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3-66 Sun Fire X4100 and Sun Fire X4200 Servers Service Manual • June 2006
3.4.16 Replacing the Power Distribution Board
Follow these steps to remove and replace the power distribution board.
Note – This component is a FRU and should be replaced only by qualified service
technicians. Contact your Sun Service representative for assistance.
TABLE 3-17 lists the qualified part numbers for this component. These part numbers
are subject to change over time. For the most up-to-date list of replaceable
components, product updates, and downloads, see the following URL:
http://www.sun.com/servers/entry/x4100/downloads.jsp
1. Power off the server as described in Section 3.2.1, “Powering Off the Server” on
page 3-2.
2. If the server is in a rack, slide it far enough from the rack so that you can remove
the main cover and front cover. If you cannot safely view and access the
component, remove the server from the rack.
3. Remove the main cover as described in Section 3.2.2, “Removing the Main Cover”
on page 3-3.
4. Remove the front bezel as described in Section 3.2.3, “Removing the Front Bezel”
on page 3-4.
Note – Always unfasten the bezel’s securing screw before removing the bezel.
5. Remove the front cover as described in Section 3.2.4, “Removing the Front Cover”
on page 3-5.
6. Remove both power supplies:
a. Grasp the power supply handle and push the thumb latch toward the center of
the power supply. See
FIGURE 3-62.
b. While continuing to push on the latch, use the handle to remove the power
supply from the chassis.
TABLE 3-17 Sun Fire X4100 Supported Power Distribution Board Part Numbers
Component Part Number
Power distribution board 501-6920