[Guide] Dell XPS 15 9550 (Skylake, GTX960M, SSD) via Clover UEFI

Overview
The XPS 15 9550 is a Skylake Laptop with decent Hardware for running a Hackintosh without too much fiddling.
Details of the system: http://www.dell.com/us/p/xps-15-9550-laptop/pd?oc=dncwx1631h&model_id=xps-15-9550-laptop

Please keep the discussion as close to El Capitan as possible. For Sierra specific questions please check the Sierra subforum

All of the info here is based on the brains of
- rehabman
- tdmsn
- reece394
- pikeralpha
- goodwin_c
and...

[Guide] Dell XPS 15 9550 (Skylake, GTX960M, SSD) via Clover UEFI