PA-RISC LED codes
Overview
Many 32-bit and early 64-bit PA-RISC computers have status LEDs on the system front to indicate system status and errors during power-up self-tests. Newer 64-bit systems have LCDs for this purpose.
Systems with 9 LEDs
HP 9000 705 and 710, 715/33,50,75, 715/64,80,100 and 725 have 9 LEDs on the front:
| 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
|---|---|---|---|---|---|---|---|---|
| A | A | A | A | A | A | A | A | G |
0 is the Power LED, it indicates that the system is powered up. 4 is the heartbeat: if the system is running correctly, it flashes periodically.
Systems with 10 LEDs
HP 9000 720, 730, 750 and 735, 755 workstations have 10 status LEDs on the front:
| 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | 0 |
|---|---|---|---|---|---|---|---|---|---|
| G | A | A | A | A | A | A | A | A | G |
The difference is LED number 9, the Service LED, which indicates whether the machine was
booted in Service mode
.
On HP 9000 755 workstations, the LEDs are arranged from top to bottom, starting with LED 0, the Power LED.
Systems with 5 LEDs
HP Visualize workstations with LEDs like B-Class or C-Class have 5 LEDs: one Power LED and four System LEDs.
HP 9000 712
HP 9000 712 workstations only display two possible error messages on the single LED above the power button:
- 3/4-second flash pattern: CPU board defective
Three quick flashes, pause, three quick flashes
-pattern: graphics hardware problem
HP 9000 715 (Scorpio)
These codes apply to HP 9000 715/33, 50, 75 workstations and might be applicable to other HP 9000 workstations as well. Taken from the Model 715 Owner’s Guide
| 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | Error Message | Solution |
|---|---|---|---|---|---|---|---|---|---|
| _ | _ | _ | # | / | / | / | / | CPU/FPU error | Probably replace mainboard/CPU |
| _ | _ | # | _ | / | / | / | / | CPU/FPU error | Probably replace mainboard/CPU |
| _ | _ | # | # | / | / | / | / | CPU/Motherboard error | Probably replace mainboard/CPU |
| _ | # | _ | _ | / | / | / | / | CPU/FPU error | Probably replace mainboard/CPU |
| _ | # | _ | _ | # | _ | _ | # | FPU test failure | Reboot or replace CPU card |
| _ | # | _ | _ | # | _ | # | _ | FPU test failure | Reboot or replace CPU card |
| _ | # | _ | _ | # | _ | # | / | FPU test failure | Reboot or replace CPU card |
| _ | # | _ | # | _ | _ | _ | # | EISA interface error | Remove EISA cards and backplane, clean, and reinstall in the system. Replace hardware. |
| _ | # | _ | # | _ | _ | # | _ | EISA interface error | Clean EISA cards and backplane. Replace. |
| _ | # | _ | # | _ | _ | # | # | EISA interface error | Clean EISA cards and backplane. Replace. |
| _ | # | _ | # | _ | # | _ | _ | EISA interface error | Clean EISA cards and backplane. Replace. |
| _ | # | _ | # | _ | # | _ | # | EISA interface error | Clean EISA cards and backplane. Replace. |
| _ | # | _ | # | # | # | # | # | PDC ROM checksum error | you are lost |
| _ | # | # | _ | _ | # | # | # | Memory pair 0, Slot B error | Pull out module in question, clean. Replace. |
| _ | # | # | _ | _ | # | # | _ | Memory pair 0, Slot A error | Pull out module in question, clean. Replace. |
| _ | # | # | _ | _ | # | _ | # | Memory pair 1, Slot B error | Pull out module in question, clean. Replace. |
| _ | # | # | _ | _ | # | _ | _ | Memory pair 1, Slot A error | Pull out module in question, clean. Replace. |
| _ | # | # | _ | _ | _ | # | # | Memory pair 2, Slot B error | Pull out module in question, clean. Replace. |
| _ | # | # | _ | _ | _ | # | _ | Memory pair 2, Slot A error | Pull out module in question, clean. Replace. |
| _ | # | # | _ | _ | _ | _ | # | Memory pair 3, Slot B error | Pull out module in question, clean. Replace. |
| _ | # | # | _ | _ | _ | _ | _ | Memory pair 3, Slot A error | Pull out module in question, clean. Replace. |
| _ | # | # | # | # | # | _ | # | No memory found | Install memory |
| # | _ | _ | _ | _ | _ | _ | _ | Unknown I/O device | Pull out all unneccessary devices and reboot |
| # | _ | _ | _ | _ | _ | _ | # | Error while trying to boot from SCSI device | Check SCSI cabling, termination and drives |
| _ | # | _ | _ | _ | _ | _ | # | Error while trying to boot from LAN | Check network cabling |
| # | _ | _ | _ | _ | _ | _ | # | Error trying to access Console Keyboard | Check HIL cabling, keyboard |
| # | _ | _ | _ | _ | # | _ | _ | Error while trying to access Console on COM1 | Check cable and terminal [settings] |
