Cooling fan 90B error E8A11UA (ENVY TouchSmart 17 PC)

[My19]

At the startup error message: 90B Cooling Fan is not operating correctly.   Notebook shuts down computer in 15 sec.  I do not hear or feel fan working.  I recently upgrated to Windows 10 Anniversary update.  No other changes.

Please advise the best coarse of action. 

Thak you

[CarlosE]

 Hi,

If the problem is not due to accumulation of dirt, you must replace the fan

HP Notebook PCs - System Fan (90b) error message on startup

720235-001 FAN

http://h10032.www1.hp.com/ctg/Manual/c03922401

https://www.amazon.com/HP-Cooling-720235-001-720539-001-6033B0032801/dp/B0146YJE5W

[My19]

Do I need to replace the heat sink? Do I need thermal paste ? If yes, what brand ,type?   Do you have a video with step  by step procedure to replace fan?

Thank you

[CarlosE]

According to the manual, the fan can be removed without removing the sink.

Check pages 85 and 86, there is detailed the procedure and previous steps:

http://h10032.www1.hp.com/ctg/Manual/c03922401

[My19 · Accepted solution]

I need to remove display panel before getting to fan.  Do  you have video, because the instructions are very skatchy

Thank you

[CarlosE]

There is one for m7-j120dx but this in Portuguese:

https://www.youtube.com/watch?v=y3HokB_pZ5k

[My19]

THANK YOU