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Hey guys can I update my (hp is 5 to 6 years old) laptop ram which is(2gig ddr3 pc3l to (8gig)ddr3

This is not how you ask a situation-specific technical question. Without telling us what laptop you have, what current RAM you have, it is impossible to know. You can upload a picture of the laptop model, the RAM slot and the existing RAM stick with label on it to let people know.