2009 early Mac Pro up grade
My 2009 Mac Pro has a 2.66 quad core cpu with 8 gigs of memory
I would like to up grade to 8 core dual cpu tray with 2.26 processor’s with 64 gigs of memory
can I just swap trays or is firmware needed the Mac OS I am running is high serria 10.13
Mac Pro, 10.13