Do I really need 30 Amps for my X1900xt?

[W2hCYK]

They recommend 30a on the 12v line, and the PSU I'm planning on getting is a 700 watt OCZ GameXStream with +3.3@36A,+5V@30A,+12V1@18A,+12V2@18A,+12V3@18A,+12 V4@18A,-12V@0.8A,+5VSB@3.0A

Now, do I need to get a PSU with 30a on a 12v line? or with the 4 track 12v system, will 18 be enough if I dedicate 1 rail to the card?

[WarEagleAU]

No, that PSU is great and great for what you need it for. You will be more than fine.

[JC316]

Tatty One just explained this to me. You count all of the 12V Amps, that one has 72 amps total, you will be fine.

[Chewy]

here you can look at this one I was going to get it has the same volts and amps on 4 rails, it is sli/cf ready so you could run 2 cards on it.

I think you should have about the same amps in total 56 when combined, I think you got 72 max amps but 56 constant safe use amps :S, so tatty is right on your max amps. got 29 constant amps (not sure if thats how to put it) and 36max on my psu.

http://www.thermaltakeusa.com/product/Power/ToughPower/W0106/w0106.asp