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X399 video card slot

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hanamichy View Drop Down
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    Posted: 19 Aug 2017 at 6:18am
Hi,

I have a Radeo HD 5970. It says it's a PCI Express 2.0 x16.

Can I install this in slot PCIE4 of the x399 Taichi?
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parsec View Drop Down
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Post Options Post Options   Thanks (1) Thanks(1)   Quote parsec Quote  Post ReplyReply Direct Link To This Post Posted: 19 Aug 2017 at 11:24am
Originally posted by hanamichy hanamichy wrote:

Hi,

I have a Radeo HD 5970. It says it's a PCI Express 2.0 x16.

Can I install this in slot PCIE4 of the x399 Taichi?


I assume you are asking because Threadripper processors provide PCIe 3.0 lanes, not PCIe 2.0.

PCIe 3.0 is backward compatible with all the earlier PCIe versions, so you can use your video card in the PCIe 3.0 x 16 PCIE4 slot.

The UEFI/BIOS may have an option to set the PCIe version from PCIe 3.0 (Gen3) to PCIe 2.0 (Gen2) in future versions, although I don't see those options in the manual now.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote hanamichy Quote  Post ReplyReply Direct Link To This Post Posted: 22 Aug 2017 at 4:16am
Thank you!
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