Completed my upgrade so now i have inside...

i7 7700
Z270 strix gaming mb
16GB Corsair Ram 2x 8GB
GTX 1070 Founders Edition
480Gb SSD ( sata )
2tb Hybrid HDD (C:)
3x 1tb Hitatchi HDD
Liteon Blu Ray Burner..
Powered by corsair 850 modular.

ok thing is now with the sata devices connected one of the hdd and the bd burner are not showing 6 devices 6 connections but only 4 devices showing.

Any ideas?