5
Contents
................................................................................ 11
Sun Server X4-4 Service Manual Overview
....................................................... 15
................................................................................ 17
Server Overview ........................................................................................... 18
Supported Components ........................................................................... 18
External Components and Features ................................................................... 19
Server Front Panel Features .................................................................... 19
Server Back Panel Features ..................................................................... 20
Server Subsystems Overview ........................................................................... 21
System Block Diagrams ......................................................................... 22
Processor Subsystem .............................................................................. 23
Memory Subsystem ............................................................................... 26
Cooling Subsystem ................................................................................ 26
Power Subsystem .................................................................................. 29
Input/Output (I/O) Subsystem .................................................................. 29
System Management Subsystem ............................................................... 31
Troubleshooting and Diagnostics
..................................................................... 33
Troubleshooting Server Component Hardware Faults ........................................... 33
Troubleshooting Server Hardware Faults ................................................... 34
Troubleshooting and Diagnostic Information .............................................. 38
Troubleshooting the Front Panel Indicators ................................................ 38
Indicator Blink Rates ............................................................................. 43
The Server Fault Remind Test Circuits ...................................................... 49
Troubleshooting System Cooling Issues ..................................................... 49
Troubleshooting Power Issues .................................................................. 51
Troubleshooting With Diagnostic Tools ............................................................. 54
Diagnostic Tools ................................................................................... 55
Summary of Contents for Sun Server X4-4
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