Is my psu strong enough for my setup. ?

[backstabbin]

So my setup consist of

5820k
Asus rampage v extreme
Gtx 1080 strix sli
850 Samsung ssd
1b hdd

Razer kraken 7.1
Razed naga
Razed orbweaver
Razerblack widow

My psu is hx1000i

I'm having thoughts my psu is not strong enough my mouse game pad turns off randomly I don't get 100% gpu usage

 

[Dark Lord of Tech]

More than enough , high quality power.

Fantastic PSU , made by SEASONIC.

It's not your PSU.