can my computer support the directex and crossfire feature if i upgrade to a 650 power supply. from ati radeon 5970
http://h10025.www1.hp.com/ewfrf/wc/document?
docname=c01961291&cc=us&dlc=en&lc=en&jumpid=reg_R1002_USENhttp
http://h10025.www1.hp.com/ewfrf/wc/document?
docname=c01961291&cc=us&dlc=en&lc=en&jumpid=reg_R1002_USENhttp