EK-PM38C-MG-002 DECstation/DECsystem 5000 Model 200 Series Maintenance Guide digital equipment corporation maynard, massachusetts First printing, January 1992 Second printing, April 1993 © Digital Equipment Corporation 1993. USA This equipment generates, uses, and may emit radio frequency energy. The equipment has been type tested and found to comply with the limits for a Class A computing device pursuant to Subpart J of Part 15 of FCC Rules, which are designed to provide reasonable protection against such radio frequency interference. Operation of this equipment in a residential area may cause interference in which case the user at his own expense will be required to take whatever measures may be required to correct the interference. The following are trademarks of Digital Equipment Corporation: DEC PDP VAXBI DECnet ThinWire VAXcluster DECstation TURBOchannel VAXstation DECsystem ULTRIX VMS DECUS ULTRIX-32 VT MicroVAX UNIBUS MicroVMS VAX dt Contents About This Guide .......................................... xix Part I Hardware 1 System Overview System Hardware Configurations . .................... 1–2 System Unit ......................................... 1–4 Controls and Indicators ............................ 1–6 External System Unit Connectors ................... 1–8 Internal Base System Module Connectors . ........... 1–10 Hardware Options and Peripherals . .................... 1–12 CPU Module Description ........................... 1–13 System Boot ROM ................................. 1–13 Memory Modules .................................. 1–14 Monitors and Terminals ............................ 1–15 Keyboard, Mouse, and Other Pointing Devices ......... 1–16 SCSI Drives . .................................... 1–17 TURBOchannel Option Modules . .................... 1–17 For Further Information . ............................ 1–17 iii 2 Console Mode and Operating Mode Modes . ............................................. 2–2 Console Mode . .................................... 2–2 Console prompts ............................ 2–2 To enter console mode . .................... 2–2 Halt button ................................ 2–4 Halt button screen output .................... 2–4 Operating Mode ................................... 2–4 To enter operating mode . .................... 2–4 Console Password Management ........................ 2–5 To Enter the Password . ............................ 2–5 To Set or Change the Password . .................... 2–6 To Remove the Requirement for a Password ........... 2–6 To Erase the Password . ............................ 2–6 System Software Management ......................... 2–7 To Boot System Software ........................... 2–8 To Shut Down System Software . .................... 2–9 To Access ULTRIX Error Logs . .................... 2–9 3 Alternate Terminal Alternate Terminal Settings ........................ 3–1 To Install the Alternate Terminal .................... 3–2 To Reactivate the Regular System Monitor and Keyboard ........................................ 3–3 4 General Hardware Service Operations Antistatic Kit ........................................ 4–2 System Unit Cover ................................... 4–4 Removing the System Unit Cover .................... 4–4 Installing the System Unit Cover .................... 4–4 Front Cover Plate .................................... 4–5 Removing the Front Cover Plate .................... 4–5 Installing the Front Cover Plate . .................... 4–6 Serial Number Plate .................................. 4–7 Removing the Serial Number Plate .................. 4–7 Installing the Serial Number Plate .................. 4–7 Nameplate .......................................... 4–9 Removing the Nameplate Medallion ................. 4–9 Installing the Nameplate Medallion .................. 4–9 Adapters, Terminators, and Loopback Connectors ......... 4–10 iv Serial Line Adapter . ............................ 4–11 Installing a serial line adapter ................ 4–11 Removing a serial line adapter ................ 4–11 SCSI Controller Terminator ......................... 4–12 Installing a SCSI controller terminator ......... 4–12 Removing a SCSI controller terminator ......... 4–12 SCSI Chain Terminator ............................ 4–13 Installing a SCSI chain terminator . ........... 4–13 Removing a SCSI chain terminator . ........... 4–13 ThickWire Ethernet Loopback Connector . ........... 4–14 Installing a ThickWire Ethernet loopback connector .................................. 4–14 Removing a ThickWire Ethernet loopback connector .................................. 4–14 Serial Line Loopback Connector . .................... 4–15 Installing a serial line loopback connector . 4–15 Removing a serial line loopback connector . 