System Board (0lxx)
101 Interrupt failure (unexpected interrupt)
102 BIOS ROM cheeksum error (PC, XT); timer error (AT, MCA)
103 BASIC ROM cheeksum error (PC, XT); timer interrupt error (AT, MCA)
104 Interrupt controller error (PC, XT); protected-mode error (AT, MCA)
105 Timer failure (PC, XT); keyboard controller failure (MCA)
106 System board converting logic test failure
107 System board adapter card or math coprocessor fault; hot NMI test failed (MCA)
108 System board timer bus failure
109 DAM test memory select failure
110 PS/2 system board memory problem (ISA); system board parity cheek error (MCA)
111 PS/2 adapter memory problem (ISA); memory adapter parity cheek error (MCA)
112 PS/2 watchdog time-out error
113 PS/2 DMA arbitration time-out error
114 PS/2 external ROM cheeksum error
115 Cache parity error, BIOS ROM cheeksum error, or DMA error
116 System board port R/W error
118 System board L2 cache error
119 2.88-Mbyte floppy drive installed but not supported by floppy disk controller
120 CPU self-test error
121 Unexpected hardware interrupt occurred
131 Cassette wrap test (PC)
132 DMA extended registers error
133 DMA verify logic error
134 DMA arbitration logic error
151 Battery, real-time clock, or CMOS RAM failure
152 Real-time clock or CMOS RAM failure
160 PS/2 system board ID not recognized
161 CMOS chip lost power-battery dead
162 CMOS cheeksum or CRC error
163 CMOS error-time and date not set (the clock not updating)
164 Memory size error-CMOS data does not match system memory found
165 PS/2 adapter ID mismatch
166 PS/2 adapter time-out-card busy
167 PS/2 system clock not updating
168 Math coprocessor error in the CMOS configuratimoinsmatch
169 System board and processor card configuration
170 ASCII setup conflict error
171 Rolling bit test failure on CMOS shutdown byte
172 Rolling bit test failure on NVRAM diagnostic byte
173 Bad CMOS cheeksum
174 Bad system configuration
175 Bad EEPROM CRC
177 Bad password CRC
178 Bad EEPROM
179 NVRAM error log full
180x Subaddress data error in slot x
181 Unsupported configuration
182 Password switch is not in the writing position
183 System halted-password required
184 Bad power-on password
185 Bad startup sequence
186 Password protection hardware error
187 Serial number error
188 Bad EEPROM cheeksuin
189 Too many incorrect password attempts
191 Cache controller test failure (82385)
194 System board memory error
199 User-indicated device list not correct
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System Memory (02xx)
201 Memory error (physical location will probably be displayed)
202 Memory address line 0-15 error
203 Memory address line 16-23 error; line 16-31 error (MCA)
204 Memory remapped to compensate for error (PS/2)
205 Error in first 128 kbytes (PS/2 ISA) of RAM
207 BIOS ROM failure
210 system board memory parity error
211 Error in first 64 kbytes of RAM (MCA)
212 Watchdog timer error
213 DMA bus arbitration time-out
215 Memory address error; 64 kbytes on daughter/SIP 2 failed (70)
216 Memory address error; 64 kbytes on daughter/SIP 1 failed (70)
221 ROM to RAM copy (shadowing) failed (MCA)
225 Wrong speed memory on system board (MCA)
230 Memory on motherboard and adapter board overlaps
231 Noncontiguous adapter memory installed
235 Stuck data line on memory module
241 Memory module 2 failed
251 Memory module 3 failed
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Keyboard (03xx)
301 Keyboard did not respond correctly (stuck key detected)
302 Keyboard locked (AT, models 25, 30)
303 Keyboard/system board interface error-keyboard controller fault
304 Keyboard or system unit error (keyboard clock stuck high)
305 Keyboard fuse failed on system board (PS/2 50, 60, 80) or +5volt error (PS/2 70)
306 Unsupported keyboard attached
341 Keyboard error
342 Keyboard cable error
343 Enhancement card or cable error
365 Keyboard failure
366 Interface cable failure
367 Enhancement card or cable failure
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Monochrome Display Adapter (04xx)
401 Memory, horizontal sync frequency, or vertical sync test failure
408 User-indicated display attribute failure
416 User-indicated character set failure
424 User-indicated 8OX25 mode failure
432 MDA card parallel-port test failure
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Color Graphics Adapter (05xx)
501 Memory, horizontal sync frequency, or vertical sync test failure
503 CGA adapter controller failure
508 User-indicated display attribute failure
516 User-indicated character set failure
524 User-indicated 80 X 25 mode failure
532 User-indicated 40 X 25 mode failure
540 User-indicated 320 >< 200 graphics mode failure
548 User-indicated 640 X200 graphics mode failure
556 Light pen test failed
564 User-indicated screen paging test failed
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Floppy Drives and Adapters (06xx)
601 General diskette or adapter test failure
602 Diskette boot sector is not valid
603 Diskette size error
604 Media sense error
605 Diskette drive locked
606 Diskette verify test failure
607 Write-protect error
608 Drive command error
610 Diskette initialization failure
611 Drive time-out error
612 NEC drive controller IC error
613 Floppy system DMA error
614 Floppy system DMA boundary overrun error
615 Drive index timing error
616 Drive speed error
621 Drive seek error
622 Drive CRC error
623 Sector not found error
624 Disk address mark error
625 NEC drive controller IC seek error
626 Diskette data compare error
