@Scott, on the top of the computer, toward the front, it should have a Dell service tag. If you see it, can you reply back with it. I can look it up on Dell's support site and tell you precisely what model you have. If you don't see the service tag then:
<windows key> + r -> cmd <enter key> -> systeminfo <enter key>
The steps above will display a verbose message. Within all that information is the 7 digit alpha-numeric code