external monitor and heat

Discussion in 'MacBook Pro' started by jugglemyplums, Nov 10, 2008.

  1. jugglemyplums macrumors newbie

    Jul 15, 2008
    I have a 19" Dell monitor that I want to use with my mbp. I have plugged it in a few times and it seems like the computer runs a lot hotter with both screens running. Is this normal? It seems like it would be considering it must work harder to output to 2 screens.
  2. ghettochild macrumors regular

    Jun 12, 2007
    Bay Area, CA
    Exactly. The GPU will run hotter.

    That said, the overall temps on my MBP only go up marginally when it's hooked up to my 23" Cinema Display. However, I do increase the fan speed via SMCfancontrol.

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