627 Diskette change line error
628 Diskette removed from drive
630 Drive A: index stuck high
631 Drive A: index stuck low
632 Drive A: track 0 stuck off
633 Drive A: track 0 stuck on
640 Drive B: index stuck high
641 Drive B: index stuck low
642 Drive B: track 0 stuck off
643 Drive B: track 0 stuck on
645 No index pulse
646 Drive track 00 detection failed
647 No transitions on Read Data line
648 Format test failed
649 Incorrect media type in drive
650 Drive speed incorrect
651 Format failure
652 Verify failure
653 Read failure
654 Write failure
655 Drive controller error
656 Drive mechanism failure
657 Write-protect stuck in "protected" state
658 Change line stuck in "changed" state
659 Write-protect stuck in "unprotected" state
660 Change line stuck in "unchanged" state
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Math Coprocessor (07xx)
701 MCP presence or initialization error
702 Exception errors test failure
703 Rounding test failure
704 Arithmetic test 1 failure
705 Arithmetic test 2 failure
706 Arithmetic test 3 (80387 only)
707 Combination test failure
708 Integer load/store test failure
709 Equivalent expressions errors
710 Exception (interrupt) errors
711 Save state errors
712 Protected-mode test failure
713 Voltage/temperature sensitivity test failure
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Parallel Printer Adapter (09xx)
901 Data register latch error
902 Control register latch error
903 Register address decode error
904 Address decode error
910 Status line wrap connector error
911 Status line bit 8 wrap error
912 Status line bit 7 wrap error
913 Status line bit 6 wrap error
914 Status line bit 5 wrap error
915 Status line bit 4 wrap error
916 Printer adapter interrupt wrap error
917 Unexpected printer adapter interrupt
92x Feature register error
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Alternative Printer Adapter (10xx)
1001 Data register latch error
1002 Control register latch error
1003 Register address decode error
1004 Address decode error
1010 Status line wrap connector error
1011 Status line bit 8 wrap error
1012 Status line bit 7 wrap error
1013 Status line bit 6 wrap error
1014 Status line bit 5 wrap error
1015 Status line bit 4 wrap error
1016 Printer adapter interrupt wrap error
1017 Unexpected printer adapter interrupt
102x Feature register error
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Communication Devices (11xx)
1101 16450/16550 UART error
1102 Card-selected feedback error
1103 Port 102h register test failure
1106 Serial option cannot be shut down
1107 Communications cable or system board error
1108 IRQ3 error
1109 IRQ4 error
1110 16450/16550 chip register failure
1111 UART control line internal wrap test failure
1112 UART control line external wrap test failure
1113 UART transmit error
1114 UART receive error
1115 UART transmit and receive data unequal-receive error
1116 UART interrupt function error
1117 UART baud rate test failure
1118 UART interrupt-driven receive external data wrap test error
1119 UART FIFO bufrer failure
1120 UART interrupt enable register failure: all bits cannot be set
1121 UART interrupt enable register failure: all bits cannot be reset
1122 Interrupt pending-stuck on
1123 Interrupt ID register stuck on
1124 Modem control register failure: all bits cannot be set
1125 Modem control register failure: all bits cannot be reset
1126 Modem status register failure: all bits cannot be set
1127 Modem status register failure: all bits cannot be reset
1128 Interrupt ID error
1129 Cannot force overrun error
1130 No modem status interrupt
1131 Invalid interrupt pending
1132 No data ready
1133 No data available at interrupt
1134 No transmit holding at interrupt
1135 No interrupts
1136 No received line status interrupt
1137 No receive data available
1138 Transmit holding register not empty
1139 No modem status interrupt
1140 Transmit holding register not empty
1141 No interrupts
1142 No IRQ4 interrupt
1143 No IRQ3 interrupt
1144 No data transferred
1145 Maximum baud rate error
1146 Minimum baud rate error
1148 Time-out error
1149 Invalid data returned
1150 Modem status register error
1151 No DSR and delta DSR
1152 No DSR
1153 No delta DSR
1154 Modem status register not clear
1155 No CTS and delta CTS
1156 No CTS
1157 No delta CTS
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Alternative Communications Devices (12xx)
1201 16450/16550 UART error
1202 Card-selected feedback error
1203 Port 102h register test failure
1206 Serial option cannot be shut down
1207 Communications cable or system board error
1208 IRQ3 error
1209 IRQ4 error
1210 16450/16550 chip register failure
1211 UART control line internal wrap test failure
1212 UART control line external wrap test failure
1213 UART transmit error
1214 UART receive error
1215 UART transmit and receive data unequal-receive error
1216 UART interrupt function error
1217 UART baud rate test failure
1218 UART interrupt-driven receive external data wrap test error
1219 UART FIFO buffer failure
1220 UART interrupt enable register failure: all bits cannot be set
1221 UART interrupt enable register failure: all bits cannot be reset
1222 Interrupt pending-stuck on
1223 Interrupt ID register stuck on
1224 Modem control register failure: all bits cannot be reset
1225 Modem control register failure: all bits cannot be reset
1226 Modem status register failure: all bits cannot be set
1227 Modem status register failure: all bits cannot be reset
1228 Interrupt ID error
