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    ADvice for upgrading Vaio FE590 RAM

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by markeyp, Mar 14, 2006.

  1. markeyp

    markeyp Notebook Enthusiast

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    Hi,

    I ordered a custom FE590 that came with a free upgrade from 512 MB of DDR-SDRAM to 1GB DDR-SDRAM (DDR2-533, 512 MBx2). If I wanted to upgrade it to 1.5GB, could I still keep 1 of the 512MB chips in and just get a 1GB chip? Would it have to match the 512MB chip of DDR2-533 or could I go with the DDR2-667? Also if I have to stay with the DDR2-533, do I want PC2 4200 or PC2 4300? What about Cas Latency and ECC? So many different configurations and chips, please help! :confused:

    Thanks,
    markeyp
     
    markeyp, Mar 14, 2006
    #1
  2. Shampoo

    Shampoo Notebook Deity

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    Yes you can get a 1gb module and leave the other 512mb module in.

    You can get a faster ram module, but it will only run at the speed of the slower module.

    I believe laptop ddr2 ram modules are non-registered ecc and CAS Latencies shouldn't be a problem as it will default to the same as the slower ram depending on your bus speed.

    If your laptop's FSB is 533 just go with a 533mhz module of 1gb from the same manufacturer as your other 512mb ram module.

    Mixing different ram modules is not a good idea.

    Cheers,
    Mike
     
    Shampoo, Mar 15, 2006
    #2
  3. matt_h1

    matt_h1 Notebook Deity NBR Reviewer

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    Get 533mhz ram, the 667 ram has almost no speed difference due to its higher latency.
     
    matt_h1, Mar 15, 2006
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  4. markeyp

    markeyp Notebook Enthusiast

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    Thanks to both of you for your quick replies. I guess I'll go with the 533mhz if there is no difference in speed , even though the 590 has a 667 fsb.
     
    markeyp, Mar 15, 2006
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  5. markeyp

    markeyp Notebook Enthusiast

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    Does anyone happen to know what brand (manufacturer - Corsair, Muskin, OTC, etc...) of Ram is installed in the Vaio FE590? I still didn't receive mine yet, but wanted to preorder the Ram so I'll have it when my notebook comes in. Or should I just sell my two 512MB sticks on ebay and buy all new 2Gb DDR2-667 ram?
     
    markeyp, Mar 15, 2006
    #5
  6. Silk

    Silk Newbie

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    The Sony OEM modules in mine are Micron. I got better Everest memory read/ write scores using ddr2-533 modules plus they are cheaper.
     
    Silk, Mar 15, 2006
    #6