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Intel Motherboards:
T440BX
VC820

  • Mylex BIOS Beep Codes
  • Mylex 386 BIOS Beep Codes

     

  • Mylex BIOS Beep Codes:

Beeps

Error Message

Description

1 Normal boot System is booting normally
2 Video adapter error The video adapter is either faulty or not seated properly.  Check the adapter
3 Keyboard controller error The keyboard controller IC is faulty.   Replace the IC if possible
4 Keyboard error The keyboard controller IC is faulty or the keyboard is faulty.  Replace the keyboard, if problem still persists, replace the keyboard controller IC
5 PIC 0 error The programmable interrupt controller is faulty.  Replace the IC if possible
6 PIC 1 error The programmable interrupt controller is faulty.  replace the IC if possible
7 DMA page register error The DMA controller IC is faulty.   Replace the IC if possible
8 RAM refresh error  
9 RAM data error  
10 RAM parity error  
11 DMA controller 0 error The DMA controller IC for channel 0 has failed
12 CMOS RAM error The CMOS RAM has failed
13 DMA controller 1 error The DMA controller IC for channel 1 has failed
14 CMOS RAM battery error The CMOS RAM battery has failed.   If possible, replace the CMOS or battery
15 CMOS RAM checksum error The CMOS RAM has failed.  If possible, replace the CMOS
16 BIOS ROM checksum error The BIOS ROM has failed.  If possible replace the BIOS or upgrade it

Mylex 386 BIOS Beep Codes:

Beeps

Error Message

Description

1 long Normal boot System is booting normally
2 long Video adapter failure Either the video adapter is faulty, not seated properly or is missing
1 long, 1 short, 1 long Keyboard controller error Either the keyboard controller IC is faulty or the system board circuitry is faulty
1 long, 2 short, 1 long Keyboard error Either the keyboard controller is faulty or the system board circuitry is faulty
1 long, 3 short, 1 long PIC 0 error The programmable interrupt controller IC is faulty
1 long 4 short, 1 long PIC 1 error The programmable interrupt controller IC is faulty
1 long, 5 short, 1 long DMA page register error The DMA controller IC 1 or 2 is faulty or the system board circuitry is faulty
1 long, 6 short, 1 long RAM refresh error  
1 long, 7 short, 1 long RAM data error  
1 long, 8 short, 1 long RAM parity error  
1 long, 9 short, 1 long DMA controller 1 error The DMA controller for channel 0 is faulty or the system board circuitry is faulty
1 long, 10 short, 1 long CMOS RAM error Either the CMOS RAM is faulty.   Replace the CMOS
1 long, 11 short, 1 long DMA controller 2 error The DMA controller for channel 1 is faulty or the system board circuitry is faulty
1 long, 12 short, 1 long CMOS RAM battery error The CMOS RAM battery is faulty or the CMOS RAM is bad.  Replace the battery if possible
1 long, 13 short, 1 long CMOS checksum error The CMOS RAM is faulty
1 long 14 short, 1 long BIOS ROM checksum failure The BIOS ROM checksum is faulty.   Replace the BIOS or upgrade

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