How to Undervolt a Gaming Laptop Safely: CPU & GPU Guide

Gaming laptops are powerful, but that performance comes with a familiar problem: heat.

You start a game, everything runs smoothly for the first 15 or 20 minutes, and then the fans get louder. The keyboard feels warmer. CPU temperatures climb, GPU temperatures follow, and in some cases your frame rate begins to dip.

Undervolting can help, but there is one thing you need to know before touching any voltage setting: not every gaming laptop can be undervolted in the same way.

Some Intel laptops expose CPU voltage controls. Others lock them through the BIOS, firmware, or Intel Undervolt Protection. AMD gaming laptops have their own limitations, while an NVIDIA laptop GPU may still be tunable even when CPU undervolting is completely unavailable.

This guide explains how to undervolt a gaming laptop safely, how to check whether your hardware supports it, how to undervolt Intel CPUs and NVIDIA laptop GPUs, what AMD laptop owners should know, and how to recover if your settings become unstable.

If overheating is the main reason you are considering an undervolt, it is also worth checking our complete gaming laptop overheating fix guide because voltage tuning will not fix blocked vents, failing fans, dried thermal material, or poor airflow.

Quick Answer: How Do You Undervolt a Gaming Laptop?

To undervolt a gaming laptop, first identify your exact CPU and GPU and check whether voltage adjustment is supported. On compatible Intel laptops, CPU undervolting may be available through ThrottleStop, Intel XTU, or BIOS controls. NVIDIA laptop GPUs can often be tuned through MSI Afterburner’s Voltage/Frequency Curve Editor.

Make only small changes, apply one adjustment at a time, and test stability after every change. Do not copy another person’s voltage settings simply because they use the same processor or graphics card.

If CPU voltage controls are locked, do not try to force an unsupported undervolt. You can often get similar thermal benefits by undervolting the GPU, limiting CPU/GPU power, adjusting your laptop’s performance mode, improving airflow, or limiting unnecessary frame rates.

What Is Undervolting a Gaming Laptop?

Undervolting means reducing the voltage supplied to a processor while trying to maintain the clock speeds and performance you actually need.

Processors are designed to operate across a range of voltage and frequency conditions. Laptop manufacturers generally choose settings that provide enough voltage for a large number of chips to remain stable under many workloads and environmental conditions.

Your individual CPU or GPU may be able to perform the same workload with slightly less voltage.

When that happens, you may reduce power consumption and heat without noticeably reducing performance.

That is particularly useful in a gaming laptop because the CPU and GPU share a limited cooling system. Every watt of heat that does not need to be removed gives the fans and heatsinks a little more breathing room.

Undervolting Is Not the Same as Underclocking

These two terms are often mixed together.

Undervolting reduces voltage while attempting to preserve performance.

Underclocking intentionally reduces operating frequency, which normally reduces performance as well as power consumption.

You can combine the two, but they solve slightly different problems.

A good gaming-laptop undervolt aims to improve efficiency first. You are trying to use less voltage for roughly the same useful performance.

CPU Undervolting vs GPU Undervolting

CPU undervolting primarily affects processor power consumption, CPU temperature, and CPU-related thermal throttling.

GPU undervolting primarily affects graphics-card power consumption, GPU temperature, fan speed, and sustained gaming clocks.

Which one matters more depends on your game and laptop design.

A competitive game running at very high FPS may be heavily CPU limited. A demanding AAA title at high graphics settings may place most of the thermal load on the GPU.

Many gaming laptops also use shared heat pipes, so lowering GPU heat can sometimes indirectly help CPU temperatures and vice versa.

Is Undervolting a Gaming Laptop Safe?

A conservative undervolt is generally less physically stressful than applying additional voltage, but that does not mean every undervolt is automatically safe or stable.

The most common result of going too far is instability rather than immediate hardware damage.

