Systems restarts while gaming - - asus anti surge

[rochsolid84]

Hi I am confused if my psu has enough power. It sometimes restarts when gaming. It has an corsair 750 watt psu gold plus 6 months old. A asus mother board skylake cpu 4.0 ghz 16 gb ram dvd and 2 ssd. And one gtx1080 ti and one firepro 5100 gpus. Do you think I need an bigger psu? rochsolid84

 

[rochsolid84]

Maybe a 1 kw psu helps?