"unintentional function" here means the partial hardware function that is not supported by the system,for example,"tesla dvi" and "integrated SAS/SATA controller". Tesla is the gpgpu part,so it's intentional,but if video function is disabled in the firmware,then video part is unintentional. Also the "integrated SAS/SATA controller",only SATA drives are shipped with system,so SATA is intentional but SAS is unintentional. Policy should cover the partial unintentional hardware function.