You may see:

• Blue screens or sudden restarts
• Games closing unexpectedly
• Application crashes
• Freezing
• Driver resets
• Graphical artifacts during GPU tuning
• Benchmark errors
• Settings that appear stable under load but crash during idle or sleep transitions

There is also a warranty consideration. Intel warns that changing clock frequency or voltage may affect stability, security, performance, component life, and warranty coverage depending on the product and manufacturer. Check your laptop manufacturer’s warranty conditions before changing voltage-related settings.

The safest approach is simple: change one thing at a time and know how to return to stock settings before you begin.

Can Your Gaming Laptop Be Undervolted?

This is the step many guides skip.

Installing ThrottleStop or Intel XTU does not automatically mean your laptop supports CPU undervolting.

Before changing anything, identify your exact hardware.

In Windows, press Windows + R, type msinfo32, and check the processor name. You can also open Task Manager and look under Performance > CPU.

For the GPU, open Task Manager > Performance > GPU, Device Manager, NVIDIA Control Panel, or your laptop manufacturer’s control software.

Write down the full processor model rather than simply noting “Core i7” or “Ryzen 7.”

The difference between something like an H-series, HK-series, and HX-series processor can matter.

How to Check If an Intel Gaming Laptop Supports Undervolting

There are several layers of compatibility:

1. The processor must support the relevant tuning feature.
2. The laptop manufacturer must allow the feature.
3. The BIOS and firmware must expose or permit voltage adjustment.
4. Security and virtualization settings can affect runtime tuning behavior.
5. The tuning software itself must support the processor.

Intel currently states that Undervolt Protection is available on 12th Gen Intel Core processors and newer. When Undervolt Protection is enabled, runtime undervolting may be restricted depending on configuration, although BIOS-level tuning can behave differently. Read Intel’s Undervolt Protection documentation

That means you should not assume:

“I have a 13th or 14th Gen CPU, so undervolting is impossible.”

You also should not assume:

“I have an HX processor, so undervolting is definitely unlocked.”

The specific processor, laptop model, BIOS version, and OEM implementation all matter.

Intel’s current XTU compatibility list includes several high-end mobile processors, including selected 12th, 13th and 14th Gen HX/HK models as well as newer Core Ultra HX processors. Check Intel XTU’s current supported-processor list

What Does “Locked” or “Greyed Out” Mean in ThrottleStop?

If you open ThrottleStop and its FIVR voltage controls are unavailable, greyed out, or changes remain at a zero offset after you click Apply, your laptop may be blocking runtime voltage adjustment.

Possible reasons include:

• Undervolt Protection is enabled
• The OEM locked voltage controls
• Your BIOS does not expose the required functionality
• A BIOS update changed voltage access
• The processor does not support the tuning method
• Windows virtualization/security configuration is affecting the software

Do not immediately start disabling security features or flashing unofficial firmware because a voltage box is greyed out.

First check your laptop manufacturer’s BIOS documentation and support information.

What Is Intel Undervolt Protection?

Intel Undervolt Protection, often shortened to UVP, limits how far processor voltage can be reduced.

Intel says the feature is available on 12th Gen Core processors and newer. Whether undervolting is possible at runtime or through BIOS depends on how UVP, BIOS settings, and virtualization-related features are configured.

This is one reason two gaming laptops using similar processors can behave differently.

A Lenovo Legion may expose controls that an otherwise similar laptop does not, or a BIOS revision may change which options are available.

Can VBS or Memory Integrity Affect Intel Tuning?

Yes.

Intel documents situations where Virtualization-Based Security, or VBS, can affect Intel XTU operation depending on processor generation and Undervolt Protection configuration. Intel explains the XTU and Windows VBS interaction here

That does not mean you should automatically disable Memory Integrity, VBS, Hyper-V, or other Windows security functionality just to undervolt your laptop.

Those features exist for security and virtualization purposes. If your system requires them, keeping them enabled may be more important than gaining access to a voltage offset.

If undervolting is blocked, consider the alternative cooling methods later in this guide instead.

Before Undervolting: Record Your Baseline

You cannot tell whether an undervolt helped if you do not know how the laptop behaved before the change.

