Intermittent instability observed, voltage levels dropping below configured values.
Intermittent instability observed, voltage levels dropping below configured values.
In short, I boosted my i7 6700k to 4.5ghz but it’s fluctuating around 4.44ghz and then jumps to 4.48ghz. I set the Vcore to 1.280v for safety. But during stress tests, the voltage drops to 1.214 and 1.235, causing instability. Also, I’m using a gigabyte gaming 7 Z170. Thanks!
I adjusted the Loadline Calibration to high, which fixed the voltage drop issue. The clock remains unstable, oscillating between 4.44ghz and 4.48ghz, and I’m hoping it will settle at 4.5ghz. Any suggestions?
Your instability may stem from voltage drop when operating under load.
In the Advanced Power settings, you can adjust LLC or load line calibration.
Choose a value ranging from Auto to manual, increasing it to high. MBs display it in percentage, while others show a number or switch between standard, high, or extreme levels. Start with High but avoid excessive values.
Hey, thanks for the help! When I hit a stable OC, what should I do to make it downclock during idle? Before I change the mode, I thought setting it to "normal" and adjusting the offset might work, assuming normal gives enough voltage. If not, I could tweak the offset depending on the available voltage.
Reckoner_:
Thanks for the answers! When I hit a stable OC, how do I make it downclock during idle? Before I change it, the only option was to set it to "normal" and adjust an offset, assuming normal gives enough voltage. If that doesn’t work, I can tweak the offset based on available voltage.
If you want the CPU to downclock at idle, Intel’s Turbo Boost Technology is suitable.
As someone who prefers power management, I usually keep this disabled and use voltage offsets mainly for higher OCs. Also, turn off Sleep states C1E since it’s a power-saving feature—it might affect stability. You can reactivate it later if you’re energy-conscious.
Reckoner_:
Are you running your CPU at a fixed voltage?
I usually don’t set CPU voltages automatically.
4.3875V on the core appears to be ideal for stability at 4.6GHz.
Keep it below 1.4V for better longevity.
This depends on your cooling system and chip quality.
Increase frequency in 1GHz increments, testing voltage and stress after each change.
Once stable at your target speed, lower the core voltage until instability occurs.
Then raise it back up to achieve stability, which is your maximum OC for the cooler you choose.