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I have a Pavillion Gaming Notebook with an HP motherboard 80A9 v 91.1D.  I would like tio upgrade the memory and need to confirm presence of 2 memory slots supporting a max of 16 Gb of RAM ( 8 Gb X 2).  I also am unsure of the designation "v 91.1D".  does this refer to the voltage of the RAM (1.35 VS 1.5 V?)  .  Would appreciate a confirmation.  Thank you

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How to Find Your HP Laptop Model Number (Video) | HP® Tech Takes

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