DEC 3000 Model 500X AXP workstation. The guide is also intended for Digital customers who have a self- maintenance agreement with Digital. This guide is a supplement to DEC 3000 Model 500/500S AXP Service Information. This is a new document. Digital Equipment Corporation...
Preface About This Guide Purpose and This guide is a support and reference document for Digital service Audience personnel who perform maintenance work on the DEC 3000 Model 500X AXP workstation. The guide is also intended for Digital customers who have a self-maintenance agreement with Digital.
About This Guide, Continued Chapter 5, SCSI Utilities Chapter 6, Troubleshooting Appendix A, Upgrading Firmware Appendix B, Monitor Alignment Diagnostics Appendix C, LED Codes and Error/Status Messages Conventions This guide uses the following conventions: Used in This Guide Convention Meaning Note Provides general information on the current topic.
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About This Guide, Continued Related The following documents provide additional information about the Documentation DEC 3000 Model 500X AXP workstation: Document Order Number DEC 3000 Model 500X AXP Owner’s EK–D5AXP–OG Guide DEC 3000 Model 500X AXP Options EK–D5AXP–PG Installation Guide...
Chapter 1 System Overview System Overview The DEC 3000 Model 500X AXP system is a high-performance System Components deskside workstation. The system includes the following components: System module I/O module Memory subsystem Power supply Regulator module The DEC 3000 Model 500X AXP system provides support for Up to four SCSI internal disk drives Two 5.25-inch, half-height, removable SCSI devices Up to seven external SCSI devices...
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System Overview, Continued System Module Controller for the TURBOchannel I/O bus (continued) 8-plane two-dimensional graphics buffer logic for base graphics 256K byte flash ROM (system ROM) Three TURBOchannel option slots The I/O module includes the following components: I/O Module TOY/NVR controller chip Two serial line controllers ISDN interface with audio I/O Two SCSI controllers...
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System Overview, Continued Addresses generated by DMA devices in the I/O system may be translated by a scatter/gather map. The scatter/gather map can map 32K byte pages. This translation is an option, enabled on a device-by-device basis. Serial Lines: The serial line interface supports the following equipment: Equipment Function...
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System Overview, Continued Memory The memory subsystem includes the following: Subsystem Four memory motherboards (MMB) that mount on the system module. To have an operational memory subsystem, all four MMBs must be present. The memory arrays are spread among the four MMBs. Each bank of memory consists of eight memory modules, two on each MMB.
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System Overview, Continued CPU/Cache The DEC 3000 Model 500X AXP system contains a single chip processor and floating point running at 5.0 nanoseconds. The processor is a superscalar, superpipelined implementation of the Alpha AXP architecture. The DEC 3000 Model 500X AXP system contains the following direct-mapped caches: Icache (instruction cache) Dcache (data cache)
Front View Front View Figure 1–1 shows the controls, lights, and devices on the front of the DEC 3000 Model 500X AXP system.Table 1–1 describes their function. Figure 1–1 Front View Line LJ-02490-TI0 Continued on next page 1–6...
Front View, Continued Table 1–1 DEC 3000 Model 500X AXP System (Front) This Feature... Lets You... , and Removable media device Access devices that use removable storage media, slots such as diskettes, compact disks, cassette tapes, or cartridge tapes. DC OK light Check that all dc voltages are present on the power supply.
Rear View Rear View Figure 1–2 shows the location of switches, connectors, and modules on the rear of the DEC 3000 Model 500X AXP system. Table 1–2 describes their function. Figure 1–2 Rear View ISDN LJ-02982-TI0 Continued on next page 1–8...
Rear View, Continued Table 1–2 DEC 3000 Model 500X AXP System (Rear) This Feature... Lets You... 10baseT port Connect a 10baseT (twisted-pair) Ethernet network cable. AUI Ethernet port Connect an AUI (Thickwire) Ethernet network cable. ISDN port Connect an ISDN network cable. Printer/alternate console port Connect a printer or an alternate console.
Chapter 2 Configuration Chapter Overview This chapter covers the following topics: Chapter Topics System Module Jumper Locations Internal Cable Routing Power Cable Routing Model 500/500S For information on the following topics, see the configuration Guide chapter in DEC 3000 Model 500/500S AXP Service Information: General configuration rules System module jumper locations (Model 500/500S) I/O module jumper locations...
System Module Jumper Locations Figure 2–1 shows the location of jumpers, the serial ROM, and the System Module Jumper sense cable connection on the system module. Table 2–1 describes Locations the jumpers. Figure 2–1 System Module Jumper Locations L J - 0 2 2 7 2 - T I 0 Continued on next page 2–2...
