Simple test to compare temps and fan speeds

Discussion in 'MacBook Pro' started by propower, Mar 18, 2011.

  1. propower macrumors 6502a

    Joined:
    Jul 23, 2010
    #1
    Hey all,

    There is a simple test we can all do to do some (hopefully) objective comparisons......

    Get CPU test http://www.coolbook.se/CPUTest.html (free)
    Set laptop on table (or similar)
    Open lid (I did at 90 degrees)
    unplug any powered peripherals
    unplug any external monitor

    Get either istat menu demo (14day free) or free istatpro widget
    http://bjango.com/mac/istatmenus/
    Set CPU tab to show multiple instances as one item
    Sensors to show CPU or CPUA (not CPU1 or CPU2)
    Degrees in Celsius

    Set CPU test at
    Test Type = Small
    Repititions = Unlimited
    Instances = 1

    Run for 10 minutes undisturbed and report
    1) System load =
    2) Use your best guess for average CPUtemp (mine jumped around a bit)
    3) Exhaust Fan rpm

    On my 2011 i7 2.7 13.3 MBP I get.......
    System Load = 26%
    CPU temp = 75 to 80 degC
    Fan rpm = 4000

    Any one else want to play??

    -Lee
     
  2. gerlitzappel macrumors regular

    Joined:
    Feb 5, 2004
    Location:
    South Florida
    #2
    2008 c2d 2.53 15 mbp

    Thanks Lee, I've been wondering if my MBP runs hot, had to have the battery replaced about 2 years in due to swelling. I was surprised to see that our temps
    were pretty much the same.

    Jason

    1) System load = around 50% for user but system was as low as 0%, it looked like CPUTest was using 100% of one of my cores
    2) average CPUtemp. probably 78 Celsius
    3) Exhaust Fan rpm, anywhere from 4200 to 5200, both fans
     

    Attached Files:

  3. Exana, Mar 19, 2011
    Last edited: Mar 19, 2011

    Exana macrumors regular

    Joined:
    Mar 15, 2011
    #3
    CPU won't be hot using only 1 instance.

    MacBook Pro 15” 2011 Core i7-2720QM 2,2 GHz

    As request :
    System Load = 0 to 12%
    CPU temp = 68 to 70°C
    Fan rpm = 2600
    Finished tests = 650
    Elapsed time = 10 minutes


    With 8 instances :
    System Load = 99 to 100%
    CPU temp = 86°C
    Fan rpm = 4700
    Finished tests = 2144
    Elapsed time = 10 minutes

    BTW, I could be nice to tell about Finished tests within 10 minutes.
    [​IMG]
     
  4. Jmouse macrumors 6502

    Joined:
    Mar 14, 2011
  5. nebulos macrumors 6502a

    nebulos

    Joined:
    Aug 27, 2010
    #5
    sweet!

    i don't know about this stuff, so i can't judge the methodology, but this is precisely the kind of thread needed to clarify this topic.

    is this intended to test 'medium load', as opposed to the extremes: idle, heavy load? ... this is what some complained about in the 'if concerned about temps, wait for ivy ..." thread. (by the way, i had some questions for you over there. and, again, THANKS for the post there!)

    anyways, thanks again for more great work! i hope many will participate.
     
  6. slumpey326 macrumors 6502

    Joined:
    Jun 18, 2010
    Location:
    Florida
  7. Mik3F macrumors 6502

    Joined:
    Feb 3, 2011
    #7
    MacBook Pro 2011 Core i5 2,3 GHz 13"

    As request :
    System Load = 0 to 12%
    CPU temp = Mid 70's to 81 degC
    Fan rpm = 2800
     
  8. gerlitzappel macrumors regular

    Joined:
    Feb 5, 2004
    Location:
    South Florida
    #8
    2008 c2d 2.53 15 mbp w/8 instances

    mine finished quite a few less tests than the i7, not suprisingly
     

    Attached Files:

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