ASRock Z87M OC Formula User Manual - Page 78
Intel Turbo Boost Technology, Long Duration Power Limit
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BCLK Ratio Configure BCLK Ratio to prevent the PC from crashing when the internal CPU clock speed and clock speed of other components are too high. BLCK Spread Spectrum Enable BLCK Spread Spectrum to reduce electromagnetic interference for passing EMI tests. Disable to achieve higher clock speeds when overclocking. PCIE Spread Spectrum Enable PCIE Spread Spectrum to reduce electromagnetic interference for passing EMI tests. Disable to achieve higher clock speeds when overclocking. Intel SpeedStep Technology Intel SpeedStep technology allows processors to switch between multiple frequencies and voltage points for better power saving and heat dissipation. Intel Turbo Boost Technology Intel Turbo Boost Technology enables the processor to run above its base operating frequency when the operating system requests the highest performance state. Filter PLL Frequency CPU BCLK Filter Frequency. Choose 1.6 for better overclocking capabilities. Internal PLL Overvoltage Enable for better stability when overclocking. PCIE PLL Selection Select SB PLL when overclocking. Long Duration Power Limit Configure Package Power Limit 1 in watts. When the limit is exceeded, the CPU ratio will be lowered after a period of time. A lower limit can protect the CPU and save power, while a higher limit may improve performance. Long Duration Maintained Configure the period of time until the CPU ratio is lowered when the Long Duration Power Limit is exceeded. Short Duration Power Limit 72 English