Oracle X5-4 Service Manual page 252

Replace the Motherboard (FRU)
The screw is located at the left front corner of the motherboard behind FM3.
17. Ensure there are no cables left attached to the motherboard, and that there are
no cables draped inside of the chassis that might be in the way of removing the
motherboard.
Holding the metal memory riser card guide (over the CPU sockets) and the metal
18.
handle above the SP card slot, slide the motherboard toward the front of the
server. If extra force is required to break loose the fit around the motherboard
rear connectors and the chassis, use the rear handle (by the SP connector) and
not the memory riser guide, as it might bend.
The motherboard is mounted to a metal plate. The plate has eight keyed slots that align with
eight mushroom head standoffs mounted to the bottom of the chassis. The standoffs lock the
motherboard and plate assembly to the chassis. To unlock the assembly, you need to slide the
assembly toward the front of the server.
Once the motherboard has been slid forward as far as it will go, lift the front
19.
end of the motherboard while gently sliding it away from the back of the server,
ensuring that the Locator indicator light pipe extension piece slides out of its
hole at the back of the chassis.
252 Oracle Server X5-4 Service Manual • December 2015