GTX 680mx temps

Discussion in 'iMac' started by beosound3200, Jun 29, 2014.

  1. beosound3200 macrumors 6502a

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    Nov 23, 2010
    #1
    gtx 680mx in my imac reaches 93-94 celsius, is this acceptable? can i lower it down somehow? thank you
     
  2. MacsRgr8 macrumors 604

    MacsRgr8

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    Sep 8, 2002
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    #2
    Whoa, that seems very high.

    Is that running OS X or Windows (Boot Camp?), and running particular games?
     
  3. beosound3200 thread starter macrumors 6502a

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    Nov 23, 2010
    #3
    bootcamping windows with assassins creed 3 :p

    really? very high? that doesnt sound good
     
  4. h9826790 macrumors 604

    h9826790

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    Apr 3, 2014
    Location:
    Hong Kong
    #4
    That sounds quite high to me. You may use GPU-Z to check if there is any thermal throttling. If no, that means your card still perform.

    Even though it's a mobile card, better to keep it below 90c.

    Anyway, did you OC your card? Usually the card won't run at that temperature without OC.
     
  5. insane79 macrumors 6502

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    Aug 20, 2008
    #5
    thats the 27" late 2012 iMac? i thought the new slim iMacs runner cooler :confused:
     
  6. yjchua95 macrumors 604

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    #6
    If you're playing a game, these temperatures aren't surprising.
     
  7. Mac32 macrumors 65816

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    Nov 20, 2010
    #7
    If you're playing games with your iMac, you should disable CPU boost and use a static higher fan speed, like 1900-2300rpm depending on the game. I also believe having SSD-only (not HD or fusion drive) will result in a less hot iMac too.
    Having these 90c+ temps can't be good for your iMac in the long run...
     
  8. joe-h2o macrumors 6502a

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    Jun 24, 2012
    #8
    They do.

    I have the same iMac and I can comfortably throw on a GPU over clock without getting near 90 ºC.

    If I really push the card with a modest over clock I can get it to 80 ºC or so, but typically I run it at stock speed and it sits at around 72-76 ºC under load.

    I don't manually force the fan to run higher - it handles it just fine with whatever stock control system the iMac uses under bootcamp.
     
  9. insane79 macrumors 6502

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    Aug 20, 2008
    #9
    hmmn, is there a way to OC the gpu on mac osx ?

    Thanks..
     
  10. Steve121178 macrumors 68040

    Steve121178

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    Apr 13, 2010
    Location:
    Bedfordshire, UK
    #10
    Just let the computer manage itself! You don't need to do any of that.

    And if people are playing a graphically intensive game then of course the GPU will get hot, but it is designed to do so! JFC!!!

    Some people can't be very busy if they have time to worry about and monitor CPU/GPU's all day long. These people need to get a grip and do something more productive with their time.
     
  11. librarian macrumors regular

    Joined:
    Sep 24, 2011
    #11
    sounds very high.
    Mine does not go past 88C° while playing the same game, even while
    overclocked. Something must be off, try to upgrade videocard drivers if you haven't.
     
  12. Mac32 macrumors 65816

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    Nov 20, 2010
    #12
    Wrong.
     
  13. h9826790 macrumors 604

    h9826790

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    Apr 3, 2014
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    Hong Kong
    #13
    You have to flash the ROM on your graphic card to achieve that. Not recommended on a single ROM all in one computer. If anything goes wrong, you will basically brick your iMac.
     
  14. Steve121178 macrumors 68040

    Steve121178

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    Apr 13, 2010
    Location:
    Bedfordshire, UK
    #14
    I'm right. You don't need to do any of what you said. Disabling CPU boost for example is unnecessary. The CPU and Mac is designed to run at a certain temperature and if it ever reached an unsafe level then it would simply shut down to prevent damage.

    I've yet to hear of any game or application causing any modern Mac to shut down. However, if you chose a GTX 680MX then you should be expecting it to get toasty as it's a beefy chip.
     
  15. Mac32, Jul 1, 2014
    Last edited: Jul 1, 2014

    Mac32 macrumors 65816

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    Nov 20, 2010
    #15
    Yet another "expert" on the Internet... Maybe I should specify the amount of gaming here: I would highly recommend that people take my advice to heart if they game a lot and overclock the GPU (which a lot of people who game regularly would do), and want their iMac to last 4-5 years without issues! If you only game a little once in a while, then you don't need to bother with CPU turbo boost and fan speed software.
     
  16. joe-h2o macrumors 6502a

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    Jun 24, 2012
    #16
    Just as "expert" as you. The both of you have equal weight to your arguments: very little.
     
  17. Mac32, Jul 2, 2014
    Last edited: Jul 2, 2014

    Mac32 macrumors 65816

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    Nov 20, 2010
    #17
    I see, but your advice is of little value if the OP wants to overclock his GPU. Also, I was not the one with the bad attitude. I've spent much time on this forum helping people to get the most out of their GPU, but I have better things to do than helping ingrates. I will not make that mistake again.
     
  18. joe-h2o macrumors 6502a

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    Jun 24, 2012
    #18
    The original comment was that the iMac can handle itself (thermally) without needing to disable boosts or implement third party software to control the fan, which is accurate (both in OS X and under Windows).

    No mention of over clocking was brought up in relation to that claim, which you resoundingly dismissed out of hand with a single word comment that was factually inaccurate. Yeah, I'm really seeing that "help" you claim to offer.

    Trying to muddy the waters here and change the argument does nothing to address the fact that you were incorrect in stating that the comment you replied to so rudely was wrong.
     
  19. beosound3200 thread starter macrumors 6502a

    Joined:
    Nov 23, 2010
    #19
    i measured it more thoroughly and it too doesnt pass 88C, but when i run furmark, at native resolution, 2x msaa, it gets 92-93C and stays there. is this acceptable? thank you
     
  20. Mac32 macrumors 65816

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    Nov 20, 2010
    #20
    Blah blah blah...
     
  21. joe-h2o macrumors 6502a

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    Jun 24, 2012
    #21
    What an oddly worded concession.

    Usually it's easier just to say you lost the argument and move on, or simply ignore the post quietly after being called out on being so wrong.

    Each to their own though.
     
  22. cynics macrumors G4

    Joined:
    Jan 8, 2012
    #22
    Find an app and increase the fan speed when you intend to be using it at those temps for long durations.

    My 775M does the same thing. When I'm going to be gaming for hours on end I set the fan to around 1800-1900 RPM and it keeps it around 80-85C.
     

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