| # | _ | _ | _ | _ | # | _ | # | Error while trying to access Console on COM2 | Check cable and terminal [settings] |
| # | _ | _ | _ | _ | # | # | _ | Error while trying to access Parallel port | Bad luck |
| # | _ | _ | _ | _ | # | # | # | Error on SGC Slot 1 | Clean card, maybe try another one |
| # | _ | _ | _ | # | _ | _ | # | Unable to initialize EISA | Remove EISA card, backplane, clean both, reseat |
| # | _ | # | # | _ | _ | _ | # | Error when reading from EEPROM | Switch off, pull cord, restart |
| # | _ | # | # | _ | _ | # | _ | Unexepected interrupt during PDC execution | Switch off, pull cord, restart |
| # | _ | # | # | _ | _ | # | # | No working console found | Attach one |
| # | _ | # | # | _ | # | _ | _ | HPMC handling initiated | ? |
| # | _ | # | # | _ | # | _ | # | HPMC due to cache error | Switch off and reboot, if problem persists cache is probably defect. Replace CPU or motherboard. |
| # | _ | # | # | _ | # | # | _ | HPMC due to memory error. | Switch off and reboot. Reseat/replace memory. |
| # | _ | # | # | _ | # | # | # | HPMC due to bus error. | Switch off and reboot, if problem persists core is probably defect. Replace CPU or motherboard. |
| # | _ | # | # | # | _ | _ | _ | Nested HPMC occured. | Switch off and reboot. (very bad) |
| # | _ | # | # | # | _ | _ | # | Error while writing to EEPROM. | ? |
| # | _ | # | # | # | _ | # | _ | Unable to determine valid Processor Speed. | ? |
| # | _ | # | # | # | _ | # | # | ROM Checksum error. | ? |
| # | _ | # | # | # | # | _ | # | Illegal Processor Speed/Clock Ratio sensing. | ? |
| # | _ | # | # | # | # | # | # | Bad Memory Hardware. | ? |
HP 9000 715 (Mirage)
These codes apply to HP 9000 715/64, 80 and 100 and possibly other 700 workstations, including the HP 9000 725. Taken from the Model 715 Owner’s Guide,
| 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | Error Message | Solution |
|---|---|---|---|---|---|---|---|---|---|
| # | # | CPU Error | ? | ||||||
| # | # | # | Fatal Error | ? | |||||
| # | # | RAM Test Error | ? | ||||||
| # | # | Cache Error | ? | ||||||
| # | # | FP Coprocessor Error | ? | ||||||
| # | # | Fatal Coprocessor Error | ? | ||||||
| # | # | I/O Device Error | ? | ||||||
| # | # | # | ROM Checksum Error | ? | |||||
| # | # | # | HPMC Error | Switch Machine off, reboot. Could indicate failure of a core component | |||||
| # | # | HPMC due to Cache Error | Switch Machine off, reboot. Indicates drastic failure in cache subsystem. If possible, replace cache/CPU module | ||||||
| # | # | # | HPMC due to Bus Error | Switch Machine off, reboot. | |||||
| # | # | # | # | HPMC due to Memory Error | Switch Machine off, take the RAM out. Figure out, which module is broken. | ||||
| # | # | # | # | Console Initialization Error | Look if keyboard/serial console cable is attached properly. | ||||
| # | # | # | No working console found. | " | |||||
| # | # | # | # | No bootable device found. | Install one, check PATHs | ||||
| # | # | # | # | InitializationError | ? |
720/730/750 (Snakes)
These codes apply to HP 9000 720, 730 and 750. Taken from the Owner’s Guide,
| 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | Error Message | Solution |
|---|---|---|---|---|---|---|---|---|---|
| # | / | / | / | / | CPU Error | Replace processor board | |||
| # | / | / | / | / | CPU Error | Replace processor board | |||
| # | # | / | / | / | / | CPU Error | Replace processor board | ||
| # | / | / | / | / | CPU Error | Replace processor board | |||
| # | # | RAM Error | Replace SIMM card in slot A1 | ||||||
| # | # | # | RAM Error | Replace SIMM card in slot A2 | |||||
| # | # | # | RAM Error | Replace SIMM card in slot B1 | |||||
| # | # | # | # | RAM Error | Replace SIMM card in slot B2 | ||||
| # | # | # | RAM Error | Replace SIMM card in slot C1 | |||||
| # | # | # | # | RAM Error | Replace SIMM card in slot C2 | ||||
| # | # | # | # | RAM Error | Replace SIMM card in slot D1 | ||||
| # | # | # | # | # | RAM Error | Replace SIMM card in slot D2 | |||
| # | # | # | # | I/O Error | Replace I/O Card | ||||
| # | # | # | # | # | CPU Error | Replace processor board | |||
| # | # | # | # | # | Error | Replace processor board or on SIMM | |||
| # | # | # | # | # | # | Error | Replace processor board or I/O card | ||
| # | # | # | # | / | Error | Replace processor board or I/O card |
HP 9000 735/755
These codes apply to HP 9000 735 and 755. From the Service manual, supplied by Greg Fruth.
