Service manual

GS80 Component Removal and Replacement 6-19
Removal
1. If the operating system supports hot-swap I/O, enter the OS command that
puts the target local I/O module in the hot-swap state. See Section 4.3.1.
Skip to step 4.
2. If the system is not partitioned, shut down the operating system and issue the
SRM power off command.
Put the OCP switch in the Off position. Skip step
to step 4.
3. If the system is partitioned, from the console connected to the partition with
the target FRU, shut down the operating system and power it off using the
SRM power off command. Note, only hard partitions can be powered off. If
soft partitions are used, both partitions must be shut down and the hard
partition powered off.
4. Open the rear door.
5. Remove the I/O cables from the target transition module.
6. Loosen the two captive screws holding the transition module to the drawer.
7. Remove the module.
Replacement
From the spare I/O transition module, remove the two plastic protective caps
covering the connectors to the local I/O riser module. (Place them on the module
you are returning.)
Reverse the steps outlined in the removal procedure.
Be sure to leave the OCP switch in its original position.
Verification
Power on the system and verify that the I/O configuration includes resources
attached to the replaced local I/O riser. Execute the SRM set sys_serial_num
command.