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- HP Community
- Notebooks
- Notebook Boot and Lockup
- boot error

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07-18-2021 06:13 AM
Hello Everyone,
Problem issue:
When booting, the following message appears: Post error: System Error 90b Error with the ventilation. The device starts with luck in one of 10 attempts but then reports after some time that it is switched off due to overheating. Fan very loud.
Thank you.
07-19-2021 02:43 AM - edited 07-19-2021 03:14 AM
I'd say check the fan yourself, or hand it over to a technician for help.
Dust is most likely the cause of this since your fan is still spinning well as you described.
If you wait for a long time the chance of it turning on might increase due to the time left for it to cooldown.
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(Please mark "accept as solution" if this helped!)
(I am a new member and I do not work for HP)