A Complete List of  PC Error Codes

01x Undetermined problem
02x Power supply
1xx System board
101 System board; Interrupt failure
102 System board; Timer failure
103 System board; Timer interrupt failure
104 System board; protected mode failure
105 System board; last 8042 command not accepted
106 System board; Converting logic test
107 System board; Hot non-maskable interrupt test
108 System board; Timer bus test
109 System board; Memory select error
110 PS2 system board; Parity check error
111 PS2 memory adapter
112 PS2 MicroChannel arbitration
113 PS2 MicroChannel arbitration
114 PS2 External ROM checksum error
115 Cache parity error, ROM checksum, or DMA error
116 System board port read/write failure
118 System board parity or L2-cache error during previous power-on
119 "E" Step level 82077 (floppy controller) and 2.88M drive installed (not supported)
120 Microprocessor self test error
121 256K ROM checksum error (second 128Kb bank)
121 Unexpected hardware interrupts
131 PC system board cassette port wrap test failed
131 DMA compatibility registers error
132 DMA extended registers error
133 DMA verify logic error
134 DMA arbitration logic error
151 Battery or CMOS RAM failure
152 Real-time clock or CMOS RAM failure
160 PS2 system board ID not recognized
161 System options not set; dead battery
162 System options not set; CMOS checksum/configuration error
163 Time and Date not set; clock not updating
164 Memory Size error; CMOS setting does not match RAM
165 PS2 system options not set
166 PS2 MicroChannel adapter time-out error
167 PS2 system clock not updating
168 CMOS configuration error (math co-processor)
169 System board and processor card configuration mismatch
170 ASCII setup conflict error
170 PC Convertible;LCD not in use when suspended
171 Rolling-bit-test failure on CMOS shutdown address byte
171 PC Convertible; base 128K checksum failure
172 Rolling-bit-test failure on NVRAM diagnostic byte
172 PC Convertible;diskette active when suspended
173 Bad CMOS/NVRAM checksum
173 PC Convertible;real-time clock RAM verification error
174 Bad configuration
174 PC Convertible;LCD configuration change
175 Bad EEPROM CRC #1
175 PC Convertible;LCD alternate mode failed
176 Tamper evident
177 Bad priviledged-access-password CRC
177 Bad EEPROM
178 Bad EEPROM
179 NVRAM error log full
180x Sub address data error, x is the slot number of the error
181 Unsupported configuration
182 Priviledged-access switch (jmp 2) is not in the write-enable position
183 PAP is needed to boot from the ssytem programs
183 PAP is required
184 Bad power on password checksum - erase it
184 Bad power on password
185 Bad startup sequence
186 Password-protection hardware error
187 Serial number error
188 Bad EEPROM checksum CRC #2
189 Excessive incorrect password attempts
191 82385 cache controller failure
194 System board memory error
199 INSTALLED DEVICES list
2xx Memory
201 Memory (address indicated in hex)
202 Memory address (address lines 00-15)
203 Memory address (address lines 16-13)
204 Memory remapped due to error (run diagnostics)
205 Base 128K memory error; memory remapped
207 ROM failure
210 System board memory parity error
211 PS2 memeory;base 64K on system board failed
212 Watchdog time-out error; reported by NMI interrupt handler
213 DMA bus arbitration time-out;reported by NMI interrupt handler
215 PS2 motherboard memory failure
216 PS2 motherboard memory failure
221 PS2 memory;ROM to RAM copy failed (ROM shadowing)
225 PS2 memory;wrong speed memory on ssytem board (unsupported SIMM)
230 Overlapping adapter and planar memory (Family 1)
231 Non-contiguous adapter memory installed (Family 1)
231 2/4-16 MB Enhanced 386 memory adapter;failure of memory module 1
235 Stuck data line on memory module, microprocessor, or system board
241 2/4-16MB Enhanced 386 memeory adapter;failure of memory module 2
251 2/4-16MB Enhanced 386 memory adapter;failure of memory module 3
3xx Keyboard
301 Keyboard not responding or a stuck key. (If stuck, hex scan code for the key will show)
302 System unit keylock locked
303 Keyboard or system unit error
304 Keyboard clock high; keyboard or system unit error
305 PS2 keyboard fuse (located on system board);keyboard +5V DC error
306 Unsupported keyboard attached
