Sun Microsystems Sun Fire X4140, Руководство по обслуживанию

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Chapter 5 Servicing Infrastructure Boards and Components 5-5
5.2.1 Removing a Fan Power Board
1. Prepare the server for service.
a. Power off the server.
See Section 2.4, “Powering Off the Server” on page 2-4 .
b. Disconnect the power cord (or cords) from the power supply (or supplies).
See Section 2.4, “Powering Off the Server” on page 2-4 .
c. Slide the server out of the rack.
See Section 2.5, “Extending the Server to the Maintenance Position” on
page 2-5 .
Note – If you are removing the fan power boards to access the paddle card or drive
cage, you must remove the server from the rack. See Section 2.6, “Removing a Server
From the Rack” on page 2-7 .
d. Attach an antistatic wrist strap.
See Section 2.7, “Performing Electrostatic Discharge and Antistatic Prevention
Measures” on page 2-9 .
e. Remove the top cover.
See Section 2.8, “Removing the Top Cover” on page 2-11 .
2. Remove the fan modules.
Note –
If you are replacing a defective fan power board, remove only the fan
modules that are necessary to remove the defective fan power board.
See Section 3.3.4, “Removing a Fan Module” on page 3-11 .
3. Remove the Phillips screw that secures the fan power board to the chassis
(
FIGURE 5-3
).
4. Slide the fan power board to the left to disengage it from the paddle card.
5. Remove the fan power board from the system and place it on an antistatic mat.