Stop Laptop Thermal Throttling: 7 Practical Fixes

You are halfway through a deadline. The cursor stutters. Your fan sounds like a hair dryer. Framerates drop to a slideshow. This is thermal throttling — your laptop’s last-ditch effort to keep from melting its own brain.

Thermal throttling happens when the CPU or GPU hits a temperature ceiling (usually around 95-100°C for Intel, 90-95°C for AMD) and the system deliberately cuts performance to save itself. You lose speed, responsiveness, and sometimes battery life too. The fix is rarely a single magic bullet. But with a methodical approach, you can recover most of that lost performance.

This guide walks through seven fixes, ordered from quickest and safest to most invasive. By the time you finish, you will know exactly what’s happening inside your chassis, and exactly what to do about it — without wasting time on stuff that won’t work for your specific laptop.

I have tested these methods on everything from thin ultrabooks to thick gaming rigs. Some fixes cost nothing. A few require a screwdriver. One or two might void a warranty. I will flag those clearly.

Diagnose First: Are You Actually Thermal Throttling?

Many people blame thermal throttling when the real problem is something else — a background miner, a dying battery, or a power plan set to battery saver. Before you touch anything, measure what’s happening.

Download HWMonitor, HWiNFO, or ThrottleStop. These are free monitoring tools. Run them while you do your normal workload. Watch these values:

• CPU package temperature (should stay under 90°C under load)
• CPU clock speed (should not drop more than 10-20% from its base or boost frequency)
• Throttling flags (HWInfo shows a red ‘Yes’ when thermal or power throttling is active)

If the temperature stays below 85°C but clocks drop anyway, you might have power throttling, not thermal. That is a different problem — often fixable by switching power plans or raising PL1/PL2 limits. If temps hit 95°C and clocks plummet, you have classic thermal throttling.

Some laptops throttle differently for CPU vs GPU. In a gaming session, the CPU might run hot while the GPU stays cool, or vice versa. How thermal throttling impacts CPU and GPU can give you a clearer picture of which component is the bottleneck. Use that information to decide where to focus your fixes.

The Quick Wins: Physical Setup and Placement Fixes

You can fix thermal throttling without opening anything. These three changes cost nothing and work on every laptop.

Elevate the rear. A laptop sitting flat on a desk suffocates its own fan intake. Raise the back edge by half an inch — a book, a pen cap, anything. That creates a small gap for air. Tests show a 2-5°C drop just from tilting it. A dedicated laptop stand gives even better results, especially mesh or open-frame designs.

Watch your ambient temperature. If the room is 30°C, your laptop starts 10°C hotter than it would in a 20°C room. Direct sunlight on the chassis will drive temps up fast. Move the laptop to a cooler spot. That single change can reduce throttling in some machines.

Clear the vents. Blow compressed air through the exhaust vents while the laptop is off. Dust bunnies block airflow. Annual cleaning of the vents alone can lower temps by 5-10°C. Do this before you try anything more involved.

One more thing — check your power plan. Windows Balanced mode often holds back performance to save power. Switch to High Performance (Control Panel > Power Options). That alone can raise power limits and reduce throttling frequency, though it may shorten battery life. For a laptop like the HP 15.6″ FHD Laptop 2026 Edition with Copilot AI, 8GB RAM, 256GB SSD, Intel Processor, Long Battery Life, Lightweight 3.64 lbs, which already balances power well for daily tasks, this tweak is most useful if you hit throttling during video calls or multitasking heavy Office sessions.

Software Adjustments Without Opening Your Laptop

If the physical fixes are not enough, you can change how your CPU behaves without touching a screwdriver.

Power Limit Tuning (PL1 and PL2)

Modern Intel and AMD CPUs have configurable power limits. PL1 (the sustained power limit) and PL2 (the short burst limit) determine how much wattage the CPU can draw before throttling. Slim laptops often ship with very low PL1 values to keep thermals in check. You can raise them slightly — within safe thermal margins — using ThrottleStop or Intel XTU (for Intel) or Ryzen Controller (for AMD).

