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1 GPU fan stuck at 100%, other fan tries to spin but can't... is this a fan or sensor failure?

I've noticed in the last week that the fan noise has been crazy sometimes with my 3080. I've been trying everything I can think of this morning but haven't gotten anywhere...

 

All 3 fans spin fine and normally from a completely cold boot and then turns off as normal with the 0db mode. Temps are all normal ~38-40C idle.

If I start a game or some kind of load and the fans eventually kick as they should, the fan noise is incredibly loud. Looking at it the 1st (left) fan is spinning crazy at 100% full blast, middle fan seems to spin normally and the 3rd (right) fan is not spinning (or does the occasional twitch to look like it's trying to spin). This also happens when I try to set a static fan speed in Afterburner after the fans have switched off or a custom fan curve from startup even at system idle.

This is what it looks like: https://streamable.com/9fy3u4

 

There's nothing obstructing the fan to prevent it from spinning. When I start from a cold boot and set the fan speed to like 60% it can sometimes continue to spin fine at idle. If I then add a load to the GPU like Heaven or a game, the right fan spins until the GPU hits ~56-57C and then stops causing the first to spin at 100%. From what I've read it seems like the fan sensor for 1st and 3rd fans on the TUF 3080 are the same? Seeing as the fan can spin normally from a cold boot until a certain temperature - is this more likely to be a failing sensor rather than fan or something like a loose connection?

 

This seems more like a hardware issues rather than software... do I have any other options or will I need to RMA? 😞

 

I haven't made any recent changes to my system - Ryzen 7 3700x, ASUS TUF RTX 3080, 32gb 3200mhz DDR4.

Windows 10. Nvidia driver 466.77 (reinstalled already using DDU). vBIOS version 94.02.42.40.64 (or v4.0 on ASUS website, it doesn't let me install v5.0) installed in April when Resizeable BAR came out.

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Sounds like what one of my graphics cards does when one fan is stuck, only one fan feeds speed so when it's stopped the other goes full blast.

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6 minutes ago, Bitter said:

Sounds like what one of my graphics cards does when one fan is stuck, only one fan feeds speed so when it's stopped the other goes full blast.

That's what I thought too when I tried looking up this problem but there's nothing obstructing the fans that I can see to prevent it from spinning 

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sounds like firmware issue if the fan spins just fine on startup but doesnt spin under load

 

is there significantly more resistance to the fan?

My PCs: Desky | Beddie | Miney | Benchie

Things I need help with: (nothing at the moment)

Spoiler

none atm

I hate Intel's pricing, Ryzen's weird quirks, Nvidia's pricing, and Radeon GPUs in general

Spoiler

Products I like:

Spoiler

Sony Xperia Z1 / Z2 / 10 ii, Asus Strix 970 / 1070, Samsung SSD, WD HDD, Corsair PSUs (AX, RM, CX(grey)), GeForce GPU, NZXT N450/S340, be quiet! Coolers, G.Skill Trident RAM, Logitech M525, Logitech G440, Razer Deathadder Elite

Products I hate:

Spoiler

Xperia Z3, XiaoMi 5c, Radeon GPUs, Razer Audio Products, any bloatwares

Companies I absolutely adore: (and hope it stays that way)

Spoiler

be quiet! - sent me AM4 mounting for my DRP3 even though it's way past the timeframe stated, no questions asked

Corsair - very good RMA experience, absolutely recommend

Companies I hate:

Spoiler

Nvidia, Intel, Apple, TMT (Thundermatch, a retailer)

Personal Blacklisted Companies:

Spoiler

Acer: shit tier quality products, shit tier customer service thus far, they "tried" to solve my issue but they arent really doing anything but delaying and delaying. (on-going case since July)

Gigabyte: horrible customer service (gigabyte had literally 0 customer service, asked me to go to retailer with NO WAY to email them about a question) but at least they fixed my shit in ONE MONTH (would probably take me 1 hour to fix if they let me email them)

XiaoMi Phones: built like a tank but the software is buggy as all hell

Seagate HDD: had too many dead seagate drives

Kingston SSD: 300V controller swap thingy

Razer (except their mouse)

Remember, just because I had good/bad experiences with these companies/product, doesn't mean you will have similar experiences too. I would still recommend these products if they made sense for your needs, but I'll add a disclaimer of my experience if it's relevant. Feel free to DM me asking why they are where they are.

 

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4 minutes ago, Moonzy said:

sounds like firmware issue if the fan spins just fine on startup but doesnt spin under load

 

is there significantly more resistance to the fan?

No it appears to spin normally initially and sounds the same.

 

It also doesn't spin properly on idle once the initial startup fan spin stops. It's just easier to reproduce this problem under load.

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17 minutes ago, xInfinity117 said:

No it appears to spin normally initially and sounds the same.

 

It also doesn't spin properly on idle once the initial startup fan spin stops. It's just easier to reproduce this problem under load.

tried it in other systems?

 

fresh windows install?

My PCs: Desky | Beddie | Miney | Benchie

Things I need help with: (nothing at the moment)

Spoiler

none atm

I hate Intel's pricing, Ryzen's weird quirks, Nvidia's pricing, and Radeon GPUs in general

Spoiler

Products I like:

Spoiler

Sony Xperia Z1 / Z2 / 10 ii, Asus Strix 970 / 1070, Samsung SSD, WD HDD, Corsair PSUs (AX, RM, CX(grey)), GeForce GPU, NZXT N450/S340, be quiet! Coolers, G.Skill Trident RAM, Logitech M525, Logitech G440, Razer Deathadder Elite

Products I hate:

Spoiler

Xperia Z3, XiaoMi 5c, Radeon GPUs, Razer Audio Products, any bloatwares

Companies I absolutely adore: (and hope it stays that way)

Spoiler

be quiet! - sent me AM4 mounting for my DRP3 even though it's way past the timeframe stated, no questions asked

Corsair - very good RMA experience, absolutely recommend

Companies I hate:

Spoiler

Nvidia, Intel, Apple, TMT (Thundermatch, a retailer)

Personal Blacklisted Companies:

Spoiler

Acer: shit tier quality products, shit tier customer service thus far, they "tried" to solve my issue but they arent really doing anything but delaying and delaying. (on-going case since July)

Gigabyte: horrible customer service (gigabyte had literally 0 customer service, asked me to go to retailer with NO WAY to email them about a question) but at least they fixed my shit in ONE MONTH (would probably take me 1 hour to fix if they let me email them)

XiaoMi Phones: built like a tank but the software is buggy as all hell

Seagate HDD: had too many dead seagate drives

Kingston SSD: 300V controller swap thingy

Razer (except their mouse)

Remember, just because I had good/bad experiences with these companies/product, doesn't mean you will have similar experiences too. I would still recommend these products if they made sense for your needs, but I'll add a disclaimer of my experience if it's relevant. Feel free to DM me asking why they are where they are.

 

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Exact same behaviour is seen when put in another system. I don't think this is software. 

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