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Hot!GTX 1080 FTW ACX: thermal pad mod even at low temps recommended?

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pegnose
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2017/04/20 23:02:14 (permalink)
Hi,
 
for some reason I only recently read about the offer regarding the updated thermal pads for the ACX 3.0 design. I have 2x 1080 FTW in SLI with the top card hybrid cooled (upgraded myself). Under the heaviest gaming-like load (Fire Strike Ultra stress test; not Furmark) I get like 71°C for the bottom (air) card and 68°C for the top (hybrid) one - where I have reduced fan speed a little due to noise.
 
I'd like to ask whether EVGA officials would recommend the thicker thermal pads in this case as my cards just don't get that hot (not like the 85°C I found in the article informing me about the pad mod), as I already have set a custom fan curve that maxes out at 57°C (for the sake of higher boost values).
 
Thanks!
 
 
PS: Oh, OCed, of course, to +70 / +400.
#1

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    Sajin
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    Re: GTX 1080 FTW ACX: thermal pad mod even at low temps recommended? 2017/04/20 23:08:47 (permalink)
    You don't need the pads... http://www.gamersnexus.net/guides/2691-final-evga-vrm-thermal-torture-test-and-analysis
     
    Your hybrid is running a bit warm @ 68c. It should be doing 50C at load.


    #2
    pegnose
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    Re: GTX 1080 FTW ACX: thermal pad mod even at low temps recommended? 2017/04/20 23:14:50 (permalink)
    Sajin, thanks again for your quick reply, and the link! Great to hear that my cards are fine.
     
    I had a temp problem before due to the 1-slot spacing between my cards and - obviously - an airflow issue with my case. The top card is sandwiched between the bottom one and the huge Noctua NH-D15. That's why I upgraded to the hybrid design. Before it would hit the 90°C mark under stress testing. Would you still say it is too hot? I mounted the radiator horizontally to the roof of my case.
    #3
    Sajin
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    Re: GTX 1080 FTW ACX: thermal pad mod even at low temps recommended? 2017/04/20 23:25:00 (permalink)
    How hot does the hybrid run with your case door removed? If the hybrid runs anywhere in the 60's with the case door off their is a problem.


    #4
    pegnose
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    Re: GTX 1080 FTW ACX: thermal pad mod even at low temps recommended? 2017/04/21 00:20:39 (permalink)
    Thanks, I'll check that out over the weekend.
    #5
    Sajin
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    Re: GTX 1080 FTW ACX: thermal pad mod even at low temps recommended? 2017/04/21 01:57:11 (permalink)
    No problem. 


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    pegnose
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    Re: GTX 1080 FTW ACX: thermal pad mod even at low temps recommended? 2017/04/21 14:33:46 (permalink)
    Ok, so I did the following:
     
    - opened case
    - removed fan limiter
    - disabled SLI (2nd card still in, hb bridge connected)
    - set physics to auto
    - rebooted
    - removed GPU OC (power limit to 100%)
    - remove CPU OC
    - bios still set to 1
    - fan curve maxes out at 55°C
    - ran Fire Strike Ultra (4k) stress test
     
    The card alternated between 49 and 50 °C during the second half of the test, fan speed between 72 and 76%, GPU core frequency between 2000 and 198?, CPU temp < 60 °C. As I said: bottom card still present. Hybrid radiator mounted horizontally at the top of my case.
     
    So there is a problem?
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    Sajin
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    Re: GTX 1080 FTW ACX: thermal pad mod even at low temps recommended? 2017/04/21 14:41:54 (permalink)
    pegnose
    The card alternated between 49 and 50 °C during the second half of the test
     
    So there is a problem?


    Looks good now. 


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    pegnose
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    Re: GTX 1080 FTW ACX: thermal pad mod even at low temps recommended? 2017/04/21 14:57:22 (permalink)
    Thanks!
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    pegnose
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    Re: GTX 1080 FTW ACX: thermal pad mod even at low temps recommended? 2017/04/21 15:14:47 (permalink)
    +400 MHz on the Vram is still no problem without the new pads? I ask because the bios mod for the 11 GHz memory speed is not available for the ACX 3.0 cooler cards.
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    redleader00
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    Re: GTX 1080 FTW ACX: thermal pad mod even at low temps recommended? 2017/04/22 14:58:11 (permalink)
    pegnose
    +400 MHz on the Vram is still no problem without the new pads? I ask because the bios mod for the 11 GHz memory speed is not available for the ACX 3.0 cooler cards.


