User manual

Chapter 3 Maintaining the Sun Fire X4100 Server 3-51
3.4.13 Replacing the Motherboard
Follow these steps to remove and replace the motherboard.
Note – This component is a FRU and should be replaced only by qualified service
technicians. Contact your Sun Service representative for assistance.
TABLE 3-14 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, 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 all PCI cards:
a. Disconnect any external cables from the PCI cards.
b. Working from the rear of the chassis, pivot each card latch up to release the rear
of the PCI cards. See
FIGURE 3-45 for the latch location.
TABLE 3-14 Sun Fire X4100 Supported Motherboard Part Numbers
Component Part Number
Motherboard, Sun Fire X4100
(RoHS-compliant, replaces 501-7261 and 501-7644)
501-7513