My iMac is (ahem) irregularly clocked.

Discussion in 'iMac' started by HubmaN, Sep 30, 2008.

  1. HubmaN macrumors newbie

    Joined:
    Sep 30, 2008
    #1
    Decided to open up CPU-Z one day, and realized that one of my iMac's (2007 refresh, 2.4 GHz) cores was clocking far lower than 2.4 GHz. It seems it only has a 6x speed multiplier, while the other one has a 12x multiplier.

    Is this normal? I'm such a noob :p

    (this is RMClock, not CPU-Z.)

    [​IMG]
     
  2. AlexisV macrumors 68000

    AlexisV

    Joined:
    Mar 12, 2007
    Location:
    Manchester, UK
    #2
    I don't think it's right anyway. Don't iMacs have Merom processors?
     
  3. TheG3Guy macrumors member

    TheG3Guy

    Joined:
    Aug 18, 2008
    Location:
    New Milford,CT
    #3
    it still says the maximal for both processors in 12x, so id guess that the other processor isnt being used and is power down to save power
     
  4. HubmaN thread starter macrumors newbie

    Joined:
    Sep 30, 2008
    #4
    Actually, I think Merom is the mobile version of Conroe.

    Hmm, I can only hope :)
    I'm not sure if Vista has that capability, though, but it's strange in any way.
     
  5. HubmaN thread starter macrumors newbie

    Joined:
    Sep 30, 2008
  6. Eidorian macrumors Penryn

    Eidorian

    Joined:
    Mar 23, 2005
    Location:
    Indianapolis
    #6
    That's Speedstep in action. It's supported in Windows XP and Vista. When idle or under low load your processor will drop to the 6x multiplier.
     
  7. FF_productions macrumors 68030

    FF_productions

    Joined:
    Apr 16, 2005
    Location:
    Mt. Prospect, Illinois
    #7
    It's built into the processor, it'll under-clock when idle/light use.
     
  8. Lord Zedd macrumors 6502a

    Lord Zedd

    Joined:
    Oct 24, 2007
    Location:
    Denver, Colorado
    #8
    Speedstep. The iMac is a laptop with a big harddrive and big LCD.
     
  9. HubmaN thread starter macrumors newbie

    Joined:
    Sep 30, 2008

Share This Page