This is Enduro enabled system.
Dell Precision M6800
Intel Core i7 4810MQ
8Gb DDR3L 1600 (2x4)
Intel HD4600 + AMD FirePro M6100
eGPU Setup 1.30
EXP GDC v6 + EC cable
PSU: Dell D220P
Gainward GTX 760 Phantom
3 GPUs installed.
iGPU + dGPU + eGPU combination was almost plug and play, as long as eGPU was plugged in after system booted and was in standby. Simple driver installation, safely remove eGPU, restart and plug it in again and we had GTX 760 powering external monitor at PCIe x1.2 s