Error System fan 90B

[Lee1711]

When turning on my laptop I keep getting the error code 90B about the fan not working properly. Pressing enter does start the laptop but I'm concerned if I keep doing this it could create a problem. I've blown on all the two vents. 

Can't seem to find a solution and HP aren't helping. It's probably 18 months old but it's hardly used.

Many Thanks 

Lee

[Pallipurath]

Hi @Lee1711,

Welcome to the HP Support Community.

Thank you for posting your query.

I am sorry to hear that you see an error code "90B" usually indicates that the cooling fan is not operating correctly. This could lead to overheating problems if not addressed. I would request you to please follow the steps:

Perform a Hard Reset:

• Disconnect all external devices and unplug the AC adapter.
• Remove the battery (if detachable).
• Press and hold the power button for about 15 seconds.
• Reconnect the battery and AC adapter, and then turn the laptop on.

Update BIOS and Drivers:

• HP notes that outdated BIOS firmware can trigger false fan errors.
• Go to HP Support → Drivers & Downloads and install the latest BIOS update for your model
• Visit the HP Support website to download and install the latest drivers.

Run HP Diagnostics:

• Restart and press F2 (or Esc → F2) to enter HP PC Hardware Diagnostics.
• Run the System Fan Test to confirm if the fan is failing.
• Follow the on-screen instructions to run the fan test and check for any error codes
• Keep me posted with the test result.

Hope this helps, Please revert if the issue persists.

Take care and have an amazing day!

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Regards

Pallipurath.