HP AB464-9003F Service Manual page 7

5 Troubleshooting...............................................................................................134
Methodology.....................................................................................................................................134
General Troubleshooting Methodology.......................................................................................134
Recommended Troubleshooting Methodology ...........................................................................135
Basic and Advanced Troubleshooting Tables..............................................................................136
Troubleshooting Tools.......................................................................................................................141
LEDs ...........................................................................................................................................141
Front Panel.............................................................................................................................141
External Health LED (EHLED)..........................................................................................141
Internal Health LED (IHLED).............................................................................................142
System Health LED (SHLED)...........................................................................................143
Locator Switch/LED (Unit Identifier or UID)......................................................................143
Diagnostics Panel LEDs.........................................................................................................144
Customer Replaceable Unit Health LEDs..............................................................................144
Diagnostics..................................................................................................................................145
Online Diagnostics/Exercisers.....................................................................................................145
Online Support Tool Availability..............................................................................................145
Online Support Tools List.......................................................................................................145
Linux Online Support Tools..........................................................................................................146
Offline Support Tools List.............................................................................................................146
General Diagnostic Tools.............................................................................................................147
Fault Management Overview......................................................................................................147
HP-UX Fault Management..........................................................................................................147
WBEM indication providers and EMS Hardware Monitors.....................................................148
Errors and Reading Error Logs.........................................................................................................148
Event Log Definitions...................................................................................................................148
Using Event Logs........................................................................................................................148
iLO 2 MP Event Logs...................................................................................................................149
System Event Log (SEL) Review................................................................................................149
Supported Configurations.................................................................................................................151
System Block Diagram................................................................................................................151
System Build-Up Troubleshooting Procedure.............................................................................153
CPU/Memory/SBA............................................................................................................................155
Troubleshooting the CPU............................................................................................................155
IPF Processor Load Order.....................................................................................................155
Processor Module Behaviors.................................................................................................155
Customer Messaging Policy...................................................................................................156
Troubleshooting Memory.............................................................................................................158
Memory DIMM Load Order....................................................................................................158
Memory Subsystem Behaviors..............................................................................................158
Customer Messaging Policy...................................................................................................159
Troubleshooting SBA...................................................................................................................160
Power Subsystem (BPS and I/O VRM)............................................................................................161
Power Subsystem Behavior........................................................................................................161
Power LED/Switch.......................................................................................................................161
Power Supply Power LED...........................................................................................................162
I/O VRM.......................................................................................................................................162
Cooling Subsystem...........................................................................................................................163
Cooling Subsystem Behavior......................................................................................................163
Common I/O Backplane (LBAs/Ropes/PDH/PCI-X Slots)................................................................163
I/O Subsystem Behaviors............................................................................................................163
Customer Messaging Policy........................................................................................................164
Management Subsystem (iLO 2 MP/BMC).......................................................................................167
Manageability LAN LED on the Core I/O board CRU bulkhead..................................................167
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