My new nvidia gt630 is not working

hello,
i have intel dg31pr motherboard.i recently purchased nvidia 630gt 2gb ddr3.when i start the pc the display doesn't work.i tried other graphic card also nvidia 8800 gt had the same problem,only my old graphic card 8600gt works properly. plzz help me,i dont understand the problem.
system specs : intel core 2 duo e7200 @ 2.53 ghz,2gb ram,550 w psu
5 answers Last reply
More about nvidia gt630 working
  1. maybe a defective pcie connection? can you check on another mobo?
  2. if the connection is defected then my old card i.e 8600 gt should also not work right?? and i didnt try those cards on other pc's yet
  3. if the connection is defected then my old card i.e 8600 gt should also not work right?? and i didnt try those cards on other pc's yet
  4. but my old card is working totally fine...so i dont think its the defective connection's problem
  5. maybe the card is defective?
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