IBM RS/6000 SP, Maintenance Information

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MAP 0110: Supervisor Subsystem
003 (continued)
Were any LEDs on any processor node or switch assembly lit before or during this step?
Yes No
004
No supervisor power 12 V dc available.
– Go to “MAP 0370: Main Power” on page 1-222.
005
Frame supervisor card has power problem.
Note: If this frame has a PDU, you will have to remove the cover from the PDU dc section.
– Replace the frame supervisor card (refer to "FRU Removals and Replacements" in IBM RS/6000
SP: Maintenance Information, Volume 3, Locations and Service Procedures).
– Check LEDs on frame supervisor card.
Are any LEDs lit on frame supervisor card?
Yes No
006
Problem with supervisor power 12 V dc.
– Go to “MAP 0370: Main Power” on page 1-222.
007
– Go to Step 033 on page 1-18.
008
Is frame supervisor LED #3 (yellow LED) or LED #7 or #8 (when there is a twin-tail frame super-
visor card) flashing?
Yes No
009
Is frame supervisor LED #2 (green LED) flashing?
Yes No
010
– Go to “MAP 0120: Supervisor Bus Problem” on page 1-19.
011
– Go to “MAP 0370: Main Power” on page 1-222.
012
– Check for a serial cable connection problem. The serial cable is connected between the frame super-
visor card and the control workstation.
(Step 012 continues)
Chapter 1. Maintenance Analysis Procedures (MAPs)
1-15