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Is DDR2 RAM Memory backward compatible with DDR memory?

April 26, 2017backward compatible DDR DDR2 memory RAM

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Is DDR2 RAM Memory backward compatible with DDR memory?

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No. DDR2 memory chips and modules are very different from DDR. For example, DDR2 runs at a lower voltage (1.8V) than DDR (2.5V). The notch on DDR2 DIMMs is in a different position than DDR DIMMs. DDR2 is a 240-pin module, DDR is a 184-pin module. Notebooks have 200-pin modules for DDR and DDR2.