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Computer Hardware Terms, Glossary and Dictionary
Multiplier lock The multiplier lock is a feature built into a CPU chip that prevents it from being overclocked. It is used by CPU manufacturers to prevent consumers and dealers from overclocking the CPU. When locked, the multiplier--the factor by which the bus speed is multiplied to derive the CPU speed--is stuck at one given value, thus ruling out any overclocking on motherboards strictly built to the CPU manufacturers specifications. The lock is hard wired into the CPU and is very difficult to overcome.
Related Terms
Multiplier lock
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