IBM iSeries 270 Service Manual

1. Do not power down the system if it is powered on; this procedure can be done concurrently.
2. Open the cover so that you can access the field replaceable unit (FRU). See Models 870 and 890 -
Covers.
3. Locate the BPF to be replaced by decoding the SRC (see System reference codes), or see Locations
— Models 870 and 890.
4. Note the state of the BPC’s LED on the same BPA side as the BPF. Then, press the (green) Start
Service button on the UEPO panel, and only proceed if the BPC Good LED is flashing, or the repair
has been scheduled (System outage - EPO off).
5. Verify that the BPF cable is labeled for plug location, and then unplug the cable from the BPC.
6. Loosen the upper and the lower thumb screws using the torque tool (PN 6422789).
7. Move the bulk power regulator (BPR) release levers if necessary, and slide the unit out of the slot. An
automatic door will seal the BPA to avoid excessive cooling loss.
8. If you are replacing the BPF-A, remove and save the cover because you will need it for the
replacement part. The BPF-B does not have a cover.
Note: The BPF-airmover weighs approximately eight pounds.
To replace the Bulk Power F-airmover (BPF):
1. With the thumb screws to the left, slowly slide the unit into the slot and seat carefully against the front
of the bulk power enclosure (BPE), moving the BPR release levers if necessary.
2. Tighten the upper and the lower thumb screws with the torque tool (PN 6422789).
3. Replace the cover from the original bulk power f-airmover.
4. Return the BPR release levers to the ’down’ position, and plug the cable to the BPC, ensuring plug
location.
5. To indicate completion of these steps, press the (white) Service Complete button on the UEPO panel.
This ends the procedure.
Models 870 and 890 - Bulk power regulator (BPR)
For use by authorized service providers.
Use this procedure to remove or replace the bulk power regulator (BPR) on the Models 870 and 890. The
BPR is located in the bottom positions of the bulk power Enclosure (BPE), and to the left of the bulk power
f-airmover (BPF). See Locations — Models 870 and 890.
To remove the bulk power regulator (BPR):
1. Do not power down the system if it is powered on; this procedure can be performed concurrently.
2. Locate the BPR to be replaced by decoding the SRC (see System reference codes), or see Locations
— Models 870 and 890.
3. Open the cover so that you can access the field replaceable unit (FRU). See Models 870 and 890 -
Covers.
4. Note the state of the BPR’s LED. Then, press the (green) Start Service button on the EPO panel, and
only proceed if the LED is off or the repair has been scheduled (System outage - EPO off).
5. Manually turn off (to the right) the BPR’s on-lock/off-unlock switch on the associated BPR unit.
6. Loosen the left and the right thumb screws, using the torque tool (PN 6422789).
7. Push up on the BPR release levers and slide the unit out of the slot.
Note: The BPR weighs approximately 27.5 pounds.
To replace the bulk power regulator (BPR):
1. Make sure that the BPR release levers are in the ’up’ position. Slide the unit into the slot until it is one
inch from the BPE.
2. Then, using both hands on the front of the FRU, firmly seat the BPR against the backplane.
96 Hardware (Remove and Replace; Part Locations and Listings)

IBM iSeries 270 Specifications

General

Brand	IBM
Model	iSeries 270
Category	Server
Language	English