1229 Cannot force overrun error
1230 No modem status interrupt
1231 Invalid interrupt pending
1232 No data ready
1233 No data available at interrupt
1234 No transmit holding at interrupt
1235 No interrupts
1236 No received line status interrupt
1237 No receive data available
1238 Transmit holding register not empty
1239 No modem status interrupt
1240 Transmit holding register not empty
1241 No interrupts
1242 No IRQ4 interrupt
1243 No IRQ3 interrupt
1244 No data transferred
1245 Maximum baud rate error
1246 Minimum baud rate error
1248 'Eme-out error
1249 Invalid data returned
1250 Modem status register error
1251 No DSR and delta DSR
1252 No DSR
1253 No delta DSR
1254 Modem status register not clear
1255 No CTS and delta CTS
1256 No CTS
1257 No delta CTS
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Game Port Adapters (13xx)
1301 Game port adapter test failure
1302 Joystick test failure
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Matrix Printers (14xx)
1401 Printer test failure
1402 Printer not ready, not on-line, or out of paper
1403 Printer "no paper" error
1404 Matrix printer test failure; system board time-out
1405 Parallel adapter failure
1406 Printer presence test failed
1501 SDLC adapter test failure
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SDLC Communications Adapter (15xx)
1510 8255 port B failure
1511 8255 port A failure
1512 8255 port C failure
1513 8253 timer 1 did not reach terminal count
1514 8253 timer 1 output stuck on
1515 8253 timer 0 did not reach terminal count
1516 8253 timer 0 output stuck on
1517 8253 timer 2 did not reach terminal count
1518 8253 timer 2 output stuck on
1519 8273 port B error
1520 8273 port A error
1521 8273 command/read time-out error
1522 Interrupt level 4 error
1523 Ring Indicate stuck on
1524 Receive clock stuck on
1525 Transmit clock stuck on
1526 Test Indicate stuck on
1527 Ring Indicate not on
1528 Receive clock not on
1529 Transmit clock not on
1530 Test Indicate not on
1531 Data Set Ready not on
1532 Carrier Detect not on
1533 Clear-to-Send not on
1534 Data Set Ready stuck on
1535 Carrier Detect stuck on
1536 Clear-to-Send stuck on
1537 Interrupt level 3 failure
1538 Receive interrupt results error
1539 Wrap data compare error
1540 DMA channel 1 transmit error
1541 DMA channel 1 receive error
1542 8273 error-checking or status-reporting error
1547 Stray interrupt level 4 error
1548 Stray interrupt level 3 error
1549 Interrupt presentation sequence time-out
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DSEA Units (16xx)
1604 DSEA or twinaxial network adapter
1608 DSEA or twinaxial network adapter
1624 - 1658 DSEA system error
1662 DSEA interrupt level error
1664 DSEA system error
1668 DSEA interrupt level error
1669 DSEA diagnostics error
1674 DSEA diagnostics error
1684 DSEA device address error
1688 DSEA device address error
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Hard Drives and Adapters (17xx)
1701 Fixed disk or adapter general error
1702 Drive and controller time-out error
1703 Drive seek error
1704 Drive controller failed
1705 Drive sector not found error
1706 Write fault error
1707 Drive track 00 error
1708 Head select error
1709 Bad ECC returned
1710 Sector buffer overrun
1711 Bad address mark
1712 Internal controller diagnostics failure
1713 Data compare error
1714 Drive not ready
1715 Track 00 indicator failure
1716 Diagnostics cylinder errors
1717 Surface read errors
1718 Hard drive type error
1720 Bad diagnostics cylinder
1726 Data compare error
1730 Drive controller error
1731 Drive controller error
1732 Drive controller error
1733 BIOS undefined error return
1735 Bad command error
1736 Data corrected error
1737 Bad drive track error
1738 Bad sector error
1739 Bad initialization error
1740 Bad sense error
1750 Drive verify error
1751 Drive read error
1752 Drive write error
1753 Drive random read test failure
1754 Drive seek test failure
1755 Drive controller failure
1756 Controller ECC test failure
1757 Controller head select failure
1780 Drive seek failure (drive 0)
1781 Drive seek failure (drive 1)
1782 Hard disk controller failure
1790 Diagnostic cylinder read error (drive 0)
1791 Diagnostic cylinder read error (drive 1)
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I/0 Expansion Unit (18xx)
1801 Expansion unit POST error
1810 Enable/disable failure
1811 Extender card wrap test failure while disabled
1812 High-order address lines failure while disabled
1813 Wait state failure while disabled
1814 Enable/disable could not be set on
1815 Wait state failure while enabled
1816 Extender card wrap test failure while enabled
1817 High-order address lines failure while enabled
isis Disable not functioning
1819 Wait request switch not set correctly
1820 Receiver card wrap test failed
1821 Receiver high-order address lines failure
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Bisynchronous Communications Adapters (20xx)
2001 BSC adapter test failure
2010 8255 port A failure
2011 8255 port B failure
2012 8255 port C failure
2013 8253 timer 1 did not reach terminal count
2014 8253 timer 1 output stuck on
2015 8253 timer 2 did not reach terminal count
2016 8253 timer 2 output stuck on
2017 8251 Data-Set-Ready failed to come on
2018 8251 Clear-to-Send not sensed
2019 8251 Data-Set-Ready stuck on
2020 8251 Clear-to-Send stuck on
2021 8251 hardware reset failure
2022 8251 software reset command failure
2023 8251 software error-reset command failure
