A feature built into a CPU chip that prevents it from being overclocked (run at a higher speed). See overclock and CPU multiplier.
"multiplier lock." YourDictionary, n.d. Web. 16 August 2018. <http://www.yourdictionary.com/multiplier-lock>.
multiplier lock. (n.d.). Retrieved August 16th, 2018, from http://www.yourdictionary.com/multiplier-lock