2009 4,1 CPU upgrade question

Discussion in 'Mac Pro' started by fabriciom, May 18, 2016.

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  1. fabriciom, May 18, 2016

    fabriciom macrumors 6502

    fabriciom

    Joined:
    Feb 17, 2008
    Location:
    Madrid, España
    #1
    Hello,

    Im looking to upgrade the CPUs on my 2009 mac pro again. Do they have to be a matched pair?

    I did this long time ago and I don't remember if I bought matched paired.

    -Thanks
     
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  2. h9826790, May 18, 2016

    h9826790 macrumors G4

    h9826790

    Joined:
    Apr 3, 2014
    Location:
    Hong Kong
    #2
    AFAIK, all you need is the same model and same step. Different model sure won't work, different step on some CPU won't work.

    Since you already updated once, I assume you know you need de-lidded CPU, or use the count turn / washer method.
     
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  3. fabriciom, May 18, 2016
    Last edited: May 18, 2016

    fabriciom thread starter macrumors 6502

    fabriciom

    Joined:
    Feb 17, 2008
    Location:
    Madrid, España
    #3
    Im looking to upgrade to the X5690. Do they have to be the same step?

    I used the 2mm washer trick on my current cpus.
     
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  4. scott.n, May 18, 2016

    scott.n macrumors 6502

    Joined:
    Dec 17, 2010
    #4
    Yes, they need to have the same stepping - but all X5690 have the same stepping. Any pair should work.
     
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  5. fabriciom, May 18, 2016

    fabriciom thread starter macrumors 6502

    fabriciom

    Joined:
    Feb 17, 2008
    Location:
    Madrid, España
    #5
    OK great. Thanks!
     
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