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FaxedForward

Igor’s Lab tests find 3080 FE GDDR6X memory hitting temps above 100*C

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Posted · Original PosterOP

Looks like the GDDR6X memory in the 3080 is REALLY getting pushed to the limit. IIRC in previous generations 95*C was generally considered the highest “safe” temp for regular operation.

 

Igor notes that he intends to continue testing Ampere cards so I look forward to seeing if these high temperatures are consistent or if the FE is unusual in this regard. Right now it is too early to say.

 

https://www.igorslab.de/en/gddr6x-am-limit-ueber-100-grad-bei-der-geforce-rtx-3080-fe-im-chip-gemessen-2/

image.jpeg.4eb8a4d189122cb4a148e94eb7bb8206.jpeg

 

image.jpeg.c585983e133cd250df11e5fd81007ea6.jpeg


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GA102: 

05onfire1_xp-superJumbo-v2.jpg

 


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Well that's quite hot.

At least 99.9% of the people out there won't be affected since we can't get the FE model

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Posted · Original PosterOP
Just now, Exeon said:

Well that's quite hot.

At least 99.9% of the people out there won't be affected since we can't get the FE model

Just because the FE cards are getting this hot doesn’t mean the AIB cards aren’t. Igor seems to suspect that this will be a common trait of GDDR6X cards.


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first batch of cards having problems? how unexpected :P 

 

wonder if there are some easy modifications to alleviate this. although if it runs fine at those temps without fear of degradation then i guess its okay...


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Just now, FaxedForward said:

Just because the FE cards are getting this hot doesn’t mean the AIB cards aren’t. Igor seems to suspect that this will be a common trait of GDDR6X cards.

Interesting. People are chickening already when they see the CPU reaches 70C "Oh, my CPU will die prematurely." And now we see this.

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1 minute ago, FaxedForward said:

Just because the FE cards are getting this hot doesn’t mean the AIB cards aren’t. Igor seems to suspect that this will be a common trait of GDDR6X cards.

I believe I saw a breakdown of several AIB's showing entirely different configurations when it comes down to what part of the GPU gets cooled.

I think it's normal for faster memory to run hotter and for newer cooling methods to aleviate those.

 

We would have to see tests on the AIB's for confirmation

 

 

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Posted · Original PosterOP
7 minutes ago, VeganJoy said:

first batch of cards having problems? how unexpected :P 

 

wonder if there are some easy modifications to alleviate this. although if it runs fine at those temps without fear of degradation then i guess its okay...

There are no published values from Micron, Nvidia, or the AIBs as far as safe maximum temps for GDDR6X.

 

However, Igor suspects it is in the neighborhood of 120*C (!!!) before chip degradation.

Quote

In response to questions among colleagues, for example from the R&D departments, it was unanimously agreed that the maximum temperature Ttot before the start of a possible destruction of the chip should be 120 °C and that Tjunction should probably be set at 105 °C or for the GDDR6X even at 110 °C is specified as the maximum value.


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23 minutes ago, FaxedForward said:

There are no published values from Micron, Nvidia, or the AIBs as far as safe maximum temps for GDDR6X.

 

However, Igor suspects it is in the neighborhood of 120*C (!!!) before chip degradation.

Thats what i was trying to find, ill keep a look out for that though.


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Posted · Original PosterOP

Igor has done some follow up testing and managed to lower module temperature by 8 degrees with some...interesting thermal pad placement 😏

 

https://www.igorslab.de/en/simple-pad-mod-for-the-force-rtx-3080-founders-edition-slowers-the-gddr6x-temperature-by-a-whopping-8-degrees/


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