Beep Error Codes

AMI BIOS Beep Codes

  • 1 Short Beep System OK
  • 2 Short Beeps Parity error in the first 64 KB of memory
  • 3 Short Beeps Memory failure in the first 64 KB
  • 4 Short Beeps Memory failure in the first 64 KB Operational of memory
    or Timer 1 on the motherboard is not functioning

  • 5 Short Beeps The CPU on the motherboard generated an error
  • 6 Short Beeps The keyboard controller may be bad. The BIOS cannot switch to protected mode
  • 7 Short Beeps The CPU generated an exception interrupt
  • 8 Short Beeps The system video adapter is either missing, or its memory is faulty
  • 9 Short Beeps The ROM checksum value does not match the value encoded in the BIOS
  • 10 Short Beeps The shutdown register for CMOS RAM failed
  • 11 Short Beeps The external cache is faulty
  • 1 Long, 3 Short Beeps Memory Problems
  • 1 Long, 8 Short Beeps Video Card Problems

Phoenix BIOS Beep Codes

  • 1-1-3 CMOS read/write failure
  • 1-1-4 ROM BIOS checksum error
  • 1-2-1 Programmable interval timer failure
  • 1-2-2 DMA initialisation failure
  • 1-2-3 DMA page register read/write failure
  • 1-3-1 RAM refresh verification failure
  • 1-3-3 First 64k RAM chip or data line failure
  • 1-3-4 First 64k RAM odd/even logic failure
  • 1-4-1 Address line failure first 64k RAM
  • 1-4-2 Parity failure first 64k RAM
  • 2-_-_ Faulty Memory
  • 3-1-_ Faulty Motherboard
  • 3-2-4 Keyboard controller Test failure
  • 3-3-4 Screen initialisation failure
  • 3-4-1 Screen retrace test failure
  • 3-4-2 Search for video ROM in progress
  • 4-2-1 Timer tick interrupt in progress or failure
  • 4-2-2 Shutdown test in progress or failure
  • 4-2-3 Gate A20 failure
  • 4-2-4 Unexpected interrupt in protected mode
  • 4-3-1 RAM test in progress or failure>ffffh
  • 4-3-2 Faulty Motherboard
  • 4-3-3 Interval timer channel 2 test or failure
  • 4-3-4 Time of Day clock test failure
  • 4-4-1 Serial port test or failure
  • 4-4-2 Parallel port test or failure
  • 4-4-3 Math coprocessor test or failure
  • Low 1-1-2 System Board select failure
  • Low 1-1-3 Extended CMOS RAM failure

IBM POST Error Codes

  • 1 short beep 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 Display adapter problem (EGA)
  • 3 long beeps 3270 keyboard card

Award BIOS Beep Codes

  • 1long, 2 short – Video adapter error (Either video adapter is bad or is not seated properly. Also, check to ensure the monitor cable is connected properly.)
  • Repeating (endless loop) – Memory error (Check for improperly seated or missing memory.)
  • 1long, 3short – No video card or bad video RAM (Reseat or replace the video card.)
  • High frequency beeeps while running – Overheated CPU (Check the CPU fan for proper operation. Check the case for proper air flow.)
  • Repeating High/Low – CPU (Either the CPU is not seated properly or the CPU is damaged. May also be due to excess heat. Check the CPU fan or BIOS settings for proper fan speed.)

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