What are the POST beep codes/error messages?
POST Beep codes may vary from one system to the next. PC manufacturers buy the BIOS source code from us and are free to change the beep codes, but generally they do not. The BIOS usually beeps once at the end of POST to prove the speaker is working correctly (some manufacturers may modify or disable this feature). Note that add-on cards in your PC may issue beep codes during POST which are not directly associated with the BIOS. If you do not hear the beep code after removing an add-on card from your system, contact the card manufacturer for assistance.