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2.1 PCI-E GPU with a 3.0 PCI-E MOBO?

Last response: in Graphics & Displays
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April 13, 2012 4:31:34 PM

Hi, I've recently decided to build my own gaming pc, but decided on going a bit budget with it. Regardless, I narrowed down a good starter GPU for what I needed, to be the Radeon HD 6850, which has PCI-E 2.1 port.

Initially, as for the motherboard, I had a decent AM3+ MoBo that had a 2.0 PCI-E slot. The problem was that I was keen on using the Intel Core i3-2100 PCU, which as you probably know, doesn't fit with an AM3+ MoBo. So, after figuring that out, I decided to go with a LGA 1155 Mobo to work with the PCU. But! This board says it sports a 3.0 PCI-E port.

So, do I need to get a new GPU to fit the Mobo, or a new Mobo to fit the GPU?

Links to Items and Specs below :

GPU - http://www.newegg.com/Product/Product.aspx?Item=N82E168...

PCU - http://www.newegg.com/Product/Product.aspx?Item=N82E168...

MOBO - http://www.newegg.com/Product/Product.aspx?Item=N82E168...

More about : pci gpu pci mobo

April 13, 2012 4:37:55 PM

it supports 3.0 but it is not necessary that the video card is 3.0 any 2.0 video card will work normally on the 3.0 slot no need changing anything.
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April 13, 2012 5:41:43 PM

The motherboard with a pci-e 3.0 slot would be a good one to get so that later on you can upgrade the cpu to an Ivy Bridge cpu that supports it and a video card that also supports it , because you need all three to be Pci-e 3.0 rated so you can get the benefit of that technology. Untill then the slot is backward compatable to any video card that is Pci-e 2.0 , 2.1 and so on. In the link that you provided if you look under the expansion slots it tells you that it works with both Ivy Bridge 3.0 and Sandy Bridge 2.0 cpu's.
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