Mappwr-F: Cable Problem In Power Subsystem - IBM iSeries Series Hardware Problem Analysis And Isolation

b. DCA 2-RH at location M32
35. Power on the system. See Power on/off the system and logical partitions.
36. Did the system stop with the same error code as recorded in step 1 (See page 392)?
v Yes: Continue with the next step.
v No: The book just replaced was defective. Return the system to its original configuration. See
Verify the repair.
This ends the procedure.
37. Power off the system. See Power on/off the system and logical partitions. Then, make sure all amber
logic-power LEDs of all installed processor subsystem DCAs are off.
38. Remove the new book that was just installed in step 34 (See page 394) and reinstall the original
book.
39. Have all the books listed in step 34 (See page 394) been replaced with new or original books?
v Yes: Continue with the next step.
v No: Go to step 34 (See page 394).
40. Examine the amber logic-power LEDs of all installed processor subsystem DCAs.
41. Are all amber logic-power LEDs of all installed processor subsystem DCAs off?
v Yes: Continue with the next step.
v No: Replace the DCA that has the amber logic power LED that did not turn off. See symbolic FRU
"DCAPWR" on page 324.
42. Attention: Before replacing the system backplane, call your next level of support. Then, replace the
system backplane at location MB1. See Locations — Models 870 and 890 with an FC 9094 Base I/O
Tower for part number and remove and replace information.
43. Power on the system. See Power on/off the system and logical partitions.
44. Did the system stop with the same error code as recorded in step 1 (See page 392)?
v Yes: Continue with the next step.
v No: The system backplane was defective. Return the system to its original configuration. See
Verify the repair.
This ends the procedure.
45. Power off the system. See Power on/off the system and logical partitions. Then, make sure all amber
logic-power LEDs of all installed processor subsystem DCAs are off.
46. Has the system backplane been replaced?
v Yes: Call your next level of support.
v No: Go to step 42 (See page 395).

MAPPWR-F: Cable problem in power subsystem

For use by authorized service providers.
Note: Read the Danger and caution notices in the "MAPPWR" on page 364 introduction before performing
this procedure.
Important: Always ensure that the opposite side cable for the unit that you are replacing is connected
correctly before attempting concurrent maintenance.
1. Find the error code and in the table below that sent you to this procedure. Record the associated
FRUs listed in the Action column.
Table 1. Error codes
Error code
1xxA x115
Action
BPC-A
MDA-1
BPC-A-J04 to MDA-1-J01 cable
Analyze hardware problems
395