Toshiba Satellite 1905 has 2 memory slots available for upgrades. One memory slot is located on the bottom and the second one is under the keyboard. This laptop will accept up to 1GB (total memory size in both slots). I believe the original memory module (under the keyboard) is PC2100. Most likely you also can use PC2700 and it will clock down to PC2100 speed. It is not necessary to install the same memory size into the second slot; you can use 256MB or 512MB.
6/25/06 at 1:38am