Help with post error on fan

[Mutelo]

Help with the POST ERROR cooling fan

[Sneha_01]

Hi @Mutelo,

Welcome to HP Support Community.

Thank you for posting your query, I will be glad to help you.

If you’re encountering a POST (Power-On Self-Test) error related to the cooling fan on your HP laptop, it indicates that the system is detecting a problem with the fan or its operation during the boot process. Here’s a detailed guide to troubleshoot and resolve this issue:

1. Power Off and Inspect the Fan

• Turn Off the Laptop: Shut down your laptop completely and disconnect it from any power source.
• Inspect the Fan:
  • Physical Check: Open the laptop (refer to the user manual or online guides if you’re not familiar with how to open it). Check for any visible obstructions or dust blocking the fan.
  • Manual Spin: Gently try to spin the fan with a small tool or your finger. It should spin freely without resistance.

2. Reset the Laptop

• Hard Reset:
  • Disconnect the power adapter and remove the battery if it’s removable.
  • Press and hold the power button for about 15-30 seconds to discharge any residual power.
  • Reconnect the battery and power adapter, then try turning on the laptop again.

3. Check BIOS/UEFI Settings

• Enter BIOS/UEFI:
  • Restart your laptop and immediately press the appropriate key (usually F2, F10, Esc, or Del) to enter BIOS/UEFI settings.
  • Look for any settings related to the cooling fan or hardware monitoring. Sometimes, fan settings can be adjusted here.

4. Update or Reinstall BIOS

• BIOS Update:
  • Check the HP support website for any BIOS updates for your laptop model. Download and install the latest BIOS version if available.
  • Follow the manufacturer’s instructions carefully when updating the BIOS to avoid any potential issues.

5. Check and Reconnect Internal Connections

• Re-seat the Fan Connector:
  • With the laptop open, locate the fan connector on the motherboard. Ensure it’s securely connected. Disconnect and reconnect the connector to make sure it’s seated properly.
  • Check for any signs of damage to the connector or the fan cable.

6. Run Hardware Diagnostics

• HP Hardware Diagnostics:
  • HP laptops typically come with built-in diagnostics tools.
  • Restart the laptop and press F2 (or the key indicated for diagnostics) during startup to enter the diagnostics menu.
  • Run the system tests, especially the ones related to cooling and fans, to identify any hardware issues.

7. Update or Reinstall Drivers

• Fan Drivers:
  • While most fans are controlled directly by the hardware, ensure that all your chipset drivers are up to date. Sometimes, driver issues can affect fan operation.
  • Visit the HP support website and download the latest drivers for your model.

8. Check for Overheating Issues

• Clean the Laptop:
  • Dust and debris can clog the fan and heat sink, leading to overheating. Use compressed air to clean out the vents and fan.
  • Ensure the cooling system is functioning correctly and there are no blockages.

9. Consider Hardware Replacement

• Replace the Fan:
  • If the fan is not working correctly despite all troubleshooting, it might need to be replaced. Purchase a compatible fan for your laptop model and install it

I hope this helps.

Take care and have a good day.

Please mark this post as “Accepted Solution” if the issue is resolved and if you feel this reply was helpful click “Yes”.

Rachel571

HP Support