So I found this pdf today that has a TON of information on the motherboards that I thought would be useful for others. I'm sure its post somewhere else like on sev7nsins or xecuter, etc... But I find that having this around is a GREAT IDEA!
Source: https://thingiverse-production-new.s3.amazonaws.com/assets/bf/9f/44/73/28/Xbox_360-HandC-V1_4.pdf
Xbox_360-HandC-V1_4.pdf