Before adjusting voltage, record a baseline under repeatable conditions.

Monitor:

Metric	What to Record
CPU temperature	Average and peak temperature
GPU temperature	Average and peak temperature
CPU clock	Clock speed during sustained load
GPU clock	Clock speed during gaming
CPU/GPU power	If your monitoring tool reports it
Average FPS	Same game and same settings
1% low FPS	Useful for identifying stutter
Fan behavior	Noise level or fan RPM if available

For a quick GPU-temperature check, Windows Task Manager can display GPU temperature on supported hardware. Our guide on checking laptop temperature with Task Manager explains what Windows can and cannot show.

For deeper monitoring, HWiNFO provides detailed CPU, GPU, power and sensor information. Download HWiNFO from the official site

Use the same room, same laptop position, same power mode, and same game or benchmark when comparing before and after results.

Otherwise you may attribute a temperature difference to undervolting when it was actually caused by ambient temperature, fan mode, or workload variation.

How to Undervolt an Intel Gaming Laptop With ThrottleStop

ThrottleStop is widely used for Intel laptop tuning, but whether its voltage controls work depends on your CPU and laptop firmware.

Download it only from its established TechPowerUp distribution rather than random software-download websites.

Step 1: Open ThrottleStop and Check FIVR

Launch ThrottleStop and open the FIVR window.

Before changing anything, inspect whether voltage adjustment controls are available.

If Unlock Adjustable Voltage or equivalent controls are unavailable and the monitoring table continues to show no voltage offset after an attempted change, your system may be locked.

Do not proceed by blindly changing unrelated settings.

Step 2: Start With a Very Small Negative Offset

If voltage control is available, select the CPU voltage domain you intend to tune.

Instead of copying a setting such as -100 mV, -125 mV, or -150 mV from a forum post, begin with a much smaller negative change.

Silicon quality varies even between two laptops containing the same CPU.

A voltage that is completely stable on one Core i9-14900HX can crash another Core i9-14900HX.

Make a small adjustment, apply it, and verify that ThrottleStop’s monitoring information shows the offset actually took effect.

Step 3: Test Before Going Lower

Run a repeatable CPU workload and watch:

• Temperature
• Clock speed
• Package power
• Benchmark score
• Errors or crashes

If the laptop remains stable, you can make another small negative adjustment.

Continue gradually rather than making one large jump.

Step 4: Understand CPU Core and Cache Undervolting

ThrottleStop may expose multiple voltage domains depending on your processor, including CPU Core and cache-related controls.

Do not assume every voltage domain should use the same offset.

Different CPU generations handle voltage domains differently, and some may tolerate a greater negative offset than others.

Tune carefully, make one meaningful change at a time, and confirm stability before adjusting another domain.

Step 5: Stop When the Benefit Becomes Small

You do not win a prize for achieving the lowest possible voltage.

The practical target is a setting that gives you the thermal and power improvement you want while remaining stable in everyday use.

If another reduction saves almost no temperature or power but starts creating crashes, return to the previous stable configuration.

How to Undervolt a Gaming Laptop With Intel XTU

Intel Extreme Tuning Utility, or Intel XTU, is another option on supported hardware.

Before installing it, check Intel’s official processor support list. Intel specifically recommends verifying that your processor is supported by the current XTU version.

Step 1: Confirm Your CPU Is Supported

Do not rely only on the fact that your processor is branded Core i7, Core i9, or Core Ultra.

Check the full model against Intel’s current list.

Step 2: Look for Voltage Controls

If your processor, laptop, BIOS, and security configuration support runtime voltage tuning, XTU may expose voltage-related controls.

If the setting is missing or locked, do not assume the software is broken.

The laptop may simply not permit that control.

Step 3: Apply a Small Negative Offset

As with ThrottleStop, start conservatively.

Apply a small negative change rather than copying a large preset from another computer.

Run a benchmark and compare it with your baseline.

Step 4: Watch Performance as Well as Temperature

A lower temperature is not automatically a successful undervolt.

