What's the problem with a fan that makes noise immediately after turning on the PC at a frequency of ~ 10 seconds?

Question

Iron

Hello!
For the past 6 months I have had such a problem (yes, I waited as long as possible: D).
Every 6-15 seconds the fan on the video card makes noise for 2-5 seconds. The audio recording is attached at the link below.
The computer is two years old. When the problem first appeared, it made noise only when the computer was turned on and off 5 times, no more. And the further - the more noisy. Now, during operation, this is constant, and with it completely without load. It's definitely not the dust, since during the recent cleaning, the dust was not found in the fan area, and this did not help either.
Noise appears from the fact that the fan starts to work - i.e. It doesn't run all the time, it just turns on intermittently.
The temperature also has nothing to do with it - once it starts right away when you turn it on.
I can provide additional information if required.
Video card - asus gtx 960 4gb
Lullaby:
https://drive.google.com/open?id=1nrhAoUZelYZ6aDQW...
PS AIDA sees changes in speed - from 0 to ~ 3500 accelerates
PS After I disabled this discrete video card through the Manager devices, its fan was noisy for 20 seconds, gradually reducing the volume until it stopped. Fully

Answer 1

Smells like dried thermal paste. Look at the temperature graphs, if the temperature rises sharply in the load, the temperature rises sharply, then the problem is in cooling.

Answer 2

Check fan speed settings in BIOS.

Answer 3

Or maybe just try to fix the fan schedule? Let it not stop at all, but quietly spin itself, dissipating a little heat, then it will not have to turn on to its fullest for these miserable 5 seconds.