Table 14. Post Error Beep Codes - Intel P4304XXMFEN2 Service Manual

Intel ® Server Chassis P4304XXMFEN2/P4304XXMUXX Product Family System Integration and Service Guide
POST Error Beep Codes
The following table lists the POST error beep codes. Prior to system video initialization, the BIOS uses these
beep codes to inform users on error conditions. The beep code is followed by a user-visible code on the POST
Progress LEDs.
Beeps Error Message
1 USB device action
1 long Intel® TXT security
violation
3 Memory error
3 long CPU mismatch
and 1 error
The following Beep Codes are sounded during BIOS Recovery.
2 Recovery started
4 Recovery failed
The Integrated BMC may generate beep codes upon detection of failure conditions. Beep codes are sounded
each time the problem is discovered, such as on each power-up attempt, but are not sounded continuously.
Codes that are common across all Intel server boards and systems that use same generation chipset are listed
in the following table. Each digit in the code is represented by a sequence of beeps whose count is equal to
the digit.

Table 14. Post Error Beep Codes

POST Progress Code
N/A
0xAE, 0xAF
Multiple
0xE5, 0xE6
N/A
N/A
Description
Short beep sounded whenever USB device is
discovered in POST, or inserted or removed during
runtime.
System halted because Intel
Technology detected a potential violation of system
security.
System halted because a fatal error related to the
memory was detected.
System halted because a fatal error related to the
CPU family/core/cache mismatch was detected.
Recovery boot has been initiated.
Recovery has failed. This typically happens so quickly
after recovery is initiated that it sounds like a 2-4
beep code.
® Trusted Execution
173