70
SBXL52: Hardware Maintenance Manual and Troubleshooting Guide
✏
NOTE
See “System” on page 104 to determine which components should be replaced by a field service
technician.
Beep/symptom
FRU/action
1-1-2
(Microprocessor register test failed)
1.
Optional microprocessor (if installed)
2.
Microprocessor
3.
System board
1-1-3
(CMOS write/read test failed)
1.
Battery
2.
System board
1-1-4
(BIOS ROM checksum failed)
1.
Flash BIOS.
2.
DIMM.
3.
System board.
1-2-1
(Programmable Interval Timer
failed)
•
System board
1-2-2
(DMA initialization failed)
•
System board
1-2-3
(DMA page register write/read
failed)
•
System board
1-2-4
(RAM refresh verification failed)
1.
DIMM
2.
System board
1-3-1
(first 64K RAM test failed)
1.
DIMM
2.
System board
1-3-2
(first 64K RAM parity test failed)
1.
DIMM
2.
System board
2-1-1
(Secondary DMA register failed)
•
System board
2-1-2
(Primary DMA register failed)
•
System board
2-1-3
(Primary interrupt mask register
failed)
•
System board
2-1-4
(Secondary interrupt mask register
failed)
•
System board
2-2-1
(Interrupt vector loading failed)
•
System board
2-2-2
(Keyboard controller failed)
1.
Keyboard
2.
System board
3.
Management module
