Unfortunately, there is no such thing as a computer made with 100% American parts. There are too many different computer components distributed across thousands of suppliers, made all over the world. It would be hard for a company to even tell you what exact percent of their computer is American made.

But there are some companies that do make computers in American factories, and staff their support lines with Americans. My hunch is that they would have higher percentages of parts made in the USA.

This site is a good resource for computer companies that build in the usa:
[link to www.computersmadeinusa.com]