IntelĀ® Server Board S1200BT Service Guide 105
Table 10. POST Error Beep Codes
In the case of POST error(s) that are listed as Major, the BIOS enters the error manager 
and waits for the user to press an appropriate key before booting the operating system or 
entering the BIOS Setup.
The user can override this option by setting the POST Error Pause option as disabled on 
the BIOS setup Main screen. If this option is disabled, the system boots the operating 
system without user intervention. The default is disabled.
Beeps Error Message
POST Progress 
Code
Description
3 Memory error Multiple System halted because a fatal error related to the 
memory was detected.
The following Beep Codes are from the BMC, and are controlled by the Firmware team. They are listed here for 
convenience.
1-5-2-1 CPU socket 
population error
N/A CPU1 socket is empty.
1-5-2-4 MSID Mismatch N/A MSID mismatch occurs if a processor is installed 
into a system board that has incompatible power 
capabilities.
1-5-4-2 Power fault N/A DC power unexpectedly lost (power good dropout) 
- Power unit sensors report power unit failure offset
1-5-4-4 Power control fault N/A Power good assertion timeout - Power unit sensors 
report soft power control failure offset