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144 SPARC Enterprise T5120 and T5220 Servers Service Manual • July 2009
2. Disconnect the power cables.
See “Disconnect Power Cords From the Server” on page 62.
3. Extend the server into the maintenance position.
See “Extend the Server to the Maintenance Position” on page 63.
Note – If you are removing the fan power boards to service the paddle card or hard
drive cage, you must remove the server from the rack. See the topic “Remove the
Server From the Rack” on page 64.
4. Attach an antistatic wrist strap.
5. Remove the top cover.
See “Remove the Top Cover” on page 67.
6. Remove the fan modules.
Note – If you are replacing a defective fan power board, remove only the fan
modules needed to access the fan power board.
See “Remove a Fan Module” on page 125.
7. Remove the Phillips screw that secures the fan power board to the chassis.
FIGURE: Removing the Fan Power Board (Illustrates removal from a SPARC Enterprise
T5120 server)
8. Slide the fan power board to the left to disengage it from the paddle card.
9. Remove the fan power board from the system and place it on an antistatic mat.