Power PIP6
A power supply is reporting a load fault. Read the “Overview” on page 387 before
continuing with this procedure.
Note: Determine if the system has logical partitions. Go to “Determining if the
System Has Logical Partitions” on page 943 before continuing with this
procedure. If the system has logical partitions, perform this procedure only
from the Primary partition’s console and the system control panel.
1. Perform the following:
a. Power off the frame that you are working on. (Frames with FC 5078/0578
attached – trace and remove the lower frame power supply AC jumper
cables at the AC input/battery charger, or at the AC modules on dual line
cord frames.
b. Disconnect all the I/O devices (tape, diskette, optical, and disk units) from
the unit that you are working on by sliding them partially out of the unit
(see “Chapter 4. Removal and Installation Procedures” on page 617).
c. Remove and label all of the cards that are installed in the PCI card area.
d. Power on the system or frame that you are working on. (Frames with FC
5078/0578 attached – reconnect the lower frame power supply AC jumper
cables at the AC input/battery charger, or at the AC modules on dual line
cord frames.)
Does a power reference code occur?
Yes No
↓ Go to step 12 on page 391 of this procedure.
2. Perform the following:
a. Power off the frame that you are working on. (Frames with FC 5078/0578
attached – trace and remove the lower frame power supply AC jumper
cables at the AC input/battery charger, or at the AC modules on dual line
cord frames.)
b. Remove power supplies P02 and P03 if they are installed.
c. Power on the system or frame that you are working on. (Frames with FC
5078/0578 attached – reconnect the lower frame power supply AC jumper
cables at the AC input/battery charger, or at the AC modules on dual line
cord frames.)
Does a power reference code occur?
No Yes
↓ Go to step 5 on page 390 of this procedure.
3. Perform the following:
a. Power off the frame that you are working on. (Frames with FC 5078/0578
attached – trace and remove the lower frame power supply AC jumper
cables at the AC input/battery charger, or at the AC modules on dual line
cord frames.)
b. Reconnect power supply P02 that you removed in step 2 of this procedure.
c. Power on the system or frame that you are working on. (For FC 5078/0578
– reconnect the power supply AC jumper cables at the AC input/battery
charger, or at the AC modules on dual line cord frames.)
Does a power reference code occur?
No Yes
Power PIPs
Chapter 3. Problem Isolation Procedures (PIPs), Failing Items, and Symbolic FRU Isolation 389
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