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XII Beep, Beep
Maybe you remember that cartoon character,
Road Runner, letting Wiley E. Coyote lose again, with a "Beep-Beep",
and taking off.
If during the POST the computer finds
an issue, it tells you with a Beep-Beep.
POST is performed when a computer is first powered on. It cannot help you after a computer has successfully booted. Some troubleshooting issues may be caused by environmental factors such as 'dirty' power or excessive temperatures.
A Beep by any other BIOS
Not all BIOS manufactures use the same beep codes. Use a book like Bigelow's PC Technician's Troubleshooting Pocket Reference, to determine the beep code for particular BIOS.
A continuous short beep is a good indicator that the BIOS is corrupt.
There are many different BIOS manufacturers,
both great and small. American Megatrends Incorporated (AMI)
is one of the most popular BIOS manufacturers in use today.
AMI Beep Codes
CompTIA tests tend to focus on the "real world". If you were going to commit to memory beep codes, AMI would be a good choice.
In particular there are two different
beep codes that would be good for you to keep in memory, to save time.
Common Beep Codes
RAM Failure: AMI uses 1 long and 3 short beeps to indicate a RAM failure. (Typically in the first 64K).
Video Error: AMI uses 1 long and 8 short beeps to indicate a Video Display error. (System may still boot).
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CertiGuide to A+ (Core Hardware) (http://www.CertiGuide.com/aplush/) on CertiGuide.com
Version 1.0 - Version Date: December 6, 2004
Adapted with permission from a work created by Tcat Houser.
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