System board .........................54
System-board option connectors .................54
System-board internal cable connectors...............55
System-board external connectors.................55
System-board switches and jumpers ................56
System-board LEDs ......................57
Removing the system board and shuttle ..............58
Chapter 5. Diagnostics .....................61
General checkout ........................61
Diagnostic tools overview .....................62
POST error logs ........................63
Viewing error logs from the Configuration/Setup Utility program ......63
Viewing error logs from diagnostic programs .............63
ServerGuide error symptoms....................64
Small computer system interface messages ..............64
Diagnostic programs and error messages ...............64
Diagnostic text message format..................65
Starting the diagnostic programs .................65
Identifying problems using status LEDs ................66
Power-on password override ...................67
Power supply LEDs ......................67
Light path diagnostics .....................67
Recovering the BIOS code ....................68
Power checkout ........................69
Troubleshooting the Ethernet controller ................70
Network connection problems ..................70
Ethernet controller troubleshooting chart ..............71
Ethernet controller messages ..................71
Chapter 6. Symptom-to-FRU index .................73
Beep symptoms ........................74
No-beep symptoms .......................77
POST error codes........................78
Light path diagnostics LEDs ....................83
Diagnostic error codes ......................86
Error symptoms ........................91
DVD-ROM drive error symptoms .................92
Diskette drive error symptoms ..................92
General error symptoms ....................92
Hard disk drive error symptoms ..................93
Intermittent error symptoms ...................93
Keyboard, mouse, or pointing device error symptoms..........93
Memory error symptoms ....................94
Microprocessor error symptoms..................94
Monitor error symptoms ....................94
Option error symptoms .....................96
Power error symptoms .....................96
Serial port error symptoms ...................97
ServerGuide error symptoms...................98
Software error symptoms ....................99
Power-supply LED errors..................... 100
Service processor error codes ................... 100
SCSI error codes ....................... 100
Temperature error messages ................... 101
Fan error messages ...................... 102
iv xSeries 346 Types 8840 and 1880: Hardware Maintenance Manual and Troubleshooting Guide
