slides through the
corresponding cutout in the chassis back panel.
5. Replace the three screws securing the main logic board to the chassis back panel.
6. Connect the following internal cables to the main logic board.
The connectors are keyed to connect in only one way.
Note – For information about cable connector locations, see “Main Logic Board
Connectors” on page 128.
a. Connect the main power cables at J3601.
b. Connect the power interlock switch cable at J3602
c. Connect the CPU power sense cable at J3603.
d. Connect the UltraSCSI data cable at J5002.
e. Connect the FC-AL data cable at J2901.
What Next
If you are keeping the old host ID, complete the following task:
■ “How to Replace the ID SEEPROM Module” on page 77
To reassemble the system, complete these tasks:
■ “How to Replace the Air Guide” on page 81
■ “How to Install a CPU Module” on page 69
■ “How to Install a Memory Module” on page 46
■ “How to Replace the RSC Card” on page 54
■ “How to Install a PCI Card” on page 61
■ “How to Replace the System Cover” on page 33
■ “How to Place the System Into the Rack” on page 24
When you are ready to restart the system, be sure to run OpenBoot Diagnostics tests
to verify that the system functions correctly with the parts you have just installed.
For additional information, see:
■ “About OpenBoot Diagnostics Tests” on page 166
If you changed the configuration of the system, perform a reconfiguration boot so
that your system is able to recognize any new parts. For additional information, see:
■ “How to Initiate a Reconfiguration Boot” on page 12
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