Hi all I just purchased this GPU http://www.newegg.com/Product/Product.aspx?Item=N82E16814202095&cm_re=r9_280x-_-14-202-095-_-Product after my R9 280x from XFX died and was wondering if my PSU http://www.newegg.com/Product/Product.aspx?Item=N82E16817151095&cm_re=seasonic_620w-_-17-151-095-_-Product will be able to power it along with a 4670k @3.7GHz a few HDDs and case fans