2024 8251 transmit-Ready did not come on
2025 8251 Receive-Ready did not come on
2026 8251 could not force overrun error status
2027 Interrupt failure-no timer interrupt
2028 Interrupt failure-replace card or planar board
2029 Interrupt failure-replace card only
2030 Interrupt failure-replace card or planar board
2031 Interrupt failure-replace card only
2033 Ring Indicate signal stuck on
2034 Receive clock stuck on
2035 Transmit clock stuck on
2036 Test Indicate stuck on
2037 Ring Indicate not on
2038 Receive clock not on
2039 Transmit clock not on
2040 Test Indicate not on
2041 Data-Set-Ready stuck on
2042 Carrier Detect not on
2043 Clear-to-Send not on
2044 Data-Set-Ready stuck on
2045 Carrier Detect stuck on
2046 Clear-to-Send stuck on
2047 Unexpected transmit interrupt
2048 Unexpected receive interrupt
2049 Transmit data did not equal receive data
2050 8251 detected overrun error
2051 Lost Data-Set-Ready signal during data wrap
2052 Receive time-out during data wrap
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Alternative Bisynchronous Communications Adapters (2lxx)
2101 BSC adapter test failure
2110 8255 port A failure
2111 8255 port B failure
2112 8255 port C failure
2113 8253 timer 1 did not reach terminal count
2114 8253 timer 1 output stuck on
2115 8253 timer 2 did not reach terminal count
2116 8253 timer 2 output stuck on
2117 8251 Data-Set-Ready failed to come on
2118 8251 Clear-to-Send not sensed
2119 8251 Data-Set-Ready stuck on
2120 8251 Clear-to-Send stuck on
2121 8251 hardware reset failure
2122 8251 software reset command failure
2123 8251 software error-reset command failure
2124 8251 transmit-Ready did not come on
2125 8251 Receive-Ready did not come on
2126 8251 could not force overrun error status
2127 Interrupt failure-no timer interrupt
2128 Interrupt failure-replace card or planar board
2129 Interrupt failure-replace card only
2130 Interrupt failure-replace card or planar board
2131 Interrupt failure-replace card only
2133 Ring Indicate signal stuck on
2134 Receive clock stuck on
2135 Transmit clock stuck on
2136 Test Indicate stuck on
2137 Ring Indicate not on
2138 Receive clock not on
2139 Transmit clock not on
2140 Test Indicate not on
2141 Data-Set-Ready stuck on
2142 Carrier Detect not on
2143 Clear-to-Send not on
2144 Data-Set-Ready stuck on
2145 Carrier Detect stuck on
2146 Clear-to-Send stuck on
2147 Unexpected transmit interrupt
2148 Unexpected receive interrupt
2149 Transmit data did not equal receive data
2150 8251 detected overrun error
2151 Lost Data-Set-Ready signal during data wrap
2152 Receive time-out during data wrap
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Cluster Adapters (22xx)
22xx A cluster adapter error has been encountered
- replace the cluster adapter
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Plasma Monitor Adapter (23xx)
23xx A plasma display fault has been detected
- replace the plasma monitor assembly
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Enhanced Graphics Adapter (24xx)
2401 Video adapter test failure
2402 Video display (monitor) error
2408 User-indicated display attribute test failed
2409 Video display (monitor) error
2410 Video adapter error
2416 User-indicated character set test failed
2424 User-indicated 80 X 25 mode failure
2432 User-indicated 40 X 25 mode failure
2440 User-indicated 320 x 200 graphics mode failure
2448 User-indicated 640 X 200 graphics mode failure
2456 User-indicated light pen test failure
2464 User-indicated screen paging test failure
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Alternative Enhanced Graphics Adapter (25xx)
2501 Video adapter test failure
2502 Video display (monitor) error
2508 User-indicated display attribute test failed
2509 Video display (monitor) error
2510 Video adapter error
2516 User-indicated character set test failed
2524 User-indicated 80 X 25 mode failure
2532 User-indicated 40 X 25 mode failure
2540 User-indicated 320 X 200 graphics mode failure
2548 User-indicated 640 X 200 graphics mode failure
2556 User-indicated light pen test failure
2564 User-indicated screen paging test failure
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PC/370-M Adapter (26xx)
2601 - 2672 370-M (memory) adapter error
2673 - 2680 370-P (processor) adapter error
2681 370-M (memory) adapter error
2682 - 2697 370-P (processor) adapter error
2698 XT or AT/370 diagnostic diskette error
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PC3277 Emulation Adapter (27xx)
2701 3277-EM adapter error
2702 3277-EM adapter error
2703 3277-EM adapter error
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3278/3279 Emulation Adapter (28xx)
28xx An emulation adapter fault has been detectedreplace the adapter
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Color/Graphics Printers (29xx)
29xx A general fault has been detected with the printer or its printer port
- replace the printer or adapter port
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Primary PC Network Adapter (30xx)
3001 Network adapter test failure
3002 ROM checksum test failure
3003 Unit ID PROM test failure
3004 RAM test failure
3005 Host interface controller (HIC) test failure
3006 +/- 12-volt de test failure
3007 Digital loopback test failure
3008 Host-detected HIC failure
3009 Sync signal failure and no-go bit
3010 HIC test OK and no-go bit
3011 Go bit OK but no command 41
3012 Card not present
3013 Digital failure-fall-through
3015 Analog failure
3041 Hot carrier-on other card
