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Servicing Boards and Components 161
▼ Remove the Power Distribution Board
1. Note the chassis serial number and part number.
The chassis serial number and server part number are printed on a label affixed to
the side of the chassis.
2. Remove the motherboard assembly.
See “Remove the Motherboard Assembly” on page 118.
3. (SPARC Enterprise T5120 server) Remove all power supplies.
a. Grasp the power supply handle and press the release latch. See the following
figure.
b. Slide the power supply out of the system.
FIGURE: Removing a Power Supply From a SPARC Enterprise T5120 Server
4. Disconnect the top cover interlock cable from the power distribution board.
5. (SPARC Enterprise T5220 server) Disconnect the ribbon cable between the
power distribution board and the power supply backplane. See Panel 1 in the
following figure.