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Servicing Motherboard Components 85
1. Extend the server to the maintenance position.
See “Extend the Server to the Maintenance Position” on page 63.
2. Remove power from the server.
See “Disconnect Power Cords From the Server” on page 62.
3. Remove the top cover.
See “Remove the Top Cover” on page 67.
4. For SPARC Enterprise T5140 servers, disconnect and stow the hard drive data
cable:
a. Unplug the hard drive data cable from J6401 on the motherboard.
b. Remove the hard drive data cable from its seat on the CMP air duct.
c. Place the hard drive cable end out of the way of the air duct.
5. Rotate the air duct up and toward the front of the system.
6. Press the Fault Locator button on the motherboard to identify the FB-DIMMs
that need to be replaced.
Tip – Make a note of the faulty FB-DIMM location.
Note – For memory configuration information, see “FB-DIMM Configuration
Guidelines for SPARC Enterprise T5140 Servers” on page 94 or “FB-DIMM
Configuration Guidelines for SPARC Enterprise T5240 Servers” on page 98.
7. Push down on the ejector tabs on each side of the FB-DIMM until the
FB-DIMM is released.
Caution – FB-DIMMs and heat sinks on the motherboard may be hot.