Which 550w would you suggestNot for an RX590. If it was a better 550w psu you'd likely be ok, but I wouldn't power a rx 590 with a VS.
https://www.newegg.com/antec-neoeco-550-gold-ne550g-550w/p/N82E16817371121?Item=N82E16817371121&nm_mc=AFC-RAN-COM&cm_mmc=AFC-RAN-COM&utm_medium=affiliates&utm_source=afc-PCPartPicker&AFFID=2558510&AFFNAME=PCPartPicker&ACRID=1&ASID=https://pcpartpicker.com/product/f2qhP6/antec-neoeco-gold-550-w-80-gold-certified-semi-modular-atx-power-supply-ne550g&ranMID=44583&ranEAID=2558510&ranSiteID=8BacdVP0GFs-LrPpHOGDFFGKf_XReDnfwA
Best buy at the minute, absolute solid quality