3042 Hot carrier-on this card
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Secondary PC Network Adapter (3lxx)
3101 Network adapter test failure
3102 ROM checksum test failure
3103 Unit ID PROM test failure
3104 RAM test failure
3105 Host interface controller (HIC) test failure
3106 +/- 12-volt de test failure
3107 Digital loopback test failure
3108 Host-detected HIC failure
3109 Sync signal failure and no-go bit
3110 HIC test OK and no-go bit
3111 Go bit OK but no command 41
3112 Card not present
3113 Digital failure-fall-through
3115 Analog failure
3141 Hot carrier@n other card
3142 Hot carrier-on this card
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3270 PC/AT Display (32xx)
32xx A fault has been detected in the display system
- replace the display system
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Compact Printer Errors (33xx)
33xx A fault has been detected in the printer or printer adapter
- replace the printer or adapter
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Enhanced DSEA Units (35xx)
3504 Adapter connected to twinaxial cable during off-line test
3508 Workstation address error
3509 Diagnostic program failure; retry on new diskette
3540 Workstation address invalid
3588 Adapter address switch error
3599 Diagnostic program failure; retry on new diskette
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IEEE 488 (GPIB) Adapter (36xx)
3601 Adapter test failure
3602 Write error at serial poll mode register (SPMR)
3603 Adapter addressing problems
3610 Adapter cannot be programmed to listen
3611 Adapter cannot be programmed to talk
3612 Adapter control error
3613 Adapter cannot switch to standby mode
3614 Adapter cannot take control asynchronously
3615 Adapter cannot take control asynchronously
3616 Adapter cannot pass control
3617 Adapter cannot be addressed to listen
3618 Adapter cannot be unaddressed to listen
3619 Adapter cannot be addressed to talk
3620 Adapter cannot be unaddressed to talk
3621 Adapter cannot be addressed to listen with extended addressing
3622 Adapter cannot be unaddressed to listen with extended addressing
3623 Adapter cannot be addressed to talk with extended addressing
3624 Adapter cannot be unaddressed to talk with extended addressing
3625 Adapter cannot write to self
3626 Adapter error-cannot generate handshake signal
3627 Adapter error-cannot detect Device Clear (DCL) message
3628 Adapter error-cannot detect Selected Device Clear (SDC) message
3629 Adapter error-cannot detect end of transfer with EOI signal
3630 Adapter error-cannot detect end of transmission with EOI signal
3631 Adapter cannot detect END with 0-bit EOS
3632 Adapter cannot detect END with 7-bit EOS
3633 Adapter cannot detect Group Execute Trigger (GET)
3634 Mode 3 addressing not functioning
3635 Adapter cannot recognize undefined command
3636 Adapter error-cannot detect REM, REMC, LOK, or LOKC signals
3637 Adapter error-cannot clear REM or LOK signals
3638 Adapter cannot detect service request (SRQ)
3639 Adapter cannot conduct serial poll
3640 Adapter cannot conduct parallel poll
3650 Adapter error-cannot DMA to 7210
3651 Data error on DMA to 7210
3652 Adapter error-cannot DMA from 7210
3653 Data error on DMA from 7210
3658 Uninvoked interrupt received
3659 Adapter cannot interrupt on ADSC signal
3660 Adapter cannot interrupt on ADSC signal
3661 Adapter cannot interrupt on CO
3662 Adapter cannot interrupt on DO
3663 Adapter cannot interrupt on DI
3664 Adapter cannot interrupt on ERR
3665 Adapter cannot interrupt on DEC
3666 Adapter cannot interrupt on END
3667 Adapter cannot interrupt on DET
3668 Adapter cannot interrupt on APT
3669 Adapter cannot interrupt on CPT
3670 Adapter cannot interrupt on REMC
3671 Adapter cannot interrupt on LOKC
3672 Adapter cannot interrupt on SRQI
3673 Adapter cannot interrupt on terminal count on DMA to 7210
3674 Adapter cannot interrupt on terminal count on DMA from 7210
3675 Spurious DMA terminal count interrupt
3697 Illegal DMA configuration setting detected
3698 Illegal interrupt-level configuration setting detected
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System Board SCSI Controller (37xx)
37xx The system board SCSI controller has failed
- replace the motherboard
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Data Acquisition Adapter (38xx)
3801 Adapter test failure
3810 Timer read test failure
3811 Timer interrupt test failure
3812 Binary input 13 test failure
3813 Binary input 13 test failure
3814 Binary output 14-interrupt request test failure
3815 Binary output 0, count-in test failure
3816 Binary input strobe (STB), count-out test failure
3817 Binary output 0, Clear-to-Send (CTS) test failure
3818 Binary output 1, binary input 0 test failure
3819 Binary output 2, binary input 1 test failure
3820 Binary output 3, binary input 2 test failure
3821 Binary output 4, binary input 3 test failure
3822 Binary output 5, binary input 4 test failure
3823 Binary output 6, binary input 5 test failure
3824 Binary output 7, binary input 6 test failure
3825 Binary output 8, binary input 7 test failure
3826 Binary output 9, binary input 8 test failure
3827 Binary output 10, binary input 9 test failure
3828 Binary output 11, binary input 10 test failure
3829 Binary output 12, binary input 11 test failure
3830 Binary output 13, binary input 12 test failure
3831 Binary output 15, analog input CE test failure
3832 Binary output strobe (STB), binary output GATE test failure
3833 Binary input Clear-to-Send (CTS), binary input HOLD test failure
