I had the exact same problem, as a work around I installed a Broadcom dual port NIC and used those instead. the system booted properly but noticed that the Intel nics were still active on the hardware list, also the cpu was flat at 26 % all the time. I decided to disable the onboard Intel Nics on the bios and the CPU usage dropped to 0%.
So I Think we can safely say that the Onboard Intel Nics are the culprit of this problem.