Thank you, lets hope 6 will work on it, planning to add a 6th card?
No
Many reasons why. The simple reason is I prefer slot mining over riser mining.
My five card build uses 575 watts and is really compact.
I can use a evga 750 watt p2 psu.
Simply no need to run six cards.
I posted more photos on the other thread.
The 6th card would prove that the Z270 can run it, the Z270 has few extra lanes more than Z170, the Z170 cant run 6 or more gpu's.