PhoenixBIOS is a kind of BIOS manufactured by Phoenix Technologies. A majority of modern motherboard manufacturers have integrated Phoenix Technologies' PhoenixBIOS into their systems.
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 below or they may vary. You can always check your motherboard manual to be sure.
Note: PhoenixBIOS beep codes are short, sound in quick succession, and usually sound immediately after powering on the PC.
1 Beep
A single beep from a Phoenix based BIOS is actually an "all systems clear" notification. Technically, it's an indication that the Power On Self Test is complete. No troubleshooting necessary!
1 Continuous Beep
1 Short Beep, 1 Long Beep
1 Long Beep, 2 Short Beeps
1-1-1-1 Beep Code Pattern
1-2-2-3 Beep Code Pattern
1-3-1-1 Beep Code Pattern
A 1-3-1-1 beep code pattern on a PhoenixBIOS system means that there has been an issue while testing the DRAM refresh. This could be a problem with the system memory, an expansion card, or the motherboard.
1-3-1-3 Beep Code Pattern
A 1-3-1-3 beep code pattern means that the 8742 keyboard controller test has failed. This usually means that there is a problem with the currently connected keyboard but it could also indicate a motherboard issue.
