Intel® Server System M20MYP1UR System Integration and Service Guide
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Error Code
Error Message
Action message
Response
A001
TPM device missing or not responding
Minor
A002
TPM device failure
Minor
A003
TPM device failed self test
Minor
A100
BIOS ACM Error
Major
A421
PCI component encountered a SERR error
Fatal
A5A0
PCI Express component encountered a PERR error
Minor
A5A1
PCI Express component encountered an SERR error
Fatal
A6A0
DXE Boot Services driver: Not enough memory available
to shadow a Legacy Option ROM
Please disable OpRom at SETUP to save
runtime memory.
Minor
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.
Table 8. POST error beep codes
Beeps
Error Message
POST Progress Code
Description
1
USB device action N/A
Short beep sounded whenever USB device is discovered in POST, or
inserted or removed during runtime.
1 long
Intel® TXT security
violation
0xAE, 0xAF
System halted because Intel® Trusted Execution Technology
detected a potential violation of system security.
3
Memory error
Multiple
System halted because a fatal error related to the memory was
detected.
3 long
and 1
CPU mismatch
error
0xE5, 0xE6
System halted because a fatal error related to the CPU
family/core/cache mismatch was detected.
The following Beep Codes are sounded during BIOS Recovery.
2
Recovery started
N/A
Recovery boot has been initiated.
4
Recovery failed
N/A
Recovery has failed. This typically happens so quickly after recovery
is initiated that it sounds like a 2-4 beep code.
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.
