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    Super Quick Ram Question

    Discussion in 'Lenovo' started by Spiker101, Jul 5, 2011.

  1. Spiker101

    Spiker101 Notebook Enthusiast

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    Hello,

    I got a x220t and it has 1x 4gb "DDR3 SDRAM - 1333 MHz - PC3-10600"

    So all I need is another 1 stick of 4g "DDR3 SDRAM - 1333 MHz - PC3-10600 " to make it dual channel right? Does brand, cas latency and timing matter at all?

    Also when it says PC3-##### what does the number mean?
     
    Spiker101, Jul 5, 2011
    #1
  2. richan90

    richan90 Notebook Consultant

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    I believe the brand shouldn't matter, but your RAM will default to the slowest speed of any individual stick (i.e. the highest latency/timing).
     
    richan90, Jul 5, 2011
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  3. KeithF40

    KeithF40 Notebook Consultant

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    assuming ur comp maxes out at 8gb just buy another stick with at least the specs of the stick you already have. brand doesnt matter.

    idk what pc3 means but dont worry about it unless its just out of curiosity
     
    KeithF40, Jul 5, 2011
    #3
  4. kirayamato26

    kirayamato26 Notebook Deity

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    PC3 just depicts that it is DDR3 RAM, I believe. The 10600 is 8 x 1333 floored to the nearest hundred. I believe it is something like the bit transfer per second. But yeah, just match it with another DDR3 1333MHz module with 9-9-9-24 (I'm assuming that's the timing on your current stick) timings and it should be fine.
     
    kirayamato26, Jul 5, 2011
    #4
  5. TheDonkey

    TheDonkey Notebook Geek

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    The 10600 is the maximum guaranteed clock speed of the chip. Unless you're overclocking, you'd never see that speed, so just go with whichever value is cheapest.
     
    TheDonkey, Jul 5, 2011
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  6. Shayes

    Shayes Notebook Geek

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    Shayes, Jul 5, 2011
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  7. tpdi

    tpdi Notebook Geek

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    Or, if you want to splurge, get the Kingston HyperX. 8GB cost me about $135, but it tests out at about 70% faster than the stock RAM.
     
    tpdi, Jul 5, 2011
    #7
  8. akwok

    akwok Notebook Enthusiast

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    What? If you're talking about bandwidth, that's irrelevant since at stock i3/i5 will always run at 1333mhz. If you're talking about cas latencies, real world gains are negligible.

    Edit: nevermind, it seems to affect the IGP... interesting. I guess if gaming is a concern (on the integrated GPU) and you can justify the price difference for what seems to be a 10% increase in FPS in games, then go for it?

    http://www.futurelooks.com/video-re...imm-1866mhz-dual-channel-notebook-memory-kit/
     
    akwok, Jul 5, 2011
    #8