Diagnostic Lights And Audible Codes
For HP
For HP
Category | Major/minor code | Issue description | Troubleshooting steps |
BIOS | 2.2 | The main area (DXE) of BIOS has become corrupted and no recovery binary image is available. Also happens when updating BIOS. | Typically no steps needed.
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BIOS | 2.3 | The embedded controller policy requires the user to enter a key sequence. |
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BIOS | 2.4 | The embedded controller is checking or recovering the boot block. |
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Hardware | 3.2 | The embedded controller has timed out waiting for BIOS to return from memory initialization. | Indicates potential memory failure.
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Hardware | 3.3 | The embedded controller has timed out waiting for BIOS to return from graphics initialization. | Indicates potential graphics chip failure. For integrated configuration:
For non-integrated configuration:
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Hardware | 3.4 | The system board displays a power failure (crowbar).* | Indicates potential power system failure.
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Hardware | 3.5 | The processor is not detected.* | Indicates potential CPU failure.
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Hardware | 3.6 | The processor does not support an enabled feature. | CPU being asked to support feature it does not have.
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Thermal | 4.2 | A processor over temperature condition detected.* | CPU overheat detected.
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Thermal | 4.3 | An ambient temperature over temperature condition detected. | Computer overall temperature is too high.
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Thermal | 4.4 | An MXM over temperature condition has been detected. | The MXM Graphics card has overheated.
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System Board | 5.2 | The embedded controller cannot find valid firmware. | Controller is missing appropriate ROM.
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System Board | 5.3 | The embedded controller has timed out waiting for the BIOS. | Component is not reachable by BIOS in certain time limit.
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System Board | 5.4 | The embedded controller has timed out waiting for BIOS to return from system board initialization. | System board isn’t initializing quickly enough for component.
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