3834 Analog input Command Output (CO), binary input 15 test failure
3835 Counter interrupt test failure
3836 Counter read test failure
3837 Analog output 0 ranges test failure
3838 Analog output 1 ranges test failure
3839 Analog input 0 values test failure
3840 Analog input 1 values test failure
3841 Analog input 2 values test failure
3842 Analog input 3 values test failure
3843 Analog input interrupt test failure
3844 Analog input 23 address or value test failure
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Professional Graphics Adapter (PGA) (39xx)
3901 PGA test failure
3902 ROM1 self-test failure
3903 ROM2 self-test failure
3904 RAM self-test failure
3905 Cold start cycle power error
3906 Data error in communications RAM
3907 Address error in communications RAM
3908 Bad data detected while read/write to 6845 register
3909 Bad data detected in lower E0h bytes while read/writing 6845 registers
3910 Display bank output latch error
3911 Basic clock error
3912 Command control error
3913 Vertical sync scanner error
3914 Horizontal sync scanner error
3915 Intech error
3916 Lockup table (LUT) address error
3917 LUT "red" RAM chip error
3918 LUT "green" RAM chip error
3919 LUT "blue" RAM chip error
3920 LUT data latch error
3921 Horizontal display error
3922 Vertical display error
3923 Light pen error
3924 Unexpected error
3925 Emulator addressing error
3926 Emulator data latch error
3927 - 3930 Emulator RAM error
3931 Emulator horizontal/vertical display problem
3932 Emulator cursor position error
3933 Emulator attribute display problem
3934 Emulator cursor display error
3935 Fundamental emulation RAM problem
3936 Emulation character set problem
3937 Emulation graphics display error
3938 Emulation character display problem
3939 Emulation bank select error
3940 Display RAM U2 error
3941 Display RAM U4 error
3942 Display RAM U6 error
3943 Display RAM U8 error
3944 Display RAM U10 error
3945 Display RAM Ul error
3946 Display RAM U3 error
3947 Display RAM U5 error
3948 Display RAM U7 error
3949 Display RAM U9 error
3950 Display RAM U12 error
3951 Display RAM U14 error
3952 Display RAM U16 error
3953 Display RAM U18 error
3954 Display RAM U20 error
3955 Display RAM Ull error
3956 Display RAM U13 error
3957 Display RAM U15 error
3958 Display RAM U17 error
3959 Display RAM U19 error
3960 Display RAM U22 error
3961 Display RAM U24 error
3962 Display RAM U26 error
3963 Display RAM U28 error
3964 Display RAM U30 error
3965 Display RAM U21 error
3966 Display RAM U23 error
3967 Display RAM U25 error
3968 Display RAM U27 error
3969 Display RAM U29 error
3970 Display RAM U32 error
3971 Display RAM U34 error
3972 Display RAM U36 error
3973 Display RAM U38 error
3974 Display RAM U40 error
3975 Display RAM U31 error
3976 Display RAM U33 error
3977 Display RAM U35 error
3978 Display RAM U37 error
3979 Display RAM U39 error
3980 Graphics controller RAM timing error
3981 Graphics controller read/write latch error
3982 Shift register bus output latch error
3983 Addressing error (vertical column of memory; U2 at top)
3984 Addressing error (vertical column of memory; U4 at top)
3985 Addressing error (vertical column of memory; U6 at top)
3986 Addressing error (vertical column of memory; U8 at top)
3987 Addressing error (vertical column of memory; U10 at top)
3988 - 3991 Horizontal bank latch errors
3992 RAG/CAG graphics controller error
3993 Multiple write modes, nibble mask errors
3994 Row nibble (display RAM) error
3995 Graphics controller addressing error
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5278 Display Attachment Unit and 5279 Display (44xx)
44xx A fault has been detected with the display system
- replace the display system
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IEEE 488 (GPIB) Interface Adapter (45xx)
45xx A fault has been detected with the GPIB
- replace the adapter
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ARTIC Multiport/2 Interface Adapter (46xx)
4611 ARTIC adapter error
4612 or 4613 Memory module error
4630 ARTIC adapter error
4640 or 4641 Memory module error
4650 ARTIC interface cable error
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Internal Modem (48xx)
48xx The internal modem has failed
- replace the internal modem
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Alternative Internal Modem (49xx)
49xx The alternative internal modem has failed
- replace the alternate internal modem
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PC Convertible LCD (50xx)
5001 LCD buffer failure
5002 LCD font buffer failure
5003 LCD controller failure
5004 User-indicated PEL/drive test failed
5008 User-indicated display attribute test failed
5016 User-indicated character set test failed
5020 User-indicated alternative character set test failure
5024 User-indicated 80 X 25 mode test failure
5032 User-indicated 40 X 25 mode test failure
5040 User-indicated 320 x 200 graphics test failure
5048 User-indicated 640 X 200 graphics test failure
5064 User-indicated paging test failure
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PC Convertible Portable Printer (51xx)
5101 Portable printer interface failure
5102 Portable printer busy error
5103 Portable printer paper or ribbon error
5104 Portable printer time-out
5105 User-indicated print pattern test error
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Financial Communication System (56xx)
56xx A fault has been detected in the financial communication system
