How to Disable Overclocking on Your CPU or GPU
Overclocking can squeeze extra performance out of your hardware — but it also raises temperatures, increases power draw, and in some cases causes system instability. Whether you're troubleshooting crashes, preparing to sell a machine, or simply want to return your components to their factory-intended speeds, disabling overclocking is usually straightforward. The exact steps, however, depend on how the overclock was applied in the first place.
Understanding How Overclocking Gets Applied
Before you can disable an overclock, it helps to know where it lives. Overclocks are typically applied in one of three places:
- BIOS/UEFI settings — Manual overclocks entered directly into motherboard firmware
- Motherboard vendor profiles — Features like Intel XMP, AMD EXPO, or ASUS AI Overclocking that apply preset overclocks automatically
- Third-party software — Tools like MSI Afterburner, AMD Radeon Software, or Intel XTU that apply overclocks at the OS level
Each of these requires a different approach to undo. Rebooting alone won't clear a BIOS-level overclock, and uninstalling software won't help if the overclock is baked into firmware settings.
How to Disable Overclocking in the BIOS/UEFI ⚙️
This is the most common location for CPU and RAM overclocks. To access your BIOS:
- Restart your computer
- Press the BIOS entry key during boot (commonly Delete, F2, F10, or Esc — varies by motherboard manufacturer)
- Navigate to the overclocking, performance, or AI Tweaker section (naming varies by vendor)
Once inside, look for these settings:
| Setting | What to Change |
|---|---|
| CPU Ratio / Multiplier | Set to Auto or stock value |
| CPU Base Clock (BCLK) | Return to 100 MHz (default) |
| CPU Voltage (Vcore) | Set to Auto |
| XMP / EXPO Profile | Disable or set to Profile 0 |
| RAM Frequency | Set to Auto or JEDEC default |
The safest single action is to load optimized defaults — most BIOS menus have this option, often accessible via the F5 or F9 key. This restores all settings to manufacturer-recommended values and clears any manual overclocking configurations in one step.
Save and exit, and your system will reboot at stock speeds.
A Note on XMP and EXPO
Intel XMP (Extreme Memory Profile) and AMD EXPO are technically overclocks — they push RAM beyond its base JEDEC specification. Many systems have these enabled by default after a first boot prompt. If your RAM is running faster than its base spec and you want to return to fully stock behavior, disabling XMP/EXPO in the BIOS is the right step. Be aware this will reduce RAM speed, which may affect performance in memory-sensitive workloads.
How to Disable Software-Based Overclocking
If your overclock was applied through a utility rather than the BIOS, the process is different.
For GPU overclocks (e.g., MSI Afterburner, EVGA Precision X1):
- Open the software
- Click the Reset button (usually a circular arrow icon) to return clocks and voltages to default
- Disable any startup profiles that automatically reapply the overclock on boot
For CPU overclocks (e.g., Intel XTU, AMD Ryzen Master):
- Open the application
- Look for a Reset to Default or Restore Stock Settings option
- Confirm the change — some tools require a reboot to take effect
It's also worth checking whether the software is set to launch at startup and reapply profiles. Even after resetting values, if a profile is loaded on boot, the overclock returns. Disable startup behavior in the software settings or through Windows Task Manager's Startup tab.
Verifying the Overclock Is Removed 🔍
After making changes, confirm your hardware is running at stock speeds:
- CPU-Z — Shows real-time CPU multiplier, clock speed, and voltage
- GPU-Z — Displays GPU core and memory clocks at idle and under load
- HWiNFO64 — Comprehensive sensor data for both CPU and GPU
- Task Manager (Windows) — Shows CPU speed under the Performance tab; compare against your processor's base clock listed on the manufacturer's spec page
Your CPU may show speeds above its base clock under load — this is normal Turbo Boost / Precision Boost behavior, not an overclock. Turbo Boost dynamically raises clock speeds within Intel or AMD's defined thermal and power limits. This is not the same as a user-applied overclock and doesn't need to be disabled unless you're specifically targeting power reduction or thermal management.
When the System Won't Boot After an Overclock
If an unstable overclock has caused your PC to fail to boot, you likely can't access the BIOS normally. In this case:
- Clear the CMOS — Most desktop motherboards have a dedicated CMOS reset button or a jumper on the board. Pressing it (with the system powered off) clears all BIOS settings and restores defaults
- Remove the CMOS battery — On boards without a reset button, removing the small circular battery on the motherboard for 30–60 seconds achieves the same result
- Laptops generally don't offer CMOS access, but most will auto-detect instability and revert settings after a series of failed boots
The Variables That Shape Your Situation
How straightforward this process is depends on a few factors that vary significantly between users:
- Desktop vs. laptop — Laptops offer far less BIOS access and overclocking capability; most consumer laptops don't support manual overclocking at all
- Motherboard vendor — BIOS layouts differ substantially between ASUS, MSI, Gigabyte, ASRock, and others
- Who applied the overclock — A pre-built system from a manufacturer like ASUS ROG or Alienware may have factory overclocks applied at a firmware level that aren't as easy to locate as a manual user setting
- How aggressive the overclock was — Mild overclocks via XMP are easy to reverse; heavy manual overclocks with custom voltage curves require more careful restoration
The right path back to stock settings is clear in principle — but where exactly those settings live, and which ones need touching, depends entirely on your specific hardware and how the overclock was originally configured.