341 Keyboard error
4xx Monochrome display adapter
4xx PS2 system board parrallel port
401 PS2 System board parrallel port
401 Monochrome memory, horizontal sync frequency, or video test
408 User indicated display attributes
416 User indicated character set
424 User indicated 80X25 mode
432 Parrallel port; monochrome display adapter
5xx Color Graphics adapter (CGA)
501 CGA memory test, horizontal sync frequency, or video test
503 CGA adapter controller failed
508 User indicated display attribute
516 User indicated character set
524 User indicated 80X25 mode
532 User indicated 40X25 mode failure
540 User indicated 320X200 graphics mode
548 User indicated 640X200 graphics mode
556 User indicated light pen failed
564 User indicated paging test failure
6xx Floppy drive/adapter
601 Floppy drive/adapter
602 Drive test: disk boot record
603 Diskette size error
604 Non-media sense
605 Diskette drive locked
606 Disk chainline function; drive error
607 Disk is write protected; drive error
608 Bad command; drive error
610 Disk initialiization; track 0 bad
611 Time-out; drive error
612 Bad controller chip
613 Bad direct memory access; drive error
614 Bad direct memory access; boundary overrun
615 Bad index timing; drive error
616 Drive speed
621 Bad seek; drive error
622 Bad cyclic redundancy check (CRC); drive error
623 Record not found; drive error
624 Bad address mark; drive error
625 Bad controller chip; seek error
626 Disk data compare error
627 Diskette change error
628 Diskette removed
630 Index stuck high;drive A
631 Index stuck low ; drive A
632 Track 0 stuck off ;drive A
633 Track 0 stuck on;drive A
640 Index stuck high; drive B
641 Index stuck low ;drive B
642 Track 0 stuck off ; drive B
643 Track 0 stuck on; drive B
645 No index pulse
646 Drive track 0 detection failed
647 No transitions on read data line
648 Format test failed
649 Incorrect media type
650 Drive speed error
651 Format failure
652 Verify failure
653 Read failure
654 Write failure
655 Controller error
656 Drive failure
657 Write protect stuck protected
658 Changeline stuck changed
659 Write protect stuck unprotected
660 Changeline stuck unchanged
7xx 8087, 80287, 80397 math coprocessor
701 Math copprocessor presence/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) failure
707 Combination test failure
708 Integer load/store test failure
709 Equivalent expressions errors
710 Exception (interrupt) errors
711 Save state (FSAVE) errors
712 Protected mode test failure
713 Special test (voltage/temperature sensitivity) failure
9xx Parallel printer adapter
901 Alternate parrallel printer adapter test error
902 Printer adapter data register latch error
903 Printer adapter register address decode error
904 Printer adapter address decode error
910 Status line(s) 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 error
92X Feature register error
10xx Alternate parrallel printer adapter error
1001 Alternate parrallel printer test error
1002 Printer adapter control register latch error
1003 Printer adapter register address decode error
1004 Printer adapter 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
11xx Asynchronous communications adapter
11xx PS2 System board async port
1101 Asynchronous communications adapter test failure
1102 PS2 system board async port or serial device
1102 PC Convertible internal modem test failure
1103 Port 102h register test failure
1103 PC Convertible internal modem dial tone test 1 failure
1104 PC Convertible internal modem dial tone test 2 failure
1106 PS2 system board async port or serial device
1107 PS2 system board async port or serial cable (option can not be put to sleep)
1108 PS2 system board async port or serial device (IRQ 3)
1109 PS2 system board async port or serial device (IRQ 4)
1110 16450/16550 register error
1111 Internal wrap test of 16450/16550 chip modem control line failure
1112 PS2 system board async port (External wrap test)
1113 16450/16550 chip transmit error
1114 16450/16550 chip receive error
1115 16450/16550 chip receive error (data not equal to transmit data)
1116 16450/16550 chip interrupt function error
1117 16450/16550 chip baud rate test failure
1118 PS2 system board async port (External data wrap test failure)
1119 PS2 system board async port (FIFO buffer failure)
