COLGeek

Cybernaut
Moderator
shovenose is right. The 2900s have very demanding power needs and going with a lesser solution will definitely result in a future failure. They also ran very hot, so you need to make sure you have sufficient airflow before proceeding. Good luck!
 

Moe747

Distinguished
Jun 23, 2010
17
0
18,510
How about this :http://www.newegg.ca/Product/Product.aspx?Item=N82E16817371016

It's an Antec 550W Continuous power supply that's also modular and it's +12V rails are as follow: 12V1:22A 12V2:22A 12V3:25A. It has 1 6-pin Pci-e connector and 1 6+2 Pci-e connector. Perfect for the 2900XT. Would this do good? Would I also have the ability to overclock?
 

COLGeek

Cybernaut
Moderator
The PSU should be fine, but you are on the edge of performance. OCing may be possible if you have good airflow and can keep the overall system cool. The 2900s made for great space heaters during the winter (just kidding), but they do produce a lot of heat.