CPU PCIe lanes and motherboards

rarzer

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Jan 20, 2015
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Newbie question here.

I've seen some of the newest Intel i7 Broadwell-E cpu's ranging from 40 to 28 PCIe lanes.

Yet, looking at Asus x99-e ws motherboard I've found these configurations:

40-Lane CPU-
7 x PCIe 3.0/2.0 x16 (single x16 or dual x16/x16 or triple x16/x16/x16 or quad x16/x16/x16/x16 or seven x16/x8/x8/x8/x8/x8/x8)

28-Lane CPU-
7 x PCIe 3.0/2.0 x16 (single x16 or dual x16/x16 or triple x16/x16/x16 or quad x16/x16/x16/x16 or seven x16/x8/x8/x8/x8/x8/x8)



Does this mean you can use more PCIe lanes with this motherboard than your CPU actually have or what? I find this quite confusing.

Thanks in advance!



 

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