0DGP4X YMMV blue orange is led red yellow shorted to black is power on if red yellow is not shorted bios will show error [URL] [IMAGE] [IMAGE] [IMAGE][IMAGE] [IMAGE]  
I want to add a 3rd party power switch to the xps. Does anyone have the pinout for the motherboard?   [IMAGE]   connector?
XPS 8940, power switch pinout?