i5 6600k + Hyper 212x Stable OC
i5 6600k + Hyper 212x Stable OC
I'm using an i5 6600k at 4.2 Ghz with 1.15 voltage. I adjusted the multiplier to 42 and set CPU Core/Cache Voltage to Manual, then changed CPU Core Voltage Override to 1.150. This is my first attempt at overclocking, so please let me know if I made any mistakes.
I was stable at 4.2 and anything higher would cause crashes.
Temperature was 35°C at idle and 70°C under load (intel burn test).
Could you explain the typical stock voltage for this chip and suggest more overclocking limits?
Please share safe voltage and frequency values.
It shows the VID fluctuating between 1.23 and 1.3v... is that the intended motherboard voltage?
Also, my motherboard is an Asus z170 Pro Gaming.
You may attempt to turn off certain features: intel turbo boost technology (prevent more than one core from boosting to higher frequencies, which can lead to stability problems with all cores identical to the ratio you specified 42x100blck =4200mhz). C-states and EIST / speedstep should also be disabled. Removing these options will cause the CPU to run continuously at 4200mhz, resulting in reduced frequency during idle periods. CPU spread spectrum is enabled by default.
Another adjustment involves reducing the cache frequency. For optimal performance, a balanced 1:1 cache-to-CPU ratio is ideal, though a slight decrease in frequency is acceptable (around 1000mhz lower). For instance, with a 42 CPU ratio and a 40 cache min/max ratio, this works well. Lower the frequency when fine-tuning the CPU ratio, and once stability is confirmed, you can make further adjustments.
Regarding voltage changes, this relates to "Load line calibration or LLC" in your BIOS. Higher settings increase voltage during load. It’s advisable to select a setting that maintains similar CPU voltage under stress compared to the values in your BIOS. Common options include Levels or Turbo modes. Choose a setting that matches your needs and provides comparable voltage in the operating system.
If you’ve set the CPU voltage to 1.150v but observe readings between 1.23–1.300v during load (using tools like cpu-z), the LLC setting is likely too high. If you experience temperatures of 85°C on any core under heavy workloads such as AIDA64 Prime95, consider lowering the voltage or increasing fan speed. Prime95 typically produces slightly higher temperatures than Aida64.
A voltage below 1.400v is acceptable with adequate cooling, but if you’re already at 70°C under stress, it’s better to keep the voltage lower (stay under 1.400v in the OS). Start by adjusting the LLC setting until the voltage aligns more closely with your target value.
I'm observing core voltage between 1.152V and 1.184V... Previously, I received 1.3V VID voltage instead of core voltage. The LLC is automatically configured. How can I optimize the LLC settings for best performance? Also, during gaming and streaming at 50°C-52°C with full utilization, it only reached 70°C after an Intel Burn Test.