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ddr3-1333

  1. A

    MP 1,1-5,1 Can anyone confirm my Mac Pro (5,1) can use 1333 MHz memory?

    Hi, I know this may have been discussed before (I searched but couldn't find the answer, or need a bit more clarification.....I'm not super technical even though this site and all the info guided me thru 4,1 to 5,1 upgrade a few months ago...thanks for all that!!) I want to speed up my Mac Pro...
    • Ashton1
    • Thread
    • ddr3-1333 macpro 2009 ram
    • Replies: 14
    • Forum: Mac Pro
  2. pixelatedscraps

    2R Dual rank vs 4R Quad rank RAM on cMP 5,1

    I just installed 64Gb (4x16Gb) of PC3-10600 DDR3-1333 4R (quad ranked) RAM into the cMP 5,1 in my signature (slots 1-2, 5-6) and its displaying as running at 1066Mhz not 1333Mhz in System Report. Would I be advised in exchanging these for 2R dual ranked chips instead of 4R in order to gain the...
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