Question loud gpu fan

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Brandon Tran

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Mar 19, 2021
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ok so i got a new gpu for christmas from my cousin and opened my pc to switch it. it was a 1660 ti switching fro a gtx 750 but it didn’t fit because i have a special case called ASUS Rog g20aj. so when i put the gtx 750 back in and plugged my pc back in, this insanely loud noise was emmiting from my pc. i knew it was the fans but it didnt happen before so i took it apart again and checked to see if there was anything wrong. nothing. so i plugged it back in and the noise was still there. i eventually marked it down to the gpu fan. i spun the gpu fan continuously and it was the problem. the same exact noise was coming from the gpu fan. i researched and am considering undervolting. but idk if this will help the noise because the original fan sounds like it. what should i do? i actually can’t deal with the noise it sounds like a ww2 machine gun.
 
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If it wasn't doing it before and is doing it now then it is something you did. Either the wiring going to the fan on that card is hitting the fan blades, or the shroud around the fan has gotten crushed in to where it's interfering, or something along those lines. Something has to be hitting something or the fan bearing has failed, in order for it to sound like a machine gun.

Is it like a rat-tat-tat-tat-tat or what? Recording the noise and posting it would be helpful too. But honestly I think you need to simply check more closely. Look to make sure that nothing can interfere with the fan on the graphics card inside the case. Pull the card and check it very closely to make sure absolutely nothing is interfering with the fan blades. That is really the only things that could be happening unless you somehow crushed the fan itself sideways and it is now hitting it's own shroud or the PCB on the card, or the bearing has failed.

If you have the 1660 ti and can return it for a refund or exchange it, assuming it's new, you might be able to find another, newer reference model card that is single slot to replace it with. If it's used, you might be able to find somebody with one to trade it for.
 
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Were you able to boot with the new GPU? If so the system may have tried to automatically install drivers that don't agree with what you reverted back to.. If you boot to bios/uefi does the loud fan continue there? If so that might point to a physical issue such as hardware issue or even cable management.

Take a look at what your sensors think the temperature is to confirm they don't think the device is overheating.
 
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There is no way they could have even installed the new graphics card. ONLY single slot reference cards or low profile single slot cards will fit that machine/case. Besides which, nothing of what you've suggested has anything to do with "machine gun" sounds coming from the graphics card.

g20_01.jpg
 
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I'd say with almost 100% certainty that there is a serious problem there. I can't tell for sure, but it definitely SOUNDS like the fan bearing has failed or that something is rubbing continuously. I'd pull the card and find the problem. If you continue to run the machine like that you will without any doubt end up with a much bigger problem than you have now.

And I'd start by cleaning that case out. Beg, borrow or steal (Well, don't steal) an air compressor and if you are uncertain, find an online tutorial on blowing your case and hardware out to get rid of the dust. Or get several cans of store bought compressed air. It's very possible this could even be related to why your graphics card sounds that way if it's full of dust too, which can definitely cause fan bearing failure. In any case, something is SERIOUSLY wrong and ignoring it to play games is a good way to ensure you end up not having a system at all anymore.
 
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Darkbreeze said:
I'd say with almost 100% certainty that there is a serious problem there. I can't tell for sure, but it definitely SOUNDS like the fan bearing has failed or that something is rubbing continuously. I'd pull the card and find the problem. If you continue to run the machine like that you will without any doubt end up with a much bigger problem than you have now.

And I'd start by cleaning that case out. Beg, borrow or steal (Well, don't steal) an air compressor and if you are uncertain, find an online tutorial on blowing your case and hardware out to get rid of the dust. Or get several cans of store bought compressed air. It's very possible this could even be related to why your graphics card sounds that way if it's full of dust too, which can definitely cause fan bearing failure. In any case, something is SERIOUSLY wrong and ignoring it to play games is a good way to ensure you end up not having a system at all anymore.
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yeah i opened up the pc like a total of 15 times tdy to see what it was and even though i knew it was the gpu, i couldnt visibly see anything. i tried to use a big fan to get rid of the dust but it didnt work very well. i think i will try to get an air compressor to clean it out. i am going to specifically just focus on the gpu because i plugged in the pc alone without the gpu and the noise was gone. any suggestions on what to look for specifically? i dont visually see anything in the way of the fan blades and i dont know what a fan “bearing” is. i will open it up tmr morning and put a end to this. im still sad the 1660 ti couldnt fit in the case too.
 
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also when i started to let it run a bit and played a game it got less loud, like without headphones it was still annoying but it sounded kind of normal? i bought this used and have been using it for 3 years already so its not unexpected for the fan to be loud.
 
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The fan bearing can be of several different designs. Some are simply a bronze bushing soaked in a lubricant that the center shaft of the fan rides in and some are a ball bearing. There are many types of bearings but they are all the thing that the center shaft (impeller) of the fan itself sits in to keep it centered and when it fails you have metal on metal that is aggressively grinding on each other in most cases.

This might explain it better. Honestly, this is the first time I've encountered anybody who didn't know what a bearing was. No offense.

https://gamersnexus.net/guides/779-computer-case-fan-bearing-differences
 
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Not according to this. This is taken from a review of your exact machine pretty much.

Despite its dimensions, the ROG G20 manages to hold a full-size, double-width graphics card. Asus says it can accommodate up to an Nvidia GeForce GTX 780( at Amazon) card, two steps up from the Nvidia GTX 760 card in our review unit. The card is mounted on a riser connected to the motherboard and rotated 90 degrees, which is how Asus is able to place the full-height card in a system that would otherwise have trouble fitting half-height cards.
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https://www.pcmag.com/reviews/asus-republic-of-gamers-g20-g20aj-us009s


And that card is a standard height two slot card. So based on that review, it SHOULD be able to fit.

Now, whether your current power supply will support it or not is another story.
 
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i mean my power supply can support it because it has 2 power bricks to connect to but maybe im inserting the card into the holder wrong? i doubt it though because when i put the gtx 750 in, it slides in perfectly and im doing the exact same thing with the bigger card. i can show you a video of it not fitting in the slot if you want. i even tried to fit the graphics card in the space given without the holder and it wouldn’t fit in the case.
 
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You're right, it's too tall. It must be because either it's not a reference model, which might be shorter, or because standard card height is taller now than it was when that review and when that machine were still fairly new. So again, you will probably want to look around and find a card that is suitable and short enough to fit in that adapter bracket, and maybe sell the card you have now and buy one that will fit or trade for one. Or it might just be time to sell the whole thing and look at building something in a case that you can actually do something with.

View: https://www.youtube.com/watch?v=qNXwfOpvZLQ
 
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Darkbreeze said:
You're right, it's too tall. It must be because either it's not a reference model, which might be shorter, or because standard card height is taller now than it was when that review and when that machine were still fairly new. So again, you will probably want to look around and find a card that is suitable and short enough to fit in that adapter bracket, and maybe sell the card you have now and buy one that will fit or trade for one. Or it might just be time to sell the whole thing and look at building something in a case that you can actually do something with.

View: https://www.youtube.com/watch?v=qNXwfOpvZLQ
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yeah thats what i will be doing, either right now i will trade my 1660 ti with my friend who ha a 1070 which im fairly certain will fit or sell it and add to my budget of building my own gaming pc in june. im gonna be making another thread on that gaming pc to see if i need to change anything about it but i feel like i picked the best parts for the budget.
 
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