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How many PCI-E lanes will be used?

In the future, I plan on upgrading to a X99 build, or whatever the future equivalent of it is.

How do I calculate how many PCI-E lanes will be used?

Let's just say I have:
- 2 x M.2 SSD
- 2 x 7200 RPM SATA3 HDD
- 4 x 5400 RPM SATA3 HDD
- 2 x GPU in SLI/CrossFire

Is there anything else that uses PCI-E lanes? Optical drives? Wireless adapters?
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    Electrolyzed said:
    In the future, I plan on upgrading to a X99 build, or whatever the future equivalent of it is.

    How do I calculate how many PCI-E lanes will be used?

    Let's just say I have:
    - 2 x M.2 SSD
    - 2 x 7200 RPM SATA3 HDD
    - 4 x 5400 RPM SATA3 HDD
    - 2 x GPU in SLI/CrossFire

    Is there anything else that uses PCI-E lanes? Optical drives? Wireless adapters?


    Hi,

    Intel's LGA-2011 CPUs have 40 PCIe lanes each (with the exception of the i7-5820k which is limited to 28 for marketing reasons). These lanes are organized as two 16x ports and an 8x port. The two 16x ports can be split four ways into four 4x ports, and the 8x port can be split two ways into a pair of 4x ports. This allows the CPU to expose up to ten PCIe ports. The PCH has an additional 8x port which can be split eight ways into eight 1x ports which are ideal for low bandwidth peripherals.

    You'll need to consult the motherboard manual to determine the slot to port relationship. Some motherboards use PCIe switches to expose multiple slots that are connected to the same root port.
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