This happens, i dont think this is classified specific.
I have had this problem on my asus p6t-deluxe, evga x58 SLI and evga classified.
when first turn the PC and boot into windows there is no network adapter at all. If i reboot without changing a thing they're back and I can work normally.
I'm at pci-e 110 and I've no problems on that 2nd reboot
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