Asrock Z370 Extreme4 high voltage options for minimal OC on i7 8700k
Asrock Z370 Extreme4 high voltage options for minimal OC on i7 8700k
Hey everyone, just installed a new PC featuring the Asrock Z370 Extreme4 motherboard and an i7 8700k processor paired with a Noctua DH-15 cooler. Since I previously owned an MSI G43-Z87 motherboard with an i5 4670k, I was used to adjusting voltages during overclocking. With this new setup, the core voltage under load is typically between 1.344 and 1.376V, and at 4.3GHz it's around 1.16V with turbo enabled. I’m wondering if there’s a way to lower the voltage without relying on fixed settings. Any suggestions would be greatly appreciated.
This overclocking discussion is about adjusting your motherboard's settings for better performance. The same tips apply to the 8700K as well. As mentioned by huntlong, you can manually increase the vcore slightly while keeping it low enough (under 1.26v) to significantly improve temperatures on the 8700K. He also notes that the Offset mode is available at just 20mv and suggests checking the BIOS settings for visual examples. There are many guides available, so it's important to learn them to achieve the best balance between speed and stability.
This overclocking discussion is about adjusting your motherboard's settings for better performance. The same tips apply to the 8700K as well. As mentioned by huntlong, you can manually increase the vcore slightly while keeping it low enough to stay under 1.26v, which will significantly improve temperatures on the 8700K. The guide also notes that the Offset mode is available at just 20mv; check the page for real examples of BIOS configurations. There are numerous guides available for your motherboard, so it's important to learn them all to achieve the best balance between voltage and clock speed.
Here is an overclocking discussion for your motherboard on the 8600K and 8700K, though the same applies to the 8700K as well. As huntlong mentioned, you can manually increase the vcore at a lower value for the desired 4.7GHz, staying well below 1.26v, which will significantly improve your 8700K temperatures.
The thread also highlights the Offset mode at just 20mV; scroll down to view real BIOS screenshots... There are numerous guides available for your motherboard, so it’s wise to study them in order to achieve the lowest vcore possible for the highest clock speed you desire.
https://www.overclockers.com/forums/show...z-Question
Thanks for the reply, but I wonder—since I just ran a prime95 test, my CPU is at stock 4.3GHz and 1.072V. Is that acceptable for an i7 8700K?
Jack Barber shared some useful information about overclocking your motherboard for the 8600K and 8700K models. He mentioned that you can manually increase the vcore to a lower value, such as around 1.26v, which will significantly improve performance on the 8700K. He also pointed out that the Offset mode is available at just 20mV and encouraged checking the BIOS settings for visual examples. He recommended reviewing multiple guides for your specific motherboard to find the optimal vcore for the highest clock speed you desire.
Here is a revised version of your text:
Jack Barber shared an overclocking discussion for the 8600K motherboard, noting it works similarly for the 8700K. As mentioned by huntlong, you can manually increase the vcore to achieve a lower base value—well below 1.26v—for the desired 4.7GHz clock speed, which will significantly improve performance on the 8700K. He also points out that the Offset mode is available at just 20mV; scrolling down the page will reveal actual BIOS screenshots. There are numerous guides for your motherboard, so it’s wise to study them to find the optimal vcore for your highest desired clock speed.
He provided a link to a forum thread: https://www.overclockers.com/forums/show...z-Question.
Thanks for the help! I was wondering though, since I just ran a Prime95 test, my CPU is running at stock 4.3GHz at 1.072V—does that seem reasonable for an i7 8700K?
Yes, it looks fine. The main concern is at full multi-core speed (4.7GHz), what vcore should I set manually? I’m hoping it will work out...
It's excellent to have a stable vcore at the voltage for continuous use—perfect and yielding great results, particularly in temperature control. Happy days!
That's excellent and there are no concerns about maintaining a fixed vcore at the voltage for continuous use... it's a great outcome, particularly in temperature conditions. I was a bit concerned about the steady voltage, but since everything is working well, I'm sticking with this OC. Thanks for your assistance!