- replace the financial communication system
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Phoenix BIOS/Chipset Specific Error Codes (70xx)
7000 Chipset CMOS failure
7001 Shadow RAM failure (ROM not shadowed to RAM)
7002 Chipset CMOS configuration data error
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Voice Communications Adapter (VCA) (7lxx)
7101 Adapter test failure
7102 Instruction or external data memory error
7103 PC-to-VCA interrupt error
7104 Internal data memory error
7105 DMA error
7106 Internal registers error
7107 Interactive shared memory error
7108 VCA-to-PC interrupt error
7109 DC wrap error
7111 External analog wrap and tone output error
7114 Telephone attachment test failure
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3.5-in Floppy Disk Drive (73xx)
7301 Diskette drive/adapter test failure
7306 Diskette change line error
7307 Write-protected diskette
7308 Drive command error
7310 Diskette initialization failure-track 00 error
7311 Drive time-out error
7312 NEC drive controller IC error
7313 DMA error
7314 DMA boundary overrun error
7315 Drive index timing error
7316 Drive speed error
7321 Drive seek error
7322 Drive CRC cheek error
7323 Sector not found error
7324 Address mark error
7325 NEC controller IC seek error
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8514/A Display Adapter (74xx)
7426 8514 display error
7440 - 7475 8514/A memory module error
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4216 Page Printer Adapter (76xx)
7601 Adapter test failure
7602 Adapter card error
7603 Printer error
7604 Printer cable error
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PS/2 Speech Adapter (84xx)
84xx A fault has been detected in the speech adapter
- replace the speech adapter
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2-Mbyte XMA Memory Adapter (85xx)
85xx A fault has been detected in the memory adapter
- replace the memory adapter
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PS/2 Pointing Device (86xx)
8601 Pointing device; mouse time-out error
8602 Pointing device; mouse interface error
8603 System board; mouse interrupt failure
8604 Pointing device or system board error
8611 System bus error
8612 Trackpoint II error
8613 System bus or Trackpoint II error
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MIDI Interface (89xx)
89xx A fault has been detected in the MIDI adapter
- replace the MIDI adapter
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3363 Worm Optical Drive/Adapters (91xx)
91xx A fault has been detected in the drive or adapter
- replace the adapter and the drive
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SCSI Adapter (W/32-bit Cache) (96xx)
96xx A fault has been detected in the SCSI adapter
- replace the adapter board
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Multiprotocol Adapters (100xx)
10001 Presence test failure
10002 Card selected feedback error
10003 Port 102h register test failure
10004 Port 103h register test failure
10006 Serial option cannot be disabled
10007 Cable error
10008 IRQ3 error
10009 IRQ4 error
10010 UART register failure
10011 Internal wrap test of UART control line failed
10012 External wrap test of UART control line failed
10013 UART transmit error
10014 UART receive error
10015 UART receive error-data not equal to transmit data
10016 UART interrupt error
10017 UART baud rate test failure
10018 UART receive external wrap test failure
10019 UART FIFO buffer failure
10026 8255 Port A error
10027 8255 Port B error
10028 8255 Port C error
10029 8254 timer 0 error
10030 8254 timer 1 error
10031 8254 timer 2 error
10032 Bi-syne Data Set Ready (DSR) response error
10033 Bi-sync Clear-to-Send (CTS) error
10034 8251 hardware reset test failed
10035 8251 function generator
10036 8251 status error
10037 Bi-syne timer interrupt error
10038 Bi-syne transmit interrupt error
10039 Bi-syne receive interrupt error
10040 Stray IRQ3 error
10041 Stray IRQ4 error
10042 Bi-syne external wrap error
10044 Bi-sync data wrap error
10045 Bi-syne line status error
10046 Bi-syne time-out error during wrap test
10050 8273 command acceptance or time-out error
10051 8273 Port A error
10052 8273 Port B error
10053 SDLC modem status logic error
10054 SDLC timer IRQ4 error
10055 SDLC IRQ4 error
10056 SDLC external wrap error
10057 SDLC interrupt results error
10058 SDLC data wrap error
10059 SDLC transmit interrupt error
10060 SDLC receive interrupt error
10061 DMA channel 1 transmit error
10062 DAM channel 1 receive error
10063 8273 status detect failure
10064 8273 error detect failure
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Internal 300/1200-bps Modem (101xx)
10101 Presence test failure
10102 Card-selected feedback error
10103 Port 102h register test error
10106 Serial option cannot be disabled
10108 IRQ3 error
10109 IRQ4 error
10110 UART chip register failure
10111 UART control line internal wrap test failure
10113 UART transmit error
10114 UART receive error
10115 UART error-transmit and receive data not equal
10116 UART interrupt function error
10117 UART baud rate test failure
10118 UART interrupt-driven receive external data wrap test failure
10125 Modem reset result code error
10126 Modem general result code error
10127 Modem S-registers write/read error
10128 Modem echo on/off error
10129 Modem enable/disable result codes error
10130 Modem enable number/word result codes error
10133 Connect results for 300 baud not received
10134 Connect results for 1200 baud not received
