v The ServeRAID SAS controller (see “Removing the ServeRAID SAScontroller” on page 102)Important: Note which DIMMs are in which connectors, before you remove theDIMMs. You must install them in the same configuration on the replacementsystem board.5. Remove all DIMMs, and place them on a static-protective surface forreinstallation (see “Removing a memory module (DIMM)” on page 114).6. Disconnect all cables from the system board.7. Slide the power supplies out of the bays slightly or remove them entirely (see“Removing a hot-swap power supply” on page 118).8. Slide the power backplane toward the right side of the server (see “Removingthe power backplane” on page 126).Attention: In the following step, do not allow the thermal grease to come incontact with anything, and keep each heat sink paired with its microprocessorfor reinstallation. Contact with any surface can compromise the thermal greaseand the microprocessor socket; a mismatch between the microprocessor andits original heat sink can require the installation of a new heat sink instead.9. Remove the VRM and each microprocessor heat sink and microprocessor;then, place them on a static-protective surface for reinstallation (see“Removing a microprocessor” on page 134).10. Slide the shuttle release latch toward the left side of the server, and push theshuttle toward the rear of the server approximately 12.7 mm (0.5 inch).11. Lift the shuttle out of the server.12. If you are instructed to return the shuttle assembly, follow all packaginginstructions, and use any packaging materials for shipping that are supplied toyou.Installing the system board and shuttleNotes:1. When you reassemble the components in the server, be sure to route all cablescarefully so that they are not exposed to excessive pressure.2. When you replace the system board, you must either update the server with thelatest firmware or restore the pre-existing firmware that the customer provideson a diskette or CD image.To reinstall the system board and shuttle, complete the following steps.Chapter 4. Removing and replacing server components 141
