Pc Keeps Freezing After Changing To New Graphics Card

i have just change hard drives and installed fresh my windows 7 disk onto it and i have changed my graphics card but the thing is my computer keeps freezing.
i have tried moving ram into different slots tried my os on different hard drive tried using my old gpu and also before i was able to download the drivers without a problem but now trying to download them it freezes before i get a chance
2 answers Last reply
More about freezing changing graphics card
  1. What was your old GPU, and what is your new?
  2. Take out the new graphics card and try it again. If it does not freeze the problem is with the card.
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