Service manual

GS160/320 Component Removal and Replacement 4-29
Module Removal
1. If the system is not partitioned, shut down the operating system and 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, they must be shut down and the hard partition
must be powered off from the console controlling the partition.
3. Access the particular QBB. See Section 4.5, Figure 4–5.
4. Identify the target PSM. See Section 4.4.
5. 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. See Figure 4–7.
6. Remove the module.
Module Replacement
CAUTION: Damage may result if the levers are closed when the module is not
properly seated. Follow the procedure outlined in Section 4.5.1.
1. Reverse the steps outlined in the removal procedure. When placing the
module into the system box, refer to Figure 4–6.
2. If the spare PSM firmware is out of date, choose the appropriate method to
update it. See Appendix D.
3. Be sure to return the OCP switch to its original position.
Verification
Power on the QBB. Execute the SRM set sys_serial_num command.