BIOS Error Codes
AMIBIOS is a kind of BIOS manufactured by American Megatrends (AMI).
AwardBIOS is a kind of BIOS manufactured by Award, now owned by Phoenix Technologies.
Several custom implementations of the PhoenixBIOS system exist in many popular motherboards. The beep codes from a Phoenix-based BIOS may be exactly the same as the true Phoenix beep codes or they may vary.