1120 Interrupt enable register error (all bits can not be set)
1121 Interrupt enable register error (all bits can not be reset)
1122 Interrrupt pending (stuck on)
1123 Interrupt ID register (stuck on)
1124 Modem control register error (all bits can not be set)
1125 Modem control register error (all bits can not be reset)
1126 Modem status register error (all bits can not be set)
1127 Modem stats register error (all bits can not 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 interrupt
1134 No transmit holding interrupt
1135 No interrupts
1136 No received sine 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 interrupt 4
1143 No interrupt 3
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 data set ready and delta data set ready
1152 No data set ready
1153 No delta data set ready
1154 Modem status register no clear
1155 No clear to send and delta clear to send
1156 No clear to send
1157 No delta clear to send
12xx PS2 dual async adapter
1201 Alternate asynchronous communications adapter
1202 PS2 system board async port or serial device
1206 PS2 system board async port or serial device
1207 PS2 system board async port or serial cable
1209 PS2 system board async port or serial device
1212 PS2 system board async port or system board
1218 PS2 system board async port or system board
1219 PS2 system board async port or system board
1227 PS2 system board async port or system board
1233 PS2 system board async port or system board
1234 PS2 system board async port or system board
13xx Game control adapter
1301 Game control adapter test failure
1302 Joy-stick test failure
14xx Matrix printer
15xx Synchronouse data link control (SDLC) communications adapter
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 stuck on
1515 8253 timer 0 did not reach terminal count
1516 8253 timer 0 stuck on
1517 8253 timer 2 did not reach terminal count
1518 8253 timer 2 stuck on
1519 8253 port B
1520 8253 port A
1521 8273 command/read time-out
1522 Interrupt level 4 failure
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
1536 Clear to send stuck on
1537 Level 3 interrupt failure
1538 Receive interrupt failure
1539 Wrap data compare error
1540 Direct memory access channel 1 error
1541 Direct memory access channel 1 error
1542 Error in 8273 error checking or staus reporting
1547 Stray interrupt level 4
1548 Stray interrupt level 3
1549 Interrupt presentation sequence time-out
16xx Display emulation errors (327x, 5520, 525x)
17xx Fixed disk (hard drive)
1701 Fixed disk adapter
1702 Fixed disk adpater
1703 Fixed disk drive
1704 Fixed disk drive or adpater
1780 Fixed disk 0 failure (C drive failure)
1781 Fixed disk 1 failure (D drive failure)
1782 Fixed disk controller failure
1790 Fixed disk 0
1791 Fixed disk 1

The A+ examination does not cover the error codes listed below, but they are provided for your information only.

18xx I/O expansion unit
1801 I/O expansion unit POST
1810 Enable/Disable
1811 Extender card wrap test failure; disabled
1812 High order address lines failure; enabled
1813 Wait state failure; disabled
1814 Enable/Disable could not be set on
1815 Wait state failure; disabled
1816 Extender card wrap test failure; enabled
1817 High order address lines failure; enabled
1818 Disable not functioning
1819 Wait request switch not set correctly
1820 Receiver card wrap test failure
1821 Receiver high order address lines failure
19xx 3270 PC attachment card
20xx Binary synchronous communications (BSC) adapter
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 stuck on
2015 8253 timer 2 did not reach terminal count or timer 2 stuck on
2017 8251 Data set read failed to come on
2018 8251 Clear to send not sensed
2019 8251 Data set read stuck on
2020 8251 Clear to send stuck on
2021 8251 hardware reset failure
2022 8251 software reset failure
2023 8251 software "error reset" 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 Interript failure; no timer interrupr
2028 Interrupt failure; transmit, replace card or planar
2029 Interrupt failure; transmit, replace card
2030 Interrupt failure; receive, replace card, or planar
2031 Interrupt failure; receive, replace card
2033 Ring indicate stuck on
2034 Receive clock stuck on
2035 Transmit clock stuck on
