Pavilion 570-p010ng CPU fan issue

[arknight]

Blue screen error message on startup CPU fan 90B error.  Fan over-speeds (makes it noisy) for 2 seconds and then coasts to a stop.  This repeats after 7 seconds adinfinitum.  Cleared any sign of dust and updated the BIOS to the last available version (27.08.2022).  Windows and apps run normally when I start Windows instead of letting it shut down. all internal temperatures seem normal (29-31degC, CPU 50degC).  Removed CPU heatsink/fan assembly - in good contact with CPU and thermal heat sink compound well squashed.

[Prométhée · Accepted solution]

hi

Sometimes it's a problem with the fan, and it needs to be replaced.
Sometimes a bios update can fix this, but already done
You removed the set
"Removed CPU heatsink/fan assembly - in good contact with CPU and thermal heat sink compound well squashed."
in this case I did not quite understand, but you must replace the thermal paste
But so with everything you seem to have already tested, only the new fan remains

https://support.hp.com/us-en/document/c03620929

[arknight]

Thanks for the fast answer.

"Removed CPU heatsink/fan assembly - in good contact with CPU and thermal heat sink compound well squashed." - by that i mean that i removed the heatsink, cleared off the old thermal paste and put on new, it decreased the cpu temperature by about 5 degC but didnt resolve my main problem.

If a new fan is needed, do you maybe know where i can buy one?

Thanks

[Prométhée]

You just have to look at the reference and buy the same, by searching with google for example

see if there is a reference directly on the fan, unless you buy another compatible model