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1066

  1. countershading

    MP 1,1-5,1 OWC RAM compatible with 2010 cMP but not 2009 cMP (1066 VS 1333Mhz?)

    I ordered a set of 3x 16GB RAM modules from OWC and asked in advance explicitly whether it would work in my 2009 Nehalem Mac Pro 4.1 (2x 2.66Ghz), a machine I had ordered directly from Apple the day it came out and never upgraded since. All original, no hacks. OWC said yes. Yet neither all 3...