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    failed ram upgrade

    Discussion in 'Hardware Components and Aftermarket Upgrades' started by mintyfresh94, Feb 9, 2009.

  1. mintyfresh94

    mintyfresh94 Notebook Enthusiast

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    hey guys i recently tried to upgrade my laptops ram and found the correct model and size and blah blah blah. but when i popped the 2 sticks of ram it wont boot. Any suggestions?

    i am running acer 4720z and know that it supports up to 4gb so why wont it work? i bought a PC2 5300 667MHZ DDR2 Sodimm which was what i was told to get
     
    mintyfresh94, Feb 9, 2009
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  2. mintyfresh94

    mintyfresh94 Notebook Enthusiast

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    pleasse help
     
    mintyfresh94, Feb 9, 2009
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  3. sgogeta4

    sgogeta4 Notebook Nobel Laureate

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    Try one at a time. If one fails to boot then you have a defective stick.
     
    sgogeta4, Feb 9, 2009
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  4. PhoenixFx

    PhoenixFx Notebook Virtuoso

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    According to Acer 4720z spec your have an Intel GL960 chipset which supports 533MHz RAM only up to 2GB (2x1GB). Intel datasheet for 96x mobile chipsets also notes the maximum supported memory size for GL960 as 2GB. That could be the problem. However, sometimes people have managed to go beyond manufacturer recommended limitations. Since I don't have experience with GL960 chipset I can't say whether 4GB will work or not.

    P.S : 667MHz is backward compatible with 533MHz, therefore RAM speed is not the problem.
     
    PhoenixFx, Feb 9, 2009
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  5. Greg

    Greg Notebook Nobel Laureate

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    Yup, the GL960 chipset only supports up to 2GB of RAM. Depending on the BIOS, the notebook may or may not boot with more than 2GB installed, but if it does boot with more than 4GB you will not have access to more than 2GB anyway.
     
    Greg, Feb 9, 2009
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