If your benchmark score or gaming performance suddenly falls, something else may have changed, such as:

• Clock limits
• Power limits
• Thermal profile
• Laptop performance mode
• An unstable voltage causing clock stretching or errors

Your goal is improved efficiency, not simply a smaller number in the voltage box.

ThrottleStop vs Intel XTU: Which Should You Use?

There is no universal answer because compatibility matters more than preference.

Feature	ThrottleStop	Intel XTU
Main platform	Intel systems	Supported Intel enthusiast platforms
Laptop use	Common among laptop enthusiasts	Limited to Intel-supported CPUs/platforms
Voltage control	Depends on CPU and firmware	Depends on CPU, BIOS and XTU support
Monitoring	Strong CPU-focused monitoring	Integrated tuning and monitoring
Official Intel utility	No	Yes
Best choice	When your supported laptop exposes the needed controls	When your exact processor/platform is officially supported

If XTU officially supports your processor and exposes the tuning controls you need, it offers a straightforward path.

ThrottleStop can be useful on compatible laptops that expose the relevant controls, but neither utility can magically override every OEM firmware restriction.

Can You Undervolt an Intel CPU Through the BIOS?

Sometimes.

A gaming-laptop BIOS may expose settings such as:

• Core Voltage Offset
• Voltage Offset
• CPU Voltage
• Overclocking Feature
• Undervolt Protection
• Advanced CPU Configuration

The exact names vary by manufacturer.

BIOS tuning has one major advantage: if the manufacturer officially exposes the control, you are working at the firmware level rather than relying entirely on a Windows utility.

The disadvantage is that a bad setting can make troubleshooting less convenient.

Before changing BIOS voltage settings, learn how your laptop handles a failed boot and how to restore default BIOS settings.

Do not flash modified BIOS files just because the factory firmware does not expose undervolting.

How to Undervolt an AMD Ryzen Gaming Laptop

AMD laptop CPU tuning is different from desktop Ryzen tuning.

One common mistake is telling every AMD laptop owner to install Ryzen Master.

AMD’s current Ryzen Master documentation says official overclocking support is provided for AM4, AM5 and SP6 socket infrastructure — desktop processors. See AMD Ryzen Master’s supported platforms

That means Ryzen Master should not be treated as a universal undervolting tool for Ryzen gaming laptops.

For an AMD gaming laptop, start with:

1. Your manufacturer’s BIOS.
2. The manufacturer’s performance or tuning software.
3. Official documentation for your exact model.

Some systems may expose CPU power, thermal or curve controls. Others may expose almost nothing.

If the CPU is locked down, do not force a desktop tuning method onto the laptop.

Instead, consider GPU undervolting, Eco/Balanced performance profiles, lower CPU power limits where officially available, FPS caps, and better cooling.

AMD does document Curve Optimizer as a method of shifting supported processors toward lower voltages with negative values, but AMD also notes that the feature is not available on every CPU.

For gaming-laptop owners, the important lesson is compatibility first.

How to Undervolt an NVIDIA Gaming Laptop GPU With MSI Afterburner

GPU undervolting is often the most practical option for gaming laptops because many NVIDIA mobile GPUs can be tuned through a voltage/frequency curve even when CPU voltage controls are unavailable.

MSI states that Afterburner works with laptop GPUs, although laptop firmware and manufacturer limits can restrict what you are able to change.

Step 1: Record Your Default GPU Behavior

Before editing the curve, run a demanding game for several minutes.

Record:

• GPU frequency
• GPU voltage
• GPU temperature
• GPU power
• Average FPS
• 1% low FPS

Do this under the same graphics settings you will use when testing the undervolt.

Step 2: Open the Voltage/Frequency Curve Editor

Open MSI Afterburner and press Ctrl + F or use the Curve Editor button.

The graph represents voltage on one axis and GPU frequency on the other.

Instead of thinking:

“What voltage should an RTX 4060 laptop use?”

think:

“What is the lowest stable voltage at which my GPU can maintain the frequency I actually need?”

