![]() ![]() Single CPU machines take standard W-series CPUs, while dual CPU models require dual-QPI enabled CPUs to function properly. Both machines are similar in that they support Intel's new x58 chipset with QuickPath Interconnect using the Nahalem or Westmere microarchitectures rather than the Core-base Xeon CPUs of 2008 and earlier Mac Pros.Īfter the update is installed, it's then easy to upgrade to faster new Westmere Xeon CPUs, given that the new chips are socket compatible with the 2009 Mac Pros. ![]() Loading the new firmware results in Mac Pro 4,1 machines (also referred to as " Early 2009") to report they are now Mac Pro 5,1 models (" Mid 2010"). The discovery, originally discussed on forums and detailed by Chris Foresman of Ars Technica, allows users of the earlier Mac Pro models to install an EFI firmware update that essentially converts the machine into the 2010 model, albeit lacking the faster CPUs and RAM that Apple began installing with the new model. Wednesday, May 11, 2011, 01:00 pm PT (04:00 pm ET) The discovery of how to install new firmware updates on 2009 Mac Pros enables the machines to support dual six-core Westmere Xeon CPUs, faster 1333MHz RAM, and adds audio-out support to the Mini DisplayPort interface, features that were not delivered by Apple until mid 2010. Firmware hack converts 2009 Mac Pro to use faster RAM, CPUs
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