I had an issue I raised in this post. Apparently there are ACPI fan control scripts that can control temperature through fan control. I can't access the real website that contains the scripts but I can see the cache. here. I can't go to this original website, http://www.thinkwiki.org/wiki/How_to_control_fan_speed Maybe more thoughtful control. Is it possible for malware to utilize a fan control script, for laptops of course, as detection prevention? By executing a fan control script when it detects a scan in progress causing a thermal shutdown.