Oc Tweaker Screen - ASROCK Z87iCafe4 User Manual

4.3 OC Tweaker Screen

In the OC Tweaker screen, you can set up overclocking features.
Because the UEFI software is constantly being updated, the following UEFI setup
screens and descriptions are for reference purpose only, and they may not exactly
match what you see on your screen.
CPU Configuration
CPU Ratio
The CPU speed is determined by the CPU Ratio multiplied with the BCLK.
Increasing the CPU Ratio will increase the internal CPU clock speed without
affecting the clock speed of other components.
CPU Cache Ratio
The CPU Internal Bus Speed Ratio. The maximum should be the same as the CPU
Ratio.
BCLK/PCIE Frequency
The CPU speed is determined by the CPU Ratio multiplied with the BCLK.
Increasing the BCLK will increase the internal CPU clock speed but also affect the
clock speed of other components.
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