crwdns2934241:0crwdne2934241:0 krisfuqua

crwdns2934249:0crwdne2934249:0:

There are indicator lights built onto the motherboard that will light up to show you what parts are getting power.  Here is a post that should help you.

https://www.ifixit.com/Answers/View/126233/Where+are+the+diagnostic+led's+on+this+model's+logic+board

crwdns2915684:0crwdne2915684:0:

open