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RAM compatibility

Discussion in 'Hardware' started by iafc, Dec 15, 2011.

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  1. iafc

    iafc Thread Starter

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    Belar Advisor suggested I write to you.

    I have a Sony Vaio VPCCW21X and have bought from Sony two Crucial 4gb CT51264BC1339 to replace the 2gbx2 RAM presently in my computer.
    I need to verify if CT51264BC1339 is compatible with my machine.
    Crucial says it is but when checking their website it is not listed as compatible. They list instead:
    CT2330538
    CT1265009
    CT1265001
    They mentioned something like "external" number... that I don't understand.

    Could you please explain? Also what will happen if install these two RAM and they are not compatible with my PC, will it kill it?
     
  2. flavallee

    flavallee Trusted Advisor

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    Frank
    I believe you made a typo and it's actually a Sony VAIO VPCCW21FX laptop.

    It supports up to 8 GB and uses 204-pin DDR3 PC3-8500(DDR3-1066), CL=7, 1.5V, Unbuffered, Non-ECC modules.

    Is that laptop running Windows XP or Vista or 7, 32-bit or 64-bit?

    ---------------------------------------------------------
     
  3. iafc

    iafc Thread Starter

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    Sorry, I did make a typo and it is a VPCCW21FX and is a 64-bit using Windows 7.
    The case of the 4GBx2 Crucial RAM shows: 4GB DDR-1333 (PC3 10600) SODIMM204PIN CT51264BC1339.
    I hope this all means something to you.... It certainly doesn't mean anything to me.
    Do you think I am safe installing it?
     
  4. flavallee

    flavallee Trusted Advisor

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    Frank
    They're faster speed modules, but they may still work. Some laptops are more finicky than others about modules, so I can't give you a 100% guarantee.

    Completely turn off the laptop, then remove the battery, then unscrew and open the module compartment, then remove/install the modules.

    After you're done, replace the battery, then turn on the laptop.

    You'll know soon enough if the new modules work.

    -----------------------------------------------------------

    Considering that laptop comes with 4 GB of RAM, is there a reason why you want to max it out to 8 GB?

    Doubling the amount of RAM isn't going to improve speed.

    -----------------------------------------------------------
     
  5. iafc

    iafc Thread Starter

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    Why do I want to max it to 8GB? Good question.
    The thing is that I am planning on editing videos that may run into 1 hr worth of clips or more. I was concerned about speed. Presently I am fine right now (I think) even though at times when accessing certain programs (photoshop CS5 for example) I get a message that I don't have enough memory.
    FYI I have 353GB free in my hard drive.
     
  6. flavallee

    flavallee Trusted Advisor

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    Without knowing what type/speed processor and what type graphics and what speed hard drive is in that laptop, increasing the amount of RAM from 4 GB to 8 GB may be futile if the other components are a performance bottleneck.

    Video editing and Adobe Photoshop CS5 are very system-hungry, so hopefully that laptop is up to the task.

    --------------------------------------------------------
     
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