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Sony Vaio computer not recognizing added RAM

Hello, I have recently put 4G of RAM into my Sony Vaio in place of the previous 2G of RAM. I bought 2 identical pieces like suggested and put them in correctly. My problem is that my computer is not recognizing the additional 2G of RAM, it still says that I only have 2G in there when there is actually 4G. What should I do so that my computer will recognize the rest of the memory?

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  • jmt3z4 Apr 14, 2009

    I have a 32-bit operating system, but my specs say that I can actually fit up to 4G into my computer on the Sony support website. It did say it would only max out from 3-3.5G but im not seeing that either. Im still seeing teh same exact amount of RAM as before I put the new 4G in? I dont know what else to do.

  • jmt3z4 Apr 14, 2009

    I have 2 different slots. The RAM I bought was the suggested speeds and number of pins as recommended and matching. Each slot is able to fit 2G, a total of 4G capability. I have a Sony Vaio VGN-CR320 E/L model computer. I will try putting one 2G card in one slot and see if its recognized and do the same w/ the other card and message back.

  • jmt3z4 Apr 14, 2009

    I have 4G (2x2) of Transcend 200pin ddr2 (800) so-dimm

  • jmt3z4 Apr 14, 2009

    Alright, thanks for all the help, I was able to figure it out. I turned of the computer and switched and swapped them and it ended up working. I put each one in individually and separate then put them both back together and it ended up working. Thanks a lot man.



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First, do you have a 32-bit or 64-bit operating system. Unless you have the latter, you will only see 3GB maximum.
Second, did you look at the Sony specs (you didn't say what model you have)? Chances are your Sony maxes out at 2GB.

Posted on Apr 14, 2009

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  • Art Ellison
    Art Ellison Apr 14, 2009

    In my experience, there are several kinds (manufacturers) of memory that are just not compatible with computer brands.
    do you have 2 or 4 slots?
    Since you said you put 4 in place of 2, that seems like you have 2 slots. What happens when you populate just one slot?
    Do you see 2 GB?
    How about the other slot? Do you see 2 GB?
    There could be a memory setting in the BIOS, but not having a Sony, I can't say for sure. I'm assuming you got the right speed of memory. Some are actually interchangeable.
    You still didn't say which Sony you have, so I really can't help much by doing any independent research.

  • Art Ellison
    Art Ellison Apr 14, 2009

    OK. And as I said, one unknown is the memory brand here.Kingston and Transcend are usually good. But I've had experience with lots of others.

  • Art Ellison
    Art Ellison Apr 14, 2009

    Glad we got to the bottom of it.
    You're certainly welcome


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Try updating your bios it might recognize the memory upgarde then

Posted on May 10, 2009


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