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Servicing Boards and Components 167
Caution – When performing the following steps, use special care to enter the correct
numbers. Once the power distribution board has been programmed with a chassis
serial number or server part number, the number cannot be changed.
Related Information
■ “Remove the Power Distribution Board” on page 161
Servicing Power Supply Backplanes
(SPARC Enterprise T5220 Servers)
The following topics explain how to remove and install power supply backplanes in
SPARC Enterprise T5220 servers. Power supply backplanes are not used in SPARC
Enterprise T5120 servers.
■ “Power Supply Backplane Overview” on page 168
Related Information
■ .“Servicing Power Distribution Boards” on page 160
sc> setsc sc_servicemode true
Warning: misuse of this mode may invalidate your warranty.
sc> setcsn -c chassis_serial_number
Are you sure you want to permanently set the Chassis Serial Number
to chassis_serial_number [y/n]? y
setcsn: Chassis serial number recorded.
sc> setcpn -p chassis_part_number
Are you sure you want to permanently set the Chassis Part Number
to chassis_part_number [y/n]? y
setcpn: Chassis part number recorded.
sc> showplatform
SPARC-Enterprise-T5120
Chassis Serial Number: chassis-serial-number
Domain Status
------ ------
SO Running
sc> setsc sc_servicemode false