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Chapter 5 Replacing Field-Replaceable Units 5-25
5.7 Replacing the Motherboard and Chassis
5.7.1 Removing the Motherboard and Chassis
The motherboard and chassis are replaced as a unit. Therefore, you must remove all
FRUs and associated cables from your chassis, and install them in the new chassis.
1. Perform the procedures described in Chapter 4.
2. Remove the PCI-Express card.
See Section 5.1, “Replacing the Optional PCI-Express Card” on page 5-2.
3. Remove the fan tray assembly and cable.
See Section 5.2, “Replacing the Fan Tray Assembly” on page 5-4.
4. Remove the power supply and cable.
See Section 5.3, “Replacing the Power Supply” on page 5-5.
5. Remove the hard drive and cable.
See Section 5.5, “Replacing a Hard Drive” on page 5-12.
6. Remove all DIMMs from the motherboard assembly.
See Section 5.6, “Replacing DIMMs” on page 5-19.
7. Remove the socketed system configuration SEEPROM from the motherboard and
place it on an antistatic mat.
The system configuration SEEPROM contains the persistent storage for the host ID
and Ethernet MAC addresses of the system, as well as the ALOM configuration
including the IP addresses and ALOM user accounts, if configured. This information
will be lost unless the system configuration SEEPROM is removed and installed in
the replacement motherboard. The PROM does not hold the fault data, and this data
is no longer accessible once the motherboard and chassis assembly is replaced.
The location of this SEEPROM is shown in Appendix A.
5.7.2 Installing the Motherboard and Chassis
1. Replace the PCI-Express card.
See Section 5.1, “Replacing the Optional PCI-Express Card” on page 5-2.