Full fan speed during in-built chess. Is it normal?

Discussion in 'MacBook Pro' started by programmer<3, Aug 22, 2014.

  1. programmer<3 macrumors newbie

    Joined:
    Aug 22, 2014
    #1
    I recently got my rMBP 15" mid-2014 model. It is equipped with an i7 cpu and 16 gb ram. 2 days ago, I fully charged my mac. Then, I began my work on a document. After working for 6 hours, I thought I'd take a break. At that time, 20% battery was left. I opened chess. Within 10 minutes into the game, my macbook's fan started roaring at full speed. I checked the activity moniter and saw sjeng (chess engine) using 100% cpu. Is this normal? Can chess really hog the cpu and force the fans to full speed on an i7?

    MacBook Pro (Retina, 15-inch, Mid 2014), OS X Mavericks (10.9.4)
     
  2. maflynn Moderator

    maflynn

    Staff Member

    Joined:
    May 3, 2009
    Location:
    Boston
    #2
    What's your temperature?

    Any process pegging the CPU at 10% will cause the fans to kick into higher gear. Given the computationally complex algorithms of chess, I wouldn't be surprised. I'm not a chess player so I'll leave it at that.
     
  3. Weaselboy Moderator

    Weaselboy

    Staff Member

    Joined:
    Jan 23, 2005
    Location:
    California
    #3
    I just fired up Chess and played a few minutes and CPU hovered around 7% the whole time. Does it do this is you make a new test login account and play from there?
     
  4. programmer<3 thread starter macrumors newbie

    Joined:
    Aug 22, 2014
    #4
    Open the chess and check the "sjeng" process. It will show something around 100%.
     
  5. Weaselboy Moderator

    Weaselboy

    Staff Member

    Joined:
    Jan 23, 2005
    Location:
    California
    #5
    That is what I did. I was not clear in my post, but the sjeng process sat at 6-7% the whole time I as playing chess. Never once spiked like yours is.
     

Share This Page