Table 7. Service Processor Error Codes (continued)
Error Code Description Action/
Possible Failing FRU
4B27 25B1 Processor system and 6xx bus processor
runtime diagnostics detected 750 MHz clock
fault
750 MHz clock
Location: U1.1-P1.1.1
4B27 25B3 Processor system and 6xx bus processor
runtime diagnostics detected 4W 750 MHz
processor fault
Go to the service processor Processor
Configuration/Deconfiguration Menu to check
the states of the processors. See ″Processor
Configuration/Deconfiguration Menu″ on page
373 for more information. Replace the card
that has the bad processors.
Locations: U1.1-P1-C1
U1.1-P1-C2
4B27 25B4 Processor system and 6xx bus processor
runtime diagnostics detected 2W 750 MHz
processor fault
Go to the service processor Processor
Configuration/Deconfiguration Menu to check
the states of the processors. See ″Processor
Configuration/Deconfiguration Menu″ on page
373 for more information. Replace the card
that has the bad processors.
Locations: U1.1-P1-C1
U1.1-P1-C2
4B27 25DA Processor system and 6xx bus processor
runtime diagnostics detected 500 MHz clock
fault
500 MHz clock
Location: U1.1-P1.1.1
4B27 267D Processor system and 6xx bus processor
runtime diagnostics detected an 8W, 750
MHz regulator fault
8W regulator card
Location: U1.1-P1-V1
4B27 2687 Processor system and 6xx bus processor
runtime diagnostics detected remote I/O bus
adapter fault
Remote I/O bus adapter
Location: U0.1-P1.1
4B27 271A Processor system and 6xx bus processor
runtime diagnostics detected primary I/O
backplane fault
Primary I/O backplane
Location: U0.1-P1
4B27 271D Processor system and 6xx bus processor
runtime diagnostics detected secondary I/O
backplane fault
Secondary I/O backplane
Locations: U0.2-P1
U0.3-P1
U0.4-P1
4B27 2733 Processor system and 6xx bus processor
runtime diagnostics detected I/O clock fault
CEC RIO bus adapter
Location: U1.1-P1.1
4B27 27AA Processor system and 6xx bus processor
runtime diagnostics detected a 2W/4W
regulator fault
2W/4W regulator card
Location: U1.1-P1-V1
4B27 27AB Processor system and 6xx bus processor
runtime diagnostics detected an 8W regulator
fault
8W regulator card
Location: U1.1-P1-V1
4B27 281C Processor system and 6xx bus processor
runtime diagnostics detected CEC backplane
fault
CEC backplane
Location: U1.1-P1
4B27 281D Processor system and 6xx bus processor
runtime diagnostics detected Model 6M1
CEC backplane fault
CEC backplane
Location: U1.1-P1
Chapter 5. Error Code to FRU Index 319