Aluminum Heatsink on the back of RTX 3090

[TIG]

I found several videos on Youtube showing that Aluminum heatsink might improve about 5 deg the VRAM temperature. Any thoughts ....?!!!

[Jamebonds1]

Publicado originalmente por Monk:

Publicado originalmente por Jamebonds1:

Beware of C°/W (thermal resistance). If it is too high, then it will overheat the GPU. If it is too low, then it will make some IC working slower. I have seen them before, they are from Digikey.com.

Bottom line, if you do add these aluminium heatsink, I would recommend to compare with GPU stress program before and after added an aluminium heatsink.

Sorry, that makes no sense, adding cooling to the vram on the back of the card cannot overwork or overheat the gpu due, it's only beneficial.

Unless your overclocking and mining so full load for example, there's no need to worry about the temps.

The one you want to look for is gpu memory junction temperature on hwinfo64, as long as its sub 110c you are fine, at that point it can begin to throttle, but if you don't want to mess attaching heatsinks etc, you could just point a spare 120mm fan at the back plate and drop 5-15c depending how fast it is.

I know some aluminium heatsink is bad for the GPU, so that is something that should be careful pick them, and compare before and after.

[Autumn_]

Publicado originalmente por Jamebonds1:

Publicado originalmente por Monk:

Sorry, that makes no sense, adding cooling to the vram on the back of the card cannot overwork or overheat the gpu due, it's only beneficial.

Unless your overclocking and mining so full load for example, there's no need to worry about the temps.

The one you want to look for is gpu memory junction temperature on hwinfo64, as long as its sub 110c you are fine, at that point it can begin to throttle, but if you don't want to mess attaching heatsinks etc, you could just point a spare 120mm fan at the back plate and drop 5-15c depending how fast it is.

I know some aluminium heatsink is bad for the GPU, so that is something that should be careful pick them, and compare before and after.

How could dissipating heat from heatsinks on the back plate harm performance, or the GPU?

Could you provide some proof to this crazy claim?

[KalGimpa]

yeah, never heard of that either. just looked in case i was that misinformed and could not find anything saying it is bad to use an aluminum heatsink on a gpu

[Jamebonds1]

Publicado originalmente por Autumn_:

Publicado originalmente por Jamebonds1:

I know some aluminium heatsink is bad for the GPU, so that is something that should be careful pick them, and compare before and after.

How could dissipating heat from heatsinks on the back plate harm performance, or the GPU?

Could you provide some proof to this crazy claim?

I think we have been clear in the past. I don't have to provide anything to you. Good bye.

Publicado originalmente por kalcuey-freehk:

yeah, never heard of that either. just looked in case i was that misinformed and could not find anything saying it is bad to use an aluminum heatsink on a gpu

I never said use an aluminum heatsink on the GPU is bad, I said should be careful to pick right aluminum heatsink for the GPU. Wrong aluminum heatsink can harm the GPU.

[KalGimpa]

Publicado originalmente por Jamebonds1:

Publicado originalmente por Autumn_:

How could dissipating heat from heatsinks on the back plate harm performance, or the GPU?

Could you provide some proof to this crazy claim?

I think we have been clear in the past. I don't have to provide anything to you. Good bye.

Publicado originalmente por kalcuey-freehk:

yeah, never heard of that either. just looked in case i was that misinformed and could not find anything saying it is bad to use an aluminum heatsink on a gpu

I never said use an aluminum heatsink on the GPU is bad, I said should be careful to pick right aluminum heatsink for the GPU. Wrong aluminum heatsink can harm the GPU.

you are splitting hairs. i could not find anything about any aluminum heatsink being bad for a gpu.

if you have information to the contrary, why hold it back?

[Autumn_]

Publicado originalmente por Jamebonds1:

Publicado originalmente por Autumn_:

How could dissipating heat from heatsinks on the back plate harm performance, or the GPU?

Could you provide some proof to this crazy claim?

I think we have been clear in the past. I don't have to provide anything to you. Good bye.

Publicado originalmente por kalcuey-freehk:

yeah, never heard of that either. just looked in case i was that misinformed and could not find anything saying it is bad to use an aluminum heatsink on a gpu

I never said use an aluminum heatsink on the GPU is bad, I said should be careful to pick right aluminum heatsink for the GPU. Wrong aluminum heatsink can harm the GPU.

Another one of your 'I'm making things up and cant back it up' posts I see.

Publicado originalmente por kalcuey-freehk:

Publicado originalmente por Jamebonds1:

I think we have been clear in the past. I don't have to provide anything to you. Good bye.

I never said use an aluminum heatsink on the GPU is bad, I said should be careful to pick right aluminum heatsink for the GPU. Wrong aluminum heatsink can harm the GPU.

you are splitting hairs. i could not find anything about any aluminum heatsink being bad for a gpu.

if you have information to the contrary, why hold it back?

That's because it's not true, the only way I see a heatsink causing harm for anything is a few things;
Directly on NAND of an SSD, which will increase the speed it wear out at. Because cold NAND wears harder. Not enough to really matter in a practical sense though.
If you short 2 things by allowing the aluminum to touch solder joints.
Or, lastly, use thermal glue and just rip it off.

