POST Codes for AMI and Phoenix BIOS

Just some info I think will be useful to those trying to figure their problems out.

Standard Original IBM POST Error Codes

1 short beep: Normal POST - system is ok
2 short beeps: POST Error - error code shown on screen
No beep: Power supply or system board problem
Continuous beep: Power supply, system board, or keyboard problem
Repeating short beeps: Power supply or system board problem
1 long, 1 short beep: System board problem
1 long, 2 short beeps: Display adapter problem (MDA, CGA)
1 long, 3 short beeps: Enhanced Graphics Adapter (EGA)
3 long beeps: 3270 keyboard card

IBM POST Diagnostic Code Descriptions
100 - 199: System Board
200 - 299: Memory
300 - 399: Keyboard
400 - 499: Monochrome Display
500 - 599: Color/Graphics Display
600 - 699: Floppy-disk drive and/or Adapter
700 - 799: Math Coprocessor
900 - 999: Parallel Printer Port
1000 - 1099: Alternate Printer Adapter
1100 - 1299: Asynchronous Communication Device, Adapter, or Port
1300 - 1399: Game Port
1400 - 1499: Color/Graphics Printer
1500 - 1599: Synchronous Communication Device, Adapter, or Port
1700 - 1799: Hard Drive and/or Adapter
1800 - 1899: Expansion Unit (XT)
2000 - 2199: Bisynchronous Communication Adapter
2400 - 2599: EGA system-board Video (MCA)
3000 - 3199: LAN Adapter
4800 - 4999: Internal Modem
7000 - 7099: Phoenix BIOS Chips
7300 - 7399: 3.5" Disk Drive
8900 - 8999: MIDI Adapter
11200 - 11299: SCSI Adapter
21000 - 21099: SCSI Fixed Disk and Controller
21500 - 21599: SCSI CD-ROM System

AMI BIOS Beep Codes
1 Short Beep: Everything's normal
2 Short Beeps: Memory
3 Short Beeps: Memory
4 Short Beeps: Memory/Timer
5 Short Beeps: General Motherboard failure
6 Short Beeps: Keyboard Chip (A20 Gate)
7 Short Beeps: CPU
8 Short Beeps: Video Card
9 Short Beeps: BIOS
10 Short Beeps: CMOS
11 Short Beeps: Memory Cache
1 Long, 3 Short Beeps: Memory
1 Long, 8 Short Beeps: Video Card

Phoenix BIOS Beep Codes (1-1-3 means one beep, pause, one beep, pause, and three beeps)
1-1-3: CMOS
1-1-4: BIOS
1-2-1: Timer
1-2-2: Motherboard
1-2-3: Motherboard
1-3-1: Motherboard
1-3-3: Motherboard
1-3-4: Motherboard
1-4-1: Motherboard
1-4-2: Memory
2-_-_: Memory
3-1-_: Motherboard
3-2-4: Keyboard Chip (A20 Gate)
3-3-4: No Video Card
3-4-_: Video Card
4-2-1: Motherboard
4-2-2: Keyboard Missing/Motherboard
4-2-3: Keyboard Missing/Motherboard
4-2-4: Expansion Card Error
4-3-1: Motherboard
4-3-2: Motherboard
4-3-3: Motherboard
4-3-4: Internal Clock
4-4-1: Serial Port
4-4-2: Parallel Port
4-4-3: Math Coprocessor
Low 1-1-2: Motherboard
Low 1-1-3: Extended CMOS RAM problem

Phoenix BIOS Beep Codes
Unfortunately dependent on motherboard maker


Obviously, some items are outdated (CGA?!). If anyone's got some to add, change, or delete, feel free to share! :D
Source
3 answers Last reply
More about post codes phoenix bios
  1. Thanks for this! Any idea why Phoenix BIOS beep codes are dependent on the manager?
  2. I keep getting 2524 as an error code

    Can someone explain what that is?

    There is no onboard video?

