Oracle Sun Server X4-4, Service Manual

Page: 220 / 292

Replace the Motherboard (FRU)
220 Sun Server X4-4 Service Manual • October 2015
Before You Begin ■
For serviceability considerations, see “Component Serviceability” on page 66 .
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To complete this procedure, you need:
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Alcohol wipes
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Thermal compound
1.
Prepare the server for service. See “Prepare the Server for Cold
Service” on page 90 .
2.
Remove the SP card. See “Remove the SP Card (FRU)” on page 215 .
3.
Remove all PCIe cards from the server taking care to note their slot
assignments. See “Remove a PCIe Card” on page 148 .
The slot population on the replacement motherboard needs to match the population on the failed
board.
4.
If the server has two CPUs, carefully remove the air baffle, taking care not to
damage the fan board ribbon cable.
Lift the baffle slowly and maneuver its front edge away from the ribbon cable while removing.
Caution -
Component damage. Lifting the baffle straight up from the server can damage the fan
board ribbon cable. The front support foot for the air baffle is located under the cable.
5. Remove all memory riser cards. See “Remove a Memory Riser
Card” on page 131 .
6. Disconnect the fan board ribbon cable from the motherboard.
7. Remove the CPUs and heatsinks from the motherboard. See “Remove a
Heatsink and CPU (FRU)” on page 174
8. Loosen the green captive screw that secures the motherboard to the chassis.