Thread: BIOS Beep Codes List
View Single Post
  #1 (permalink)  
Old 02-28-2007, 06:34 PM
Sami's Avatar
Sami Sami is offline
Administrator
  
About:
Join Date: Jan 2006
Location: New Jersey
Posts: 804
Sami has a spectacular aura aboutSami has a spectacular aura aboutSami has a spectacular aura about

Default BIOS Beep Codes List

Beep Codes for the two most used brands AMI systems and Phoenix systems

AMI Beep Codes
  • 1 beep - DRAM refresh failure. There is a problem in the system memory or the motherboard.
  • 2 beeps - Memory parity error. The parity circuit is not working properly.
  • 3 beeps - Base 64K RAM failure. There is a problem with the first 64K of system memory.
  • 4 beeps - System timer not operational. There is problem with the timer(s) that control functions on the motherboard.
  • 5 beeps - Processor failure. The system CPU has failed.
  • 6 beeps - Gate A20/keyboard controller failure. The keyboard IC controller has failed, preventing gate A20 from switching the processor to protect mode.
  • 7 beeps - Virtual mode exception error.
  • 8 beeps - Video memory error. The BIOS cannot write to the frame buffer memory on the video card.
  • 9 beeps - ROM checksum error. The BIOS ROM chip on the motherboard is likely faulty.
  • 10 beeps - CMOS checksum error. Something on the motherboard is causing an error when trying to interact with the CMOS.
  • 11 beeps - Bad cache memory. An error in the level 2 cache memory.
  • 1 long beep, 2 short - Failure in the video system.
  • 1 long beep, 3 short - A failure has been detected in memory above 64K.
  • 1 long beep, 8 short - Display test failure.
  • Continuous beeping - A problem with the memory or video.
Phoenix Beep Codes

Phoenix uses sequences of beeps to indicate problems. The "-" between each number below indicates a pause between each beep sequence. For example, 1-2-3 indicates one beep, followed by a pause and two beeps, followed by a pause and three beeps. Phoenix version before 4.x use 3-beep codes, while Phoenix versions starting with 4.x use 4-beep codes.

4-Beep Codes
  • 1-1-1-3 Faulty CPU/motherboard. Verify real mode.
  • 1-1-2-1 Faulty CPU/motherboard.
  • 1-1-2-3 Faulty motherboard or one of its components.
  • 1-1-3-1 Faulty motherboard or one of its components. Initialize chipset registers with initial POST values.
  • 1-1-3-2 Faulty motherboard or one of its components.
  • 1-1-3-3 Faulty motherboard or one of its components. Initialize CPU registers.
  • 1-1-3-4 Failure in the first 64K of memory.
  • 1-1-4-1 Level 2 cache error.
  • 1-1-4-3 I/O port error.
  • 1-2-1-1 Power management error.
  • 1-2-1-3 Faulty motherboard or one of its components.
  • 1-2-2-1 Keyboard controller failure.
  • 1-2-2-3 BIOS ROM error.
  • 1-2-3-1 System timer error.
  • 1-2-3-3 DMA error.
  • 1-2-4-1 IRQ controller error.
  • 1-3-1-1 DRAM refresh error.
  • 1-3-1-3 A20 gate failure.
  • 1-3-2-1 Faulty motherboard or one of its components.
  • 1-3-3-1 Extended memory error.
  • 1-3-4-3 Error in first 1MB of system memory.
  • 1-4-2-4 CPU error.
  • 2-1-4-1 BIOS ROM shadow error.
  • 1-4-3-3 Level 2 cache error.
  • 2-1-1-1 Faulty motherboard or one of its components.
  • 2-1-2-1 IRQ failure.
  • 2-1-2-3 BIOS ROM error.
  • 2-1-3-2 I/O port failure.
  • 2-1-3-3 Video system failure.
  • 2-1-2-1 IRQ failure.
  • 2-1-2-3 BIOS ROM error.
  • 2-1-2-4 I/O port failure.
  • 2-2-1-1 Video card failure.
  • 2-2-2-3 Keyboard controller failure.
  • 2-2-3-1 IRQ error.
  • 2-2-4-1 Error in first 1MB of system memory.
  • 2-3-3-3 Extended memory failure.
  • 2-3-2-1 Faulty motherboard or one of its components.
  • 2-3-3-1 Level 2 cache error.
  • 2-3-4-3 Motherboard or video card failure.
  • 2-4-1-1 Motherboard or video card failure.
  • 2-4-1-3 Faulty motherboard or one of its components.
  • 2-4-2-1 RTC error.
  • 2-4-2-3 Keyboard controller error.
  • 2-4-4-1 IRQ error.
  • 3-1-2-3 I/O port error.
  • 3-1-3-3 Faulty motherboard or one of its components.
  • 3-2-1-2 Floppy drive or hard drive failure.
  • 3-2-1-3 Faulty motherboard or one of its components.
  • 3-2-2-1 Keyboard controller error.
  • 3-2-4-1 Faulty motherboard or one of its components.
  • 3-2-4-3 IRQ error.
  • 3-3-1-1 RTC error.
  • 3-3-1-3 Key lock error.
  • 3-3-3-3 Faulty motherboard or one of its components.
  • 3-4-4-4 Faulty motherboard or one of its components.
  • 4-1-1-1 Floppy drive or hard drive failure.
  • 4-2-2-1 IRQ failure.
  • 4-2-4-1 Faulty motherboard or one of its components.
  • 4-2-4-3 Keyboard controller error.
  • 4-3-4-3 Faulty motherboard or one of its components.
  • 4-3-3-4 IRQ failure.
  • 4-3-4-2 Floppy drive or hard drive failure.
3-Beep Codes
  • 1-1-2 Faulty CPU/motherboard.
  • 1-1-3 Faulty motherboard/CMOS read-write failure.
  • 1-1-4 Faulty BIOS/BIOS ROM checksum error.
  • 1-2-1 System timer not operational. There is a problem with the timer(s) that control functions on the motherboard.
  • 1-2-3 Faulty motherboard/DMA failure.
  • 1-3-1 Memory refresh failure.
  • 1-3-4 Failure in the first 64K of memory.
  • 1-4-1 Address line failure.
  • 1-4-2 Parity RAM failure.
  • 1-4-3 Timer failure.
  • 1-4-4 NMI port failure.
  • 2-_-_ Any combination of beeps after 2 indicates a failure in the first 64K of memory.
  • 3-1-1 Master DMA failure.
  • 3-1-2 Slave DMA failure.
  • 3-1-4 Interrupt controller failure.
  • 3-2-4 Keyboard controller failure.
  • 3-3-2 CMOS error.
  • 3-3-4 Video card failure.
  • 3-4-1 Video card failure.
  • 4-2-1 Timer failure.
  • 4-2-2 CMOS shutdown failure.
  • 4-2-3 Gate A20 failure.
  • 4-2-4 Unexpected interrupt in protected mode.
  • 4-3-1 RAM test failure.
  • 4-3-3 Timer failure.
  • 4-3-4 Time of day clock failure.
  • 4-4-1 Serial port failure.
  • 4-4-2 Parallel port failure.
  • 4-4-3 Math coprocessor.



Reply With Quote