look under assignee...its intel corp...
System for detecting over-clocking uses a reference signal thereafter preventing over-clocking by reducing clock rate
Abstract
An over-clock deterrent mechanism of a chipset which comprises an over-clock detection circuit for detecting over-clocking of a system (processor) clock signal based on comparison of ratio of the system (processor) clock signal which is likely to be over-clocked and a fixed, stable reference clock signal which is highly unlikely to be over-clocked, and an over-clock prevention (thwarting) circuit for deterring such an over-clocking by either disabling operations of a computer system or significantly undermining key operations of a computer system.
Inventors: Poisner; David L. (Folsom, CA)
Assignee: Intel Corporation (Santa Clara, CA)
Appl. No.: 407853
Filed: September 29, 1999
there's a discussion over it here
http://www.geek.com/news/geeknews/2003Mar/...30326019296.htmIntel has just stamped their own doomsday.
This post has been edited by SnoWFisH: Jan 7 2006, 04:09 PM