IBM RS/6000 SP, Maintenance Information

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MAP 0470: SEPBU Power Control Interface
008 (continued)
Does frame supervisor green LED #2 (dc OK) show a solid ON condition?
Yes No
009
Problem is in SEPBU power chassis.
DANGER
High voltage present. Perform “Lockout/Tagout Procedure for PDU” on page 1-2
or “Lockout/Bagout Procedure for PDU” on page 1-3 to remove all power to the
frame.
– Power off system.
– Refer to "Replacing the SEPBU Power Control Interface (PCI) Card" in
IBM RS/6000 SP:
Maintenance Information, Volume 3, Locations and Service Procedures to replace the
SEPBU power chassis.
– Reconnect ac power and power on the system.
– Go to Step 023 on page 1-282 to verify fix.
010
Problem resolved.
– Go to Step 023 on page 1-282 to verify fix.
011
Problem resolved.
– Go to Step 023 on page 1-282 to verify fix.
012
Remote power control cables are installed and local/auxiliary switch is in the auxiliary position.
– Trace power control cables back until you find the first remote unit that is powered on or in the local
position.
Is this remote unit powered on?
Yes No
013
– Power on this remote unit.
– Check frame supervisor green LED #2 (dc OK) for a solid ON condition.
Does frame supervisor green LED #2 (dc OK) show a solid ON condition?
Yes No
014
– Go to Step 001 on page 1-280.
015
Problem resolved.
– Go to Step 023 on page 1-282 to verify fix.
Chapter 1. Maintenance Analysis Procedures (MAPs)
1-281