Hi

Can you please tell us which notebook model do you have and which RAM module you have bought?
You must understand that on this virtual way it is not easy to say much about your issue.
Fact is that modules for upgrade must be compatible with hardware platform of your notebook.

This forum is full of different but similar reports where people have such problems.
Mostly the problem was RAM itself. Looking for cheap solution people buy some no-name product and not high quality products. The "Value" RAM Modules use a lot of cheap chips utilizing multiple banks/channels, which can cause compatibility problems with some Chipsets/CPU's.

I think you are right, but I wanted to put the question out there anyway. Thanks for that.

I didn't know that Toshiba only have certain module manufacturers that work in their units, so I will replace the module with exactly the same as I have now which is a 1GB Samsung DDR2 module.

Everyone else say's Kingston or Toshiba, but my module is Samsung.....

Appreciate the help.