IBM RS/6000 SP, Maintenance Information

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MAP 0170: Thin Processor Node Control
039 (continued)
Does processor node pass all diagnostics?
Yes No
040
– Repair problem as indicated by diagnostics. Use “MAP 0130: Processor Node” on page 1-30 as
necessary.
041
Problem resolved.
– Go to “MAP 0570: End of Call” on page 1-357.
042
Yellow or green LED on processor node is not functioning.
– Have the customer remove the processor node from the active configuration and power off the
processor node.
– Put the circuit breaker at the front of the processor node in the Off (‘0’) position.
– Perform "Node/Switch Supervisor Self-Test" in
IBM RS/6000 SP: Maintenance Information, Volume 3,
Locations and Service Procedures, ignoring PASS/FAIL results.
Do the yellow and green LEDs light at any time?
Yes No
043
– Place processor node in service position.
– Replace LED display card.
– Perform "Node/Switch Supervisor Self-Test" in
IBM RS/6000 SP: Maintenance Information,
Volume 3, Locations and Service Procedures.
Does green LED light at any time?
Yes No
044
– Replace the node supervisor card.
– Perform "Node/Switch Supervisor Self-Test" in
IBM RS/6000 SP: Maintenance Information,
Volume 3, Locations and Service Procedures to verify replacement.
– Go to Step 046.
045
Problem resolved.
– Remove processor node from service position.
– Put the circuit breaker at the front of the processor node in the On (‘1’) position.
– Go to “MAP 0570: End of Call” on page 1-357.
046
All LEDs are operating.
– Remove processor node from service position.
– Reconnect all cables at rear of the processor node.
– Put the circuit breaker at the front of the processor node in the On (‘1’) position.
(Step 046 continues)
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RS/6000 SP MAPs