The codes mean different things depending on what state the machine is in. There are codes for the Selftest, the PDC (Processor Dependent Code), the ISL (Initial System Loader) and HP-UX (that’s the order in which they run).
# - LED is on or flashing – - means LED is off.
############################################################################### Selftest LED Codes ############################################################################### LED # 87654321 FRU Error =============================================================================== ---#---# Processor CPU Diagnose Register Board ---#--#- CPU Basic Functions ---#--## CPU ALU & Branch ---#-#-- CPU Arithmetic Conditions ---#-#-# CPU Bit Operations ---#-##- CPU Arithmetic Side Effects ---#-### CPU Control Registcrs ---##--- CPU External Interrupts ---##--# CPU Shadow Registers ---##-## TLB Initialization --#----# Cache Data Line --#---#- Cache Address Line --#---## Instruction Cache RAM --#--#-- Data Cache RAM --#--#-# Cache Tag Compare --#--##- Cache Errors --#--### Cache Configuration --#-#--- Cache Flush --#-#--# Cache Byte Transaction --#-#-#- Instruction Cache Miss --#-#-## Data Cache Miss --#-##-- Cache Done --##---# Memory Interface EIR --##--#- Memory Interface HPMC --##--## Memory Interface --##-#-- Memory Interface Invalid Address --##-#-# Memory Interface Single Bit Error --##-##- Memory Interface Double Bit Error --##-### Memory Interface Diagnose Register -#-----# Floating Point Registers -#----#- Floating Point Instructions -#----## Floating point Traps -#-#---# EISA EISA Init Interface Controller -#-#--#- EISA ADDR Test -#-#--## ADDR Test Failure -#-#-#-- EISA Pattern Test -#-#-#-# EISA Pattern Test Failure -#-##### RAM CHECKSUM Failure -##----- Memory RAM Slot 5B (J100) Error -##----# RAM Slot 4B (J102) Error -##---#- RAM Slot 3B (J104) Error -##---## RAM Slot 2B (J106) Error -##--#-- RAM Slot 1B (J108) Error -##--#-# RAM Slot 0B (J110) Error -###---- RAM Slot 5A (J101) Error -###---# RAM Slot 4A (J103) Error -###--#- RAM Slot 3A (J105) Error -###--## RAM Slot 2A (J107) Error -###-#-- RAM Slot 1A (J109) Error -###-#-# RAM Slot 0A (Jlll) Error -###-### RAM Configuration & Test In Progress -#####-# No RAM Found -######- Non-Destructive RAM Test -####### RAM Configuration & Test #------- Processor Unknown I/O Device Board #------# Single-Ended SCSI Init #-----#- LAN Init #-----## HIL Init #----#-- RS232 Port A Init #----#-# RS232 Port B Init #----##- Parallel Port Init #---#--- SGC Slot 0 Graphics Init #---#--# EISA Card EISA Slot Init #--##--- FDDI Slider FDDI Init Board #--##--# Processor Fast Wide SCSI Init Board ############################################################################### PDC LED Codes ############################################################################### LED # 87654321 Status =============================================================================== #-#----# Destructive Memory Init #-#---#- Non-Destructive Memory Init #-#---## Console Selection #-#--#-- Boot Device Selection #-#--#-# Autoselection Failure to Find Boot Device #-#--##- Launching IPL #-#--### TOC Handler Entered #-#-#--- Branching to OS TOC Handler #-#-#--# Branching to OS HPMC Handler #-#-#-#- EISA Subsystem Init #-#-#-## Setting Up Default EISA Config #-#-##-# At Least One Selftest Failed (Service Mode) #-##---# Error when reading EEPROM #-##--#- Unexpected Interrupt #-##--## No Console Located #-##-#-- HPMC Handling Init #-##-#-# HPMC Due to Cache Error #-##-##- HPMC Due to Memory Error #-##-### HPMC Due to Bus Error #-###--- Nested HPMC Detected #-###--# Error Writing EEPROM #-###-#- Unable to Determine Valid Processor Speed #-####-- Processor Speed Sensing #-####-# Problem Calculating Memory Control Values #-###### Bad Memory Hardware ############################################################################### ISL LED Codes ############################################################################### LED # 87654321 Status =============================================================================== -------- ISL Executing. -------# ISL is Autobooting from the Autoexec file. ------#- ISL Cannot Find Autoexecute file. ------## No Console Found. ISL Autobooting. -----#-# Directory of utilities is too large. -----##- Autoexec File is Inconsistent. ---#--#- Error when reading Autoexec File. ---#--## Error when reading from Console. ---#-#-- Error when writing to Console. ---#-#-# Not an ISL Command or Utility. ---#-##- Utility File Header Inconsistent: Invalid System ID. ---#-### Error when reading Utility File Header. ---##--- Utility Flle Header Inconsistent: Bad Magic Number. ---##--# Utility Would Overlay ISL in Memory. ---##-#- Utility Requires More Memory Than Is Configured. ---##-## Error when reading Utility Into Memory. ---###-- Incorrect Checksum: Reading Utiliy Into Memory. ---###-# System Console Needed. ---####- Internal Inconsistency: Invalid Boot Device Class. --#----# Destination Memory Address of Utility is Invalid. --#---#- Internal Inconsistency pdc_cache entry --#---## Internal Inconsistency: IODC ENTRY_INIT --#--#-- Internal Inconsistency: IODC ENTRY_INIT Console --#--#-# Internal Inconsistency: IODC ENTRY_INIT Boot Device --#--##- Utility File Header Inconsistent: Bad aux_id --#--### Bad Utility File Type ############################################################################### HP-UX Kernel LED Codes ############################################################################### LED # 87654321 Status =============================================================================== ###----- Kernel Loaded and Initialization Begun. ####---# Kernel Has Entered main(). ####--#- Kernel Is About to Configure I/O System. ####-#-- Kernel Is About to Mount Root File System. ####-##- Kernel Is About to Set Up Page-Out Daemon. #####--- Kernel is About to Start the "INIT" Process. -------- Shutdown In Process. -----#-- TOC Dump. ---#---- HPMC Dump. --#----# Operating System Executing with Load Indicator X.
Once the machine is into HP-UX, the top 4 amber LEDs (1-4) assume the meanings given by the hieroglyphics next to the LEDs themselves (network in/out, net receive, SCSI, heartbeat). The bottom 4 LEDs (5-8) show the system load factor.
HP Visualize B-Class
These codes apply to HP Visualize B132L, B160L and B180L. From the Owner’s Guide.
| LED value | RS-232 range | Description |
|---|---|---|
| _ _ _ # | 7401 | No memory found FAULT. |
| _ _ # # | 7000-7F00 | Memory Error FAULT. (sys console indicates which board) |
| _ # _ _ | 1030-4099 | Processor board FAULT. |
| _ # _ # | 5000-500F, 8000-8FFF, CD00-CDFF | I/O System FAULT |
| _ # # _ | 8500, 8501, 8C00-8CFF | Backplane FAULT (incl. PCI). |
| _ # # # # _ _ _ |
Any | INITIALIZATION and TESTING. (alternating 1000, 0111,…) |
| # _ _ # | Any not in this table | Unknown FAULT. |
| # _ # _ | CBF0-CBFF, 1001 | HPMC FAULT (very bad). |
| # # _ # | A088-A0FF | No console/IPL error FAULT. |
| # # # # | If remains for longer than 1s after power-on: processor board FAULT. |
HP Visualize C-Class
These codes apply to HP Visualize C-Class workstations with LED front panels.
| LED value | RS-232 range | Description |
|---|---|---|
| _ _ _ # | 7500 | No memory found FAULT. |
| _ _ # _ | 7501, 7502 | Not enough memory found FAULT. |
| _ _ # # | 7000-7D0A | Processor Board/Memory Error FAULT. (sys console indicates which board) |
| _ # _ _ | 1030-4071 | Processor board FAULT. |
| _ # _ # | 5000-500F, 8000-8FFF, CD00-CDFF | I/O System FAULT |
| _ # # _ | CD1E, CDEF, CDD0 | Backplane FAULT (incl. PCI). |
| _ # # # # _ _ _ |
Any | INITIALIZATION and TESTING. (alternating 1000, 0111,…) |
| # _ _ # | Any not in this table | Unknown FAULT. |
| # _ # _ | CBF0-CBFF, 1001 | HPMC FAULT (very bad). |
| # # _ # | A000-A0C0 | No console/IPL error FAULT. |
| # # # # | If remains for longer than 1s after power-on: processor board FAULT. |