Multiplier stuck at 35 for this stock on i5-6600k with extra power-saving settings.
Multiplier stuck at 35 for this stock on i5-6600k with extra power-saving settings.
Hello!
I’m currently working on increasing the clock speed of my i5-6600k using an Asus Z170 Pro Gaming motherboard. I’m using a Hyper 212X for air cooling and a decent case fan, but those details don’t affect my main concerns.
For overclocking, I turn off all UEFI tools that automatically adjust voltages and frequencies. My first problem is with the clock multiplier. The default value is 35, and when I change it in the UEFI, the system updates the "targeted frequency" to something like 4000 MHz. The Vcore also functions properly.
However, when I check hardware monitoring software on Windows, the Vcore matches what I set in the UEFI, but the multiplier remains stuck at 35, resulting in a frequency of 3500 MHz (or 39 MHz if Turbo Boost is enabled). I’ve tried other values such as 40 or 45 with Turbo Boost off, and CPU-Z shows the correct range (8 to 45), but the actual multiplier doesn’t change.
Could you help me understand what might be causing this?
My second question concerns power-saving features like Asus EPU, Intel Turbo Boost, and CPU SVID support. I’m certain I should disable all of them during overclocking to avoid instability issues. Should I re-enable them once I’m confident the system is stable, in order to minimize heat, power use, fan noise, and extend component life?
Thank you ahead of time for your assistance. I’m a beginner, so any advice would be greatly appreciated!
I would adjust all settings, starting with voltage at the default, then increase the multiplier for each core to your preferred value like 40 and test. Keep an eye on cpu-Z. You’ll notice the multiplier hits 40 and vcore stays below 1.4. Once you hit your goal, lower it slightly and use adaptive voltage and speedstep. This will lower the multiplier and vcore when workload is light. Windows power options should support running the CPU between 20% and 100%.
As of 12/04/2016
What percentage might succeed an overclock at a reasonable 1.40v Vcore?
I5-6600K
4.9 14%
4.8 38%
4.7 67%
4.6 87%
I would adjust all settings, starting with voltage set to the default, then increase the multiplier for each core to your preferred value like 40 and test. Keep an eye on cpu-Z. You’ll notice your multiplier at 40 and vcore below 1.4. Once you hit your goal, lower it slightly and use adaptive voltage and speedstep. This will lower the multiplier and vcore when workload is minimal. Windows power options should support running the CPU between 20% and 100%.
As of 12/04/2016
What percentage might succeed an overclock at a reasonable 1.40v Vcore?
I5-6600K
4.9 14%
4.8 38%
4.7 67%
4.6 87%
I would configure all settings, starting with voltage at the default level. Then, increase the multiplier for each core to your preferred value, such as 40, and test. Keep an eye on the CPU-Z monitor. You should observe the multiplier reaching 40 and the vcore staying below 1.4. Once you hit your goal, reduce it slightly and apply adaptive voltage and speedstep. This will lower the multiplier and vcore when workload is minimal. Windows power settings should support running the CPU between 20% and 100%.
As of 12/04/2016
What percentage could achieve an overclock with a reasonable 1.40v Vcore?
I5-6600K
4.9 14%
4.8 38%
4.7 67%
4.6 87%
Thanks a lot for your help.
It turns out I was mistaken about Intel Turbo Boost; this feature was actually necessary to reach the desired overclock. I’ll start testing!