Overclocked to 4.0GHz yet operates at 3.6GHz
Overclocked to 4.0GHz yet operates at 3.6GHz
Hello, your system isn't performing at the expected speed even though you've been using it at overclocked settings. In the BIOS, you've configured the CPU Core Ratio to Sync All Cores and set it to 40, yet the processor still runs at 3.6GHz.
I regularly run my CPU at 4.0GHz with fan cooling for the past year, and everything functioned properly until August 2018. Sometimes I get a warning message during startup that says "Overclock Failed, press F1 to enter BIOS," but this never caused problems before—just pressing F1 would normally boot me up without issues.
Here are my current BIOS settings for the overclock:
https://imgur.com/a/tWwGG5S
My previous BIOS version was 3301, and I updated to 3902 today; there were no noticeable changes.
Hardware details:
- Motherboard: ASUS X99-A
- CPU: Intel Core i7-6800K 3.4GHz
- RAM: Corsair Vengeance LPX 16GB (4x4)
- OS: Windows 10 64-bit
- GPU: ASUS Strix GTX 970 4GB
- Power Supply: Antec HCG 750M
Additionally, outside of the overclocking problem, my computer freezes briefly every second for about a hundred milliseconds. This is unusual and not typical behavior. I haven’t updated my drivers, but the issue persists. It’s clear this could be connected to the overclock failure, though I’m unsure. I’d like to understand what might be causing this.
It seems like the signs point to an unstable overclock. It’s unusual for a thread to display such low resource usage in the task manager during a stress test. Consider reducing the overclock slightly and then retesting with Prime95. The overclock remains stable if it operates smoothly for a long time without crashes, freezes, or speed drops.
Additionally, when you encounter the boot failure screen, the system reverts the CPU back to its original speeds, which likely causes the observed drop from 4.0GHz to 3.6GHz. This confirms the overclock was removed.
I believe you've come across the Broadwell overclocking issue. It seems that recent updates to Windows 10 are causing problems with overclocking on Broadwell-E CPUs on the X99 platform, and it appears Microsoft hasn't addressed this before. You might need to switch to an older version of Windows 10 and try to stop the upgrade process, or simply run at 3.6GHz.