IBM RS/6000 SP, Maintenance Information

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MAP 0220: Wide Processor Node Power
MAP 0220: Wide Processor Node Power
Note: Refer to "Service Position Procedures" in IBM RS/6000 SP: Maintenance Information, Volume 3,
Locations and Service Procedures for placing or removing processor node(s) in/from service posi-
tion.
001
– From the system monitor, check the Power (green) LED for this processor node.
The definition of the Power (green) LED is as follows:
Power (Green)
Off No 48 V dc power available at processor node.
Flashing Power available at processor node, but RS/6000 logic is Off.
On Power available at processor node, and RS/6000 logic is On.
Is Power (green) LED Off?
Yes No
002
Processor node getting 48 V dc power.
Is Power (green) LED flashing?
Yes No
003
Power (green) LED is On, indicating no problem with power supply.
– Verify that you have the proper processor node, then go to “MAP 0130: Processor Node”
on page 1-30.
– If this is the proper processor node, call the next level of support.
004
Processor node is getting power.
– Power on RS/6000 logic from the virtual front panel on the control workstation.
Does Power (green) LED light and stay lit?
Yes No
005
Processor node not responding to the command.
– Go to “MAP 0110: Supervisor Subsystem” on page 1-10.
006
RS/6000 logic getting power.
Does processor node IPL successfully?
Yes No
007
Processor node has problem with IPL.
– Go to “MAP 0130: Processor Node” on page 1-30.
Chapter 1. Maintenance Analysis Procedures (MAPs)
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