Dual processor PCI lane allocation

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michaelmalak

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Sep 10, 2007
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In general, do dual-processor motherboards utilize all the PCIe lanes from both processors? If so, are the processor PCIe lanes allocated to particular PCIe slots hard-wired or dynamically?
 
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It will most likely vary from manufacturer to manufacturer, but most multi-socket LGA2011 boards source their PCIe lanes from each microprocessor evenly.

For example, the Asus Z9PE-D16 has 6 full width (16x) PCIe slots, 3 from CPU 1 (8/16/16) and 3 from CPU 2 (16/16/8)
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Pinhedd

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Aug 7, 2007
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It will most likely vary from manufacturer to manufacturer, but most multi-socket LGA2011 boards source their PCIe lanes from each microprocessor evenly.

For example, the Asus Z9PE-D16 has 6 full width (16x) PCIe slots, 3 from CPU 1 (8/16/16) and 3 from CPU 2 (16/16/8)
 
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