Code Clignotement LED sur les PC

BIOS

2.2 (blink)

The main area (DXE) of BIOS has become corrupted, and there is no recovery binary image available. (Also happens when updating the BIOS.)

Perform BIOS recovery with external media (USB or CD-ROM). Go to HP Notebook PCs - Recovering the BIOS for additional information.

BIOS

2.3 (blink)

The embedded controller policy requires the user to enter a key sequence.

Disconnect the power supply and power the computer with battery power. This resets the Embedded Controller/Keyboard Controller.

1. Unplug the AC power from the computer.
2. Press and hold the power button for more than 12 seconds.
3. Release the power button (after at least 12 seconds).
   The computer powers on and should boot normally.
4. Re-connect the AC power to the computer.

BIOS

2.4 (blink)

The embedded controller is checking or recovering the boot block.

Disconnect the power supply and power the computer with battery power. This resets the Embedded Controller/Keyboard Controller.

1. Unplug the AC power from the computer.
2. Press and hold the power button for more than 12 seconds.
3. Release the power button (after at least 12 seconds).
   The computer powers on and should boot normally.
4. Re-connect the AC power to the computer.

Hardware

3.2 (blink)

The embedded controller times out waiting for BIOS to return from memory initialization.

Reseat the memory. See the section Reseating memory modules in a notebook for more information.

If reseating the memory does not resolve the problem, try replacing the memory modules. You might also consider contacting support for repair due to a possible RAM or system board failure.

Hardware

3.3 (blink/beep)

The embedded controller times out waiting for BIOS to return from graphics initialization or if a graphics output device failed to initialize.

Contact support for repair due to graphics or video failure.

Hardware

3.4 (blink)

The system board displays a power failure.

Check the power cable connections. Verify that any external power adapter has sufficient capacity for the system.

Hardware

3.5 (blink)

The CPU is not detected.

Contact support for repair due to system board or CPU failure.

Thermal

4.2 (blink/beep)

A CPU overheating condition detected.*

Allow the computer to cool down, then go to the section Removing dust from the cooling areas in a notebook.

Thermal

4.3 (blink/beep)

An ambient temperature overheating condition detected.

If the error persists after cooling and cleaning the notebook, there might be heat-related damage to internal components. Contact support for repair.

Thermal

4.4 (blink/beep)

A GPU (graphics processing unit) overheating condition detected.

System board

5.2 (blink)

The embedded controller cannot find valid firmware.

Disconnect the power supply and power the computer with battery power. This resets the Embedded Controller/Keyboard Controller.

1. Unplug the AC power from the computer.
2. Press and hold the power button for more than 12 seconds.
3. Release the power button (after at least 12 seconds).
   The computer powers on and should boot normally.
4. Re-connect the AC power to the computer.

System board

5.3 (blink)

Pas de réponse du BIOS au controleur intégré (peut etre le processeur ?) dans le temps imparti
Source:The embedded controller times out waiting for the BIOS.

Remove all accessory devices from the notebook.

If the error code persists, contact support for possible repair.

System board

5.4 (blink/beep)

The embedded controller times out waiting for the BIOS to return from system board initialization (end of POST).