I recently bought a new graphics card and psu for my computer. I got a cx500 corsair psu which
i installed and it worked no problem. Then when i try to install the new graphics card ( diamond radeon hd 6770) as soon as i plug the six pin power from psu to card , my computer wont turn on. The graphics card fan spins and the lights on mobo turn on but monitors are blank. When i restart the computer disconnecting the power from psu to card the computer turns on no problem. If anyone can help that would be greatly appreciated my next step i guess would be to try and return card. since i have no other computer to test the card on. Let me know if i missed any step and bear with me my comp. knowledge is limited thanks.