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    Toshiba DDR Memory Upgrade Questions

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by allfiredup, Dec 1, 2007.

  1. allfiredup

    allfiredup Notebook Virtuoso

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    I have a Toshiba Satellite M45-S265 which currently has 1x512MB Samsung DDR333 PC2700 memory module. I want to increase it to 1GB (2x512MB modules) and have a few questions.

    Can I simply buy one additional 512MB module (of any quality brand name, with same exact tech specs) and add it to the existing 512MB module? Or do I need to purchase two identical modules from the same maker?

    The current memory is DDR-333/PC2700. If I can find a better deal on DDR-400/PC3200, am I correct in understanding it is "backwards compatible" and would simply run at the slower speed of the DDR-333?

    Help is appreciated as this is my first laptop memory upgrade. I'm giving it to my nephew as one of his Christmas gifts and want to give it a "tune-up" first. Thanks again!
     
    allfiredup, Dec 1, 2007
    #1
  2. adinu

    adinu I pwn teh n00bs.

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    Yes you can add another 512mb stick and it will work fine. If you buy a ddr400 stick, it will just downclock to match the existing ddr333 stick.
     
    adinu, Dec 2, 2007
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  3. K-TRON

    K-TRON Hi, I'm Jimmy Diesel ^_^

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    Yes Pc 3200 will work in your system. You could probably buy a 1Gb Pc3200 card cheap, so that you have 1.5Gb of memory.

    K-TRON
     
    K-TRON, Dec 2, 2007
    #3
  4. allfiredup

    allfiredup Notebook Virtuoso

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    Great, thanks! I didn't realize that you could mix different amounts (1GB and 512MB) as long as they're the same type and speed.
     
    allfiredup, Dec 2, 2007
    #4
  5. powerpack

    powerpack Notebook Prophet

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    You can mix size and even speed of RAM it does sometimes cause a slight "Memory Bandwidth" hit, but more RAM should improve the overall performance.
     
    powerpack, Dec 2, 2007
    #5