IBM RS/6000 SP, Maintenance Information

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MAP 0520: Switch Assembly Environment
Is there an obvious airflow blockage or abnormally high temperature source near air intakes?
Yes No
024
Problem in switch supervisor card.
– Have customer remove the switch from the active configuration and power off the switch
assembly.
– If this is an HiPS or HiPS-LC8 switch, place the switch into service position. Refer to "Service
Position Procedures" in IBM RS/6000 SP: Maintenance Information, Volume 3, Locations and
Service Procedures.
– If this is an SPS or SPS-8 switch, turn off the circuit breaker. Unplug cables connected to J1 and
J2 at rear of the switch assembly. Then remove the front panel assembly from the inner chassis.
– If this is an HiPS 2.0, replace switch assembly.
– If this is an HiPS 3.0, HiPS-LC8, SPS, or SPS-8, replace the switch supervisor card.
– Perform "Node/Switch Supervisor Self-Test" in
IBM RS/6000 SP: Maintenance Information,
Volume 3, Locations and Service Procedures.
Does card pass self-test?
Yes No
025
– Go to Step 028.
026
Switch supervisor card is okay.
– Check Environmental (yellow) LED for ON or FLASHING condition.
Is Environmental (yellow) LED ON or FLASHING?
Yes No
027
Problem resolved.
– Go to Step 030 to verify fix.
028
– Check cable connections to switch supervisor card. If no obvious problems are found, call next
level of support.
029
– Have customer remove the switch from the active configuration and power off the switch assembly.
– Remove blockage. Put the switch into service position, if required. Refer to "Service Position Proce-
dures" in IBM RS/6000 SP: Maintenance Information, Volume 3, Locations and Service Procedures.
– With all cables replugged and Environmental (yellow) LED OFF, power on the switch assembly.
– Go to Step 030 to verify fix.
030
Component repaired or replaced.
– If necessary, reinstall switch assembly cover.
– Replace the switch from service position. Refer to "Service Position Procedures" in
IBM RS/6000 SP:
Maintenance Information, Volume 3, Locations and Service Procedures.
(Step 030 continues)
Chapter 1. Maintenance Analysis Procedures (MAPs)
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