IBM RS/6000 SP, Maintenance Information

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MAP 0460: Scalable Electrical Power Base Unit
032 (continued)
– Problem detected with the frame supervisor.
Ÿ Main power switch LED is On
Ÿ
-OR- PDU rear panel LED is On,
Ÿ -BUT- all frame supervisor LEDs are Off.
– Refer to "Replacing the SEPBU Frame Supervisor Card" in IBM RS/6000 SP: Maintenance Information,
Volume 3, Locations and Service Procedures.
– Recheck the LED conditions listed in the above step.
Are any frame supervisors lit?
Yes No
033
– Refer to "Replacing the SEPBU Power Control Interface (PCI) Card" in IBM RS/6000 SP: Mainte-
nance Information, Volume 3, Locations and Service Procedures to replace the SEPBU power
chassis.
– Go to Step 077 on page 1-278 to verify fix.
034
Problem resolved.
– Go to Step 077 on page 1-278 to verify fix.
035
Problem detected concerning Main Power Switch LED:
The main power switch LED is Off.
LED on Main Power Switch is not lit.
– Check main power switch position.
Is main power switch in On (‘1’) position?
Yes No
036
– Put main power switch in On (‘1’) position.
– Check conditions in table from Step 001 on page 1-265.
Do any of these conditions exist?
Yes No
037
No power problems. Go to “MAP 0570: End of Call” on page 1-357.
038
– Go to Step 001 on page 1-265.
039
– Go to Step 040 on page 1-273
040
(Step 040 continues)
1-272
RS/6000 SP MAPs