But be aware that some upgrades aren't worth it. Example. During last black friday I snapped up a 4GB dual core Intel 15.6 inch laptop for $129.99. It was faster than an old 630.
I am trying to upgrade a Dell Latitude D630 Laptop, it has 2GB of RAM already installed (under the keyboard) the slot on the back is empty, so I thought I would put another RAM stick and boost the RAM. I purchased a couple of 1GB RAM sticks from a dealer on ebay who stated the RAM was not new, but had been tested as working fine. I have put both these RAM sticks in (separately of course) lol, but nothing seems to have changed, the system still says there is 2GB of memory. what am I doing wrong? Please help.