Service manual

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Chapter 4 DECevent Error Log
4.1 Brief Description of the TLSB Bus........................................................ 4-2
4.1.1 Command/Address Bus................................................................... 4-2
4.1.2 Data Bus ......................................................................................... 4-3
4.1.3 Error Checking ............................................................................... 4-3
4.2 Producing an Error Log with DECevent............................................... 4-4
4.3 Getting a Summary Error Log .............................................................. 4-5
4.4 Supported Event Types......................................................................... 4-6
4.5 Sample Error Log Entries..................................................................... 4-8
4.5.1 Machine Check 660 Error ............................................................... 4-8
4.5.2 Machine Check 620 Error ............................................................. 4-17
4.5.3 DWLPB Motherboard (PCIA) Adapter Error Log ........................ 4-24
4.6 Console Halt Conditions ..................................................................... 4-30
4.6.1 CPU Double Error Halt ................................................................ 4-30
4.6.2 Machine Check Logout Frames .................................................... 4-39
4.6.3 Machine Check Error Log............................................................. 4-42
Chapter 5 Removal and Replacement Procedures
5.1 TLSB Modules....................................................................................... 5-2
5.1.1 How to Replace the Only Processor ................................................ 5-2
5.1.2 How to Replace the Boot Processor................................................. 5-4
5.1.3 How to Add a New Processor or Replace a Secondary
Processor......................................................................................... 5-8
5.1.4 Processor, Memory, or Terminator Module Removal and
Replacement ................................................................................. 5-12
5.1.5 SIMM Removal and Replacement ................................................ 5-14
5.1.6 I/O Cable and KFTHA Module Removal and Replacement.......... 5-18
5.2 TLSB Card Cage Removal .................................................................. 5-20
5.3 Operator Control Panel....................................................................... 5-24
5.4 CD Tray............................................................................................... 5-26
5.5 AC Distribution Box............................................................................ 5-28
5.6 Power Rack Assembly ......................................................................... 5-30
5.7 Cabinet Control Logic (CCL) Panel..................................................... 5-32
5.8 BA36R StorageWorks Shelf ................................................................ 5-34
5.9 DWLPB PCI Box ................................................................................. 5-36
5.10 Plenum Assembly................................................................................ 5-38
5.11 Cabinet Panels .................................................................................... 5-40
5.12 Cables.................................................................................................. 5-42