System Module Jumper Locations, Continued Table 2–1 System Module Jumpers Default Feature Description Comments Setting Serial ROM – – Sense cable Must be Installed. connection installed. Serial ROM jumpers – Jumper location 0 only. 200 MHz jumper Must be Enabled. installed.
Internal Cable Routing Figure 2–2 shows cable connections between modules and disks in Internal Cable Routing the DEC 3000 Model 500X AXP system. Figure 2–2 Internal Cabling LS M M o d u l e F ix e d D i s k F ix e d D i s k A u d i o Mo d u l e...
Power Cable Routing Figure 2–3 shows power connections between the power supply, Power Cable Routing disks, fans, the system module, and the regulator module. Figure 2–3 Power Cabling Fi x e d D i s k F ix e d D i s k R e m o v a b l e Me d i a Fi x e d D i s k P o w e r S u p p l y...
Chapter 3 Using the Console Chapter Overview For information on using the console, see Chapter 3 in DEC 3000 Model 500/500S Guide Model 500/500S AXP Service Information. That chapter covers the following topics: Console Command List Commands: – BOOT – CONTINUE –...
Chapter 4 Diagnostic Testing Chapter Overview For information on diagnostic testing, see Chapter 4 in DEC 3000 Model 500/500S Guide Model 500/500S Service Information. That chapter covers the following topics: FRU Code Table List of Diagnostics Running Diagnostic Tests Entering and Exiting Console and Service Mode Diagnostics: –...
Chapter 5 SCSI Utilities Chapter Overview For information on utilities, see Chapter 5 in DEC 3000 Model Model 500/500S Manual 500/500S Service Information. That chapter covers the following topics: SCSI Utility List Show Device Utility Hard Disk Eraser Utility Diskette Formatter Utility Disk Verifier Utility 5–1...
Chapter 6 Troubleshooting Chapter Overview This chapter covers the following topics: Chapter Topics Power or Fan Failures For information on the following topics, see Chapter 6 in DEC Model 500/500S 3000 Model 500/500S Service Information. That chapter covers Guide the following topics: System Device FRU Codes Power-Up LED Error Codes 84 Fail Code...
Power or Fan Failures Indications When a power failure or fan failure occurs, the following conditions exist: The on/off switch is on. The green DC OK LED above the on/off switch is off. No power is present. The red fan failure LED below the on/off switch may be on or off, depending on the failure.
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Power or Fan Failures, Continued Power up the unit. If the power supply shuts down, then one of the three bottom system fans have failed. NOTE When the unit is powered down, there is a 10- second delay before the power supply shuts down.
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Power or Fan Failures, Continued Power up the unit with the disk harness cables to the power supply connected. If the DC OK LED is off, this indicates the disk harness is bad. If the DC OK LED is on, power down the unit and connect the regulator input cable to the power supply (6–2).
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Power or Fan Failures, Continued If the DC OK LED is off, replace the 5.1V A cable. When you replace the cable, connect both ends. 10. Power up the unit. If the unit powers up correctly, the failure is corrected. If the unit does not powered up correctly, go to step 11.
Power or Fan Failures, Continued Figure 6–2 Power Supply Connections Regulator Input Cable 5.1 V A Cable 5.1 V B Cable Disk Harness Assembly Regulator Module LJ-02992-TI0 6–7...
Chapter 7 Removing and Replacing FRUs Chapter Overview This chapter covers the following topics: Chapter Topics FRU Locations Top Cover Front Bezel Side Panels Rear Bezel Audio Module Assembly Lights and Switch Module Power Supply RZxx Disk Drives TURBOchannel Module Regulator Module I/O Module System Fans...
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Chapter Overview, Continued Chapter Topics Memory Motherboard (continued) Memory Module System Module System and Power Cable Routing Part Numbers For convenience, each removal procedure lists the part numbers of the FRUs removed in that procedure. Prevent ESD When removing an FRU, use a properly grounded wriststrap to prevent electrostatic discharge (ESD).
FRU Locations Locating an To locate an FRU: Find the FRU in Table 7–1. Locate the FRU in Figure 7–1 or 7–2 by locating its reference number. To remove the FRU, refer to the FRU’s removal procedure in this chapter. Table 7–1 FRU Table Figure Reference Front bezel...
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FRU Locations, Continued Figure 7–1 shows the right side of the DEC 3000 Model 500X AXP system. Figure 7–1 FRU Locations (Right Side) L J - 0 2 9 3 9 - T I 0 Continued on next page 7–4...
FRU Locations, Continued Figure 7–2 shows the left side of the DEC 3000 Model 500X AXP system. Figure 7–2 FRU Locations (Left Side) L J - 0 2 9 3 1 - T I 0 7–5...
