Based on the foregoing, an indicative order of overclocking of the Core i3/5/7 based system may be the following:
- Set the optimal BIOS settings for your system. Turn off the Spread Spectrum parameter, energy saving technologies Intel SpeedStep and C1 E Support and also the Intel Turbo Boost technology.
- Set a minimal multiplying ratio for memory by using the “System Memory Multiplier” parameter or similar to it. In most motherboards the lowest possible multiplier is 6 which represents the value of 800 MHz in normal mode. The “DRAM Frequency” parameter is used in motherboards by ASUS for this purpose; the value must be DDR3-800 MHz.
- After the preparation is finished, you can start increasing the basic frequency with the help of the “BCLK Frequecy” parameter or similar to it. You can start with the frequency of 160-170 MHz, and then increase it step by step by 180-220 MHz.
- In case of a fault, you can decrease a little a basic frequency to return the system in its operating mode and carefully test it for stability. If you want to get from your processor everything possible, you can try to increase the power supply voltage by 0,1-0,3 W (up to 1,4-1,5 W), but then you must take care of more effective cooling. In some cases, it is possible to increase the overclockability of your system with the help of voltage increasing of QPI bus and L-3 cache memory (Uncore), memory or phase-locked loop frequency control system (CPU PLL).
- After the frequency on which your processor can operate for a long time without any fault and heating has been determined, you may select optimal parameters of operating memory and other components.