POST Diagnostic Error Codes | Tech Info Home Page |

Contents
AMI, Award, Phoenix, IBM, Links

AMI

AMI Post Codes - More Info @ AMI Link 

 

AWARD

Award Post Codes - see the Phoenix Link.

Phoenix

POST codes listing @ Phoenix Link 

Beeps , Error Messages

1            Standard one short beep on boot
1-2        Search for Option ROM, 1 long 2 short beeps on checksum failure
1-2-2-3 BIOS ROM checksum
1-3-1-1 Test DRAM refresh
1-3-1-3 Test 8742 Keyboard Controller
1-3-4-1 RAM Failure on address 'xxxx'
1-3-4-3 RAM Failure of data bits xxxx of low byte of memory
1-4-1-1 RAM Failure of data bits xxxx of high byte of memory
2-1-2-3 Check ROM copyright notice
2-2-3-1 Test for unexpected interrrupts

 

The Original IBM PC POST codes

Post diagnostic errors ( many are IBM PC/XT only and could vary from one system to another)

• 01x - Unknown Error
• 02x - Power supply
• 1xx - System motherboard error
  • 161, Dead CMOS battery
• 2xx - Memory failure
• 3xx - Keyboard failure
• 4xx - Monochrome display adapter failure (video card error codes)
• 5xx - CGA (Color Graphics Adapter) display adapter failure
• 6xx - Floppy drive
• 7xx - Math co-processor error
• 8xx -
• 9xx - Parallel Printer port error
• 10xx - Second parallel printer port error
• 11xx - Serial Port error
• 12xx - Second serial port error
• 13xx - Game port adapter
• 14xx - Printer control
• 15xx - SDLC adapter
• 16xx - display emulator cards
• 17xx - Hard Drive
  • 1701, POST failure of hard drive - ...Hard Drive Troubleshooting
  • 1702, Hard Drive Adapter Card error
  • 1703, Hard Drive failure
  • 1704, Hard Drive OR Adapter failure
  • 1780, Hard drive 0 failed
  • 1781, Hard drive 1 failed
  • 1782, Hard drive controler failed
  • 1790, Hard drive 0 error
  • 1791, Hard drive 1 error
• 18xx - I/O card error
• 19xx - 3270 card errors
• 20xx - BSC adapter
• 21xx - BSC adapter
• 22xx -
• 23xx -
• 24xx - EGA video card error, VGA error
• 25xx -
• 26xx -
• 27xx -
• 28xx -
• 29xx -
• 30xx - Network card error
• 31xx - Network card error
• 32xx -
• 33xx -
• 34xx -
• 35xx -
• 36xx -
• 74xx - VGA card
• 1xx, System Motherboard Errors
• 104xxx - ESDI hard drive error
• 101, Interrupt failure
• 102, Timer Failure
• 103, Timer Interrupt Failure
• 104, Protected mode failure
• 105, 8042 command error

Links

• The "BIOS" page -

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