How can I tell what 2011/2011-3 socket CPUs have 40pcie lane support?

Solution
If cpu number is i7-
x8xx, it has 28 lanes
x9xx, it has 40 lanes

(Note: Valid up until Haswell-E. Later series may come to differ from this.)

Intel has a great site for detailed information on all their processors, http://ark.intel.com/. E-series (like Haswell-E) are listed under "Intel® High End Desktop Processors".

Gillerer

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Sep 23, 2013
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If cpu number is i7-
x8xx, it has 28 lanes
x9xx, it has 40 lanes

(Note: Valid up until Haswell-E. Later series may come to differ from this.)

Intel has a great site for detailed information on all their processors, http://ark.intel.com/. E-series (like Haswell-E) are listed under "Intel® High End Desktop Processors".
 
Solution