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Servicing Field-Replaceable Units 139
Servicing the Motherboard
Note – If you are replacing faulty motherboard, you must set diag_mode to normal
or off before performing this procedure.
This topic includes the following:
■ “Remove the Motherboard” on page 139
■ “Install the Motherboard” on page 142
■ “Motherboard Fastener Locations” on page 143
Related Information
■ “POST Parameters” on page 30
■ “Servicing CMP/Memory Modules” on page 102
■ “Servicing PCIe Cards” on page 96
■ “Servicing the Service Processor” on page 124
■ “Servicing the Fan Tray Carriage” on page 133
■ “Motherboard Fastener Locations” on page 143
▼ Remove the Motherboard
Before you begin, complete these tasks:
■ Read the section, “Safety Information” on page 63.
■ Power off the server, using one of the methods described in the section, “Powering
Off the System” on page 67.
■ “Disconnect Power Cords From the Server” on page 68
■ “Remove the Server From the Rack” on page 71
■ “Perform Electrostatic Discharge – Antistatic Prevention Measures” on page 73
■ “Remove the Top Cover” on page 73
■ “Remove a PCIe Card” on page 96
Note – You must remove all PCIe cards. Note the location of all PCIe cards so you
can install them in the correct slots during reassembly.