Need PSU help

[shaus]

Hi,

I currently have an AMD X4800 with this RAIDMAX AURORA RX-580F 580W power supply:
http://www.newegg.com/Product/Product.aspx?Item=N82E16817152022

I have this HIS Radeon X1900XTX 512MB video card:
http://www.newegg.com/Product/Product.aspx?Item=N82E16814161169

I can get this Sapphire Viper Radeon HD 5870 video card for $35.
http://www.newegg.com/Product/Product.aspx?Item=N82E16814102872

Can I use it with my rig? Do I need adapters? If so which ones? I just want a little bump in performance. I don't want to upgrade anythign else. I am open to suggestions for the highest performing video card my rig can handle.

Thanks,

Scott

 

[Dark Lord of Tech]

Here's what happens to Raidmax power supplies.
http://www.youtube.com/watch?v=Ezk9OA7aKOE