Buying a New PSU and a GPU for a Retail bought PC

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TeamKennedy

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Sep 7, 2012
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So I am going to be ordering a 480W power supply and a HD 7770 for a computer I bought about 2 years ago (i3-2100, 6gb of ram, 64bit Home Premium. etc.) So I was wondering if there will be an issue using a PCI-Express 3.0 card in a PCI- Express 2.0 slot. I've read online that it should work fine, but I"m not 100% sure. Thanks in advance.
 
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lxxjordan23xxl
Yeah, PCI-e 3.0 cards are backwards-compatible with 2.0 and 1.0 slots. You get slightly less performance(very slightly) with a 2.0 slot though but it will work regardless. (I'm using an HD 7750 in a 2.0 slot)
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lxxjordan23xxl

lxxjordan23xxl

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Jul 6, 2012
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Yeah, PCI-e 3.0 cards are backwards-compatible with 2.0 and 1.0 slots. You get slightly less performance(very slightly) with a 2.0 slot though but it will work regardless. (I'm using an HD 7750 in a 2.0 slot)
 
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