Technical Product Specification

Intel® Server Boards S4600LH2/T2 TPS Appendix E: POST Code ErrorsAppendix E: Post Code Errors
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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. For complete details, refer to the BIOS for PCSD Platforms based on
Intel® Xeon® processor E5 4600/2600/2400/1600 Product Families External Product Specification– IBL
Document ID #476637.
Table 75. POST Error Beep Codes
Beeps
Error Message
POST Progress Code
Description
1 USB device action
NA
Short beep sounded whenever a 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
See Tables 70, 71, 72, and
73.
System halted because a fatal error related to the memory
was detected.
2
BIOS Recovery
started
0xF4
Recovery boot has been initiated.
4
BIOS Recovery
failure
NA
BIOS recovery has failed. This typically happens so quickly
after recovery us 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. For complete details, refer to the PSCD Platforms Based on
the Intel® Xeon® Product Specification, IBL Document ID #474403.
Table 76. Integrated BMC Beep Codes
Code
Reason for Beep
Associated Sensors
1-5-2-1
No CPUs installed or first CPU socket is
empty.
CPU1 socket is empty, or sockets are populated
incorrectly
CPU1 must be populated before CPU2.
1-5-2-4
MSID Mismatch
MSID mismatch occurs if a processor is installed into a
system board that has incompatible power capabilities.
1-5-4-2
Power fault
DC power unexpectedly lost (power good dropout) –
Power unit sensors report power unit failure offset
1-5-4-4
Power control fault (power good assertion
timeout).
Power good assertion timeout – Power unit sensors
report soft power control failure offset
1-5-1-2
VR Watchdog Timer sensor assertion
VR controller DC power on sequence was not
completed in time.
1-5-1-4
Power Supply Status
The system does not power on or unexpectedly powers
off and a Power Supply Unit (PSU) is present that is an
incompatible model with one or more other PSUs in the
system.