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Hey guys i was wondering if i can use this psu for my two Radeon HD ATI cards? or would you recommend something better for crossfire?

My first question is what Radeon HD Cards do you have? Two 5770's compared to two 5970's are two different animals. You don't need a 1200 Watt PSU to power those cards unless its something like two 5970's and then a ton of hard drives and fans. My personal recommendation is to stick to Corsair AX (or the older HX line) or Seasonic power supplies.

Any of these should work but let us know which cards your using to Xfire or if you have something that would justify using a 1200 Watt PSU. A PSU typically likes operating around a 50%-75% load for maximum efficiency.

1) Seasonic X750 http://www.newegg.com/Product/Product.aspx?Item=N82E16817151087&cm_re=seasonic_750w-_-17-151-087-_-Product
2) Corsair AX750 http://www.newegg.com/Product/Product.aspx?Item=N82E16817139016&cm_re=corsair_ax-_-17-139-016-_-Product
3) Corsair HX750 http://www.newegg.com/Product/Product.aspx?Item=N82E16817139010&cm_re=corsair_hx-_-17-139-010-_-Product

Like I said depending on price, and what your actually going to Xfire should make a big difference in the PSU you need.

Okay first off thank you very much mmmmmdonuts21 for answering my question. You asked what cards i have it listed below and along with the PSU that i currently have. If the PSU that i have can work please let me know. Thanks again.

1.(2)Sapphire ATI Radeon HD 1g (HD5870) : http://www.newegg.com/Product/Product.a ... -_-Product
2. Corsair 750TX: http://www.newegg.com/Product/Product.a ... 6817139006

You should not be experiencing over 500 Watts unless you have two heavily overclocked GPU's and a heavily overclocked CPU. http://techreport.com/articles.x/17618/15

Just out of curiosity, are you already running two 5870's in Xfire or are you planning on doing it or is your PSU giving you problems? Your Corsair 750TX is a very good power supply and you definitely should have no issues running it.

Hey mmmmmdonuts21 thanks again. I'm not currently running both ATI cards yet..plan on doing so soon and also my PSU i not giving me any problems just wanted to make sure i have enough power. So you are saying i should be good to go with crossfire with the cards and PSU that i have?

Pharmtech78 wrote:

Okay first off thank you very much mmmmmdonuts21 for answering my question. You asked what cards i have it listed below and along with the PSU that i currently have. If the PSU that i have can work please let me know. Thanks again.

1.(2)Sapphire ATI Radeon HD 1g (HD5870) : http://www.newegg.com/Product/Product.a ... -_-Product
2. Corsair 750TX: http://www.newegg.com/Product/Product.a ... 6817139006

You should be all set. The PSU has enough amps on the 12V rails and it also has the pre-requisite of the 4xPCIe 6-pin power connectors.

Hey Flying Fox and mmmmmdonuts21 thank you so much for all your help. You guys were very helpful. So I'll go for it.