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Hot!Issues with 3090 FTW3 - I think I found the Rootcause

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LKrieger
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2020/11/23 06:51:17 (permalink)
Hi All,
 
I think I found the issue why some users here report that the Card stop working or Crashes or similar.
 
I did a furmark test with the fresh recieved card on stock settings. Therefore I saw in the Software absolut acceptable temperatures on all sensors (picture 1). Then I did a small measurement on the card with my flir (picture 2) and then I was shocked. On the Back side of the card the area nearby the memory Chips get 94° hot! On the same time the temperatures shown on the sensors of the software did not change. So there is a massive issue with the cooling of the backside of the card. The Backplate is not nearly enough.
You need to mention the Furmark test only runs about 3-4 minutes with an opened case.
 
So is this known to evga? The bad feeling for me is that you cant actually trust the software. Maybe some users overclock their cards more and more cause the software says everything is in good temperature ranges. But in real the memory cooks above and nobody knows...
 
Until yet I did not reciev a crash, but I think its clearly if people pushes OC, then this could clearly happen.
 
pic1

pic2

LK
post edited by LKrieger - 2020/11/23 10:00:05


The big system: www.sysprofile.de/id31233
#1

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    Mathieas
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    Re: Issues with 3090 FTW3 - I think I found the Rootcause 2020/11/23 07:01:22 (permalink)
    That is very interesting! You maybe on to something. Do you happen to have FLIR images of your previous card?

    A a control to show everything is working as expected might be useful too just as a sanity check on the camera. Maybe boiling water showing around 100C? I have never used a FLIR camera so I may be off base with that one :P.

    Great work none the less!!
    post edited by Mathieas - 2020/11/23 07:05:24

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    #2
    LKrieger
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    Re: Issues with 3090 FTW3 - I think I found the Rootcause 2020/11/23 07:09:15 (permalink)
    Yeah sure, my Flir works great. For those high temperatures the flir only deviates for around 1-2 °.
    The only greater deviation is on reflective metal surfaces like the deep blue/black shown metal bracket. Flirs do have a problem with reflective surfaces. But the PCB on the Back and the memory chips are no problem and only have a small deviation like mentioned above^^.
     
    Until yet I measured all of the hardware which I built for my friends and customers...


    The big system: www.sysprofile.de/id31233
    #3
    Zetta
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    Re: Issues with 3090 FTW3 - I think I found the Rootcause 2020/11/23 07:17:19 (permalink)
     
    Nice. This is very interesting. I'd like to know if this is at all normal. My cards have typically failed when running in non-demanding games with small OC and a power target of 107.
     
    I doubt EVGA will comment on this though.
     
    #4
    SeanDude05
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    Re: Issues with 3090 FTW3 - I think I found the Rootcause 2020/11/23 07:20:50 (permalink)
    I wonder if some adhesive heat sinks would help. Or the water cooling backplate product as a step up from that.


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    #5
    LKrieger
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    Re: Issues with 3090 FTW3 - I think I found the Rootcause 2020/11/23 07:55:19 (permalink)
    Actually I cant take further tests actually. My friend couldnt wait to get into gaming and therefore the whole system is now away and in use...
    Adding more pads will surely help to distribute the heat more evenly on the Backplate. I mean you can see the Backplate around the cutout on the backside of the gpu chip is colored red - so around 80°+ i would guess. The more you are away from the cutout the colder it gets - but as you can see the color black and therefore I would guess around 65°+
    To me it looks like the Backplate isnt enough. The whole Backplate was also extremly hot and couldnt be touched anymore.
    But lets see what EVGA does have for informations about that.


    The big system: www.sysprofile.de/id31233
    #6
    loveordie
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    Re: Issues with 3090 FTW3 - I think I found the Rootcause 2020/11/23 08:29:19 (permalink)
    I currently have a 3500RPM fan pointed at the back of my card until my waterblock arrives.

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    #7
    Bradypan
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    Re: Issues with 3090 FTW3 - I think I found the Rootcause 2020/11/23 09:47:10 (permalink)
    https://www.youtube.com/watch?v=ayGS51-xl5g
    GamersNexus did a review where they have thermocouples directly contacting the top and bottom GDDR6X memory modules and it's around 70C.  If you're seeing something different, you may want to contact EVGA. Also, edit your image in your original post, it has your latitude/longitude coordinates.
    #8
    ty_ger07
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    Re: Issues with 3090 FTW3 - I think I found the Rootcause 2020/11/23 09:59:23 (permalink)
    Bradypan
    Also, edit your image in your original post, it has your latitude/longitude coordinates.

