I'm having a weird problem with my GPU fans.

When they start from 0 at the lower % (30%, gigabyte 2060 card) the fans spin and stop, like it doesn't have enough momentum to keep spinning.

At 40% they go normal and going back to 30% after that is okay too.

https://i.imgur.com/2ubYPPM.png

Red is when starting the test setting 30% with MSI afterburner, orange is 40% and yellow is 30% again.

This is from GPU-Z while idling/browsing:https://i.imgur.com/tzxux4d.gif

It seems to do it intermittently: https://i.imgur.com/7am3Mln.gif

What can I do??

EDIT: after some digging, it seems it's a know behaviour of the gpu.

https://www.techpowerup.com/forums/threads/gpu-fans-below-40-revving-up-and-down.278644/

https://forums.guru3d.com/threads/rtx-series-low-fan-speed-revving-noise-and-turn-on-off-problem.423708/

The video is exactly what happens to me and the results of 30% fan speed vs 40% are the same

Hello. I want to put my gpus fans at a low speed while idle just to keep the temp from reaching over 50 degrees. Card - (RTX 3060). Using MSI afterburner I set my fan curve and applied it, but for some reason the card keep speeding up then stopping over and over. Setting my fan speed to 50% speed minimum fixed this, but at that point the gpu fan can be heard over my case fans. I tried setting it to 40% speed and there was the same issue. My PC Specs are below if that helps

Motherboard - MSI PRO Z690-A DDR4

CPU - i5-12600k

GPU - Zotac RTX 3060

edit: I got a message from someone asking about this problem now but I accidentally deleted the chat and didnt see their username so I will add the solution here. It turns out zotac grahics cards cannot run below 45% speed at all. There is no way to bypass it so the best thing to do is make 45% the minimum speed on your curve. I believe other cards might also have a minimum speed but not as high.

So, I recently ordered Gigabyte RTX 2080 WindForce from Ebay. It hasn't arrived yet but I've read a lot of threads on the internet reporting fan issues. Basically, the graphics card fans will spin and stop continuously if fan speed is set below 30% speed (may vary on another card), it makes a creaking sound every time it starts from zero to the target speed. The way to solve this is to set a custom fan curve that allows it to run at 30%+.

Gigabyte reportedly considers this normal and I've read that other manufacturers variants suffer from it too.

But I think there might be an explanation behind it. Like how my old GTX 1080 FTW 2 (iCX) wouldn't let me pick anything lower than 25% speed in Afterburner. I'd like to know if this is how graphics cards normally operate or it is indeed an issue with WindForce coolers.

Thanks,

The problem: GPU fans will occasionally start ramping up very quickly then go back to "normal". The duration of this is usually one or two seconds, and they may happen multiple times in quick succession. This fan revving, RPM spikes, fan hiccups or fan "whoosh", whatever you want to call it, is quite common for Gigabyte's GPUs. It usually happens when the fans are entering or exiting fan stop mode. The noise they make is really loud, jet engine kinda loud, it's actually louder than 100% RPM. GPUz was reporting implausible RPM numbers, I once saw >130 thousand RPM. Regardless, it's annoying and not good for the longevity of the fans.

I didn't know this existed before buying my rtx 4090 Aorus master, despite doing a fair amount of research and asking on reddit. After wasting so many hours trying to fix it, I discovered that almost all Gigabyte GPUs from Pascal and later were affected. When googling for GPU fan revving, you can bet it's a gigabyte GPU (and rarely EVGA). Some people fixed their problem by repasting the GPU. While some of them experienced hot temperatures, others were having normal temperatures and still fixed it with a repasting, which is weird. I didn't want my card opened, and I was considering returning it since no solution I found online helped me.

How I solved it: So the golden rule is; there's a minimum RPM that the fans should spin at, and it's NOT what MSI Afterburner thinks it is. Yeah, it's not 30%, not even 55%, at least in my particular card on OC bios. If the RPM is manually set to 30% regardless of the temp, the fans spin for a second and stop, as if someone is giving them a shove. if it's 50%, the spin slowly for a more prolonged time, maybe half a minute and then they stop, then start and so forth. The insane revving happens during these periods of spin/no spin. It's as if the fans aren't getting the correct amount of electricity to spin at that number, then something overrides it and makes it spin to a million RPM. The "stable" minimum RPM for my card is 57% which is around 1100 RPM, at that number, the fan can spin with no issues.

But there's one more problem, your custom fan curve can still cause fan revving. When you set a custom fan curve in MSI AB, you should ensure that at absolutely no point in the entire curve should the RPM be set to anything between 1-56%. Ramp from fan stop to fan spinning (at least 57% RPM) should be perfectly perpendicular, like the fan curve in the image. In other words, If one node is at (45 degrees, 0 RPM) and the next one is at (50 degrees, 60% RPM) then at some temperature, the RPM will correspond to a value between 0 and 56%, and revving will happen. I also recommend around 5 degrees hysteresis. You can also disable fan stop and make a minimum 57% RPM (or whatever stable number you get on your card) on your fan curve.

TLDR; fan revving on a new gigabyte GPU is common and can be fixed with a custom fan curve, as in the image above. It's caused by gigabyte fans not responding properly below their minimum RPM.

It's really awful that when buying a premium AIB model for a premium card we get such an annoying problem that causes RMAs and unsatisfied customers. If Gigabyte couldn't design better fans and couldn't fix their own bad software, they should at least include a manual on how to avoid such problems, and maybe tell customers about it before they buy?

Edit: as u/VDtot mentioned here, using Gigabyte Control Center, you can actually make an angled fan curve with the left-most node at (0,0) and turn on "fan stop". This allows the fans to go as low as 800 RPM without revving. The only issue we found with that is, the fans will keep spinning until the GPU hotspot is less than 42 degrees. It can also make the 3rd fan start before the other 2, and sometimes start by itself if the temperature inside the case is sufficiently "high" for it to start.

Edit 2: After more testing, I tried disabling fan RGB. I really don't care about RGB at all, but I liked it because once it's on, i know the fans are on. Anyway, when I disable the RGB on the fans, I can get a stable ~700 RPM with no revving at all! even when i set the fans at a lower RPM, they don't go revving like crazy anymore! for me, this completely solves the problem.

Running a computer with: Windows 7 Ultimate Intel Core i5 3570k at base speed. Nvidia GeForce 770 GPU 16gb of Ram

And my GPU fan keeps revving up. It's consistent, probably about every few seconds it revs up to 100, then back down to base speed. I've attempted multiple things such as reinstalling drivers, rolling back drivers. Whenever the computer is booted to windows with no drivers installed, fans do not rev. Whenever in bios, fans do not rev. It is only when drivers are installed and booted to windows is that the fan revs.

GPU is cleaned off, no dust in it also. Made sure of that.

I've downloaded GPU-Z and left it monitoring and noticed an odd trend. The Fan Speed(%) always stays the same. But the Fan Speed(RPM) goes up and down. http://puu.sh/f4ABv/13fa7bb7ac.gif Like so.

Also tried using Afterburner to manually control fan speed, but it still continues to rev even if I force it to a certain speed.

Was wondering if anyone had any idea what was going on. Is my GPU dying, or is something uninstalled wrong?