10135 Modem fails local analog loopback 300-baud test
10136 Modem fails local analog loopback 1200-baud test
10137 Modem does not respond to escape/reset sequence
10138 S-register 13 shows incorrect parity or number of data bits
10139 S-register 15 shows incorrect bit data
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ESDI or MCA IDE Drive/Adapters (104xx)
10450 Write/read test failed
10451 Read verify test failed
10452 Seek test failed
10453 Wrong drive type indicated
10454 Controller failed sector buffer test
10455 Controller failed-invalid
10456 Controller diagnostic command failure
10461 Drive format error
10462 Controller head select error
10463 Drive write/read sector error
10464 Drive primary defect map unreadable
10465 Controller ECC 8-bit error
10466 Controller ECC 9-bit error
10467 Drive soft seek error
10468 Drive hard seek error
10469 Drive soft seek error count exceeded
10470 Controller attachment diagnostic error
10471 Controller wrap mode interface error
10472 Controller wrap mode drive select error
10473 Error during ESD1 read verify test
10480 Seek failure on drive 0
10481 Seek failure on drive 1
10482 Controller transfer acknowledge error
10483 Controller reset error
10484 Controller head select 3 selected bad
10485 Controller head select 2 selected bad
10486 Controller head select 1 selected bad
10487 Controller head select 0 selected bad
10488 Read gate command error
10489 Read gate command error
10490 Diagnostic read error on drive 0
10491 Diagnostic read error on drive 1
10492 Drive 1 controller error
10493 Drive 1 reset error
10499 Controller failure
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5.25-in External Disk Drive/Adapter (107xx)
107xx A fault has been detected in the drive or adapter
- replace the adapter and drive
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SCSI Adapter (16-bit W/0 Cache) (112xx)
112xx A fault has been detected in the SCSI adapter
- replace the SCSI adapter
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System Board SCSI Adapter (113xx)
113xx A fault has been detected in the SCSI adapter
- replace the motherboard
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CPU Board (129xx)
12901 Processor test failed
12902 CPU board cache test failed
12904 Second-level (L2) cache failure
12905 Cache enable/disable errors
12907 Cache fatal error
12908 Cache POST program error
12912 Hardware failure
12913 MCA bus time-out
12914 Software failure
12915 CPU board error
12916 CPU board error
12917 CPU board error
12918 CPU board error
12919 CPU board error
12940 CPU board error
12950 CPU board error
12990 CPU serial number mismatch
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P70/P75 Plasma Display Adapter (149xx)
14901 Plasma display adapter failure
14902 Plasma display adapter failure
14922 Plasma display failure
14932 External display device failure
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XGA Display Adapter (152xx)
152xx A fault has been detected in the XGA adapter
- replace the adapter
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120-Mbyte Internal Tape Drive (164xx)
164xx A fault has been detected in the tape drive
- replace the tape drive
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6157 Streaming Tape Drive (165xx)
16520 Streaming tape drive failure
16540 Tape attachment adapter failure
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Primary Token-Ring Network Adapters (166xx)
166xx A fault has been detected with the network adapter
- replace the network adapter
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Secondary Token-Ring Network Adapters (167xx)
167xx A fault has been detected with the network adapter
- replace the network adapter
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PS/2 Wizard Adapter (180xx)
18003 Timer interrupt failure
18004 Sync cheek interrupt failure
18005 Parity cheek interrupt failure
18006 Access error interrupt failure
18012 Bad cheeksum
18013 MCA bus interface error
18021 Wizard memory compare or parity error
18022 Wizard memory address line error
18023 Dynamic RAM controller failure
18029 Wizard memory byte enable error
18031 Wizard memory expansion module compare or parity error
18032 Wizard memory expansion module address line error
18039 Wizard memory expansion module byte enable error
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DBCS Japanese Display Adapter (185xx)
185xx A fault has been detected in the display adapter
- replace the adapter
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80286 Memory Expansion Option Module (194xx)
194xx A fault has been detected in the memory module
- replace the memory module
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Image Adapter (200xx)
200xx A fault has been detected in the image adapter
- replace the image adapter correctly.
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Unknown SCSI Devices (208xx)
208xx A fault has been detected in an unknown SCSI device
- systematically isolate and replace the defective SCSI device
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SCSI Removable Disk (209xx)
209xx A fault has been detected in the SCSI removable disk
- replace the removable disk
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SCSI Fixed Disk (210xx)
210xx A fault has been detected in the SCSI fixed disk
- replace the fixed disk
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Basic Troubleshooting Steps
Beep Codes
