If you cannot find these options, a bugged BIOS firmware might be causing the heat.
If you completed all steps and your Dynabook is still too hot to touch, the BIOS was never the villain. Perform these physical maintenance tasks: toshiba dynabook bios hot
Is the machine overheating or is it just physically hot to the touch ? If you cannot find these options, a bugged
: Opens the One-Time Boot Menu , allowing you to choose a startup device (like a USB drive) without permanently changing BIOS settings. If you cannot find these options