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    vaio sz71xn ram upgrade

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by awpe, Jul 4, 2011.

  1. awpe

    awpe Notebook Enthusiast

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    Hi, my laptop has 2 x 1gb ddr2 667mhz cl5 modules, am I right that putting 800mhz ram will not work on 800mhz but just 667 and the same thing will happen with latencies - putting cl4 ram will do nothing and this cl4 ram will work as cl5?

    P.S. vaio sz71 is not a gamers-oriented laptop so there isn't anything in bios connected with changing ram latency or fsb frequency or cpu/ram multipliers, only if I try some soft like setfsb I''ll be able to change frequencies...
     
    awpe, Jul 4, 2011
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  2. atobe

    atobe Notebook Enthusiast

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    Yes it'll revert to the slower speed that the system requires. It might run at the lower CL if you run it at the lower speed also. a CL5 800Mhz ram might run at CL4 @ 677Mhz. Not that you'll noticed a difference anyways.
     
    atobe, Jul 4, 2011
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  3. awpe

    awpe Notebook Enthusiast

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    I didn't understand, if I buy KHX5300S2LLK2/4G which is cl4 and 667mhz it will work like cl 5 667 despite bios or like cl 4 667 ? You've said 800mhz should work like 667 but with lower latency does it mean buying 800mhz cl4 will work as 667mhz cl3 for me?))
     
    awpe, Jul 4, 2011
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  4. awpe

    awpe Notebook Enthusiast

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    What difference between cl4 667 and cl5 667, cl4 is expensive :( ...
     
    awpe, Jul 4, 2011
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  5. awpe

    awpe Notebook Enthusiast

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    Hmm, all memory modules should contain information about latency in SPD and motherboard will use this values as default - is it right for laptop MBs?
     
    awpe, Jul 4, 2011
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  6. atobe

    atobe Notebook Enthusiast

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    the difference between cl4/5 isn't that much you won't notice it in everyday use. just get the cheaper ram.
     
    atobe, Jul 4, 2011
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