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iMac crystal oscillator / internal clock

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  • iMac crystal oscillator / internal clock

    Hello,

    I am making a presentation about the use of crystal oscillators in computers. There is an image of the motherboard of an iMac (late 2009 model, 21.5"), you can see it here:



    and here:

    (please ignore the red rectangle)

    The oval-ish shaped, raised, silver colored component on the lower right of the images looks like an oscillator to me.

    If that is indeed the oscillator, I was wondering if anyone can tell me specifically which oscillator it is? I would like to know the part number if possible (could it possibly be the HC-49?).

    You can see more pictures of the iMac here:

    http://www.kodawarisan.com/k2009_03/...risanaeaa.html

    Thank you to anyone who knows this.....

    Jason
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