If you built your PC from used parts, the previous owner may have overclocked via a physical BIOS switch (some high-end motherboards). Check for a small toggle labeled "LN2" or "OC Switch" and flip it to normal.
Many modern mid-to-high-end motherboards feature a "Clear CMOS" button on the rear I/O panel. Turn off your power supply, hold this button down for 10 seconds, and turn the PC back on.
If you used the experimental performance tuning feature in NVIDIA's desktop software: how to disable overclocking
On ASUS/ASRock AM5 boards, physical jumper OC_LOCK# tied to GPIO pin 47 can be asserted to ground, forcing SMU into strict compliance mode.
If your system is now stable with overclocking disabled, enjoy the reliability. If you miss the speed, consider enabling for AMD or Thermal Velocity Boost for Intel – these are manufacturer-approved "auto-overclocks" that are much safer than manual tuning. If you built your PC from used parts,
If you ever decide to overclock again in the future, do so incrementally, stress-test thoroughly, and keep an eye on temperatures. But now you know exactly how to disable it all when necessary. Happy computing!
: Look for an option like "Load Optimized Defaults" or "Load Setup Defaults." This resets all settings, including overclocking, to factory standards. Manual Adjustment : If you only want to change specific settings, locate the Overclocking AI Tweaker CPU Settings tab. Set the following to "Auto" or "Default": CPU Ratio / Multiplier Core Voltage PBO (Precision Boost Overdrive) Core Performance Boost (for AMD CPUs) Save and Exit to save your changes and restart. Level1Techs Forums 2. Disable GPU Overclocking via Software If you used a utility like MSI Afterburner Turn off your power supply, hold this button
Press Ctrl + Shift + Esc , go to the Performance tab, and click CPU or Memory . Check the operating speed to ensure it matches the advertised base speed of your hardware.
Turn the PC back on and immediately tap the designated setup key repeatedly. This is usually Delete , F2 , F10 , or F12 (check your motherboard boot screen or manual).
How to Disable Overclocking: A Complete Guide to Restoring Stock Settings
If you want to look into other ways to optimize your computer, let me know: