Coreboot

http://www.loper-os.org/

It so happens that AMD resisted the informal NSA ban on the manufacture of http://www.coreboot.org   LinuxBIOS-capable x86 CPUs slightly longer than Intel did. Or perhaps they were simply slower to succumb to Microsoft’s Fritz chip decree. Whichever may be the case, vintage (pre-2011, with some caveats, inquire within) AMD Opteron motherboards are a precious and increasingly scarce non-renewable resource.

Fritz chip
https://ubuntuforums.org/archive/index.php/t-1020851.html%3e%3b How can I tell if my computer has the Fritz chip?

I've only recently heard about this thing and I'm a little concerned:

http://www.cl.cam.ac.uk/~rja14/tcpa-faq.html

The preferred implementation in the first phase of TC emphasised the role of a `Fritz' chip - a smartcard chip or dongle soldered to the motherboard. The current version has five components - the Fritz chip, a `curtained memory' feature in the CPU, a security kernel in the operating system (the `Nexus' in Microsoft language), a security kernel in each TC application (the `NCA' in Microsoft-speak) and a back-end infrastructure of online security servers maintained by hardware and software vendors to tie the whole thing together....

Once the machine is in an approved state, with a TC app loaded and shielded from interference by any other software, Fritz will certify this to third parties. For example, he will do an authentication protocol with Disney to prove that his machine is a suitable recipient of `Snow White'. This will mean certifying that the PC is currently running an authorised application program - MediaPlayer, DisneyPlayer, whatever - with its NCA properly loaded and shielded by curtained memory against debuggers or other tools that could be used to rip the content. The Disney server then sends encrypted data, with a key that Fritz will use to unseal it.....

http://btcbase.org/log-search?q=fritz

http://www.loper-os.org/?p=1299