Top Cover Keylock If the unit is locked, the customer is required to supply keys to Security the Digital service representative to open the top cover. Before leaving the site, the Digital service representative should return all keys to the customer or inform the customer that the unit is locked.
Top Cover, Continued Figure 7–3 Removing the Top Cover MLO-007577 L J - 0 1 7 7 9 - T I 0 Top Cover To install the top cover, reverse the removal steps. Replacement 7–7...
Front Bezel Front Bezel NOTE Before the system is powered down, have the system Removal manager perform a system shutdown if needed. To remove the front bezel: Step Action Refer to Figure 7–4 Perform the system shutdown. – Power down the unit. –...
Front Bezel, Continued Figure 7–4 Removing the Front Bezel L J - 0 1 7 7 6 - T I 0 Front Bezel To install the front bezel, reverse the removal steps. Replacement 7–9...
Side Panels Side Panel NOTE Before the system is powered down, have the system Removal manager perform a system shutdown if needed. To remove either side panel: Step Action Refer to Figure 7–5 Perform the system shutdown. – Power down the unit. –...
Side Panels, Continued Figure 7–5 Removing the Side Panel MLO-007505 L J - 0 1 7 8 4 - T I 0 Side Panel To install the side panel, reverse the removal steps. Replacement 7–11...
Rear Bezel Rear Bezel NOTE Before the system is powered down, have the system Removal manager perform a system shutdown if needed. To remove the rear bezel: Step Action Refer to Figure 7–6 Perform the system shutdown. – Power down the unit. –...
Rear Bezel, Continued Figure 7–6 Removing the Rear Bezel L J - 0 1 7 9 2 - T I 0 Rear Bezel To install the rear bezel, reverse the removal steps. Replacement 7–13...
Audio Module Assembly Audio Module NOTE Before the system is powered down, have the system Removal manager perform a system shutdown if needed. To remove a failed or damaged audio module assembly: Step Action Refer to Figure 7–7 Perform the system shutdown. –...
Lights and Switch Module LSM Removal NOTE Before the system is powered down, have the system manager perform a system shutdown if needed. To remove a failed or damaged lights and switch module (LSM): Step Action Refer to Figure 7–8 Perform the system shutdown.
Lights and Switch Module, Continued Figure 7–8 Removing the LSM Module L J - 0 1 6 6 7 - TI 0 Lights and To install the LSM module, reverse the removal steps. Switch Module Replacement 7–17...
Power Supply Power Supply NOTE Before the system is powered down, have the system Removal manager perform a system shutdown if needed. To remove a failed or damaged power supply: Step Action Refer to Figure Perform the system shutdown. – Power down the unit.
Power Supply, Continued Figure 7–9 shows the power supply cabling for the DEC 3000 Model 500X AXP system. Figure 7–9 Power Supply Cabling Regulator Module LJ-02938-TI0 Continued on next page 7–19...
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Power Supply, Continued Figure 7–10 Removing the Power Supply L J - 0 2 9 3 0 - T I 0 Continued on next page 7–20...
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Power Supply, Continued Part Numbers Description Part Number Quantity Top cover 70–30266–01 Side panels 70–29563–01 Power cable 17–03395–01 Mounting screws – Power supply H7883–YA To install the power supply, reverse the removal steps. Power Supply Replacement 7–21...
RZ xx Disk Drives This section describes how to remove the following RZ disk drives: Overview RZ24L-E RZ25-E RZ26-E RZ xx Drive NOTE Before the system is powered down, have the system Removal manager perform a system shutdown if needed. To remove a failed or damaged RZxx disk: Step Action...
RZ xx Disk Drives, Continued Figure 7–11 shows the removal of an RZxx disk drive from the DEC 3000 Model 500X AXP system. Figure 7–11 Removing an RZ xx Drive MLO-007558 L J - 0 1 7 8 7 - T I 0 Continued on next page 7–23...
RZ xx Disk Drives, Continued Figure 7–12 shows the default SCSI ID settings for disk drives in the DEC 3000 Model 500X AXP system. Figure 7–12 Default SCSI ID Settings S C S I I D = 2 S C S I I D = 3 S C S I I D = 1 S C S I I D = 0 LJ -02 9 3 7 -TI0...
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RZ xx Disk Drives, Continued Part Numbers Description Part Number Quantity Top cover 70–30266–01 Right side panel 70–29563–01 Disk drive RZ24L–E Up to 4 drives Disk drive RZ25–E Up to 4 drives Disk drive RZ26–E Up to 4 drives RZ xx Disk To install an RZxx disk drive, reverse the removal steps.
