What is the difference between 4GB 1Rx8 PC3L and 4GB 2Rx8 PC3L RAM? - Quora
Solved: RAM for laptop - HP Support Community - 7355494
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Beware of the single rank x16 RAM kits sneaked in some laptop models! The 1Rx16 modules have significantly lower bandwidth compared to the 1Rx8 variants - NotebookCheck.net News