Dimension 5150 specs

i have a dimension 5150 computer, for the most part its stock, i only have a new video card but i am curious to know what the specs are on it, like what sound card it comes with, what mother board it has stuff like that if anyone knows off the top of their head that would be great or if anyone knows a website where i can find it that would be helpfull to, ive looked at dell.com and that didnt really help to much...