PCI-X board assemblyComplete the following steps to remove a PCI-X board assembly.ACDCHandleRetainerscrews1. Read the safety information that begins on page vii, and “Handlingstatic-sensitive devices” on page 114.2. Turn off the server and peripheral devices, and disconnect the power cordsand all external cables necessary to replace the device.3. Remove the top cover and bezel (see “Removing the cover and bezel” onpage 115).4. Remove the power supplies and power-structure assembly (see “Power-supplystructure” on page 135).5. Remove the I/O board (see “I/O board” on page 133).6. Remove all adapters and adapter dividers, and place the adapters on astatic-protective surface.Note: You might find it helpful to note where each adapter is installed beforeremoving the adapters.7. Disconnect the PCI-X switch card cable from the PCI-X board (see “PCI-Xswitch card assembly” on page 143).8. Disconnect the SAS backplane power cable from the PCI-X board (see “SASbackplane” on page 136).9. Remove all fans (see “Hot-swap fan” on page 118).10. Remove the memory cards (see “Removing and replacing a memory card” onpage 125).11. Lift the microprocessor-tray release latch, open the microprocessor-tray levers,and pull the microprocessor tray out of the server slightly (see “Removing andinstalling a microprocessor” on page 138).12. Remove the power backplane (see “Power backplane” on page 144).13. Loosen the blue retainer screws on the rear of the server.142 IBM System x3850 Type 8863, 7362: Problem Determination and Service Guide
