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    XPS 1640 strange SPD values

    Discussion in 'Dell XPS and Studio XPS' started by tatarus, Jan 10, 2010.

  1. tatarus

    tatarus Notebook Guru

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    The Ram provided with the 1640 should be 1066MHz DDR3 Ram. My Samsung Ram seems to support 1333MHz also due to the JEDEC SPD description.

    Max Bandwidth should be 533MHz but JEDEC #3 says 609MHz.

    Did Samsung just label 1333MHz modules as 1066MHz?
     

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    tatarus, Jan 10, 2010
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  2. moral hazard

    moral hazard Notebook Nobel Laureate

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    Looks like it.

    FYI, thaiphoon burner can flash the ram EEPROM to change the SPD.
    Unless you have WP enabled.

    BTW you can google the part number on the actual ram chips themselves and see what they are rated for.
     
    moral hazard, Jan 10, 2010
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  3. tatarus

    tatarus Notebook Guru

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    The ram chips say K4B1G0846E-HCF8. Those are DDR3 1066MHz CL7 modules. Seems that they can run higher speeds with CL8. So everything is labeled correctly.
     
    tatarus, Jan 10, 2010
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