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/Produc...82E16817152022

I have this HIS Radeon X1900XTX 512MB video card:​

http://www.newegg.com/Product/Produc...82E16814161169

I can get this Sapphire Viper Radeon HD 5870 video card for $35.​

http://www.newegg.com/Product/Produc...82E16814102872

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​

 

[Shmee]

Moved to PSU forum.

 

[deerslayer]

I'm not positive, but I don't think that PSU is going to have enough amps on the 12v rail for that card. Even if it did, I don't think I would trust it.