    It does!!?!  I didn't notice.  Now I will have to type them in and figure out where he lives.
    [sarcasm]
     
    I noticed the coordinates hours ago.
    If you are genuinely worried about it, stating it publicly doesn't help him in any way.  It just increases the realization of the coordinates existence.
    #9
    Jarmel
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    Re: Issues with 3090 FTW3 - I think I found the Rootcause 2020/11/23 10:00:06 (permalink)
    I remember there originally was concern about the memory chips getting hot but GN did check that so I don't know. Software probably is inaccurate though.
    #10
    cneuhauser
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    Re: Issues with 3090 FTW3 - I think I found the Rootcause 2020/11/23 10:23:59 (permalink)
    Trust me... if you figured this out within a few hours of opening the package... both NVIDIA & EVGA are well aware of it.
     


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    transdogmifier
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    Re: Issues with 3090 FTW3 - I think I found the Rootcause 2020/11/23 10:34:15 (permalink)
    Yeah, it couldn't possibly be anything but what you think it is....
     

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    TheHyperMatrix
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    Re: Issues with 3090 FTW3 - I think I found the Rootcause 2020/11/23 19:22:15 (permalink)
    Zetta
     
    Nice. This is very interesting. I'd like to know if this is at all normal. My cards have typically failed when running in non-demanding games with small OC and a power target of 107.
     
    I doubt EVGA will comment on this though.
     




    It's not just an EVGA issue.  Unfortunately it's an issue with all AIB 3090 cards.  I remember having a similar overheating issue with VRAM on the Pascal Titan X where it would get too hot to touch.  Back then I fixed the problem by using an active cooled backplate from AquaComputer and that brought the temperatures down from 80-90C into the 50s.  A lot of people over on OCN are basically sticking a thermal pad on the backplate, and putting a heatsink on top of that.  It really helps.  Especially if you have airflow in your case.

    Need to spamtribute 100 posts for Elite status to be able to get a KingPin because Jacob. My apologies in advance.
    #13
    AWK16
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    Re: Issues with 3090 FTW3 - I think I found the Rootcause 2020/11/23 20:14:15 (permalink)
    Hardware engineers that have build the card from ground up and you think that's the cause of literally dying cards, you have to look elsewhere, although at first hand sounds pretty convincing
    post edited by AWK16 - 2020/11/23 20:16:56

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    LKrieger
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    Re: Issues with 3090 FTW3 - I think I found the Rootcause 2020/11/24 06:23:29 (permalink)
    AWK16
    Hardware engineers that have build the card from ground up and you think that's the cause of literally dying cards, you have to look elsewhere, although at first hand sounds pretty convincing



    Example:
    Hardware engineers had built the first revisions of X299 Mainboards and selled them all around the world - all brands together had the Temperature issues with their vrms regarding crashes...
    Der8auer - a simple youtuber - not an hardware engineer found this issue and addressed that to the developers... After that all Mainboard brands made a new revision with better cooling.
     
    I think I had no more to say here, exept iam not der8auer.


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    #15
    the_Scarlet_one
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    Re: Issues with 3090 FTW3 - I think I found the Rootcause 2020/11/24 06:29:50 (permalink)
    Der8auer is hardly a simple youtuber. Saying he is a simple YouTuber would mean you don’t know his background.

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    AWK16
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    Re: Issues with 3090 FTW3 - I think I found the Rootcause 2020/11/24 06:43:02 (permalink)


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    #17
    wwxww
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    Re: Issues with 3090 FTW3 - I think I found the Rootcause 2020/11/24 06:46:30 (permalink)




    "Der8auer - a simple youtuber - not an hardware engineer found this issue and addressed that to the developers... After that all Mainboard brands made a new revision with better cooling.
     
    I think I had no more to say here, exept iam not der8auer."





     
    Ha!
    #18
    TheHyperMatrix
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    Re: Issues with 3090 FTW3 - I think I found the Rootcause 2020/11/24 06:53:34 (permalink)
    AWK16
    Hardware engineers that have build the card from ground up and you think that's the cause of literally dying cards, you have to look elsewhere, although at first hand sounds pretty convincing



    Hardware engineers make mistakes.  Hardware engineers' suggestions are also sometimes ignored by management to lower costs. 

    Need to spamtribute 100 posts for Elite status to be able to get a KingPin because Jacob. My apologies in advance.
    #19
    jaketeck
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    Re: Issues with 3090 FTW3 - I think I found the Rootcause 2020/11/24 10:11:11 (permalink)
    Summer bummer. It would be interesting to see if the issue were solved, once again, by thermal pads. I'm hoping this isn't the same issue with the previous gen ICX (was it first gen?) that we saw on the 1070/1080 that required a thermal pad mod.
    #20
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