That distinction matters.

Laptop RTX 4060, 4070, 4080 and other mobile GPUs operate under different power limits depending on the laptop manufacturer and cooling design.

Step 3: Choose a Lower Voltage Point

Find the clock speed your GPU commonly reaches under gaming load.

Then choose a slightly lower voltage point on the curve and adjust that point toward a frequency close to the performance level you want to retain.

Do not start with an aggressively low voltage just because someone else’s GPU is stable there.

MSI’s own undervolting guide recommends using the Voltage/Frequency Curve Editor and testing progressively rather than assuming one target works for every GPU. Read MSI’s official Afterburner undervolting guide

Step 4: Control the Higher-Voltage Part of the Curve

After setting your target point, adjust or flatten the higher-voltage portion of the curve so the GPU does not simply boost back into the voltage range you are trying to avoid.

Apply the curve.

Then check that the GPU is actually operating near your target during a gaming load.

Step 5: Save the Profile

Once you have a configuration worth testing, save it to an Afterburner profile.

Do not immediately enable automatic startup before proving the profile is stable.

A bad undervolt is much easier to troubleshoot when it is not automatically reapplied every time Windows starts.

Step 6: Test a Real Game

Synthetic benchmarks are useful, but gaming stability matters more for a gaming laptop.

Play several of the games you normally use.

Watch for:

• Flickering
• Black screens
• Driver crashes
• Game crashes
• Sudden clock drops
• Stuttering
• Worse 1% low FPS
• Visual artifacts

If any appear, return to the previous stable curve.

How to Test a Laptop Undervolt for Stability

A five-minute benchmark is not enough to declare an undervolt stable.

Different workloads stress different parts of the processor.

A configuration may complete a CPU benchmark and still crash while:

• Launching a game
• Compiling shaders
• Streaming and gaming together
• Waking from sleep
• Sitting nearly idle
• Switching between AC power and battery
• Loading several CPU cores suddenly

For CPU testing, Cinebench is a useful repeatable workload. Maxon currently provides Cinebench 2026 for supported systems. Download Cinebench from Maxon

For GPU testing, combine a repeatable graphics benchmark with actual games.

A good stability routine includes a short initial stress test, a longer sustained load, several real games, normal desktop use, idle time, and at least one sleep/wake cycle.

If your computer crashes two days later during light browsing, the undervolt is not truly stable simply because it completed a benchmark earlier.

How Much Should You Undervolt a Gaming Laptop?

There is no correct universal number.

That point is important enough to repeat:

There is no safe “best undervolt” that works on every gaming laptop.

Two laptops can have:

• The same CPU
• The same GPU
• The same amount of RAM
• The same laptop model

and still have different undervolting limits.

This happens because individual chips vary.

Cooling quality also varies, as do firmware revisions, power limits, room temperatures, background processes, and laptop performance profiles.

Instead of searching for the biggest negative offset, search for the smallest change that gives you a worthwhile improvement while remaining completely stable.

That is a much better target.

Does Undervolting Reduce Gaming-Laptop Temperature?

It can.

Reducing voltage can reduce processor power consumption, which can reduce heat output.

The actual temperature difference depends on what is limiting your laptop.

If your cooling system is already saturated with dust, undervolting cannot clean it.

If your fans are failing, undervolting cannot repair them.

If the CPU is operating near its thermal limit because the heatsink has poor contact, voltage tuning may help a little but will not fix the underlying cooling problem.

For broader thermal troubleshooting, use our gaming laptop overheating guide alongside this undervolting tutorial.

Does Undervolting Improve FPS?

Sometimes, but that should not be promised.

If your gaming laptop is thermal throttling, reducing heat may allow the CPU or GPU to sustain its boost clock for longer. In that case, frame-rate consistency can improve.

If the laptop was not throttling in the first place, average FPS may remain almost unchanged.

That is still a successful result if you achieve similar performance with:

• Lower temperatures
• Lower power consumption
• Less fan noise
• Better sustained clocks

Undervolting is primarily an efficiency technique, not a magical FPS booster.

