Mac pro 2.66 cpu upgrade

[Enny5]

Hi guys with this firmware hack going from 4.1 mac pro to 5.1 i read that i will be able to upgrade my cpu, where i was told that it is imposable to do this in 2009 2.66 mac pro 4.1.

Thanks

 

[Umbongo]

Hi guys with this firmware hack going from 4.1 mac pro to 5.1 i read that i will be able to upgrade my cpu, where i was told that it is imposable to do this in 2009 2.66 mac pro 4.1.

Thanks

With a 4,1 Mac Pro you can upgrade the processor to any Nehalem based Xeon 3500 Core i7 9xx processor. These are only 4-core processors and I would recommend the Xeon W3565 which is a 3.2GHz quad-core for around $300 new.

With the 5,1 firmware you are able to use Westmere based Xeon 3600s and Core i7 9xx processors which have 6 cores. Here I would recommend the W3680 which is a 3.33GHz 6-core for around $600.