IBM pSeries 670, Service Manual

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Bulk Power Enclosure (BPE)
Attention: This service procedure may produce other power error code(s) (101x xxxx) between the time
the Start Service button is pressed and the Service Complete button is pressed, during concurrent
repair. If the system behaves normally, as described by this procedure, ignore these error codes.
Removal
Attention: The BPE unit weighs approximately 18.14 kg (40 lbs).
1. Locate the BPE to be replaced.
2. Note the state of all ENBL LEDs in the BPE.
3. Press the green Start Service button on the UEPO switch.
4. Proceed only if all BPR ENBL LEDs go off or the repair has been scheduled (System outage - EPO
off),
5. Manually slide all Lock/Unlock switches (power switches to the right, unlock) on all BPRs attached to
the BPA side being repaired. At this point, the ENBL LEDs turn off.
6. Manually turn off all IBF circuit breakers attached to the BPA side being repaired.
7. Verify that all cables are labeled for plug location and then unplug the cables from the BPA in the
following order:
a. BPC
b. BPD
c. BPR
d. IBF (if installed)
e. ac line power cord
8. Remove all pluggable FRUs from the BPE (BPRs, BPCs, BPDs, and BPF).
9. Remove the four mounting screws.
Note: Do not remove the two screws at the bottom left, as these fasten the cage rail to the frame.
10. Slide the unit out of the frame.
Replacement
Attention: Make sure that the all BPR Lock/Unlock switches (power switches) are in the unlock (right,
OFF) position on this BPA before proceeding.
Attention: Make sure that the UEPO bypass switch on the BPC front panel is in the NORMAL position.
1. Slowly slide the BPE into the frame using the right side guide pins until the side flanges contact the
frame.
2. Fasten the four mounting screws.
3. Replace all pluggable FRUs to the BPE (BPR, BPC, BPDs, BPF, and baffles).
Note: Be sure to check the board connector for each FRU for any visible signs of damage (such as
broken sockets.) before plugging into the backplane. Replace any FRU that is damaged.
4. Plug all cables to the BPA FRUs, ensuring that the plug location and the cable label agree.
5. Plug in the ac line power cords.
6. Manually turn on all IBF circuit breakers (if installed) attached to the BPA side being repaired.
7. Manually move all Lock/Unlock switches (power switches) to the lock position (the left, ON position) on
all BPRs attached to the BPA.
8. Press the white Service Complete button on the UEPO switch to indicate completion of this
procedure. The BPA automatically configures as it powers on.
Chapter 9. Removal and Replacement Procedures
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