How to ‘Disable PCI class 0xff board detection’？ Simulink Real-Time BIOS Setting Requirement by Mathworks

In the requirement of BIOS setting for Simulink Realtime, need to 'Disable PCI class 0xff board detection'.

How could we do it ? I can't find this option in BIOS setting in several Computers.

From Matlab Simulink Real Time help:

Disable PCI class 0xff board detection — Do not detect PCI boards with class code 0xff in the target computer BIOS. Turn this option Off to enable the BIOS to detect and configure PCI boards.

Thanks very much for your help.