IBM RS/6000 SP, Maintenance Information

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MAP 0150: 120/160 Thin Node Environment
018 (continued)
Component replaced or reseated.
– Make sure that all cables and components are connected inside the processor node.
– Remove processor node from service position.
– Reconnect all cables at rear of the processor node.
– Put circuit breaker at the front of processor node in the On (‘1’) position.
– Check the Environmental (yellow) LED for an ON or FLASHING condition.
Is the Environmental (yellow) LED ON or FLASHING?
Yes No
019
Problem resolved.
– Go to “MAP 0570: End of Call” on page 1-357.
020
– Put circuit breaker at the front of the processor node in the Off (‘0’) position.
– Go to Step 017 on page 1-62 to service the next highest priority component.
021
Over temperature condition: “shutdownTemp”
Temperature is out of specified range; however, no serious electrical current or fan speed problems have
been detected.
– Check for airflow blockage at air intakes and exhaust of the processor node and system frame. Also,
check air temperature around the frame, looking for sources of abnormally high temperatures (above
40°C or 104°F).
Is there an obvious airflow blockage or abnormally high temperature source near air intakes?
Yes No
022
Problem in node supervisor card.
– Place processor node in service position.
– Replace node 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
023
– Go to Step 026 on page 1-65.
024
Node supervisor card is okay.
– Put circuit breaker at the front of the processor node in the On (‘1’) position.
– Check Environmental (yellow) LED for ON or FLASHING condition.
(Step 024 continues)
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RS/6000 SP MAPs