MBP RAM Latency timings

Discussion in 'MacBook Pro' started by Kooda, Jun 1, 2012.

  1. Kooda macrumors newbie

    May 23, 2012
    I'm looking to upgrade the RAM in my MBP 13" i7 2.8 to 16GB.
    I saw a youtube video HERE where the guys states @25 sec(ish) that the timings need to be 9-9-9-24.

    The RAM I'd like to use is Corsair Vengance SO-DIMM. The 8GB (2x4GB) kit has CAS of 9-9-9-24 LINK and I have seen a review stating it works OK in an MBP.
    The 8GB sticks of the same are 10-10-10-27, so if I want 16Gb I would use 2 of these. LINK

    My question is this: Does the Latency actually mean the RAM won't work at all? Or not as fast as it might? Or be unstable?

    Many thanks.
  2. ivoruest macrumors 6502


    Jul 12, 2010
    Mine's got new kit of ram with different Latency and have had no problems whatsoever. Never heard of this giving trouble to people neither.
  3. drambuie macrumors 6502a

    Feb 16, 2010
    Your MBP will run slightly slower, but you won't notice it unless you run benchmarks. The RAM timings are stored in tables in the memory chips, along with other manufacturer's data. The system reads the tables and the memory controller will adjust its timings accordingly.
  4. Kooda thread starter macrumors newbie

    May 23, 2012
  5. Kooda thread starter macrumors newbie

    May 23, 2012
    Thanks guys.

    The Ram arrived today and I installed it.

    About is now showing 16gb running @ 1600 Mhz. Graphic memory is up to 512mb too.

    I also bought a 240 GB SSD.:)

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