New longterm project

[Cryptozillah]

I am moving to a apartment with free electricity in the next coming weeks.
So i am about to build a small rig (six cards) to run the next coming years.

I have been away from mining for a year now but still have a shitload of components from my earlier mining projects, except from gpus.

Right now it seem like the Asus 1080Ti Strix is the card i will use in this rig.

Anyone know how much power this card draw trough the pci-e slot ?
I am thinking about using my old powered risers.

Setup:
Asrock H81
Celeron G1840
Powered USB risers
6 x 1080Ti
2 x Silverstone Strider 1100w psu:s
Alu frame