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Petition asking ASUS a clear answer on Recent G.cards VRM temps.

Discussion in 'Graphics Cards' started by oded1st, May 20, 2014.

  1. oded1st New Member

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    hi, i want o make a petition and ask asus to let us know what going on with the vrm temps on latest high end cards like 780ti and 290X.
    i would like your opinion on this and to suggest if crorrections are needed.
    if you have better words to write in the pettion then dont hold back, type it down.
    thank you.
    this is what i tought of:
    with all of the users names that will sign on this.
    p.s.
    i will post it in the GPU + HW forums to collect enough signs.
    thank you.
     
  2. RCoon

    RCoon Gaming Moderator Staff Member

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    Ever thought of just emailing them? I emailed Gigabyte direct about any questions or queries and they usually answered pretty promptly and honestly.
    Hell, you can even call up NVidia and they give you some pretty blatant details on what you're asking about their product. You'd be surprised.
     
  3. pyyy

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    I want to know too.

    I dont know how this card got 9.5 review score here. In my opnion it has some serious flaws. VRM would over heat. And after Catalyst 14.4 it would start throttling. There is no heat sink on the memories. And the cooling is not good comparing to other 290x.
     
  4. Tatty_One

    Tatty_One Senior Moderator Staff Member

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    Maybe I can help, if you look at the review it was pre catalyst 14.4 and therefore possibly the throttling you refer to did not occur, also the review clearly states there is (albeit small) a VRM heatsink, and lastly the temps comparision with both the AMD reference card and a couple of others does not suggest it's cooling performance is particularily inferior.

    In perspective and just a personal opinion from what I have seen and read elsewhere, the valid points the OP raises here would be equally addressed to AMD as from what I can see the Asus cards in general don't appear to be any worse than many of it's competitiors, i say this in relation to our particular review and not all reference designs of course.
     
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  5. theoneandonlymrk

    theoneandonlymrk

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    Plus the vrm's are rated to run long term at those temps anyway, sinking heat is part of what they do, my 5870 got that hot easily before I waterblocked it and them vrm's are rated to work upto 150º afaik
     
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  6. oded1st New Member

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    My dear friend, i did as do other users.
    somtimes asus said to rma the card and somtimes to use the fan & temp teakk.
    these are very good news.
    though i wish we were friends so i could trust your expiriance.
    again... good news... but i rather have ASUS commenting on that.
     
  7. Tatty_One

    Tatty_One Senior Moderator Staff Member

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    You may have your answer here then......

    http://www.kitguru.net/components/g...-direct-cu-ii-oc-review-1600p-ultra-hd-4k/28/
    Scroll down to the bottom of the page.
     
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  8. pyyy

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    I mean there is no heat sink over the RAMs, not VRM. There is a heat sink on the RAM of most other 290x cards, like this one.[​IMG]
    Even if throttling did not occur, VRM 1 temperature would go upto 120 celsius when running furmark. 120 is over the rated running temperature thats why in 14.4 AMD starts throttling the card when VRM 1 goes to 112.
     
  9. Tatty_One

    Tatty_One Senior Moderator Staff Member

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    The article I posted above suggests that the temperature readings are wrong.
     
  10. pyyy

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    I am considering water cooling this card just because the cooler is bad.
    But I have never done liquid cooling and it seems a lot of work to install everything.
     
  11. erocker

    erocker Super Moderator Staff Member

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  12. oded1st New Member

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    tahnk you.
    [​IMG]
    so, what i understand that the sensor should have been placed on the RED AREA of the pic i posted?
    are those things in the purple are called "mofset"? _ and i understand that these can be warm?
    also, is it true that inductors are rated to stand up to 200c?
    thank you.
     
  13. RCoon

    RCoon Gaming Moderator Staff Member

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    Yep. Inductors are usually just coiled copper wire surrounded by concrete in laymen's terms. They don't especially need much cooling at all. You'll notice most motherboards have them, and half the time aren't particularly covered by any heatsink. VRM's are the ones that actually need passive cooling, and passive cooling is usually all they need. They're rated at such a high operating temperature.
     
  14. Jack1n

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    The best option is to return the asus card and grab a different card,nothing will make them reconsider their designs more than lower sales.
     
  15. buildzoid

    buildzoid

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    Coils: 125C° (power output efficiency and inductance drop as temp grows)
    MOSFETs: 125C° (power output and efficiency drop as temp grows)
    Caps: 105C° (capacity drops)
    So the VRMs are safe upt o 100C° on the mosfets and 90C° on caps
     
  16. oded1st New Member

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    even if asus is using some high quality componant?
    asus say they use molded Caps (sap cap i think?), they say these caps are ultra durable to heat and moist 3 times more then regular gpu caps.
    they say..
     
  17. buildzoid

    buildzoid

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    12 000 hours at 105C° is the highest rating that I know of for capacitors. ASUS uses 10 000 hours at 105C° which is a year and a bit of guaranteed operation past that most will go boom. ALL inductors get lower efficiency and max current through put as they are heated up because the electrical resistance of the copper wire used increases exponentially as it gets heated up. The only way to counter this is to get some seriously overkill inductors that push 85A at 25C° because at 150C° they will probably only do 65A. MOSFETs are made of silicon and we all know how much CPUs like high temperatures.
     
    Last edited: May 23, 2014
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  18. Kyuuba

    Kyuuba

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    Yeah dude, that's insane I ran the GPU-z Render test and guess what, the VRM temp went to 99 º and the GPU being only 73 º, this wouldn't happen if the Bios had a better fan speed at 80 º at least which is the main cause why everytime mine hits max 83 º and no more specially while playing BF4, hitting that temp then the GPU throttles and again hit the exact temperature over and over again, it was the last Asus card I bought if there's no solution at least with the fan speeds, to add a worse scenario, they won't release a Bios with fans speeds fixed, I personally don't care about the noise, i mostly play with headphones so why bother... i like the noise thou because I think the fans are very well used at that time.
     
    Last edited: May 23, 2014
  19. oded1st New Member

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    thank you for your replay.
    this is on the spot!
    im having the exact same thing.
    only solution is this:
    [​IMG]
     
  20. oded1st New Member

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  21. Tatty_One

    Tatty_One Senior Moderator Staff Member

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    Thing is she mentioned the sensors irregularity and asked if it was the case could she have something official from Asus, the link I posted earlier clearly states that the review team at Kitguru had spoken to the Asus engineering team and they had confirmed the sensor issue, my point in linking that in the first place was to suggest that you do not have a VRM temp issue at all, you just think you have because of the sensor issue.
     
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  22. de.das.dude

    de.das.dude Pro Indian Modder

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    i think the problem here is it the information is getting lost in translation.
     
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  23. Kyuuba

    Kyuuba

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  24. oded1st New Member

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    yea, now i saw it BUT it is about the R9 290X and not the 780TI DC2OC?

    i also think this needs to be mentioned:
    iv tried all sort of FAN combination to cool the VRM (last method was the Scythe 4250RPM fan),
    it seems that nothing can reduce those "VRM" temps.
    the only method that did worked (if to actualy call it a method), was to keep the CORE temp beneath 75c. _ VRM temps almost always 20c (give or take 2c-5c) above Core.
    the episode of vrm dont want ot get cool, made me wonder that maybe it is a misplace sensor.
    maybe they placed it on the mofset(?)

    so tell me if im right in the image below:

    [​IMG]
     
    Last edited: May 25, 2014
  25. erocker

    erocker Super Moderator Staff Member

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    The sensor doesn't need to be covered by a heatsink. The sensor doesnt work correctly and is giving you faulty information on the temps. Really there's no real issue here.
     
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