If your goal is maximum overall gaming performance rather than specifically lower voltage, our gaming laptop optimization guide covers the other settings worth checking.

Can Undervolting Make a Gaming Laptop Quieter?

Yes, indirectly.

Your laptop’s cooling system responds to heat.

If an undervolt reduces CPU or GPU heat enough to keep the system below a more aggressive fan-speed threshold, the fans may not need to spin as fast.

The improvement varies because laptop fan curves are controlled by the manufacturer.

If your fans stay loud even at reasonable temperatures, investigate the cause separately. Dust, background CPU usage, aggressive performance modes, bearing problems, and OEM fan curves can all cause excessive noise. Our guide to fixing a loud laptop fan can help diagnose those issues.

How to Make an Undervolt Apply After Restart

This depends on the tuning software.

MSI Afterburner includes an option to start with Windows and reload saved settings. MSI’s official documentation explains its startup and profile behavior.

ThrottleStop users commonly use Windows Task Scheduler because ThrottleStop is not simply configured like a normal startup application in every setup.

Microsoft documents that Task Scheduler can launch a program using a logon trigger when a specified user signs in. Microsoft’s Task Scheduler logon-trigger documentation

However, do not make an undervolt load automatically until you are confident it is stable.

Test manually first.

Once you know the profile survives gaming, benchmarks, idle periods, restarts, and sleep/wake cycles, then consider automatic loading.

Why Does My Undervolt Reset After Reboot?

There are several possibilities.

The tuning software may not be configured to start with Windows.

Your profile may not have been saved.

Your laptop’s manufacturer software may overwrite performance settings after login.

A BIOS or firmware process may restore default values.

Windows security or virtualization configuration may prevent the utility from applying the same settings after restart.

Or the voltage adjustment may never have been applied successfully in the first place.

After rebooting, reopen your monitoring tool and verify the actual voltage offset or voltage/frequency behavior instead of assuming the profile loaded correctly.

Undervolting Not Working? Common Problems and Fixes

ThrottleStop FIVR Is Locked or Greyed Out

Your CPU or laptop firmware may block runtime voltage control.

Check Intel Undervolt Protection status, your OEM BIOS, processor support and firmware version.

Do not treat a locked FIVR screen as something that must be bypassed.

Intel XTU Does Not Show Voltage Control

First verify that your exact processor appears in Intel’s supported-product list.

Even on a supported processor, laptop BIOS configuration can determine which controls are available.

ThrottleStop Shows a 0.0000 Offset

If you applied an offset but monitoring still reports zero, the voltage adjustment may not actually be reaching the processor.

Undervolt Protection or firmware restrictions are common causes on newer hardware.

The Laptop Crashes or Shows a BSOD

Your undervolt is probably too aggressive.

Return toward the last known-stable setting.

If you changed several voltage domains simultaneously, return them to default and reintroduce changes one at a time.

Stress Tests Pass but Games Crash

This is entirely possible.

Different workloads create different voltage, frequency and load transitions.

Reduce the undervolt slightly and retest the games that caused the crash.

Temperature Did Not Improve

Check whether voltage and power consumption actually decreased.

Also look for:

• Thermal throttling
• Dirty vents
• High ambient temperature
• Poor heatsink contact
• A high GPU workload heating shared heat pipes
• Maximum fan or performance mode
• CPU power limits that continue pushing the processor harder

Undervolting is only one part of thermal management.

Performance Became Worse

Compare clock speeds, power limits and benchmark results with your baseline.

You may have changed more than voltage, or the system may be operating unstably.

Reset to default and retest before assuming the laptop itself has developed a problem.

A BIOS Update Disabled Undervolting

This can happen when manufacturers change firmware behavior or security configuration.

Check the laptop manufacturer’s BIOS release notes and support pages.

Avoid downgrading to unofficial or vulnerable firmware purely to recover an undervolting feature.

Security and system stability matter more than a few degrees of temperature reduction.

