Service manual

GS160/320 Component Removal and Replacement 4-25
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. Put the PSM(s)’ switch in the Service position. 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. Locate the target module. See Section 4.4. If the FRU is a power module, its yellow
Swap OK LED should be lit.
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 4–6.
6. Remove the module.
Module Replacement
CAUTION: Damage may result if the levers are closed when the module is not
properly seated. See Figure 4–6.
1. Place the module on the module guides matching the color on the module to the color
on the system box and push it by its plastic frame not its levers into the box.
2. Be sure the levers properly seat with the system box.
3. Once the levers activate and are properly seated, press them toward the frame until
the catches snap into place.
4. Button up the system.
Be sure to place the OCP switch in its original position.
Verification
Power up the system. Execute the SRM set sys_serial_num command.