IBM RS/6000 SP, Maintenance Information

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MAP 0520: Switch Assembly Environment
037 (continued)
– Disconnect connectors S00-PC-P4, S00-PC-P6 at the power card(s) and S00-PC-P5 at the supervisor
card. Remove the switch supervisor card. Refer to "Removing the Switch Supervisor Card (HiPS 3.0,
HiPS-LC8, SPS, SPS-8)" in
IBM RS/6000 SP: Maintenance Information, Volume 3, Locations and
Service Procedures.
– Using a digital multimeter, measure resistance at the planar connection for the supervisor card, between
pins 12A and 12B. The resistance should be in a range of 4 to 20 ohms.
Is the measured resistance(s) in the acceptable range?
Yes No
038
– Remove power supply card PS1.
– Repeat measurement from Step 037 on page 1-308.
Is the measured resistance(s) in the acceptable range?
Yes No
039
– If this is the first time through this step, remove power supply card PS2 and go to Step 037
on page 1-308 to repeat measurement.
– Otherwise, replace switch assembly. Refer to "Removing the Switch Assembly" in IBM
RS/6000 SP: Maintenance Information, Volume 3, Locations and Service Procedures.
– Go to Step 030 on page 1-307.
040
– Replace power supply card. Refer to "Removing the Switch Power Card(s) (HiPS 3.0, HiPS-LC8,
SPS, SPS-8)" in IBM RS/6000 SP: Maintenance Information, Volume 3, Locations and Service
Procedures.
– Go to Step 030 on page 1-307.
041
– Replace supervisor card. Refer to "Removing the Switch Supervisor Card (HiPS 3.0, HiPS-LC8, SPS,
SPS-8)" in IBM RS/6000 SP: Maintenance Information, Volume 3, Locations and Service Procedures.
– Go to Step 030 on page 1-307.
042
Problem with PSxFail or PSxFuseGood.
Is this a PSxFail problem?
Yes No
043
Problem with PSFuseGood.
– Go to Step 053 on page 1-311
044
(Step 044 continues)
Chapter 1. Maintenance Analysis Procedures (MAPs)
1-309