User manual

Chapter 3 Maintaining the Sun Fire X4100 Server 3-31
3.4.8 Replacing the Front I/O Board
Follow these steps to remove and replace the front I/O board.
Note – This component is a FRU and should be replaced only by qualified service
technicians. Contact your Sun Service representative for assistance.
TABLE 3-8 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. Disconnect any external cables from the front I/O board’s USB connectors.
3. 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.
4. Remove the main cover as described in Section 3.2.2, “Removing the Main Cover”
on page 3-3.
5. 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.
6. Remove the front cover as described in Section 3.2.4, “Removing the Front Cover”
on page 3-5.
7. Remove all six fan modules by lifting each fan module by its plastic strap to
disconnect it from its fan connector board.
8. Remove both fan connector boards:
a. Unfasten the single screw that secures each fan connector board to the chassis.
See
FIGURE 3-27.
TABLE 3-8 Sun Fire X4100 Supported Front I/O Board Part Numbers
Component Part Number
Front I/O board (for Sun Fire X4100) 501-6918