It does not recognize the ram memory that is installed.

[Outsmarted X(]

I have a Toshiba Satellite 1805-s207. My hard drive died about a week ago and so I bought a new one to replace it. It works fine. (there is no operating system on the computer now)I also bought 512mb ram memory for the computer as well because I wanted to upgrade it to vista. I have been trying to install vista but it always stops me and says that I only have 240mb ram memory and I know it is in the memory slots. I don't know how to get the computer to recognize the additional ram memory that is installed. I have no way to get into the computer control panel. Help please!

[Balamani]

There can be issue with the incompatible hardware in your system. Whenever you upgrade your system it is important that you must first check the compatibility status. The manual or technical specification on the official website can guide you for that. You laptop does not supports more than 521MB of ram. Remove the old one and the put the only new one. Your ram specification is PC100/133 SDRAM SODIMMs.