|Note||To obtain more information on beep code resolutions, refer to POST Code Diagnostics for the Intel® Server Board and Intel® Server System Product Families.|
Prior to system video initialization, the BIOS uses beep codes to inform you about error conditions. The beep code is followed by a user-visible code displayed on the Diagnostic LEDs.
|Note||Common supported codes are listed in these tables. For more platform-specific beep codes and POST Progress codes, refer to the Technical Product Specification (TPS) for your product. DIMM installation rules are also covered in the TPS.|
What are some common beep codes I should be aware of?
|1 short|| |
USB device action
Short beep sounded whenever USB device is discovered in POST, or inserted or removed during runtime.
|1 long|| |
Intel® Trusted Execution Technology (Intel® TXT) security violation
System halted because Intel® TXT detected a potential violation of system security.
|3 short|| |
|System halted because a fatal error related to the memory was detected.|
|3 long and 1 short1||CPU mismatch error||System halted because a fatal error related to the CPU family/core/cache mismatch was detected.|
|2 short||Recovery started||BIOS Recovery boot has been initiated.|
|4 short||Recovery failed||BIOS Recovery has failed. This failure typically happens so quickly after recovery is initiated that it sounds like a 2-4 beep code.|
1 This beep code only applies to the Intel® Server Boards and Intel® Server Systems supporting the Intel® Xeon® Processor E5-2600 v3 product family.
The Integrated BMC generates beep codes when it detects failure conditions. Beep codes are sounded each time the problem is discovered, such as with each power-up attempt, but are not sounded continuously. Each digit in the code represents the number of beeps in the sequence.
What are the beep codes from the Integrated BMC?
|1-5-2-1||CPU socket population error||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 unit sensors report soft power control failure offset.|
|1-5-1-2||VR Watchdog Timer||VR controller DC power on sequence not completed in time.|
|1-5-1-4||Power Supply Status||The system does not power on, or unexpectedly powers off. A Power Supply Unit (PSU) is present that is incompatible with one or more other PSUs in the system.|
|Troubleshooting Intel® Server System Boot Issues for Intel® Server Products|
|Basic Troubleshooting Guide for Intel® RAID Controller–Related Issues|
|Server BIOS Firmware|