How to Reset or Undo an Undervolt

Knowing how to return to stock settings should be part of the process, not something you research after a crash.

Reset a ThrottleStop Undervolt

Open ThrottleStop and return your voltage offsets to their default values.

Apply the default configuration and confirm that monitoring shows the voltage offsets have been removed.

If you configured automatic startup, disable it while troubleshooting.

Reset Intel XTU

Open Intel XTU and restore the default tuning profile or default values.

Restart the computer and verify stock behavior.

Reset an MSI Afterburner GPU Undervolt

Open Afterburner and click Reset to return the GPU to its default curve and settings.

MSI also documents the Reset function as the way to restore default GPU behavior during testing.

Disable automatic profile loading until you have resolved the problem.

What If Windows Crashes Before You Can Reset It?

If an automatic tuning profile causes problems immediately after login, use Windows recovery options or Safe Mode as appropriate to prevent the tuning application from loading.

Then remove or disable the automatic startup configuration before returning to normal Windows.

This is another reason not to enable “apply at startup” while you are still experimenting.

What If Your Gaming Laptop Cannot Be Undervolted?

You still have several effective options.

Use a Balanced Performance Mode

Most gaming laptops provide several profiles through manufacturer software:

• ASUS Armoury Crate
• Lenovo Vantage
• MSI Center
• OMEN Gaming Hub
• Acer PredatorSense
• Alienware Command Center

Balanced mode can reduce unnecessary CPU and GPU power without requiring manual voltage control.

Limit CPU Power

Some manufacturers provide CPU power-limit controls even when voltage controls are locked.

Reducing excessive boost power can dramatically reduce temperature in CPU-heavy workloads.

The tradeoff is that a very low power limit can reduce performance, so test before and after.

Undervolt the GPU Instead

If CPU voltage control is unavailable but you have an NVIDIA gaming GPU, MSI Afterburner may still allow a useful GPU voltage/frequency curve.

For many GPU-heavy games, this can deliver a larger thermal improvement than CPU undervolting anyway.

Cap Your Frame Rate

A GPU rendering 250 FPS on a 144 Hz display may be doing work you do not need.

Setting a sensible frame-rate cap can reduce GPU load, power consumption and fan noise.

Improve Airflow

Keep the laptop on a hard surface and make sure the bottom intake vents are unobstructed.

A stand that raises the rear of the laptop can improve access to cool air on many designs.

Clean the Cooling System

Voltage tuning will not solve a heatsink packed with dust.

If temperatures have increased gradually over months or years, clean the vents and inspect the fans before assuming voltage is the main problem.

CPU vs GPU Undervolting: Which Should You Do First?

Choose based on what is actually causing the heat.

Situation	Better Starting Point
CPU hits thermal limit in CPU-heavy games	CPU tuning, if supported
GPU runs hot at high utilization	GPU undervolt
CPU voltage is locked	GPU undervolt or CPU power tuning
Loud fans during GPU-heavy AAA games	GPU efficiency tuning
FPS drops after CPU temperature spikes	Investigate CPU thermal throttling
CPU and GPU both run hot	Start with the largest heat source and improve general cooling

You do not necessarily need to undervolt both components.

One well-tuned component may provide the result you wanted.

Frequently Asked Questions About How to Undervolt a Gaming Laptop Safely

Can you undervolt a gaming laptop?

Yes, some gaming laptops support CPU or GPU undervolting, but compatibility depends on the processor, GPU, manufacturer, BIOS and firmware. Many newer laptops restrict CPU voltage adjustment while still allowing some form of GPU tuning.

Is undervolting a gaming laptop safe?

A conservative undervolt is generally used to reduce power and heat, but unstable settings can cause crashes, freezes and data loss from unexpected shutdowns. Always make small changes and test them thoroughly.

Can undervolting damage a laptop?

The more common problem with an excessive undervolt is instability rather than damage from excessive voltage. However, changing processor operating parameters can affect stability, warranty conditions and system behavior, so follow your manufacturer’s guidance.