2036 Test indicate stuck on
2037 Ring indicate stuck on
2038 Receive clock not on
2039 Transmit clock not on
2040 Data set ready not on
2041 Data set ready not 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 during data wrap
2052 Receive time-out during data wrap
21xx Alternate binary synchronous communcations adapter
2110 8255 port A
2111 8255 port B
2112 8255 port C
2113 8253 timer 1 did not reach terminal count
2114 8253 timer 1 stuck on
2115 8253 timer 2 did not reach terminal count or timer 2 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 failure
2123 8251 software "error rest" 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; receive, replace card or planar
2129 Interrupt failure; transmit, replace card
2130 Interrupt failure; receive, replace card or planar
2131 Interrupt failure; receive, replace card
2133 Ring indicate stuck on
2134 Receive clock stuck on
2135 Transmit clock stuck on
2136 Test indicate stuck on
2137 Ring indicate stuck on
2138 Receive clock not on
2139 Transmit clock not on
2140 Test indicate not on
2141 Data set ready not 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 during data wrap
2152 Receive time-out during data wrap
22xx Cluster adapter
24xx Enhanced Graphics Adapter (EGA)
24xx PS2 system board Video Graphics Array (VGA) - often is due to monitor or monitor cable
26xx XT/370
27xx AT/370
28xx 3278/79 emulation adapter
29xx Color/graphics printer
30xx Primary PC network adapter
3001 Processor test
3002 ROM Checksum test failure
3003 Unit ID PROM test failure
3004 RAM test failure
3006 +/- 12V test failure
3007 Digital loopback test failure
3008 Host detected host interface controller failure
3009 Sync failure and ni Go bit
3010 Host interface controller test ok and no Go bit
3011 Go bit and no command 41
3012 Card not present
3013 Digital failure; fall through
3015 Analog failure
3041 Hot carrier; not this card
3042 Hot carrier; this card!
31xx Secondary PC network adpater
3101 Processor test failure
3102 ROM checksum test failure
3103 Unit ID PROM test failure
3104 RAM test failure
3105 Host interface controller test failure
3106 +/- 12V test failure
3107 Digital loopback test failure
3108 Host detected host interface controller failure
3109 Sync failure and no Go bit
3110 Host interface controller test OK and no Go bit
3111 Go bit and no command 41
3112 Card not present
3113 Digital failure; fall through
3114 Analog failure
3115 Hot carrier; not this card
3142 Hot carrier; this card
33xx Compact printer
36xx General purpose interface bus (GPIB) adapter
38xx Data acquisition adapter
39xx Professional graphics controller
71xx Voice communcations adapter
73xx 3.5 inch external disk drive
7306 Dick changeline function failure; drive error
7307 Disk s write-protected; drive error
7308 Bad command; drive error
7310 Disk initialization failure; track 0 bad
7311 Time-out; drive error
7312 Bad controller chip
7313 Bad direct memory access;drive error
7314 Bad direct memor access; boundary overrun
7315 Bad index timing; drive error
7316 Drive speed error
7322 Bad cyclic redundancy check; drive errors
7323 Record not found; drive error
7324 Bad address mark; drive error
7325 Bad controller chip; seek error
74xx PS2 display adapter (VGA card)
85xx Expanded memory adapter (XMA)
86xx PS2 pointing device
8601 PS2 pointing device
8602 PS2 pointing device
8602 PS2 pointing device or system board
89xx Music feature
100xx PS2 multiprotocol adapter
10002 PS2 multiprotocol adapter or serial device
10006 PS2 multiprotocol adapter or serial device
10007 PS2 multiprotocol adapter or cable
10008 PS2 multiprotocol adapter or serial device
10009 PS2 multiprotocol adapter or serial device
10012 PS2 multiprotocol adapter or system board error
10018 PS2 multiprotocol adapter or system board error
10019 PS2 multiprotocol adapter or system board error
10042 PS2 multiprotocol adapter or system board error
10056 PS2 multiprotocol adapter or system board error
104xx PS2 ESDI fixed disk
10480 PS2 ESDI fixed disk 0 failure
10481 PS2 ESDI fixed disk 1 failure
10482 PS2 ESDI fixed disk controller failure
10483 PS2 ESDI fixed disk controller failure
10490 PS2 ESDI fixed disk 0
10491 PS2 ESDI fixed disk 1

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