5.2 Beep Codes 
Fatal errors, which halt the boot process, are communicated through a series of audible 
beeps. For example, if the BIOS POST can initialize the video but an error occurs, an 
error message will be displayed. If it cannot display the message, it will report the error as 
a series of beeps. 
Beep codes that are used by AMIBIOS: 
Number of Beeps 
Memory refresh timer error 
2 Parity 
Main memory read / write test error 
Motherboard timer not operational 
5 Processor 
Keyboard controller BAT test error / No memory inserted 
General exception error / Non Reg / ECC DIMMs inserted 
8 Display 
ROM checksum error 
CMOS shutdown register read/write error 
Cache memory bad 
Troubleshooting BIOS Beep Codes 
Number of Beeps 
Trouble shooting action 
1, 2 or 3 
Reseat the memory, or replace with known good modules. 
Make sure they are Registered ECC. 
4 7, 9 11 
Fatal error indicating a serious problem with the system. 
Consult your system manufacturer. Before declaring the 
motherboard beyond all hope, eliminate the possibility of 
interference by a malfunctioning add in card. Remove all 
expansion cards except the video adapter.  
  If the beep codes are generated even when all other 
expansion cards are absent, the motherboard has a serious 
problem. Consult your system manufacturer. 
   If the beep codes are not generated when all other expansion 
cards are absent, one of the add in cards is causing the 
malfunction. Insert the cards back into the system one at a time 
until the problem happens again. This will reveal the 
malfunctioning add in card.  
If the system video adapter is an add in card, replace or reseat 
the video adapter. If the video adapter is an integrated part of 
the system board, the board may be faulty.  
Before contacting your vendor or Tyan Technical Support, be sure that you note as much 
as you can about the beep code length and order that you experience. Also, be ready with 
information regarding add in cards, drives and O/S to speed the support process and 
come to a quicker solution. 






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