How Do I Set Adaptive Voltage
How Do I Set Adaptive Voltage
I achieved a stable overclock of my i7 4790k with an Asus Maximus VII Hero at 4.6 GHZ and 1.23 V in manual mode. I then adjusted the power-saving configurations in the BIOS, experimenting with different voltages and offsets to find suitable settings. However, some attempts failed due to incorrect core voltage values or system responses. I explored using Intel XTU as an alternative but encountered similar issues. It seems this behavior might be related to Haswell power management features, and there may not be a straightforward solution to fully implement adaptive voltage control.
I adjusted it to be adaptive with an offset of -0.06 V, which raised the maximum to 2.3 V instead of 2.9 V before. Now even under the Intel XTU stress test it stays below 1.23 V!! Thanks a lot for all the assistance Skyler.
I only modified the CPU multiplier, enabled XMP for my DRAM, and set the CPU voltage to adaptive with the known value for my overclock.
Any other changes besides those?
It's best to adjust the voltage manually during overclocking. Otherwise, your system might become unstable (as you've noticed). The adaptive voltage adjustment isn't really designed for overclocking. In fact, it should be turned off first to achieve better overclocks, because sometimes it raises the voltage too much, generating heat and shortening the CPU's lifespan.
It's best to adjust the voltage manually during overclocking. Otherwise, your system might become unstable (as you've seen). The adaptive voltage adjustment isn't really designed for overclocking. In fact, it should be turned off first to achieve better overclocks, because sometimes it raises the voltage too much, generating heat and shortening the CPU's lifespan.
Stress testing with adaptive voltage isn't advisable. Tests like Prime95 and AIDA64 (beyond these two) will raise the voltage beyond the BIOS settings (typically 0.1-0.2 volts).
If you aim to push the CPU further after overclocking with adaptive voltage, I suggest using ASUS Realbench.
The download link is located directly under the title.
Realbench also provides a clear picture of the gains achieved through overclocking.
For adjusting the adaptive voltage:
Move down to CPU core voltage. Turn off full manual mode and switch to adaptive mode.
Adjust additional turbo mode CPU core voltage to the value that maintained stability in manual mode (in your case 1.23 volts).
No offset adjustment is required.
It's best to adjust the voltage manually during overclocking. Otherwise, your system might become unstable (as you've noticed). The adaptive voltage feature isn't designed for overclocking. In fact, it should be turned off initially to achieve better overclocks, because it can sometimes raise the voltage too high, generating excess heat and shortening the CPU's lifespan. With adaptive voltage, the voltage stays within the BIOS limits only during specific stress tests like Prime95 and AIDA64. For everyday tasks such as video encoding or image editing, the voltage remains within the BIOS-specified range.
SkylerJacobs:
For adjusting the adaptive voltage:
Scroll down to CPU core voltage. Turn off full manual mode and switch to adaptive mode.
Adjust the additional turbo mode CPU core voltage to the value that kept it stable in manual mode (in your case 1.23 volts). Don’t need to add an offset.
When I changed the adaptive voltage via BIOS and restarted, it functioned correctly with a voltage around 1.07. However, when I opened Windows, the voltage jumped to about 1.29. I also tried using Intel XTU and the same issue occurred.
SkylerJacobs explains the situation, noting the unexpected increase. They ask about the voltage monitoring and the stress test method, mentioning they only used Intel XTU for testing. They clarify they didn't perform a full stress test but used it when the voltage was set to manual to achieve stability.