its upcoming build
i have
ryzen 7 1700
corsair VI hero motherboard
1080 ti maybe 2
16 gb ddr4 ram
and thats it i think
and price under 100 or just a littlebit over [/quote
msg]
According to this:
http://www.realhardtechx.com/index_archivos/Page362.htm
a single 1080ti needs a 600 watt PSU and 1080tis in SLI need 850 watts.
Really an SLI setup is IMHO more trouble than it is worth. Its twice the GPU expense, twice the generated heat, and twice the complications to get it set up for less than twice the performance(in some games SLI performance is worse than using a single card!) support for SLI in games is waning as manufacturers aren't seeing the volume needed to justify the development costs.
Here is a list of PSUs that might fit your needs:
https://pcpartpicker.com/products/power-supply/#X=0,10032&m=337,11,14,71,441,39&W=600,850&t=2&R=5