Aluminum heatsinks can't cause damage by cooling down to much, they don't have enough thermal transfer ability. It would have to be a huge brick of fins, even then it would struggle to cool still. And you won't go below ambient temps, which inside of a case are much hotter, so there really isn't any way to damage anything from a couple of cm x cm heatsinks.

Also, should mention, if hardware can "get damaged" from a little heatsink, why don't cards that are exposed to LN2 or M3 Novec get issues with 'damaged ICs', or anything like that?
It's so crazy and can be disproven with just a little thought.

[Jamebonds1]

Publicado originalmente por kalcuey-freehk:

Publicado originalmente por Jamebonds1:

I think we have been clear in the past. I don't have to provide anything to you. Good bye.



I never said use an aluminum heatsink on the GPU is bad, I said should be careful to pick right aluminum heatsink for the GPU. Wrong aluminum heatsink can harm the GPU.

you are splitting hairs. i could not find anything about any aluminum heatsink being bad for a gpu.

if you have information to the contrary, why hold it back?

Even I have seen many issue in workplace that use the wrong heatsink on the computer and the performance is down. That is why find the correct aluminum heatsink is important.

https://www.quora.com/Which-is-better-higher-thermal-resistance-or-lower-thermal-resistance-in-heat-transfer-technolongy

https://www.thegreenage.co.uk/article/thermal-conductivity-r-values-and-u-values-simplified/#:~:text=The%20R-value%20is%20a,the%20better%20its%20insulating%20properties.

https://www.ppi-uk.com/news/what-makes-a-good-heat-sink/#:~:text=The%20heat%20sink%20provides%20the,is%20generated%20by%20the%20source.

https://www.digikey.com/Site/Global/Layouts/DownloadPdf.ashx?pdfUrl=F51974C9A6D544F1A7D8F119514B67FF

https://www.coolingzone.com/library.php?read=485

Example: The heatsink from the digikey below is not good for the GPU due to higher C°/W. That will make GPU much hotter than normal. That is also why I suggested the OP to check the performance before and after.

https://www.digikey.com/en/products/detail/assmann-wsw-components/V5618A/3511413

PS: Did you seen the OP agreed to my suggest for performance check before and after?

Publicado originalmente por Autumn_:

Publicado originalmente por Jamebonds1:

I think we have been clear in the past. I don't have to provide anything to you. Good bye.



I never said use an aluminum heatsink on the GPU is bad, I said should be careful to pick right aluminum heatsink for the GPU. Wrong aluminum heatsink can harm the GPU.

Another one of your 'I'm making things up and cant back it up' posts I see.

Not true, I just refuse to work with you anymore. Good bye.

[KalGimpa]

Publicado originalmente por Jamebonds1:

Publicado originalmente por kalcuey-freehk:

you are splitting hairs. i could not find anything about any aluminum heatsink being bad for a gpu.

if you have information to the contrary, why hold it back?

Even I have seen many issue in workplace that use wrong heatsink on the computer and the performance is down. That is why correct aluminum heatsink is important.

https://www.quora.com/Which-is-better-higher-thermal-resistance-or-lower-thermal-resistance-in-heat-transfer-technolongy

https://www.thegreenage.co.uk/article/thermal-conductivity-r-values-and-u-values-simplified/#:~:text=The%20R-value%20is%20a,the%20better%20its%20insulating%20properties.

https://www.ppi-uk.com/news/what-makes-a-good-heat-sink/#:~:text=The%20heat%20sink%20provides%20the,is%20generated%20by%20the%20source.

https://www.digikey.com/Site/Global/Layouts/DownloadPdf.ashx?pdfUrl=F51974C9A6D544F1A7D8F119514B67FF

https://www.coolingzone.com/library.php?read=485

Example: This is not good for the GPU due to higher C°/W. That will make GPU much hotter than normal. That is also why I suggested the OP to check the performance before and after.

https://www.digikey.com/en/products/detail/assmann-wsw-components/V5618A/3511413

Publicado originalmente por Autumn_:

Another one of your 'I'm making things up and cant back it up' posts I see.

Not true, I just refuse to work with you anymore. Good bye.

gotcha. that is simply a comparison of heatsink material. which is better than which. aluminum, in itself, will not hurt the gpu. if a gpu is running that hot, though, there are other problems.

the way you worded your post made it seem like there was a some kind of detrimental effect from aluminum itself

[Jamebonds1]

Publicado originalmente por kalcuey-freehk:

Publicado originalmente por Jamebonds1:

Even I have seen many issue in workplace that use wrong heatsink on the computer and the performance is down. That is why correct aluminum heatsink is important.

https://www.quora.com/Which-is-better-higher-thermal-resistance-or-lower-thermal-resistance-in-heat-transfer-technolongy

https://www.thegreenage.co.uk/article/thermal-conductivity-r-values-and-u-values-simplified/#:~:text=The%20R-value%20is%20a,the%20better%20its%20insulating%20properties.

https://www.ppi-uk.com/news/what-makes-a-good-heat-sink/#:~:text=The%20heat%20sink%20provides%20the,is%20generated%20by%20the%20source.

