I just built a new computer gigabyte gtx 1070 g1 and I7 6700. And currently am using my old psu Silverstone SST-ST70F ESB Strider 700W I think it might be this one http://www.tomshardware.com/reviews/power-supply-review,2043-10.html . I am also building my old parts into a pc Fx 8320 Asus M5A97 R2.0 and a GV-R929OC-4GD . My question is without spending to much money should I use my this(current) psu in the parts rig or buy a even cheaper one and keep it in my new rig?