4,1 to 5,1 Firmware Utility

[wholmes]

Where can I get this utility. Subscribed to netkas.org a month ago but no Administrator approval as of yet. Want to upgrade my MP 4,1 to 5,1 with a 6 core Xeon.

 

[gerardomare1]

hello

https://forums.macrumors.com/threads/1609842/
in the 4º post
or
https://forums.macrumors.com/attachment.php?attachmentid=423064&d=1373767759

 

[wholmes]

Thank you. I thought it may be on here somewhere.

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When I ran it it reported Error 5570. What does that mean? I am running a Mac Pro 4,1 2.66 Quad, 16 Gg Ram on 10.9.4

 

[wholmes]

I believe the error message is tied to not having an approved Apple graphics card in the system. I swapped out my GTX660 for the GeForce120 and the upgrade proceeded smoothly.