ax1200 a bit much unless he has extra $$ laying around...got my 1000w seasonic plat. for 200 and it can handle 6990,5870,5850 no problem
I found my PSU's +12V supplies 20A. Does it make sense that 480 W (2 x (12V x 20A)) would be my theoretical maximum?
Note: The PSU is 6 years old.
Oh yea, sounds like a really weak PSU. Just get a proper one and you should be good. Proper ones include seasonic, corsair, etc high-end ones. For future expansion needs I would get ax1200 right away.