Problem: Need to know what motherboard I have for Kakewalk

Request:
- Please provide hints as to where I can find it!

MY MACHINE:
Dell XPS 8100 3.2GHz Core i5-650
Service Tag: HDF-SNL1
Built around 2/25/2010

Stuff I Tried:
- Dell.com
- Dell Support Center app on the PC running Win7
- the goog
- this forum
- Quantum Thinking (just kidding)

Questions:
- If I just open up the machine, will it be on there somewhere?

Thanks for reading!