Original IBM 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

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