Mac mini (Late 2012) Distorted Graphics

Discussion in 'Mac mini' started by surfnode, Aug 9, 2016.

  1. surfnode macrumors member

    surfnode

    Joined:
    Aug 27, 2013
    Location:
    United Kingdom
    #1
    Hi,

    I have a Mac mini (Late 2012) with graphics distortion problem.

    2.3 GHz Intel Core i7
    16GB Ram

    As you can see in the video its quite messy. I've also noticed that the Mini is running quite hot (currently 70c)



    This appears to happen most when Firefox is open, enabling hardware acceleration doesn't appear to make a lot of difference.
     
  2. Kaida macrumors regular

    Kaida

    Joined:
    May 28, 2016
    Location:
    Singapore
    #2
    check if your fan is faulty. does it happen only when firefox is open? Is it coming on only after the mm is running at high temps?
     
  3. fischersd macrumors 601

    fischersd

    Joined:
    Oct 23, 2014
    Location:
    Kitchener, Ontario, Canada
    #3
    I use smcfancontrol (https://www.eidac.de) - that will tell you what rate your fan is spinning at (also let you increase the speed).

    Obviously, increasing your fan speed will have an effect on its life, but it could also get your mini down to an acceptable temperature. (mind you, I'd maybe consider running chrome if firefox is behaving that badly).
     
  4. grcar Suspended

    grcar

    Joined:
    Sep 28, 2014
    #4
    Web browsers can be cpu hogs because they drag in lots of javascript garbage which stresses the system.

    Obviously the mini is overheating. There are quite a few posts on this blog and elsewhere about heating problems with the mini including your model.

    I suggest installing some monitoring app that gives a more detailed readout of the temperatures on different parts of the system.
     
  5. fischersd macrumors 601

    fischersd

    Joined:
    Oct 23, 2014
    Location:
    Kitchener, Ontario, Canada
    #5
    smcfancontrol also rotates the readings from the 3 temperature probes in the mini.
     
  6. Cycling Asia macrumors regular

    Joined:
    Mar 19, 2016
    #6
    A bit of a warning about smcfancontrol (issues I've had at least on my mba). I had previously used smcfancontrol and was not able to set "auto" mode. After uninstalling the app, my fan would not spin up at all. The temperature would run upwards of 99 degrees (celsius) if any apps used CPU (ffmpeg encoding for example). SMC and NVRAM (or PRAM) reset failed to restore the fan settings. I've since switched to Macs Fan Control (http://www.crystalidea.com/products?source=fancontrol_mac) which is free and enables settings back to auto mode, and I've had no issues with it on any of my Macs.

    Anyway, I do hope you resolve your graphics issues.

    Disclaimer: I'm not stating that smcfancontrol is bad, it is just that I had a lot of issues regarding the use and subsequent uninstallation of it. YMMV. I am also not associated with Macs Fan Control - I just think that it is a good alternative to smcfancontrol.
     
  7. grcar Suspended

    grcar

    Joined:
    Sep 28, 2014
    #7
    There is also Intel Power Gadget

    For descriptions of overheating quad core minis see the last few posts in the thread "how to keep a mac mini from overheating?"
     
  8. adam9c1 macrumors 65816

    adam9c1

    Joined:
    May 2, 2012
    Location:
    Chicagoland
    #8
    Can you provide a link?
     

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