Radeon 5870 eyefinity 6 help w/power supply

Alright I have a desktop I built that has a 750w power supply. I currently have one

SAPPHIRE 100290SR Radeon HD 5870 (Cypress XT) 2GB


but need 4 more screens so I was going to get another one. However, it says you need a 900w power supply if you are doing crossfire in dual mode but in order to get 12 screens you dont connect these two together in crossfire mode. So I was wondering would I still need a 900w power supply even if I dont crossfire them but instead have them act on their own? I currently have 6 screens but need 4 more. If I cant use this card, are there any other ways to achieve this? Thank you very much.
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More about radeon 5870 eyefinity power supply
  1. anyone?

    * Bump posts,

  2. Well, on the newegg.com website under the details for the 5870, it says it need 900w for 2 of these cards in dual mode under the system requirements. This is an eyefinity 6 so I'm not sure if that is different from the normal 5870 as well. I only have a 750w power supply so that is why I am wondering before I buy another one. Thanks.

    Here is the link;


    P.S. Sorry about the bump, wont do it again, will just edit.
  3. The power supply is

    CORSAIR CMPSU-750TX 750W ATX12V v2.2 SLI Certified CrossFire Ready 80 PLUS Certified Active PFC Compatible with Core i7 Power Supply


    It is currently $109 but I am not sure if that is cheap for 750w. That is great that I should be able to run it on a 750w psu. If you don't mind just confirming that this particular psu is decent then I will go ahead and buy the card and a few more monitors. Thanks again so much for your help ct.
  4. Best answer selected by melcor.
  5. Thanks a bunch. I can now buy the card without worrying about if it will work or not.
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