4–15 5 Electronic Component Service Operations Base System Module ................................. 5–2 To Install the Base System Module and Chassis ....... 5–4 Base System ESAR Chip ........................... 5–7 To remove the base system ESAR chip ......... 5–7 To install the base system ESAR chip .......... 5–7 CPU Module ........................................ 5–9 CPU Module Upgrade . ............................ 5–9 Removing a CPU Module ........................... 5–12 Installing a CPU Module ........................... 5–12 Memory Modules . .................................... 5–14 Memory Slot Numbers and Address Ranges ........... 5–16 Removing a SIMM Module ......................... 5–18 Installing a SIMM Module .......................... 5–18 NVRAM Module .................................. 5–19 Power Supply ........................................ 5–20 Removing the Power Supply ........................ 5–22 To Install the Power Supply ........................ 5–23 TURBOchannel Option Modules ........................ 5–26 To Remove an Option Module . .................... 5–26 Installing an Option Module ........................ 5–27 Ethernet Option Module ESAR Chip ................. 5–28 For Further Information . ............................ 5–30 v 6 Storage Drives SCSI Requirements ................................... 6–2 SCSI Cable Lengths . ............................ 6–3 For Further Information . ............................ 6–4 7 Keyboards and Pointing Devices Keyboards ........................................... 7–2 Mouse or Tablet . .................................... 7–3 Removing and Installing Input Devices .................. 7–4 To Remove the Keyboard, Mouse, and Cable .......... 7–4 To Install the Keyboard, Mouse, and Cable ........... 7–4 LPFK and PFD Devices . ............................ 7–6 Part II Troubleshooting 8 Troubleshooting Overview Introduction ......................................... 8–1 Power . ............................................. 8–2 Self-Tests ........................................... 8–3 Configuration Displays ................................ 8–3 Environment Variables ................................ 8–4 Tests and Scripts . .................................... 8–4 Tests ............................................ 8–5 Scripts ........................................... 8–5 9 Troubleshooting Information LED Displays ........................................ 9–2 Diagnostic LED Array . ............................ 9–2 CPU Module LEDs ................................ 9–2 Power Supply LED ................................ 9–2 Configuration Displays ................................ 9–4 Configuration Overview ............................ 9–5 Detailed Configuration . ............................ 9–6 Error Messages . .................................... 9–9 Test Error Messages . ............................ 9–9 Memory Test Error Messages . .................... 9–13 vi Console Exception Messages ........................ 9–14 Example: Console Exception Message (R3000) . 9–15 Example: Console Exception Message (R4000) . 9–15 Addresses ........................................... 9–16 Slot Numbers . .................................... 9–16 Memory Addresses ................................ 9–17 Hardware Physical Addresses . .................... 9–18 ULTRIX Error Logs .................................. 9–20 Examining Error Logs . ............................ 9–20 ULTRIX Error Log Format ......................... 9–21 ULTRIX Error Log Event Types . .................... 9–23 Memory Error Logs ................................ 9–24 Memory error log example 1 .................. 9–24 Memory error log example 2 .................. 9–27 Registers ............................................ 9–28 For Further Information . ............................ 9–28 10 Troubleshooting Tools Console Mode ........................................ 10–2 Alternate Terminal ................................... 10–2 Tests . ............................................. 10–2 Slot Numbers in Test Commands and Error Messages . 10–3 Power-Up Self-Tests .................................. 10–5 Console Mode Tests ................................... 10–6 Using the t Command . ............................ 10–6 To display a list of available tests . ........... 10–8 Common Tests .................................... 10–9 SCSI controller (cntl) test .................... 10–9 SCSI send diagnostics (sdiag) test . ........... 10–9 Ethernet external loopback test ............... 10–10 SCC transmit and receive test ................ 10–10 SCC pins test . ............................ 10–10 Test Scripts ......................................... 10–11 To Display a List of Available Scripts ................ 10–12 To Display the