IBM pSeries 690 Service Manual page 880

Bulk Power Fan (BPF)
The BPF is located immediately to the right of the BPC and positioned vertically in the BPA.
Removal
Attention: The BPF unit weighs approximately 3.63 kg (8 lbs).
1. Locate the BPF to be replaced.
2. Note the state of the BPC ENBL (Good) LED on the same BPA side as the BPF to be replaced.
3. Press the green Start Service button on the UEPO switch.
4. Proceed only if the ENBL (Good) LED goes off or the repair has been scheduled. If the repair has
been scheduled, power off the system as described in "Powering Off and Powering On the System" on
page 854, then return here.
5. Verify that the BPF cable is labeled for plug location and then unplug the cable from the BPC.
6. Remove the fan cover plate and set aside for the replacement procedure.
7. Loosen the upper and lower fasteners using the torque tool (part number 6422789)l. Move the BPR
release, levers if necessary, and slide the unit out of the slot.
Replacement
1. Ensure that the BPF fasteners are to the left side.
2. Slowly slide the BPF into the slot and carefully seat the BPF against the front of the BPE, moving the
BPR release levers if necessary.
3. Tighten the upper and lower fasteners with the torque tool.
4. Return the BPR release levers to the down position, if necessary.
5. Plug the BPF cable to the BPC, ensuring that the plug location and the cable label agree.
6. Press the white Service Complete button on the UEPO switch to indicate completion of this
procedure.
7. If a high performance switch is installed in or attached to the system, perform the steps described in
"Frame (Power Subsystem) Firmware Update with a pSeries High Performance Switch Installed" on
page 825 to insure that the new BPF contains the correct code.
864 Eserver pSeries 690 Service Guide