iMac temperature and fans

Discussion in 'iMac' started by Jasonbot, Oct 30, 2006.

  1. Jasonbot macrumors 68020

    Jasonbot

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    The Rainbow Nation RSA
    #1
    My 20" iMac C2D doesnt show any temperature sensors other than processor and no fan speeds in any program I have?? anyone else have this? Is it the new iMac/intel thing or is it just mine. The old G5 shows hundreds of temp sensors and fan speeds!
     
  2. Jasonbot thread starter macrumors 68020

    Jasonbot

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    #2
    Guess no one has the same problems? I should maybe return my iMac???
     
  3. Eidorian macrumors Penryn

    Eidorian

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    Mar 23, 2005
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    Indianapolis
    #3
    Software currently can't read the fan sensors.
     
  4. Jasonbot thread starter macrumors 68020

    Jasonbot

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  5. Eidorian macrumors Penryn

    Eidorian

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    #5
    Core Duo Temp, Temperature Monitor, and the iStat widgets should be able to read your temperature.
     
  6. Jasonbot thread starter macrumors 68020

    Jasonbot

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    #6
    Ja I got that! But there's only 1 temp sensor in the whole mac? on the processor? On the G5 there were sensor for incoming air optical drive...
     
  7. jimbama macrumors newbie

    Joined:
    Oct 5, 2006
    #7
    Similar issue here (20" imac C2D)- istat widget won't recgonize fans or temp sensors for some reason. I have yet to try the other utilities mentioned....
     
  8. Eidorian macrumors Penryn

    Eidorian

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    Mar 23, 2005
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    #8
    There's only ONE temperature sensor that we can currently read due to registers on the Core Duo storing temperature information. Just dump the registers and the CPU temp can be read.

    Wait for more software and updates for more system info. Yes, the G4 and G5 machines had MANY more readable sensors.
     
  9. Jasonbot thread starter macrumors 68020

    Jasonbot

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  10. Macmadant macrumors 6502a

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    Jun 4, 2005
    #10
    there is only one sensor, and I've got nothing to recognise fan sensors, of which i don't think there is, shame, i like to see what is going on, the imac G5 had 2 fan sensors and 3 Temp. sensors
     
  11. Jasonbot thread starter macrumors 68020

    Jasonbot

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    #11
    I dont think they'de short change us. Probably due to the new Intel architecture it's just harder to find the sensors. I wish I was a 1337 coder/hacker/programmer. Unfortunately I'm still stuck on non-GUI java for now but I'm learning!
     
  12. mulletman13 macrumors 6502a

    mulletman13

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    Jul 1, 2004
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    Los Angeles.
    #12
    I am pretty pleased that my 24"er runs at around 100 F most of the time...

    however it is quite annoying that the fans are on all the time. Any way to turn these fans off? The low hum is quite annoying...
     
  13. eXan macrumors 601

    eXan

    Joined:
    Jan 10, 2005
    Location:
    Russia
    #13
    Dpnt know about "Many sensors in G5". Maybe you're talking ablot Power Macs? Because there are only 2 temp sensors in my iMac G5 rev. B - CPU and HD. Right now with Safari, iChat and Mail running my CPU temp is 72C, while HD is 49C. I dont know if its bad or not, but 100F (37C) in 24" iMac sound really cool.

    If you somehow turn the fans off, your Mac will melt.

    To reduce fan noise you can open a window (if you're in a city) or turn on music :)
     
  14. astewart macrumors member

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    Sep 12, 2006
    Location:
    Charlottetown
    #14
    My iMac Processor Temperature is a Steady 34-36C (94 F) when on the Desktop, even when a few programs are open. (ie. iTunes, Safari, etc.). Seems to run nice and Cool compared to the G5 Processor.
     
  15. Macmadant macrumors 6502a

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    Jun 4, 2005
    #15
    well just downloaded hardware monitor 4, and our imacs have over 9 Temperature sesors and around 4 fan speed sensors although you have to pay to see the fan speed
     
  16. Eidorian macrumors Penryn

    Eidorian

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    Mar 23, 2005
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    Indianapolis
    #16
    Yeah I just downloaded it too. I'll consider buying myself a copy but it's fun to try it.
     
  17. Macmadant macrumors 6502a

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    Jun 4, 2005
    #17
    Hopefully the Guys who make the iStat nano and pro, will make use of these sensors sometime soon
     
  18. I'mAMac macrumors 6502a

    I'mAMac

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    Aug 28, 2006
    Location:
    In a Mac box
    #18
    I have Temperature monitor and im getting readings on my hard drive, mt optical drive, processor, etc. I dod not get them on istat nano or pro though. By the way, what temp should my processor be? Its all in celsius and im not sure where they should be.
     
  19. Macmadant macrumors 6502a

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    Jun 4, 2005
    #19
    Any where between 30-45C is normal
     
  20. I'mAMac macrumors 6502a

    I'mAMac

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    In a Mac box
    #20
    Thanks. Here is a screenshot of what it is reading. I know its a littla hard to read.
    [​IMG]
     
  21. Eidorian macrumors Penryn

    Eidorian

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    Mar 23, 2005
    Location:
    Indianapolis
    #21

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