    They probably installed faster memory in the iCX cards and clocked them lower because they didn't have the thumbs up from nvidia to release 1080s with 11Gbps memory at the time.



     
    You can win lots of prizes by participating in EVGA's 18th Anniversary like and win event !!!
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    Category 5
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    Re: GTX 1080 FTW ACX: thermal pad mod even at low temps recommended? 2017/04/24 09:09:54 (permalink)
    pegnose
    +400 MHz on the Vram is still no problem without the new pads? I ask because the bios mod for the 11 GHz memory speed is not available for the ACX 3.0 cooler cards.


     BIOS Mod?  I thought pretty much all 1080s handled 11GHz RAM without anything but OC software.  Both my Founder's Edition cards certainly handled it without issue.
    #12
    pegnose
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    Re: GTX 1080 FTW ACX: thermal pad mod even at low temps recommended? 2017/07/17 03:37:40 (permalink)
    Yesterday, my card died. In fire. Talked already to EVGA support, they will give me the same crappy ACX3.0 again, with the same issues. I'll return to ASUS for the next one. Never had any issues there.
    #13
    Beny44
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    Re: GTX 1080 FTW ACX: thermal pad mod even at low temps recommended? 2017/07/17 11:54:49 (permalink)
    Even my cards died a few days ago.
     
     
     

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    baconinabun
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    Re: GTX 1080 FTW ACX: thermal pad mod even at low temps recommended? 2017/07/17 12:10:55 (permalink)
    pegnose
    +400 MHz on the Vram is still no problem without the new pads? I ask because the bios mod for the 11 GHz memory speed is not available for the ACX 3.0 cooler cards.




    it is possible to flash 1080 FTW aCX bios to 11 GHz memory speed(with a +200 OC to boot) using 1080 FTW iCX bios with no problems,
     
    i have tried the iCX bios on both my aCX cards with no problems(but that might be different on your card), one of my aCX cards is one of the ones that are known to have the "blowing up" effect but both are EK water blocked, 
     
     
     
    one caveat, you flash a card at your own risk if you use a bios that is not made for the card  also the aCX flashed to iCX changes the DeviceID which i don't think would do much for the warranty  both my cards are now flashed back to aCX bios and their original DeviceID 
     
    Guess that don't help with the topic, but i will draw the line when anyone calls the 1080 FTWs aCX crappy, as they are far from that
     
     
    post edited by baconinabun - 2017/07/17 20:52:33
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    pegnose
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    Re: GTX 1080 FTW ACX: thermal pad mod even at low temps recommended? 2017/07/19 05:11:00 (permalink)
    So here are pics of my burn victim:


     
    #16
    pegnose
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    Re: GTX 1080 FTW ACX: thermal pad mod even at low temps recommended? 2017/07/19 05:23:24 (permalink)
    And I also found out, why that happened. Here are images of the VRM cooling part of my original (!) EVGA (!) hybrid cooler:

     
    You can see clearly, that the lengthy thermal pad does not reach to the end of the cooler. It is substantially shorter than the one from the ACX3.0 cooler (right part of each image):

     
    And exactly at that spot of missing thermal pad there is a clear reddish-brown burn mark (also blue burn marks in the indention to the left and small solder balls at the end of the thermal pad):

     
    @EVGA: WTX?! My original EVGA hybrid cooler broke my EVGA graphics card? I _will_ want to have my hybrid cooler replaced! I won't put it back onto the replaced card that way (RMA ongoing). That is outrageous.
     
     
    EDIT: Sorry for sounding so annoyed. But this creates a LOT of work, which I have to do. un-mount the hybrid cooler, re-mount it to the replacement card. Documenting all this. While not using my PC properly.
     
     
    post edited by pegnose - 2017/07/19 23:22:32
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    pegnose
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    Re: GTX 1080 FTW ACX: thermal pad mod even at low temps recommended? 2017/07/20 01:57:21 (permalink)
    So no EVGA statement?
     
    UPDATE: Support told me they want to investigate the cooler (RMA).
    post edited by pegnose - 2017/07/20 02:05:35
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