IBM RS/6000 SP, Maintenance Information

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MAP 0260: 604 or 604e High Node Power
009 (continued)
– Go to “MAP 0130: Processor Node” on page 1-30.
010
No problem detected.
– Record reason for power-off condition.
– Go to “MAP 0570: End of Call” on page 1-357.
011
Check the node supervisor card yellow LED 5.
Is the yellow LED 5 Off?
Yes No
012
Base code loaded on node supervisor card.
– Go to "Updating the Node Supervisor Code" in
IBM RS/6000 SP: Maintenance Information,
Volume 3, Locations and Service Procedures.
– Go to Step 022 on page 1-132.
013
– Check the SIB green LED at the rear of the processor node.
Is the SIB green LED Off?
Yes No
014
– Go to MAP 0250: 604 or 604e High Node Environment Step 012 on page 1-125.
015
– Check circuit breakers at front of processor node. Put these circuit breakers in the On (‘1’) position if
they are not already.
Do the circuit breakers go (trip) to the Off (‘0’) position?
Yes No
016
– Go to Step 022 on page 1-132.
017
– Place processor node in service position.
– Check power harnesses at power supplies in the rear of the node, at the connection to the circuit
breakers, and at the 48-volt bulk power connections for any obvious problems which might cause a
short.
Does everything appear to be okay?
Yes No
018
– Fix obvious problem(s). If necessary, replace node power harness.
– Remove processor node from service position.
(Step 018 continues)
Chapter 1. Maintenance Analysis Procedures (MAPs)
1-131