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Rattle sound on 7800XT

jnos

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I bought the card in September. I use zero RPM when I am not playing. Fans rarely reach 2100RPM.
 
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I suspect it's like my Nitro+ RX 6750 XT, where one or more of the fans can rub on the shroud. Check the bracket, if using the bracket that Sapphire provides.
 

jnos

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I suspect it's like my Nitro+ RX 6750 XT, where one or more of the fans can rub on the shroud. Check the bracket, if using the bracket that Sapphire provides.
Nope, that's not it, however I had that problem too.

It is the fan. I tried stress test on Adrenalin and when it reaches around 1500 RPM, that sound returns. As if the fan was rubbing against something. So what should I do?
 

eidairaman1

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Nope, that's not it, however I had that problem too.

It is the fan. I tried stress test on Adrenalin and when it reaches around 1500 RPM, that sound returns. As if the fan was rubbing against something. So what should I do?
Replace the fan, or mod the shroud
 
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Likely loose fin for the heatsink. My 4090 had the same rattle and it was harmonic. I disassembled the cooler and strategically applied hot glue to the fins at the edges and just tapped my fingers all over it and applied glue wherever I noticed any rattle and then reassembled and it's been quiet as a mouse since.
 

jnos

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Likely loose fin for the heatsink. My 4090 had the same rattle and it was harmonic. I disassembled the cooler and strategically applied hot glue to the fins at the edges and just tapped my fingers all over it and applied glue wherever I noticed any rattle and then reassembled and it's been quiet as a mouse since.
Is a loose fin something that could damage the GPU? Is it something I need to take care of immediately? Seems like it's not that big of a deal.
 

eidairaman1

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Is a loose fin something that could damage the GPU? Is it something I need to take care of immediately? Seems like it's not that big of a deal.
No it will be an annoyance, do it on your dust removal in 3- 6 months
 
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Is a loose fin something that could damage the GPU? Is it something I need to take care of immediately? Seems like it's not that big of a deal.
Its not so big deal to take out the card and inspect it.
Put it on the table/desk and look with a flashlight through the fan. Spin it with your hand and compare it with the other 2 fans. Look for anything unusual...
This is simple. Its no science.

If I were you I would do that days ago out of curiosity.
 

eidairaman1

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eidairaman1

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I thought that the loose fin concerns heat sink, not fan blade? Sorry I don't understand.
Sorry fins, you take the fan shroud off and grab each heatsink fin, if any look crooked that could be a culprit
 

jnos

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Sorry fins, you take the fan shroud off and grab each heatsink fin, if any look crooked that could be a culprit
Thanks. Will try. And how to fix it? Should I fix it at all?

So my understanding is: when the fan reach certain RPM, the air moves quickly enough to move with the fin, which makes that rattle sound?
 
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eidairaman1

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Thanks. Will try. And how to fix it? Should I fix it at all?

So my understanding is: when the fan reach certain RPM, the air moves quickly enough to move with the fin, which makes that rattle sound?
Either that or as fans move they cause vibration. If the card is outside RMA, since you dont know, i suggest you have someone that does repairs solder the fin for you, if any are found...

Good luck
 
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