Today I had to replace the memory module in Toshiba Satellite 1905 notebook. This notebook has 2 memory slots. One memory slot is located on the bottom of the notebook and you can access it pretty easy. The second slot is located under the keyboard and you have to remove the notebook keyboard before you can remove, replace or upgrade the memory module. By default the memory stick is installed under the keyboard. Be very careful with the keyboard securing strip, it is very fragile and seated in place very tightly.
What memory should I use for upgrading my notebook computer? How to choose the right memory type and size?