This website: http://outervision.com/b/nzaauA says I need a 500W power supply so can someone recommend me one? I'm looking for a good quality one with a decent warranty. My current one is a corsair CX750m but it is causing bad micro stuttering (I have tested another identical card and one that consumes less power and the one that consumes less power had no issues so it is definitely the power supply) so I need a new one.