Service manual

GS80 Component Removal and Replacement 6-9
Module Removal
1. 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
2.
2. 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.
3. If the FRU is in a single drawer or top drawer in a dual-drawer system, follow
the procedure in Section 6.1.1 to gain access to the FRU. Put the PSM
switch in the Service position. If the FRU is in the bottom drawer in a
dual-drawer system, follow the procedure in Section 6.1.2 to gain access to the
FRU.
4. Using both hands, one on each module lever, place your index finger on the
catch and thumb on the edge of the lever just below/above the arrow. First
squeeze to release the lever and then pull both levers away from the module
to release it from the QBB backplane.
5. Remove the module.
Module Replacement
CAUTION: Damage may result if the levers are closed when the module is not
properly seated. See Figure 6–4.
1. Place the module on the module guides and push it into the system box.
2. Be sure the levers properly seat with the system box edge by pressing the
module firmly into place.
3. Once the levers are properly seated, press them toward the module edge until
the catches snap.
4. Be sure to return the OCP switch to its original position.
Verification
Power on the system. Execute the SRM set_sys_serial_num command.