Question Upgrade a Toshiba Satellite L755

Jan 14, 2022
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Hi Im new here,sorry if this is stupid upfront. I have a Toshiba Satellite Laptop L755-S5244. Part Number PSK1WU-05L004. Serial Number 7B302391W. Im actually looking to upgrade the RAM. The Dynabook/Toshiba website does not recognize the Part Number or Serial Number. Where do I go next?