Remove the Motherboard Assembly

1. Back up OpenBoot PROM variables with one of the following procedures:

   • For ILOM 3.0 Web Interface: Back up per Chapter 10, “Backing Up and Restoring ILOM Configuration,” from the Oracle Integrated Lights Out Manager (ILOM) 3.0 Web Interface Procedure Guide (820-0052) available at: http://docs.oracle.com/cd/E19860-01/index.html. Use a passphrase to backup the OpenBoot PROM variables.

   • For ILOM 3.0 CLI: Back up per Chapter 10, “Backing Up and Restoring ILOM Configuration,” from the Oracle Integrated Lights Out Manager (ILOM) 3.0 CLI Procedure Guide (821-1611) available at: http://docs.oracle.com/cd/E19860-01/index.html. Use a passphrase to backup the OpenBoot PROM variables.

   • For ILOM 2.0: The ILOM Back up/Restore feature is absent. Record output from the OpenBoot PROM printenv command or the Oracle Solaris eeprom command for use after motherboard replacement.

2. Perform the following to prepare the server for motherboard assembly removal:
   • Power Off the Server
   • Disconnect Cables From the Server
   • Remove the Server From the Rack
   • Perform Antistatic Measures
   • Remove the Top Cover
   • Remove the PCI Mezzanine Assembly
   • Remove the Memory Mezzanine Assembly
   • Remove the System Fan Assembly (Fan Tray 0)
   • Remove the SCC Module
3. Disconnect the optical media ribbon cable and the PDB cable connected to the motherboard in between the FB-DIMM slots (Disconnecting the Cables Connected to the Motherboard).

   Figure 4-24  Disconnecting the Cables Connected to the Motherboard

   
   
4. Loosen the screws that secure the motherboard assembly to the chassis (Removing the Motherboard Screws).

   Figure 4-25  Removing the Motherboard Screws

   
   
5. Lift slightly and slide the motherboard 1 inch (25 mm) toward the front of the server (Lifting the Motherboard Out of the Chassis).
6. Tilt the end of the motherboard (closest to the front of the server) upward (Lifting the Motherboard Out of the Chassis).
7. Lift the motherboard out of the server chassis and place it on an antistatic mat (Lifting the Motherboard Out of the Chassis).

   Figure 4-26  Lifting the Motherboard Out of the Chassis