Is it normal for a video card cooler to make noise with a crunch at high speeds?

Question

Video cards

At high speeds - above 2200rpm / 81%, one of the video card coolers makes noise.

Noise only in tests under load of the video card, in individual games with disabled v-sync and when manually setting the speed through MSI AFTERBURNER (> 80%). Above 70-71 degrees is not heated. When 100% of the load is removed, it instantly (1-2 seconds) subsides. The fact that one of the coolers makes noise is subjective. The body is sealed.

It's not the noise itself that confuses, but the characteristic crackling after 80% a la kettle / hard drive instead of a monotonous increase in noise from the blades. This happened on old processor coolers, when the problem was solved either by lubricating or replacing the cooler. It's the same here, only at high speeds.

Is this normal or is it under warranty?

Video card GIGABYTE nVidia GeForce GTX 1660TI , GV-N166TOC-6GD. Two coolers
https://www.citilink.ru/catalog/computers_and_note...
Now I understand that maybe I should have chosen a card with better cooling.

Answer 1

If the case is sealed, with all questions to the assemblers. Demonstrate the problem, let them open it and look. And then later the failure of the vidyuhi will turn out to be non-warranty: a foreign object got into the cooler, jammed and overheated.
As an option - call and get a sanction for an autopsy. I do this with my work computers. I call, negotiate, open it and, say, send one memory bar for replacement, and not the entire computer. The computer remains in operation.

Answer 2

remove the cooler - disassemble - clean - lubricate - assemble - put in place.
var2: buy a new one / screw another one.