F5F Stay Refreshed Power Users Overclocking Some issue with Windows is causing my OC to fail.

Some issue with Windows is causing my OC to fail.

Some issue with Windows is causing my OC to fail.

A
Abe_YouTube7
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11-29-2025, 02:42 PM
#1
Hello. I've been using my i5-9600K at a stable overclock of 5000MHz for several months now. Recently, I've observed the system occasionally running at stock CPU boost (around 4300MHz), but a quick restart always resolved the issue. Now, after booting into Windows 10, the overclock reverts back to stock levels. In BIOS (MSI MPG Z390 GAMING PRO CARBON), the overclock remains active and all configurations stay the same. When Windows 10 starts, if I launch CPUZ right away, the CPU shows 5000MHz, but after a few seconds while processes load, it drops back to stock and stays there. It’s puzzling how this happens. What I’ve checked: - Power options in Windows 10 are set to High Performance. - MSI Dragon Center is disabled to prevent software from affecting the overclock (previously didn’t cause issues). - I renamed mcupdate_GenuineIntel.dll from a fix source: Additional notes: - Enabled and disabled various startup programs to see if any were causing the problem; none were involved. - Task Manager performance monitor shows inconsistent readings—sometimes 6800MHz, other times 5.3–5.7MHz, and then drops to 4.3GHz. - CPUZ reports 5000MHz immediately after Windows boots, then drops to stock speeds, while the system claims 5GHz. Anyone have further suggestions? It doesn’t appear to be a BIOS issue based on how it’s happening.
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A
Abe_YouTube7
11-29-2025, 02:42 PM #1

Hello. I've been using my i5-9600K at a stable overclock of 5000MHz for several months now. Recently, I've observed the system occasionally running at stock CPU boost (around 4300MHz), but a quick restart always resolved the issue. Now, after booting into Windows 10, the overclock reverts back to stock levels. In BIOS (MSI MPG Z390 GAMING PRO CARBON), the overclock remains active and all configurations stay the same. When Windows 10 starts, if I launch CPUZ right away, the CPU shows 5000MHz, but after a few seconds while processes load, it drops back to stock and stays there. It’s puzzling how this happens. What I’ve checked: - Power options in Windows 10 are set to High Performance. - MSI Dragon Center is disabled to prevent software from affecting the overclock (previously didn’t cause issues). - I renamed mcupdate_GenuineIntel.dll from a fix source: Additional notes: - Enabled and disabled various startup programs to see if any were causing the problem; none were involved. - Task Manager performance monitor shows inconsistent readings—sometimes 6800MHz, other times 5.3–5.7MHz, and then drops to 4.3GHz. - CPUZ reports 5000MHz immediately after Windows boots, then drops to stock speeds, while the system claims 5GHz. Anyone have further suggestions? It doesn’t appear to be a BIOS issue based on how it’s happening.

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MCmasterKIDz
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11-29-2025, 02:42 PM
#2
During further troubleshooting I removed "CoreTemp" and it seems to have fixed the issue. It was also one of the last programs to run at startup, but I was seeing 5000mhz readings before they stabilized to normal clocks. After removing that program, I no longer experience the drop to stock clocks. I’m not sure why this happens, since I don’t think an app could change CPU clock settings directly?
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MCmasterKIDz
11-29-2025, 02:42 PM #2

During further troubleshooting I removed "CoreTemp" and it seems to have fixed the issue. It was also one of the last programs to run at startup, but I was seeing 5000mhz readings before they stabilized to normal clocks. After removing that program, I no longer experience the drop to stock clocks. I’m not sure why this happens, since I don’t think an app could change CPU clock settings directly?

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