Question to users of MBP 15 2016 + Two LG UltraFine 5k

Discussion in 'Mac Accessories' started by Perwol, Mar 10, 2017.

  1. Perwol macrumors newbie

    Joined:
    Oct 10, 2009
    #1
    Hi. I have question to users of Two LG UltraFine 5k with MBP 15 2016 (with 460 GPU would be best). If anyone of you could give me info about temps/fans rpm on clamshell mode? Is this config generate noise on idle? I need to know it before buying.

    Sorry for my english...
     
  2. craig1410 macrumors 65816

    craig1410

    Joined:
    Mar 22, 2007
    Location:
    Scotland
    #2
    Hi,
    I've got 2 5K displays and a 460 GPU but I don't run in clamshell mode because I want to be able to use the laptop display, keyboard, trackpad and touch bar. See attached photo. I'll try to take a look at the temps and fans tomorrow but I can't really run in clamshell as I don't have a keyboard and trackpad to use with it right now.

    By the way, don't apologise for your English, it's very good. :)
     

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  3. slaWter macrumors member

    slaWter

    Joined:
    Dec 22, 2016
    Location:
    Switzerland
    #3
    I'm using two LG 5Ks (Default Scaling) with the MBP (2.9GHz, 460) in clamshell mode. During casual usage (iTunes, Safari, YouTube) the fans are in the 2600-3000 RPM range. I can't hear the fans spinning, even when playback is muted. As a reference, before with a single 27" Cinema Display, the fans were spinning at around 2100 RPM. Radeon GPU Die temp is 59°C. Of course, that might all change a bit in the summer with higher room temps.

    The Radeon Pro 460 is a must have anyway for two 5Ks due to the increased VRAM.
     
  4. craig1410 macrumors 65816

    craig1410

    Joined:
    Mar 22, 2007
    Location:
    Scotland
    #4
    Thanks for the reminder - mine are currently at 2900 (left) and 2700 (right) with GPU die temp of 65C (ambient around 22C). This is in non-clamshell mode with 2.7GHz CPU and 460 GPU. I ca only really hear the fans if I lean my ear down towards the keyboard but the sound is quite soft and not intrusive.

    To give an idea of load, I'm currently doing web development so I have 2 Safari windows with 4 and 6 tabs respectively, Mail.app, Messages.app, Skype, 4 terminal tabs, Preview.app, Tower Git client, Textmate and my RubyMine IDE running in a total of 8 'spaces'
     
  5. slaWter macrumors member

    slaWter

    Joined:
    Dec 22, 2016
    Location:
    Switzerland
    #5
    Just a small update: running both screens with the More Space scaling option, the idle GPU Die temp is now about 5°C higher, around 63-65°C.
    Performance is still good. But it takes less to spin up the fans.
     

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