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While I'm sure a destructive lunatic could force a DDR module into an older slot, they are not designed to be physically compatible. DDR modules have only a single notch, while SDR modules and slots are keyed with two notches and ridges.

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15y ago

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Can you DDR SDRAM in an SDR SDRAM slot?

No.


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No. SDR SDRAM and DDR SDRAM modules are not interchangeable.


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