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BCLK Tuning on i5 6600 non-K : help needed


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Hi Everyone,



I tried to perform a BCLK OC on my ASUS Z170-K @ i5 6600 non-K by following steps proposed on overclocking guide for ASUS Z170-K (with little adjustments):


– Set Boot Performance Mode to Turbo Performance

– Set Intel® SpeedStep to Disabled

– Set CPU C states to Disabled

– Set CPU Loadline Calibration to Level 7

– Set Ai Overclock Tuner to Manual

– Change the BCLK Frequency to 122 (approx : 4.4 GHz OC)

– Adjust the DRAM Frequency to a value around 2100 MHz

Set the CPU Core Voltage Override to 1.35



But when I save the settings and reboot, nothing happens. when rebooting again, a "FAILED OVERCLOCKING" message appears :( , tried to adjust the CPU Core Voltage Override and/or DRAM Frequency but nothing worked.


My build is:


- ASUS Z170-K (Bios Version: .2003)

- i5 6600e @ 3.3GHz

- 2 X 8 Go GSkill DDR4 @ 2133 MHz (seen on Bios) or 1069MHz (seen on Speccy software) --> not sure about the RAM Frequency :confused:

- GPU: GTX 970

- Win 7 integral edition



Could my issue be linked to my BIOS version (as the one recommended in OC guide is the .0602)? If so, is it safe to flash BIOS to an older version (.2003 --> .602)?

Or could this be linked the DRAM Frequency?


Many thanks in advance for you help! :)

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