PSU : 200W
I am going to buy 2 asus rog strix gtx 1080 ti OC will it work on my built ?
Do I need to modify or completely upgrade to a new system ?
Also can I go with 1 gtx titan volta instead of 2 asus strix gtx 1080 ti oc ?
PSU 200W is precious little even for one of two asus rog strix gtx 1080 (250W each) you are going to buy. You need 600W minimum, better 800W (to pull peak ratings) or your power block will cut one with a smoke.