How to do it: Run ThrottleStop, check the ‘Set Multiplier’ box, and adjust the PL1 and PL2 sliders. I usually raise PL1 by 2-5 watts and test stability. Monitor temps closely. If they stay under 90°C, you gained performance. The gain is modest — maybe 5-10% in sustained workloads — but consistent.

Disable Turbo Boost (Drastic, But Works)

If your laptop throttles every time it boosts, disable Turbo Boost entirely. In ThrottleStop, check the ‘Disable Turbo’ box. Your CPU then runs at its base clock only. That kills peak performance but eliminates thermal spikes. This is a fair trade for an older laptop that can’t be cleaned easily.

Undervolt Through Software

Undervolting reduces the voltage supplied to the CPU at a given frequency. Less voltage means less heat. ThrottleStop lets you adjust the voltage offset for the CPU core and cache. A typical safe undervolt for an Intel 8th-11th gen is -50mV to -100mV. For AMD (via Ryzen Controller), the range is -10 to -30mV. Every chip is different — start small, stress test for stability, and only keep the offset if the system does not crash.

Note: Intel locked undervolting on 12th-gen and newer CPUs unless you use a specific BIOS version or vendor tool. Check your laptop manufacturer’s support page before trying.

When You Must Open It: Cleaning, Repasting, and Thermal Pads

Software fixes can only go so far. If your laptop is two years old and never been opened, the thermal paste is probably dry and crumbly. The fan and heatsink fins are likely caked with dust.

Step 1: Clean the fan and heatsink. Remove the bottom panel, detach the fan connector (if possible), and use compressed air to blow out the dust. Avoid spinning the fan with air — hold it still or unplug it. A soft brush helps on stubborn clumps.

Step 2: Replace thermal paste on the CPU and GPU. This is the most impactful hardware fix for thermal throttling. After cleaning, apply a pea-sized dot of quality thermal paste (like Arctic MX-4 or Noctua NT-H1) to the CPU die and spread it thin. Reassemble. Good paste can drop temps by 5-15°C depending on the original state.

Step 3: Check thermal pads. VRMs (voltage regulators) and memory chips are often cooled with thermal pads. Over time, pads dry out and lose conductivity. If the VRM heatsink feels hot but the pad looks crusty, replace it with a fresh pad of the correct thickness (usually 1mm or 1.5mm). This is secondary to the CPU/GPU paste but matters for long-term stability.

Opening the laptop voids some warranties. If yours is still under coverage, consider warranty-friendly fixes first. For a guide on applying paste correctly, see how to apply thermal paste.

Advanced Fixes: Undervolting and Power Limit Tuning (With Caution)

This section is for experienced users who understand the risks. A bad undervolt can cause system instability, data loss, or in rare cases, hardware damage.

Undervolt deeper. After you find a stable voltage offset, you can also reduce the voltage for the GPU (if you have a discrete card) and the system agent. Use ThrottleStop’s FIVR window to adjust each domain separately. Keep offsets below -125mV for most Intel chips. For AMD, Ryzen Controller handles all voltage adjustments.

Raise power limits further. On gaming laptops, you can often push PL1 to 35W or higher without exceeding 90°C if the cooling system is good. Test with a multi-core benchmark like Cinebench R23 while monitoring temps. Stop if you see 95°C or throttling.

Consider liquid metal. This is risky — liquid metal is conductive and can short components if it spills. I only recommend it for desktops or laptops with a metal heatspreader and a lot of patience. The gain is 3-5°C over quality paste, but the risk of killing your motherboard is real.

One external source worth reading: I solved my laptop’s CPU throttling in under an hour — it covers a quick software-only route.

Benchmark Before and After — How to Measure Real Improvement

You need numbers to know if a fix worked. Run these before and after each step.

