Xerox 4540 Service Manual - Page 188

4. Remove the power supplies. See "To Remove a Power Supply (CRU)" on page 3-43. 5. Remove the fan modules. See "To Replace a Fan Module (CRU)" on page 3-25. 6. Label the drives with adhesive notes (or another method) so that you will know where to reinstall the drives at the end of this procedure. Note - When you remove the drives from their bays, you must return each drive to the equivalent bay in the new chassis. Use an adhesive note or another method to temporarily label the drives before you remove them. 7. Remove all drives from the drive bays. See "To Replace a Hard Drive (CRU)" on page 3-31. 8. Remove old chassis from the rack. See "Removing the Server From the Rack" on page 3-11 9. Install the new chassis into the rack. See the Sun Fire X4540 Installation Guide. 10. Reinstall all drives to the new chassis. 11. Reinstall the power supplies into the new chassis. 12. Reinstall the fan modules into the new chassis. 13. Reinstall the system controller into the new chassis. 14. Reinstall the cable management arm. 3.9.6 Replacing the System Controller (FRU) This section describes how to remove and replace the system controller, which includes an I/O controller board and the CPU board. The server does not have a motherboard as a component; however, the I/O controller board and the CPU board together serve the function of a motherboard. A replacement system controller does not include the CPU, memory (DIMMs), GRASP board (X4500) or Service Processor (X4540), or PCI cards. If these components are good, you must remove them from the old system controller and install them on the replacement system controller. 3-68 Sun Fire X4500/X4540 Server Service Manual • May 2010