1. iMore Question's Avatar
    Am exploring a MacPro1,1 cpu upgrade to be able to run the current 64-bit OS version. Have graphics via ATI Radeon HD 2600 XT 256 MB. I have been using a software work around to run OS 10.9.5, but this hack does not seem to be available for any later OS versions. What are the options for replacing the dual core Xeon chips? No budget for new hardware. Am hoping cpu refresh will get the job done.
    08-29-2015 05:56 PM
  2. kch50428's Avatar
    Everything I've read says the cpu in that model is not a 'user replaceable' item... And you could spend more money doing that than you would on a used, or refurbished Mac with better specs.
    08-29-2015 08:48 PM

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