Mappwr-6: There Is A Processor (Critical/Warning) Overtemperature Fault - IBM iSeries Series Hardware Problem Analysis And Isolation

– Inlet opening in left side of front BPA, BPA A
– Outlet opening in right side of rear BPA, BPB B
– Bulk power F-airmover (BPF) cover is present on front BPA and absent on rear BPA
v Processor subsystem cage:
– Inlet opening at top front of processor subassembly
– Outlet opening at top rear of processor subassembly
Are all of these openings clear and unobstructed?
v Yes: Continue with the next step.
v No: Remove any obstructions and go to Verify the repair.
This ends the procedure.
2. Do all book positions in the processor subsystem contain books or fillers? See Models 870 and 890
remove and replace procedures for the appropriate book procedure.
v Yes: Continue with the next step.
v No: Fill any open positions with books or fillers. Then, go to Verify the repair.
This ends the procedure.
3. Are the air filters clean and free of any obstructions? See the Processor subsystem assembly - Models
870 and 890 for the part number and link to the remove and replace procedure for the Motor scroll
assembly (MSA) air filters.
v Yes: Continue with the next step.
v No: Replace the air filters and clean the airflow pathway as needed. Then, go to Verify the repair.
This ends the procedure.
4. Remove the blowers from the affected subsystems.
Attention: Do not put your hand into the enclosure. Push the spring loaded door open and hold it
open with one hand. Using a suitably long instrument (a 12-inch ruler or long-handled screwdriver),
push gently against the recirculation flaps at the back of the blower enclosure. Are all the recirculation
flaps in both enclosures free to swing up?
v Yes: Reinstall the blower. See Verify the repair.
This ends the procedure.
v No: The enclosure is not a replaceable FRU. Contact your next level of support.
This ends the procedure.

MAPPWR-6: There is a processor (critical/warning) overtemperature fault

For use by authorized service providers.
Note: Read the Danger and caution notices in the "MAPPWR" on page 364 introduction before performing
this procedure.
1. Is the room ambient temperature in normal range (less than 35 degrees C or 95 degrees F)?
v No: Notify the customer. The customer must bring the room temperature within normal range. See
Verify the repair.
This ends the procedure.
v Yes: Continue with the next step.
2. Are the system front and rear doors free of obstructions?
v No: Notify the customer. The system must be free of obstructions for proper air flow. See Verify the
repair.
This ends the procedure.
v Yes: Exchange the following field replaceable units (FRUs), if present, one at a time. See Locations
- Models 870 and 890 for the part number and a link to the remove and replace procedure:
– The processor MCM module 0, at location M21
– The processor MCM module 3 at location M14
Analyze hardware problems
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