TURBOchannel Module TURBOchannel NOTE Before the system is powered down, have the system Module manager perform a system shutdown if needed. Removal To remove a failed or damaged TURBOchannel module: Step Action Refer to Figure 7–13 Perform the system shutdown. –...
TURBOchannel Module, Continued Figure 7–14 Replacing a Slot Plate MLO-008578 Continued on next page 7–28...
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TURBOchannel Module, Continued Part Numbers Description Part Number Quantity Top cover 70–30266–01 Right side panel 70–29563–01 Left side panel 70–29563–01 TURBOchannel xx–xxxxx–xx Up to 5 module Bulkhead assembly, 74–41143–05 blank Sem screw 90–00049–01 See the DEC 3000 Model 500X AXP Options Installation Guide. To install a TURBOchannel module, reverse the removal steps: TURBOchannel Module...
Regulator Module Regulator NOTE Before the system is powered down, have the system Module manager perform a system shutdown if needed. Removal To remove a failed or damaged regulator module: Step Action Refer to Figure 7–15 Perform the system shutdown. –...
Regulator Module, Continued Figure 7–15 Removing the Regulator Module L J - 0 2 9 4 3 - T I 0 Continued on next page 7–31...
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Regulator Module, Continued Part Numbers Description Part Number Quantity Top cover 70–30266–01 Right side panel 70–29563–01 Regulator module 54–23128–01 Regulator module 17–03814–01 cable Regulator module 17–03815–01 cable Regulator module 17–03816–01 cable Regulator module 17–03817–01 cable Regulator module 17–03320–02 cable Slot screw 12–30934–01 See Appendix D for additional information Regulator...
I/O Module I/O Module NOTE Before the system is powered down, have the system Removal manager perform a system shutdown if needed. To remove a failed or damaged I/O module: Step Action Refer to Figure Perform the system shutdown. – Power down the unit.
I/O Module, Continued Figure 7–17 Removing the I/O Module (Side View) R e d u c e d 2 5 / 7 3 L J - 0 2 9 4 1 - T I 0 Continued on next page 7–35...
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I/O Module, Continued Part Numbers Description Part Number Quantity Top cover 70–30266–01 Right side panel 70–29563–01 TURBOchannel xx–xxxxx–xx Up to 5 modules Removable rivets 12–36064–01 Regulator module 54–23128–01 I/O module 54–21147–01 See the DEC 3000 Model 500X AXP Options Installation Guide. Before installing the new I/O module, ensure that I/O Module Replacement...
System Fans System Fan NOTE Before the system is powered down, have the system Removal manager perform a system shutdown if needed. There are three system fans on the bottom of the unit. To remove a failed or damaged system fan: Step Action Refer to Figure 7–19...
System Fans, Continued Figure 7–19 Removing a System Fan (Bottom) F r o n t R e a r L J - 0 2 9 8 3 - T I 0 Continued on next page 7–39...
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System Fans, Continued Part Number Description Part Number Quantity Fan assembly 12–23609–12 To install the system fan, reverse the removal steps. Replacement 7–40...
Impingement Fan Impingement NOTE Before the system is powered down, have the system Fan Removal manager perform a system shutdown if needed. To remove a failed or damaged impingement fan: Step Action Refer to Figure 7–20 Perform the system shutdown. –...
Impingement Fan, Continued Figure 7–20 Removing the Impingement Fan L J - 0 2 9 3 4 - T I 0 Continued on next page 7–42...
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Impingement Fan, Continued Part Numbers Description Part Number Quantity Top cover 70–30266–01 Left Side panel 70–29563–01 Fan bracket assembly 70–30888–01 Impingement To install the impingement fan assembly, reverse the removal steps. Replacement 7–43...
Memory Motherboard Memory NOTE Before the system is powered down, have the system Motherboard manager perform a system shutdown if needed. Removal To remove a failed or damaged memory motherboard (MMB): Step Action Refer to Figure 7–21 Perform the system shutdown. –...
Memory Motherboard, Continued Figure 7–21 Removing a Memory Motherboard LJ-02933-TI0 Continued on next page 7–45...
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Memory Motherboard, Continued Part Numbers Description Part Number Quantity Top cover 70–30266–01 Left side panel 70–29563–01 Memory motherboard 54–21141–01 Memory To install the memory motherboard, reverse the removal steps. Motherboard Replacement 7–46...
Memory Module Memory NOTE Before the system is powered down, have the system Module manager perform a system shutdown if needed. Removal To remove a failed or damaged memory module: Step Action Refer to Figure 7–22 Perform the system shutdown. –...
