Servicing the Motherboard
The motherboard includes one or two CMP modules, memory control subsystems, and all SP
(Oracle ILOM) logic. The motherboard hosts a removable SCC module, which contains all
MAC addresses, host ID, and Oracle ILOM configuration data. The motherboard connects
directly to the PS backplane, which distributes main 12V power from the power supplies to the
rest of the server. The PS backplane is directly connected to the motherboard through a bus bar
and ribbon cable and supports a top cover safety interlock switch.
These topics describe how to service the motherboard.
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“Remove the Motherboard” on page 141
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“Install the Motherboard” on page 147
■
“Reactivate RAID Volumes” on page 153
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“Verify Motherboard Functionality” on page 155
Related Information
■
“Component Service Categories” on page 57
■
“Remove the Motherboard” on page 141
■
“Install the Motherboard” on page 147
■
“Verify Motherboard Functionality” on page 155
■
“Servicing the SP” on page 129
Remove the Motherboard
Caution - Ensure that all power is removed from the server before removing or installing
the motherboard assembly. You must disconnect the power cables from the server before
performing these procedures.
Caution - These procedures require that you handle components that are sensitive to ESD. This
sensitivity can cause the component to fail. To avoid damage, ensure that you follow antistatic
practices as described in “ESD Measures” on page 54.
Servicing the Motherboard 141
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