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    abourt ram speed

    Discussion in 'Acer' started by metalroses, Nov 15, 2011.

  1. metalroses

    metalroses Notebook Consultant

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    is it okay to use two different types of ram? example one 333mhz and another 667 mhz? can i use both ? will affect the computer?
     
    metalroses, Nov 15, 2011
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  2. downloads

    downloads No, Dee Dee, no! Super Moderator

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    That's technically impossible.
    333MHz was DDR while 667MHz is DDR2.
    What is more likely is that it's actual the same type of memory but since it's DDR (dual data rate) the actual frequency is doubled hence 333x2=667MHz

    (It can't equal 666 for obvious non-mathematical reasons).

    So if both sticks fit the slot that means both are at least 667MHz DDR2.
     
    downloads, Nov 15, 2011
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  3. metalroses

    metalroses Notebook Consultant

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    ok thanks i looked up again mine theyre ddr2 5300s-555-12, but with CPU ID says:
    Memory type DDR2
    Module format SO-DIMM
    Manufacturer (ID) Samsung (CE00000000000000)
    Size 2048 MBytes
    Max bandwidth PC2-5300 (333 MHz)
     
    metalroses, Nov 15, 2011
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  4. downloads

    downloads No, Dee Dee, no! Super Moderator

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    That's DDR2 667MHz. The I/O clock is 333MHz but since it's double data rate the data rate is twice that- 667MHz.
    So in essence you have two sticks of DDR2 667MHz RAM
     
    downloads, Nov 15, 2011
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  5. metalroses

    metalroses Notebook Consultant

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    ohhhh okay now i understand thanks for the help! :)
     
    metalroses, Nov 15, 2011
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