[AYTRIX Technologies]

Many problems can be diagnosed from any beep codes that be heard from your PC. while every BIOS has its own unique set of codes have listed the IBM standard codes which other BIOS manufacturers have loosly based theres on.

IBM Desktop BIOS Beep Codes
IBM Thinkpad BIOS Beep Codes



IBM Desktop BIOS Beep Codes:

Beeps
Error Message
Description

1 short Normal POST System is booting properly
2 short Initialization error Error code is displayed
1 long, 1 short System board error
1 long, 2 short Video adapter error
1 long, 3 short EGA/VGA adapter error
3 long 3270 keyboard adapter error
Continuous Power supply error Replace the power supply
999s Power supply error Replace the power supply
No beep Power supply Replace the power supply

IBM Thinkpad BIOS Beep Codes:

Beeps/Error
Description

Continuous beeping System board failure
One beep; Unreadable, blank or flashing LCD LCD connector problem; LCD backlight inverter failure; video adapter faulty; LCD assembly faulty; System board failure; power supply failure
One beep; Message "Unable to access boot source" Boot device failure; system board failure
One long, two short beeps System board failure; Video adapter problem; LCD assembly failure
One long, four short beeps Low battery voltage
One beep every second Low battery voltage
Two short beeps with error codes POST error message
Two short beeps System board failure


Quit hard to understand from here so below are the links for all the BIOS Beep Codes. locate your BIOS and click on the link:

IDM Beep Codes http://bioscentral.com/beepcodes/ibmbeep.htm

AMI Beep Codes
http://bioscentral.com/beepcodes/amibeep.htm

AST Beep Codes
http://bioscentral.com/beepcodes/astbeep.htm

Award Beep Codes
http://bioscentral.com/beepcodes/awardbeep.htm

Compaq Beep Codes
http://bioscentral.com/beepcodes/compaqbeep.htm

MyLex Beep Codes
http://bioscentral.com/beepcodes/mylexbeep.htm

Phoenix Beep Codes
http://bioscentral.com/beepcodes/phoenixbeep.htm

QuadTel Beep Codes
http://bioscentral.com/beepcodes/quadtelbeep.htm


The site with these BIOS codes also has LOTS of other info for diagnostic purposes aswell mainly to do with BIOS.

james