You misunderstood. This is about resale of base components. Go to ebay and look up 2-3 generations old Intel chips - super cheap from China. With this you wont find cheap AMD parts since they will be locked to Lenovo motherboards.
This is not correct.
The locks does happen on the CPU level. If the board cannot provide a BIOS with a valid signature from the key that was burned into the CPU, the CPU will refuse to boot (PSB prevents it from booting)
Ah, you're right, I was reading the suggestions section of TFA as a the system works like this not that it would be nice if it worked liked this. My bad!
