Problem with Overclocking Intel Core i7 6700K
Problem with Overclocking Intel Core i7 6700K
I attempted to push the overclock of a liquid-cooled I7 6700K on an MSI Z170A Krait gaming X3, using the latest BIOS. I adjusted the settings as follows:
OC Explore Mode: expert mode
CPU Ratio Apply Mode: all core
CPU Ratio: 46
CPU Ratio mode: Dynamic Mode / Fixed Mode
Ring Ratio: Auto
EIST: Enabled / Disabled
Intel Turbo Boost: Enabled / Disabled
CPU Core Voltage: 1.35v / 1.40v
I also tried turning off Intel Adaptive Thermal Monitor and Intel C-State.
I used Linx, prime 95, IBT, and applied all the settings, but the results remained consistent: after a few minutes the multiplier drops to 44 and the frequency falls to 4400MHz, then the test continues at this lower setting.
The temperatures stayed within acceptable ranges.
Do you think this unusual behavior is typical or indicates an issue?
You're experiencing instability when lowering the frequency from 4.5GHz to 4.4GHz, which then further drops to 4.0GHz. This suggests a potential issue with the system's performance or stability at those lower frequencies.
I have increased all limits to their maximum values from the "cpu Futures" section, which has improved stability. However, I still notice continuous drops in the multiplier (the frequency fluctuates rather than settling at 4200 fixed).
I am observing these warnings alongside frequency drops: IA: VR Thermal Alert and RING: VR Thermal Alert on Yes.
It seems the issue might be related to the temperature of the motherboard VRM or something built into the processor.
I have some questions:
1) What exactly is it? (Could this be the cause?)
2) Apart from reducing the vcore and adding a fan to the VRMs, are there other BIOS settings I can adjust (such as lowering other frequencies or voltages besides the vcore)?
(The case is a large tower with two 140 inlet fans, one 120 in extraction on the back and three 120 in extraction on the radiator at the top of the case.)