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What power supply should I get for the 7770?

I am very bad at this stuff. I'm going to upgrade my PC soon. Current specs: i3 3220 and 2GB RAM.
I'm planning on getting the 7770 and increasing my RAM to 4gb or maybe 8gb if i have more money left. and also upgrading to Windows 64-bit so that I can use more than 3.5gb xD

I can't buy anything in my country so I'll be using ebay. Actually, I can buy them here but too expensive. The 7770 is over $250 here :/

I've heard that Corsair is the best brand when it comes to this stuff.
Will this work? http://www.ebay.com/itm/CORSAIR-Builder-Series-CX500-500W-ATX12V-v2-3-80-PLUS-BRONZE-PC-Power-Supply-/331090387799?pt=PCA_UPS&hash=item4d16866357

I also have a feeling that I might need to change the motherboard... I don't know the name of this motherboard. It's Acer. It has a PCI-e 16x(i think thats the name haha) thing for the graphics card. I'm not using that computer right now so I can't check.

My budget for the power supply is around $100
6 answers Last reply Best Answer
More about power supply 7770
  1. Yes the 500 is more then enough for your build corsair that is..
  2. johnnyb105 said:
    Yes the 500 is more then enough for your build corsair that is..

    Okay. but in the amd website, it says "500W (or greater) power supply with one 75W 6-pin PCI Express power connector recommended7" I have no idea what 75W 6-pin PCI Express power connector is(LoL), but is that in this power supply?
  3. Best answer
    Yes they are included I am running a entire system on a corsair 500 watt PS AND I AM running dual 7770 in crossfire so all is good.
  4. http://www.newegg.com/Product/Product.aspx?Item=N82E16817139027


    also read this..

    1 x Main connector (20+4Pin)
    1 x 4+4 Pin EPS 12V
    2 x PCI-E
    5 x SATA
    4 x Peripheral
    1 x Floppy

    2 x 6+2-Pin
  5. johnnyb105 said:
    http://www.newegg.com/Product/Product.aspx?Item=N82E16817139027


    also read this..

    1 x Main connector (20+4Pin)
    1 x 4+4 Pin EPS 12V
    2 x PCI-E
    5 x SATA
    4 x Peripheral
    1 x Floppy

    2 x 6+2-Pin



    Thank you :) Will I need a different motherboard? The one I have now has a pcie x16(not sure if thats the name...) which is blue.
  6. Your board will work fine for the card pci x 16 2.0 example will work
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