Chapter 4 Servicing Motherboard Components 4-23
▼ To Remove the Motherboard Assembly
You need a thermal grease kit to replace the processors. You must remove a heat sink
to replace the motherboard, to access screws.
1. Prepare the server for service.
a. Power off the server.
See Section 2.4, “Powering Off the Server” on page 2-3.
b. Disconnect the power cord (or cords) from the power supply (or supplies).
See Section 2.4, “Powering Off the Server” on page 2-3.
c. Remove the server from the rack.
See Section 2.6, “Removing a Server From the Rack” on page 2-6.
d. Extend the server into the maintenance position.
See Section 2.5, “Extending the Server to the Maintenance Position” on
page 2-5.
e. Attach an antistatic wrist strap.
See Section 2.7, “Performing Electrostatic Discharge and Antistatic Prevention
Measures” on page 2-8.
f. Remove the top cover.
See Section 2.8, “Removing the Top Cover” on page 2-10.
2. Remove the air baffle.
See “To Remove the Air Baffle” on page 4-12.
3. Remove the PCIe cards and risers.
See “To Remove a PCIe Riser” on page 4-14. Make note of the location of
expansion cards in the PCIe risers.
4. Disconnect the power distribution board ribbon cable.
5. If you are replacing the motherboard, remove the FB-DIMMs.
Make note of the memory configuration so that you can install the FB-DIMMs in
the replacement motherboard.
6. Disconnect the drive data cables.
Caution – The drive data cables are delicate. Ensure they are safely out of the way
when servicing the motherboard.
7. Remove the plastic air flow baffle from between the fans and the motherboard.
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