5-28 Sun Fire X4150 Server Service Manual • November 2009
5.7.8 Removing a PDB Cable
To remove a Power Distribution Board ribbon cable.
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. Slide the server out of the rack.
See Section 2.5, “Extending the Server to the Maintenance Position” on
page 2-5.
d. Attach an antistatic wrist strap.
See Section 2.7, “Performing Electrostatic Discharge and Antistatic Prevention
Measures” on page 2-8.
e. Remove the top cover.
See Section 2.8, “Removing the Top Cover” on page 2-10.
2. Remove the PDB end of cable (
FIGURE 5-16).
a. Release the latches on either side and then pull the cable straight up.
b. Grasp each end of the connector on the motherboard, and then pull straight
up to disconnect from connector.
Caution – Do not to bend the pins on the unshrouded motherboard connector.
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