Does undervolting reduce gaming performance?

A properly tuned undervolt may maintain similar performance while using less power. An aggressive or incorrectly configured undervolt can reduce performance or create instability.

Does undervolting increase FPS?

Not automatically. It may help maintain higher sustained performance if your laptop was previously thermal throttling, but a laptop that was already running within thermal limits may show little or no FPS increase.

How much should I undervolt my gaming laptop?

There is no universal value. Start with a small change and test. The maximum stable undervolt varies between individual CPUs and GPUs, even when the model numbers are identical.

Can you undervolt Intel 12th, 13th or 14th Gen gaming laptops?

Some can be tuned while others are restricted. Intel Undervolt Protection is available on 12th Gen and newer processors, and OEM BIOS configuration plays an important role. Selected mobile HX and HK processors are also included in Intel’s current XTU support list.

Can you undervolt an Intel Core Ultra gaming laptop?

It depends on the specific processor and laptop. Intel’s current XTU download page includes selected Core Ultra HX processors, but that does not mean every Core Ultra laptop exposes voltage controls. Check your exact CPU and OEM firmware.

Why is ThrottleStop FIVR locked?

Common reasons include Intel Undervolt Protection, OEM firmware restrictions, unsupported hardware or BIOS configuration. If the controls are locked, confirm compatibility before attempting further changes.

Why is Intel XTU voltage control greyed out?

Your processor may not be supported, the laptop manufacturer may restrict the function, Undervolt Protection may be active, or firmware/security configuration may prevent runtime tuning.

Can I undervolt an RTX 4060 or RTX 4070 laptop GPU?

Many NVIDIA laptop GPUs can be tuned through MSI Afterburner’s Voltage/Frequency Curve Editor, although available controls and power limits vary by laptop manufacturer. MSI confirms that Afterburner works with laptop GPUs.

Can I undervolt the CPU and GPU at the same time?

Yes, if both components and your laptop support it. It is better to tune and test one component first so you can identify the cause if instability appears.

Does undervolting help battery life?

Lower power consumption can potentially reduce energy use in workloads where the undervolt is active, but gaming laptops often use aggressive power limits and dedicated GPUs while plugged in. Battery-life improvement should be treated as a possible side benefit rather than a guaranteed result.

Does undervolting reduce fan noise?

It can. If reduced power lowers temperatures enough, the laptop’s fan controller may use a slower fan speed. Results depend on the manufacturer’s fan curve.

Why does my undervolt disappear after restarting Windows?

Your tuning utility may not be configured to load the profile automatically, manufacturer software may overwrite the settings, or firmware restrictions may be restoring defaults.

Can I undervolt without BIOS access?

Possibly. Some compatible systems allow runtime tuning through software such as Intel XTU, ThrottleStop or MSI Afterburner. If firmware blocks the feature, software may not be able to override it.

Final Thoughts

Undervolting a gaming laptop is not about chasing the largest negative voltage number you can find.

The useful goal is much simpler: reduce unnecessary power and heat while keeping the laptop completely stable and preserving the performance you care about.

Start by identifying your exact CPU and GPU. Check whether your laptop genuinely supports the tuning method you intend to use. Record your baseline before changing anything, make small adjustments, and verify every change with monitoring and stability tests.

For Intel laptops, remember that processor support, Undervolt Protection and OEM firmware can determine whether CPU tuning is available. For AMD laptops, do not assume desktop Ryzen Master instructions apply to mobile hardware. For NVIDIA gaming laptops, GPU curve tuning through MSI Afterburner can be a practical alternative when CPU voltage is locked.

Most importantly, do not treat undervolting as a substitute for proper cooling.

A laptop with clogged vents, poor airflow or a failing fan needs the underlying problem fixed.

When the cooling system is healthy and your hardware allows tuning, a carefully tested undervolt can be one of the most effective ways to make a gaming laptop run cooler, consume less power and maintain more consistent performance without unnecessarily sacrificing gaming speed.