GPU fan keeps revving up and down

[Dunn Pliskin]

I'm not sure if this is appropriate but, A while ago, I bought a used ASUS GTX 750 Ti which looks something like the photo I posted.
When I received it and installed drivers, It started making loud noises and then quiet all of the sudden over and over again, and continues on when my computer is on. I then found out it was the fan and I have tried using a custom fan curve as some people suggested but that didn't work as well.
My GPU works fine for the most bit but the fan revving at full speed and then turning off over and over is really annoying and I want to fan to stop doing it.

 

[N/A]

Try to Turn off the zero fan mode with the Asus software. It was possible on gigabyte, but I'm not aware about this one. When temperature reaches 55 it starts the fan at full speed instead of gradually ramping up and it's probably impossible to fix otherwise. As you happen to gravitate around 50 55 for your specific usage it will keep doing this.

 

[ThrashZone]

Hi,
Pretty old card
Have you replaced the thermal pads and paste yet ?

 

[kiriakost]

Red alert, Red alert, wrong Bios loaded...
Get GPU-Z software and research GPU current Bios details.

Prior the verification of original Bios in use, any of our advice's will be pointless.

 

[Dunn Pliskin]

Try to Turn off the zero fan mode with the Asus software. It was possible on gigabyte, but I'm not aware about this one. When temperature reaches 55 it starts the fan at full speed instead of gradually ramping up and it's probably impossible to fix otherwise. As you happen to gravitate around 50 55 for your specific usage it will keep doing this.

Where is this option? I cannot find it anywhere.

Hi,
Pretty old card
Have you replaced the thermal pads and paste yet ?

I have indeed.

Red alert, Red alert, wrong Bios loaded...
Get GPU-Z software and research GPU current Bios details.

Prior the verification of original Bios in use, any of our advice's will be pointless.

My BIOS version is 82.07.32.00.27

 

[Count von Schwalbe]

If it is a BIOS issue, you will need a screenshot of GPU-Z and a picture of the white sticker on the back of the card.

Preferably also a photo of the VRAM chips.

 

[Candor]

It might just need a re-paste.

 

[swirl09]

I had this happen on a 2080ti once, reseating it stopped it. Worth pointing out that the card was showing quite a bit of sagging and I added a support bracket - however that didnt arrive for a week, during which time no revving happened.

 

[Dunn Pliskin]

It might just need a re-paste.

I have done that if you have read above

 

[Argyr]

Where is this option? I cannot find it anywhere.

Button called "0dB Fan" right under "OC Scanner" on the home screen of GPU Tweak III. Needs to be in off position.

 

[Dunn Pliskin]

Button called "0dB Fan" right under "OC Scanner" on the home screen of GPU Tweak III. Needs to be in off position.

 

[Argyr]

looks like it's not supported by your card, weird.

 

[Dunn Pliskin]

If it is a BIOS issue, you will need a screenshot of GPU-Z and a picture of the white sticker on the back of the card.

Preferably also a photo of the VRAM chips.

 

[INSTG8R]

View attachment 280019View attachment 280020

Everything looks okay in GPUZ. With GPU Tweak have you tried just setting a set speed? say try 50% and then try using it and see if the temps are okay and the fan noise is tolerable and maybe work from there. I’m not familiar with the tool but it does appear to have an ”edit” function next to auto so per my previous advice you may be able to use that to set a curve yourself that would stop whatever the “Auto” weirdness your‘re experiencing
As for as its acting now have you monitored the temps while.this is happening to make sure there isn’t actually some kind of temp spikes making. It do this?

 

[Dunn Pliskin]

Everything looks okay in GPUZ. With GPU Tweak have you tried just setting a set speed? say try 50% and then try using it and see if the temps are okay and the fan noise is tolerable and maybe work from there. I’m not familiar with the tool but it does appear to have an ”edit” function next to auto so per my previous advice you may be able to use that to set a curve yourself that would stop whatever the “Auto” weirdness your‘re experiencing
As for as its acting now have you monitored the temps while.this is happening to make sure there isn’t actually some kind of temp spikes making. It do this?

I have tried setting up a speed but it would still keep revving unless I put it all the way to 100% speed.

 

[FreedomEclipse]

How good are you with basic tech skills?

You could dismantle the card - give it some new thermal paste and wiggle fan cables where it attaches and seats into the card to see if anything changes otherwise it could be one of two things...

1. the controller on the fan is gone.
2. the controller on the card is gone.

which leaves another two options...

1. buy a replacement fan assembly:

You can get them off ebay or aliexpress for cheap.

Alternatively. You can keep the same shroud and just replace the fan by inputting the model number into ebay or aliexpress - which can be found here on the back of the fan motor (the sticker) :

New fan looks like it clips right in.

2. GHETTO MOD:

It doesnt look very pretty but it will work and you can throw any old and dirty fan you have lying around on there with some zip ties. Probably the cheapest option as well as most people will have cheap fans lying around.

 

[Count von Schwalbe]

The only thing I can see that could be a concern is that the PCIe revision seems to be stuck at 1.1. if you can put a load (any benchmark will work) on the GPU and check GPU-Z again to make sure that it is not a power saving think, that will answer the VBIOS question.

 

[PLAfiller]

I'd say +1 @FreedomEclipse about the controller on the card. I had to fight the infamous issue on Gigabyte GTX970, that wouldn't control it's fans at all, straight to 100%. After what-not, simplest solution was to buy a cable adapter 4pin female from the card's fan to standard and just hooked it to my Lamptron or motherboard.

 

[eidairaman1]

Fan controller on gpu is toast, replace gpu and move forward.

 

[ThrashZone]

I have tried setting up a speed but it would still keep revving unless I put it all the way to 100% speed.

Hi,
How does it turn manually
Feel sticky or not smooth ?
Might just need some lube :/

 

[Veseleil]

Pull that shroud (with the fan) off, and toss it into the garbage can. Buy Arctic P12 PWM, strap it on the heatsink with w/e (zip ties?), and run the fan from the motherboard fan header. Use the FanControl (best option) to set a custom curve based off of a GPU temperature sensor, or just set it in the BIOS using the options available (limited option).

2. GHETTO MOD:

Yes sir.

 

[pavle]

Fan controller on gpu is toast...

He's got a point there. If you are up to it, disconnect the fan's cable from the card and remove the first two wires (black=GND and yellow=12V) from the connector, you do that by pushing on the little inclined tabs visible from one side of the connector with a piece of paperclip wire and pulling on the wire (no excess force).
You then connect these two wires into an IDE/molex connector (they fit tightly), that is yellow one into red part (5V) and black one into the black that is near red. Fan will happily spin at 5V and you can observe temperatures.
If of course the card might get too hot (nearing 80°C), you can connect fan's yellow to molex yellow and fan's black to molex red to get 7V fan voltage and higher RPM.
This way the card will work very well and serve its purpose.