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Hello, Has anybody tried a CPU upgrade to Intel Core 2 Extreme X9000 S-Spec SLAZ3 on a iMac Intel 24" (mid-2007) mounting CPU X7900 and running OS X El Captain? Thanks, Marco
Lets look deeper at the differences between what Apple used and what you are trying to install: Intel Core 2 Extreme Processor X7900Intel Core 2 Extreme Processor X9000 Sadly these are based on different CPU constructs Merom Vs Penryn so its iffy if the older x7900 microcode will work on the newer X9000 CPU. Apple offered the iMac7,1 series logic board in both 20" & 24" versions. The 2.8 GHz Core 2 Extreme (X7900) CPU is just one configuration 24" iMac 2.8 GHz Core 2 Extreme. So if you have one of the other iMac7,1 24" systems then you could swap out the CPU to the X7900 for sure! I don’t think there’s enough benefit jumping to the X9000. In any case OS-X El Captain (10.11.x) is as high as you can go per Apple.
