Recently I have bought Gigabyte HD 6850 graphic card and before that I was using ATI HD 4650 graphic card and it was working fine. Now when connected Gigabyte HD 6850 with my computer at that time my computer does not start. I have removed Gigabyte HD 6850 graphic card from my computer and then connected it again but after connecting Gigabyte HD 6850 graphic card with my computer also same problem was occurring. I have also downloaded latest BIOS file for my motherboard and then I have updated the BIOS but that does not help me to solve this problem. After searching solution on internet I have come to know that my 300W power supply is not providing enough power and because of that this problem is occurring. please let me know which power supply I should use to make my graphic card properly with my PC?
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