Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Didn't work well.

I needed to upgrade my ram. I found these online at a good price. After putting them in, my computer ran slower and the picture froze and stuttered. I called the tech support line and they didn't have a fix. I put my old memory back in, and the computer worked fine. I have since bought more ram from somewhere else and it works fine.