6700k wont OC past 4200mhz
6700k wont OC past 4200mhz
I recently assembled my first gaming PC and decided to attempt overclocking the CPU (i7 6700k). I watched several YouTube tutorials and gained a clear understanding of the process. However, after trying it, my computer kept restarting and I had to press the CMOS reset button. I adjusted various settings but the issue persisted. I gave up for a while but then discovered the ASUS Ai Suite 3. I attempted overclocking through that software, but it couldn’t reach the 4200mhz turbo boost setting. I’m unsure what went wrong, as I’m new to this and no one else seems to have encountered the same problem. It might be a simple mistake, but I’d appreciate any advice or support.
Hi ANDR3WS
There is a way to modify your CPU using OC tools, but AISuite 3 isn't one of them. While there are appealing functions, avoid relying on it for this purpose. Actual OC should be handled through your BIOS settings.
Reset the CMOS to its default state and perform a stress test with AIDA64 using stock configurations. This helps set a baseline for checking temperatures, voltages, and stability. Keep in mind that not all chips respond equally (Intel Lottery), so understanding your BIOS is crucial.
After achieving stability at stock levels, proceed to tune and adjust for better performance—higher OC levels will require more fine-tuning to maintain consistency.
Download AIDA64 and HWMonitor, placing them together on your desktop.
Execute a CPU and FPU test in AIDA64 for 10 minutes at stock settings, capturing screenshots at the 10-minute mark and beyond.
There is a way to overclock your CPU, but AISuite 3 isn't one of them. It has some appealing features, but avoid using it for OC purposes. The actual overclocking should be handled within your BIOS.
Reset the CMOS to its default state and perform a stress test with AIDA64 using stock configurations. This helps set a baseline for checking temperatures, voltages, and stability. Since not all chips respond equally (Intel Lottery), knowing your BIOS model is crucial.
Once stable at stock settings, proceed to tune and adjust for better performance—higher overclocks require more fine-tuning to keep things stable.
Save AIDA64 and HWMonitor on your desktop and run a CPU and FPU test in AIDA64 for 10 minutes at stock speed. Capture screenshots at the 10-minute mark and share them here for review.
Based on your results, I can assist you in reaching the maximum possible OC for your I7-6700K.
Remember to update your BIOS to the latest version (1902) if unsure—details will be provided for the safest approach.
AI Suite 3 offers a helpful overview, but it isn't the best choice for long-term use according to MM's notes. I prefer AI Suite as an initial step.
In AI Suite, you typically adjust three sliders: start point (whether it begins OC from stock speeds or uses AI estimates), target max temp, and target max voltage. To understand what AI Suite suggests, you should tweak these settings. You can allow it to begin OC at stock speeds if that suits you. If your desired max temp or voltage is too low, a utility won't be very effective—generally, the standard voltage divided by the standard temperature gives a reasonable estimate.
However, I've encountered issues with bugs in AI Suite sometimes. If it fails to work properly or doesn't actually start OC, switch to the BIOS immediately.
My advice is to wait until AI Suite provides useful guidance. Once you have that, remove the OC settings from there and apply those values in your BIOS. Then gradually lower the voltage while keeping the OC stable—utilities add extra voltages that aren't needed.
Once you achieve stable operation at a certain OC with minimal voltage, increase the multiplier and voltage as needed, ensuring they stay within safe limits and maintain consistent OCs.
As a note, I've noticed ASUS boards can be more sensitive to CPU cache settings compared to your multiplier, which may lead to unstable OCs or reboot loops. Make sure your CPU cache multiplier stays close to 0.4–0.5GHz relative to the CPU multiplier for stability.
ANDR3WS and thank you for that.
Attempting a 4.6GHz overclock should be feasible with a decent chip.
Go to the Extreme Tweaker Menu, find the 1-Core Ratio Limit and set it to 46 for a 4.6GHz boost.
Move to the CPU Core/Cache Voltage setting and switch it from Auto to Manual.
A new option for CPU Core Voltage Override will show; input a starting value of 1.35.
Press F10 to open a summary window with all changes. Confirm with OK and reboot if everything matches your setup.
If the system doesn’t boot or load the OS, return to BIOS and gradually increase the core voltage in 0.01V increments until stable.
Once at 4.6GHz with 1.35V, lower the core voltage by 0.01V step by step until you reach a steady state.
Avoid exceeding 1.4V on the core. When stable, we can proceed to adaptive mode and fine-tune LLC (Load Line Calibration) to avoid voltage drops.
I followed your advice and it started up as expected, though it kept displaying 4000 MHz in all programs. I want to return to BIOS, choose XMP and sync all cores, set it to 4500, and then reboot. I must have clicked yes when the popup appeared after selecting XMP, but now overclocking is active and temperatures seem high.
The recent statistics at 4.6GHz with temperatures around 80°C seem encouraging. Slightly elevated temperatures are acceptable.
Create a profile using these parameters, then lower the core voltage by 0.01V until stability is achieved.
Also consider making several additional adjustments.
Return to the CPU Core/Cache Voltage setting and switch it from Manual to Adaptive Mode.
You'll notice more options now; the one you should focus on is Additional Turbo Mode CPU Core Voltage. Enter the voltage your CPU needs at 4.6GHz.
To provide a buffer for overclocking, raise the borderline voltage slightly—add a small margin if the minimum required is 1.35V.
Go to External DIGI+ power control > LLC and set it to level 8.
Press F10 to apply these changes. Monitor the results and thermals closely.
Previous tests were synthetic and intense, but under normal load conditions at 80°C they shouldn’t reach temperatures.
A solid final check would be using "Realbench," a real-world stress test from ASUS. Successfully completing this benchmark confirms stability.
A final reminder: your thermal performance also relies on room temperature and fan settings. I have saved profiles for Summer and Winter, since my environment can hit 32°C, so I opt for a lower frequency profile accordingly.
I followed your advice and the temperatures went down into the low 90s, so I lowered the LLC to level 5 (not sure if that's acceptable).