https://www.digikey.com/Site/Global/Layouts/DownloadPdf.ashx?pdfUrl=F51974C9A6D544F1A7D8F119514B67FF

https://www.coolingzone.com/library.php?read=485

Example: This is not good for the GPU due to higher C°/W. That will make GPU much hotter than normal. That is also why I suggested the OP to check the performance before and after.

https://www.digikey.com/en/products/detail/assmann-wsw-components/V5618A/3511413



Not true, I just refuse to work with you anymore. Good bye.

gotcha. that is simply a comparison of heatsink material. which is better than which. aluminum, in itself, will not hurt the gpu. if a gpu is running that hot, though, there are other problems.

the way you worded your post made it seem like there was a some kind of detrimental effect from aluminum itself

Even if I use the, an, a, is, are, they, these, and other word in correct way. I still can't wording correct way. English is my second language, so I never learn it until 5th grade. American Sign Language is my first language.

[KalGimpa]

Publicado originalmente por Jamebonds1:

Publicado originalmente por kalcuey-freehk:

gotcha. that is simply a comparison of heatsink material. which is better than which. aluminum, in itself, will not hurt the gpu. if a gpu is running that hot, though, there are other problems.

the way you worded your post made it seem like there was a some kind of detrimental effect from aluminum itself

Even if I use the, an, a, is, are, they, these, and other word in correct way. I still can't wording correct way. English is my second language, so I never learn it until 5th grade. American Sign Language is my first language.

cool beans. now i get what you meant

[Monk]

Going to be honest, I still don't follow your point and none of those links are remotely relevant to adding a heatsink onto a backplate or even directly onto the memory chips.

Obviously you can't go and remove the gpu's heatsink and try and replace it with a couple of cheap aluminium heatsink, but, to add cooling specifically to the memory on the back of a 3090 (the only model with the memory on the back so not directly cooled by the heatsink), be it direct, or to the back plate, cannot cause issues.

But, as I said before, unless you have it overclocked and are mining the temperatures it reaches are perfectly fine, even if you are, a simple fan blowing a bit of air over the back plate will be just as effective until you water cool the gpu and add active cooling to the rear memory.

[Jamebonds1]

Publicado originalmente por Monk:

Going to be honest, I still don't follow your point and none of those links are remotely relevant to adding a heatsink onto a backplate or even directly onto the memory chips.

Obviously you can't go and remove the gpu's heatsink and try and replace it with a couple of cheap aluminium heatsink, but, to add cooling specifically to the memory on the back of a 3090 (the only model with the memory on the back so not directly cooled by the heatsink), be it direct, or to the back plate, cannot cause issues.

But, as I said before, unless you have it overclocked and are mining the temperatures it reaches are perfectly fine, even if you are, a simple fan blowing a bit of air over the back plate will be just as effective until you water cool the gpu and add active cooling to the rear memory.

Heatsink has a thermal resistance, so I believe I have made my point and it is still relevant to adding a heatsink onto a backplate. Add more heatsink then it added more thermal resistance, and so forth.

This is the heatsink should be avoid and should not be used on the GPU due to higher C°/W. That will overheat the GPU.

https://www.digikey.com/en/products/detail/assmann-wsw-components/V5618A/3511413

[Monk]

No.

Sticking a heatsink onto a 3090 backplate as long as it is fitted properly, that is, with thermal compound abd not an insulator CANNOT cause it to increase in temperature.

If you were to try using crap cheap heatsink in place of the main cooler, that is a different issue entirely but not what is being discussed, as the 3090 has half its memory on the back of the card with only the (usually aluminium) back plate to act as a heat spreader.

This usnt relevant for any model that doesn't have memory on the back of the card, which, for consumer models, I believe is only the 3090 as of now.

[Jamebonds1]

Publicado originalmente por Monk:

No.

Sticking a heatsink onto a 3090 backplate as long as it is fitted properly, that is, with thermal compound abd not an insulator CANNOT cause it to increase in temperature.

If you were to try using crap cheap heatsink in place of the main cooler, that is a different issue entirely but not what is being discussed, as the 3090 has half its memory on the back of the card with only the (usually aluminium) back plate to act as a heat spreader.

This usnt relevant for any model that doesn't have memory on the back of the card, which, for consumer models, I believe is only the 3090 as of now.

As long as the heatsink is used to keep the component cooled, that is fine. But if heatsink is used to keep the component heat, that is not fine.

Heatsink mean to keep stuff on either cooled or heated,

That is why should pick low C°/W (thermal resistance) heatsink. So, it is actually relevant for any model that doesn't have memory on the back of the card. I did blow up my transistor for use too high C°/W heatsink that overheated it.

So, it is true, this heatsink from digikey can actual overheat the component if it was not made for that. It is because that is 80 C°/W.

https://www.digikey.com/en/products/detail/assmann-wsw-components/V5618A/3511413

[TIG]

Thanks all for this discussion. I learned alot from you. Yes Monk, only RTX 3090 has About 12 VRAMs of 24 located on the gpu back. That is why the aluminum heatsink suggestion came into picture.