The Mac Pro First Generation is an Intel Xeon-based workstation computer manufactured by Apple Inc. The first generation model includes the machines from 2006 through 2008.

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Mac Pro only 1 CPU!

Hi i have mac pro 1.1 2006 2.66 CPU two Xeon

i have lion 10.7.5

when run about mac, show number of processor ( 1 ) cpu! not ( 2 ) why?

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Chosen Solution

Check your EFI firmware EFI firmware updates Are you running the latest?

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thank you man but , i installed EFI firmware update

not work !! ??

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Not understanding your answer here - Your not running the latest and when you tried it won't update. Is that correct? What version are you running and can you supply the last four digits of your serial number so we can ID which version of Mac Pro you have.

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mac pro 1.1 orginal 2.66 ( 2006 )

YUQ2

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What is your EFI firmware level and SMC version do you have now?

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SMC Version (system): 1.7f10

Boot ROM Version: MP11.005C.B08

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