There might be regulatory concerns for wireless cards, but it seems to affect LCD panels and a few other things. It's probably intended to make sure institution

There might be regulatory concerns for wireless cards, but it seems to affect LCD panels and a few other things. It's probably intended to make sure institutional IT departments don't mix parts between models so as to create a configuration Lenovo hasn't tested that might potentially have problems. Of course, I consider it a problem when I put in hardware I want to use and the computer thinks it knows better. I have a hacked BIOS on my T61/T60p hybrid for exactly that reason.