Memory Module, Continued Figure 7–22 Memory Module Removal and Replacement L J - 0 1 7 7 8 - T I 0 Continued on next page 7–48...
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Memory Module, Continued Part Numbers Description Part Number Quantity Left side panel 70–29563–01 Memory motherboard 54–21141–01 4 MB memory module 54–21139–CA – 8 MB memory module 54–21139–DA – Memory To replace a memory module, perform the following steps: Module Replacement Step Action Refer to Figure 7–22...
System Module System Module NOTE Before the system is powered down, have the system Removal manager perform a system shutdown if needed. To remove a failed or damaged system module: Step Action Refer to Figure Perform the system shutdown. – Power down the unit.
System Module, Continued Figure 7–23 shows the system module power connections for the DEC 3000 Model 500X AXP system. Figure 7–23 System Module Power Connections Regulator Module LJ-02942-TI0 Continued on next page 7–51...
System Module, Continued Figure 7–24 shows the TURBOchannel connections for the DEC 3000 Model 500X AXP system. Figure 7–24 TURBOchannel Connections ISDN LJ-02141-TI0 Continued on next page 7–52...
System Module, Continued Figure 7–25 Removing the System Module LJ-02932-TI0 Continued on next page 7–53...
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System Module, Continued Part Numbers Description Part Number Quantity Top cover 70–30266–01 Right side panel 70–29563–01 Left side panel 70–29563–01 TURBOchannel xx–xxxxx–xx Up to 3 Memory motherboard 54–21141–01 (MMB) Recessed screw 90–06039–02 Sem screw 90–00049–01 System module 54–21149–03 Fan bracket assembly 70–30888–01 See the DEC 3000 Model 500X AXP Options Installation Guide To install the system module, reverse the removal steps.
System Module, Continued Figure 7–26 shows the locations of the jumpers on the system module. Figure 7–26 System Module Jumpers Locations L J - 0 2 2 7 2 - T I 0 Continued on next page 7–55...
System Module, Continued Table 7–3 describes the system module jumpers. Table 7–3 System Module Jumper Locations Default Location Description Comments Setting Serial ROM – – Regulator sense cable Must be Installed. installed. Serial ROM jumpers Jumper location Installed. 0 only. 200 MHz jumper Must be Enabled.
System and Power Cable Routing Figure 7–27 shows cable connections between modules and disk Internal Cable Routing drives in the DEC 3000 Model 500X AXP system. Figure 7–27 Internal Cabling L S M M o d u l e Fi x e d D i s k F i x e d D i s k A u d i o M o d u l e...
System and Power Cable Routing , Continued Power Cable Figure 7–28 shows power connections between the power supply, Routing disk drives, the system module, and the regulator module. Figure 7–28 Power Cabling F i xe d D i sk F i x e d D i s k R e m o v a b l e Me d i a F i xe d D i sk P o w e r S u p p l y...
Appendix A Upgrading Firmware Overview Model 500/500S For information on the following topics, see Appendix A in DEC Guide 3000 Model 500/500S AXP Service Information: Upgrading Firmware, Using a CD-ROM Creating a Bootable Disk Over the Network A–1...
Appendix B Monitor Alignment Diagnostics Overview Model 500/500S For information on the following topics, see Appendix B in DEC Guide 3000 Model 500/500S AXP Service Information: Monitor Alignment Diagnostics B–1...
Appendix C LED Codes and Error/Status Messages Overview For information on LED codes and error/status messages, Model 500/500S Guide see Appendix C in DEC 3000 Model 500/500S AXP Service Information. That appendix covers the following topics: LED Codes Console Error Messages Console Halt Messages Diagnostic Error Codes: —...
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Overview, Continued — MEMORY — MIPS Emulator C–2...
Appendix D Recommended Spares List Recommend Spares List Spares List Table D–1 lists the recommended spare parts for the DEC 3000 Model 500X AXP system. Table D–1 Recommended Spares List Part Number Description Comment 54–21139–CA 4 MB memory module Half-populated module 54–21139–DA 8 MB memory module Fully populated module...
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Recommend Spares List, Continued Table D–1 (Continued) Recommended Spares List Part Number Description Comment 12–22196–01 Ethernet thickwire loopback 12–30552–01 SCSI terminator 12–30934–01 Slot screws 12–36064–01 Removable rivets Used on modules 17–03314–01 Removable media tray SCSI data cable 17–03315–01 Internal SCSI data cable 17–03316–01 Internal power cable...
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Recommend Spares List, Continued Table D–1 (Continued) Recommended Spares List Part Number Description Comment 90–00049–01 Sem screw 90–06039-02 Recessed screw D–4...
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