Fan speed for Asus Zenbook UX433FA


Looks a great product.
Question - where can I find the info on the Fan Speed of my Asus Zenbook UX433FA?
I have exported the report to HTML and searched its source, but cannot see any mention of "Fan".

This machine has BIOS Version: UX433FA.309 15-July-2019

I have another utility which is able to show Fan speed, so I presume the Fan RPM is available for some sensor.
SpeedFan v4.52 from

fyi - The Search on this Forum does not accept a search string like "Fan" or "Fan RPM"


Thanks for info. Regret I don't have any knowledge of the hardware at that level. I have looked at the SpeedFan website which has a database of motherboards etc.

That project is not open source, but the author clearly has a deep understanding of issues around the control of fan - and explains how this has been approached
Though I am not sure if the project is still being maintained - last updates of website in 2020 I think.


Kudos for taking on this kind of task - though I fear it might be somewhat akin to "boil the oceans" given the diversity of hardware around.

See attached files as per your post.
* Zip file consisting of three files
* The HWINFO report, saved as HTML
* RWEverything file saved from the EC option
* Once with fan stopped
* Once with fan at 855 RPM

Additional Info on fan speed according to "Speedfan" utility
* Speedfan screenshot showing that this utility has an oddity in how it reports the fan speed when fan is not running.
* When the fan is stationary it reports the fan at 4,294,967,296 RPM (which is 2^32).



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HWiNFO Author
Staff member
Thank you for the data. Unfortunately this model is somehow strange as both EC dumps you attached are empty (all fields are 0's), so I'm sorry but I don't know how to read the fan speed here :(


Kk. Possible i ran RWE wrongly?

This was first time I have used RWEverything.

With the RWE app i first installed the 64but version . Then I opened it, and clicked the EC button in the app toolbar. Was that sufficient?

Should I have run RWE as Admin?
(Speedfan runs as admin)


HWiNFO Author
Staff member
RWE should be definitely run as Admin, I though it's automatically asking for it.