    Thanks
  3. MomoCC said:
    Just some info I think will be useful to those trying to figure their problems out.

    Standard Original IBM POST Error Codes

    1 short beep: Normal POST - system is ok
    2 short beeps: POST Error - error code shown on screen
    No beep: Power supply or system board problem
    Continuous beep: Power supply, system board, or keyboard problem
    Repeating short beeps: Power supply or system board problem
    1 long, 1 short beep: System board problem
    1 long, 2 short beeps: Display adapter problem (MDA, CGA)
    1 long, 3 short beeps: Enhanced Graphics Adapter (EGA)
    3 long beeps: 3270 keyboard card

    IBM POST Diagnostic Code Descriptions
    100 - 199: System Board
    200 - 299: Memory
    300 - 399: Keyboard
    400 - 499: Monochrome Display
    500 - 599: Color/Graphics Display
    600 - 699: Floppy-disk drive and/or Adapter
    700 - 799: Math Coprocessor
    900 - 999: Parallel Printer Port
    1000 - 1099: Alternate Printer Adapter
    1100 - 1299: Asynchronous Communication Device, Adapter, or Port
    1300 - 1399: Game Port
    1400 - 1499: Color/Graphics Printer
    1500 - 1599: Synchronous Communication Device, Adapter, or Port
    1700 - 1799: Hard Drive and/or Adapter
    1800 - 1899: Expansion Unit (XT)
    2000 - 2199: Bisynchronous Communication Adapter
    2400 - 2599: EGA system-board Video (MCA)
    3000 - 3199: LAN Adapter
    4800 - 4999: Internal Modem
    7000 - 7099: Phoenix BIOS Chips
    7300 - 7399: 3.5" Disk Drive
    8900 - 8999: MIDI Adapter
    11200 - 11299: SCSI Adapter
    21000 - 21099: SCSI Fixed Disk and Controller
    21500 - 21599: SCSI CD-ROM System

    AMI BIOS Beep Codes
    1 Short Beep: Everything's normal
    2 Short Beeps: Memory
    3 Short Beeps: Memory
    4 Short Beeps: Memory/Timer
    5 Short Beeps: General Motherboard failure
    6 Short Beeps: Keyboard Chip (A20 Gate)
    7 Short Beeps: CPU
    8 Short Beeps: Video Card
    9 Short Beeps: BIOS
    10 Short Beeps: CMOS
    11 Short Beeps: Memory Cache
    1 Long, 3 Short Beeps: Memory
    1 Long, 8 Short Beeps: Video Card

    Phoenix BIOS Beep Codes (1-1-3 means one beep, pause, one beep, pause, and three beeps)
    1-1-3: CMOS
    1-1-4: BIOS
    1-2-1: Timer
    1-2-2: Motherboard
    1-2-3: Motherboard
    1-3-1: Motherboard
    1-3-3: Motherboard
    1-3-4: Motherboard
    1-4-1: Motherboard
    1-4-2: Memory
    2-_-_: Memory
    3-1-_: Motherboard
    3-2-4: Keyboard Chip (A20 Gate)
    3-3-4: No Video Card
    3-4-_: Video Card
    4-2-1: Motherboard
    4-2-2: Keyboard Missing/Motherboard
    4-2-3: Keyboard Missing/Motherboard
    4-2-4: Expansion Card Error
    4-3-1: Motherboard
    4-3-2: Motherboard
    4-3-3: Motherboard
    4-3-4: Internal Clock
    4-4-1: Serial Port
    4-4-2: Parallel Port
    4-4-3: Math Coprocessor
    Low 1-1-2: Motherboard
    Low 1-1-3: Extended CMOS RAM problem

    Phoenix BIOS Beep Codes
    Unfortunately dependent on motherboard maker


    Obviously, some items are outdated (CGA?!). If anyone's got some to add, change, or delete, feel free to share! :D
    Source


    Are the Ami post beep codes still accurate to this day because I've read on multiple pages that 2 beeps might also be parity circuit error and here it says memory error
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