Advice on Mining

Hi IV been seeing alot about bitcoin mining and how to do it .

My current rig is is my only set up and I use that most of the time.

PC spec:

MSI M5 mobo

i7 6700k

16gb ram

H100i cooler intake air set up

GTX 1080

Evga 1000 PSU

Corsair C70 case

Thinking of adding in another card just for mining , what would be the best ROI and wouldn't break the bank of like £150/£200 , also I don't pay for electrical bill.

Submitted August 29, 2017 at 10:03AM by Jt0909 http://bit.ly/2xt2RHO