IBM RS/6000 SP, Maintenance Information

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MAP 0120: Supervisor Bus Problem
036 (continued)
– Perform "Node/Switch Supervisor Self-Test" in
IBM RS/6000 SP: Maintenance Information,
Volume 3, Locations and Service Procedures to verify fix.
Does this test pass?
Yes No
037
– For a 604 or 604e high node, if this is the first time here, replace the blue ribbon I2C cable
inside the high node supervisor card assembly, and go back to Step 036 on page 1-25 and
perform "Node/Switch Supervisor Self-Test" in
IBM RS/6000 SP: Maintenance Information,
Volume 3, Locations and Service Procedures to verify fix. If this is the second time here,
replace the supervisor interface card within the high node supervisor card assembly, and go
back to Step 036 on page 1-25 and perform "Node/Switch Supervisor Self-Test" to verify
fix. If both parts have been replaced, call next level of support.
– For a 332 MHz SMP or POWER3 SMP node, if this is the first time here, replace the
power mix board, and go back to Step 036 on page 1-25 and perform "Node/Switch Super-
visor Self-Test" in
IBM RS/6000 SP: Maintenance Information, Volume 3, Locations and
Service Procedures to verify fix. If this is the second time here, replace the tailgate card
and cable, and go back to Step 036 on page 1-25 and perform "Node/Switch Supervisor
Self-Test" to verify fix. If both parts have been replaced, call next level of support.
– Call next level of support.
038
– If this is a 604, 604e, 332 MHz SMP, or POWER3 SMP node, reinstall the old node supervisor
card.
– Go to Step 039.
039
– Perform "Verification Test for Supervisor Bus" in IBM RS/6000 SP: Maintenance Information, Volume 3,
Locations and Service Procedures.
Does verification test pass?
Yes No
040
– Go to Step 036 on page 1-25.
041
Supervisor problem resolved.
– Make sure the main power switch at the front of the frame is in the On (‘1’) position.
– Put circuit breakers at front of processor node(s) and switch assemblies in the On (‘1’) position.
– If a new 604 or 604e high node supervisor card was installed, and the node supervisor code update
was not already performed, then refer to "Updating the Node Supervisor Code" in IBM RS/6000 SP:
Maintenance Information, Volume 3, Locations and Service Procedures.
Did you just service a switch assembly?
Yes No
042
– Go to “MAP 0570: End of Call” on page 1-357.
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RS/6000 SP MAPs