Amd radeon hd 6870

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Well of course cooler master calculator is going to suggest you one of their branded PSU's lol however i highly suggest you don't even consider that hunk of junk i wouldn't put it in one of my rigs even if i got it free i would take it straight out to my trash can seriously! Tier 4 - Not Recommend for stressful situations. May not be able to put out full rated power above room temperature, and may slightly fail to meet ATX specs. http://www.eggxpert.com/forums/thread/323050.aspx
Your system doesn't use anywhere near 525w.

The psu will be fine for that video card. However if the card (you didn't mention which brand or model) needs 2x6pin pci-e connector you'll need to use the molex to pci-e adaptor that comes with the card for the second pci-e connection.

You'll need 2 free molex connectors for the adaptor.
 
Well of course cooler master calculator is going to suggest you one of their branded PSU's lol however i highly suggest you don't even consider that hunk of junk i wouldn't put it in one of my rigs even if i got it free i would take it straight out to my trash can seriously! Tier 4 - Not Recommend for stressful situations. May not be able to put out full rated power above room temperature, and may slightly fail to meet ATX specs. http://www.eggxpert.com/forums/thread/323050.aspx
 
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