Test	What It Measures	Expected Improvement
CPU temperature under load (Cinebench R23 multi-core)	Peak and sustained temp	5-15°C drop after repaste, 2-5°C after elevation
Clock speed before throttling (HWInfo)	Sustained frequency during a 10-minute loop	100-400 MHz higher after throttling fix
FPS in a game (Unigine Heaven or real game)	GPU performance	5-20 FPS gain if GPU was throttling
Package power (ThrottleStop)	Watts drawn at sustained load	2-10W higher after raising PL1

Log the before values, apply one fix, run the same test, log after. If you see zero improvement, the fix did not address your specific bottleneck. Try a different fix.

Long-Term Strategy: A Maintenance Schedule That Prevents Throttling

Thermal throttling is not a one-time problem. It returns if you ignore maintenance. Set a calendar reminder for these intervals.

• Every 3 months: Blow compressed air through vents. Check for dust buildup. If you see it, cleanup schedule.
• Every 6 months: Open the laptop, clean fans, and inspect thermal paste. If paste looks dry or cracked, replace it.
• Every 12 months: Replace thermal pads on VRMs if present. Check fan bearings for noise or wobble. Replace fan if needed.
• As needed: If you move to a new environment (hotter room, dusty workshop), increase cleaning frequency.

One often ignored factor: room airflow matters. A laptop in a corner with no air circulation will heat up faster than one in an open space. Use a small desk fan blowing across the keyboard area. That can lower temps by 2-3°C.

Another overlooked detail: charging creates extra heat. If you are gaming or rendering, run on battery or use a lower wattage charger if your laptop supports USB-C power delivery at 45W instead of the 100W barrel charger.

Frequently Asked Questions

Can I undervolt an AMD laptop?

Yes, but the tools differ. Use Ryzen Controller (for most 4000, 5000 series) or the built-in BIOS voltage offset on some Lenovo and Asus models. For newer AMD chips (6000 series and later), undervolting is locked on many laptops. Check your model specific forum.

Does a cooling pad actually help?

Not all of them. A cooling pad with a single, small fan that lifts the laptop barely helps. A high-quality pad with two large 120mm fans that align with the laptop’s intake vents can drop temps by 3-6°C. It’s worth it if you cannot open the laptop or repaste. But for most cheap models, you get the same effect from a book under the back.

Will turning off Turbo Boost damage my CPU?

No. Running at base clock is safe. It reduces performance but also heat and power draw. Many ultrabooks operate at base clock most of the time. Disabling Turbo Boost just prevents the boost state. It is not harmful.

How do I know if throttling is caused by the CPU or GPU?

Run a test that stresses both: a game or a benchmark like 3DMark. Watch HWInfo for each component’s temperature and throttle flag. If the CPU hits 99°C and the GPU stays at 70°C, your CPU is the bottleneck. If the GPU hits 87°C and the CPU is at 75°C, the GPU is causing throttling. Some laptops share a heat pipe, so one hot component can throttle the other.

Is repasting worth it on a laptop less than a year old?

Usually not. Factory paste is still fresh. Try cleaning vents and raising power limits first. If you still see throttling, check if the laptop is under warranty first. Opening voids warranty on many brands. After the warranty expires, repaste.

What to Do Right Now

If you want to stop thermal throttling today, here is the shortest path that covers most scenarios:

• Run HWInfo or ThrottleStop to confirm throttling is happening.
• Elevate the laptop so air can move under it.
• Switch to High Performance power plan.
• Blow compressed air into the vents.
• If still throttling, disable Turbo Boost as a temporary fix.
• Plan a full cleaning and repaste within the next week if the laptop is older than two years.
• If you are on a budget and cannot open the laptop, a good cooling pad (with proper alignment) helps.

  For daily use laptops like the HP 15.6″ FHD Laptop 2026 Edition, these low-effort fixes will often be enough. The Intel N100 processor is a low-power chip; it rarely overheats in normal office or student tasks. But if you push it with many Chrome tabs and video calls simultaneously, the same principles apply.