Gtx 260 power

Hi , I just built my computer and have everything running , but the only problem is when I unplug the power of the graphics card , I have a display , everything runs perfectly. The moment I shut off the computer and plug in the 2 6 pins for the gtx 260 and try to power my computer , nothing. I have no display whatsoever :(
but the graphics cards fan is running. I have a 550 watt power supply , that seems fine please help
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  1. Mine linking to the exact psu?

    What else are you running on the system?

    Would you post your exact system specs
  2. Motherboard - GIGABYTE GA-MA74GM-S2 AM2+/AM2 AMD 740G Micro ATX AMD Motherboard
    heres link - http://www.newegg.com/Product/Product.aspx?Item=N82E16813128342

    CPU - AMD Athlon 64 X2 7750 Kuma 2.7GHz Socket AM2+ 95W Dual-Core black edition Processor Model
    link - http://www.newegg.com/Product/Product.aspx?Item=N82E16819103300

    Ram- G.SKILL 4GB (2 x 2GB) 240-Pin DDR2 SDRAM DDR2 1066 (PC2 8500) Dual Channel Kit Desktop Memory
    link - http://www.newegg.com/Product/Product.aspx?Item=N82E16820231166

    and power supply

    Rosewill RP550-2 550W ATX12V v2.01 Power Supply
    link - http://www.newegg.com/Product/Product.aspx?Item=N82E16817182017
  3. Well considering it can power a 4870 which uses more power then a 260...you should be fine

    Albeit if you haven't bought the psu yet you should do as i did and spend the extra $ on the corsair 550w

    I spent around 20$ more after rebate and i had seriously been eyeing that rosewill due to it being such a low price...meh i went with corsair for the peace of mind

    Unfortunately it was DOA and iv sent it back...anyways yeah you should be fine with the rosewill...nice build btw

    How much will you have in your build after tax/shipping?
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