Laptop overheating is a problem that every second user faces. Even new models ASUS ROG, Lenovo Legion or budget Acer Aspire can reach critical temperatures 90-100°C under load, leading to throttling (automatic performance degradation), sudden shutdowns, or even component damage. But the device itself is not always to blame: often the reasons lie in improper operation, dusty radiators or outdated software.

In this article we will analyze concrete steps - from basic (dust removal) to advanced (CPU undervolting). All methods have been tested on laptops with Intel Core i5/i7/i9 And AMD Ryzen 5/7/9, as well as hybrid graphics NVIDIA/AMD + Intel Iris Xe. You'll learn how to diagnose the problem, what programs to use to monitor temperatures, and when it's time to take the device in for service. A temperature reduction of 15-30°C is possible even without disassembling the case - the main thing is to act systematically.

1. How to check the temperature of a laptop: programs and standards

Before taking action, you need to understand how critical overheating is. Normal temperatures for a laptop:

  • 🌡️ In idle time (browser, office programs): 35-55°C (CPU), 40-60°C (GPU).
  • 🎮 Under load (games, rendering): up to 85°C for CPU, up to 80-85°C for GPU. The limit for most processors is 100°C (then an emergency shutdown occurs).
  • ⚠️ Critical: if the temperature stays higher 90°C more than 10 minutes - urgent action is needed.

For monitoring, use these programs (all free):

Program Platform Features
HWMonitor Windows Shows CPU, GPU, disk temperatures, voltage and fan speed.
Core Temp Windows Specializes in processors Intel/AMD, shows the load by core.
MSI Afterburner Windows Ideal for gamers: GPU monitoring, overclocking, cooler tuning.
iStat Menus macOS Displays temperature on menu bar, supports Apple Silicon (M1/M2).
sensors (package lm-sensors) Linux Console utility that shows data from sensors. Installation: 
sudo apt install lm-sensors

Important: temperatures may differ even between identical laptop models. For example, Lenovo ThinkPad T14 with Ryzen 7 5850U in the corporate assembly it heats up less than in the retail one - due to different cooling systems. If your laptop constantly operates within the thermal package limits (for example, Intel i9-12900HK with TDP 45W+), overheating is almost inevitable without additional measures.

📊 How often do you check your laptop's temperature?
  • Never
  • Only when the lags start
  • Regularly (once a month)
  • I constantly monitor

2. Cleaning dust: step-by-step instructions without analysis

Dust is the main cause of overheating in 70% of cases. It accumulates on radiators, fan blades and heat pipes, impairing heat dissipation. You can clean it yourself without completely disassembling the laptop.

You will need:

  • 🧹 Compressed air cylinder (for example, Kontakt Chemistry or WD-40 Specialist).
  • 🔧 Screwdriver (if you need to remove the bottom cover).
  • 🧴 Cotton swabs and alcohol (for cleaning fan blades).
  • 😷 Respirator or mask (dust is harmful to the respiratory tract!).

Step by step steps:

  1. Turn off the laptop and disconnect the battery (if it is removable).
  2. Turn the unit over and locate the ventilation grilles (usually on the side or bottom).
  3. Use a compressed air cylinder to blow through the grates using short pulses (not a continuous stream!). Keep the can upright to prevent liquid from leaking.
  4. If there is a lot of dust, carefully rotate the fan blades with your finger (they may be blocked by dirt).
  5. For hard-to-reach places, use a cotton swab dipped in alcohol.

Turned off the laptop and disconnected the power|

Blown out the ventilation grilles with compressed air|

Checked the rotation of the fan blades|

Cleaned the grates from visible dust with a cotton swab|

Let the laptop sit for 10 minutes before turning it on -->

Warning: do not use a vacuum cleaner! It creates static electricity, which can damage components. Also avoid metal objects - they can short out the contacts on the board.

💡

If after cleaning the fan noise does not decrease, the thermal paste may need to be replaced or the cooling system needs to be repaired.

3. Optimizing the cooling system: BIOS and Windows settings

Even a clean laptop can overheat due to incorrect power settings. Manufacturers often raise TDP (thermal power) limits in the BIOS to improve performance at the expense of temperatures. This can be fixed indiscriminately.

Settings in BIOS/UEFI:

  1. Reboot the laptop and go into the BIOS (usually the F2, Del or Esc when turned on).
  2. Find a section Advanced → Thermal Configuration (name may vary).
  3. Check the parameters:
    • Fan Control - set to Smart Fan or Always On.
    • CPU TDP - if possible, reduce from 45W to 35W (for Intel H-series or AMD HS series).
    • Thermal Throttling - turn on to avoid overheating.
  • Save the settings (F10) and reboot.

    • Settings in Windows:

    • 🔋 Switch to power plan Balanced or Energy Saving (in Control Panel → Power Options). Mode High performance increases heating by 10-15°C.
    • 🛠️ Disable unnecessary background processes: open Task Manager (Ctrl+Shift+Esc), sort by CPU load and terminate unnecessary tasks (for example, Microsoft Edge in the background or NVIDIA Container).
    • 🎮 For gamers: in NVIDIA Control Panel or AMD Adrenalin set FPS limit (eg 60 fps instead of 144+) - this will reduce the load on the GPU.
    How to disable Turbo Boost to reduce temperatures

    On Windows, open Control Panel → Power Options → Change advanced power settings. Find a section CPU Power Management → Maximum CPU State and set the value 90% (or lower) for modes On battery And From the network. This will turn off Turbo Boost, reducing the temperature by 10-20°C, but will reduce performance in resource-intensive tasks.

    For macOS: use the utility Turbo Boost Switcher (for Intel Mac) or Macs Fan Control for manually setting the fan speed. On Apple Silicon (M1/M2) overheating is less common, but can occur when rendering in Final Cut Pro or code compilation.

    4. CPU undervolting: lowering the temperature without losing performance

    Undervolting - this is a reduction in processor voltage without changing the clock frequency. The method works on Intel (6th generation and newer) and AMD Ryzen (2000 series and above), allowing you to reduce heat by 5-15°C without a noticeable drop in FPS or speed.

    Instructions for Intel (using ThrottleStop):

    1. Download ThrottleStop from the official website TechPowerUp.
    2. Launch the program and click FIVR.
    3. In the section CPU Core And CPU Cache reduce the voltage by 50-100 mV (for example, with 1.250V to 1.150V).
    4. Click Apply, then test stability in AIDA64 or Prime95 (10-15 minutes).
    5. If the laptop does not turn off and does not display errors, save the profile (Save).

    Instructions for AMD (using Ryzen Controller):

    • Install Ryzen Controller from GitHub.
    • In the section Power reduce CPU Voltage Offset on 25-50 mV.
    • Turn on Eco Mode (if available) - this will limit the TDP to 35W.
    • Test in Cinebench R23 — if the result does not drop by more than 5%, the settings are optimal.
    ⚠️ Attention: Undervolting can cause unstable operation if the voltage is reduced too much. Always test changes under load and monitor temperatures. On some laptops (eg Dell XPS with Intel 12th generation) undervolting is blocked at the BIOS level.
    💡

    Undervolting is the most effective way to reduce temperatures without loss of performance, but requires caution and testing.

    5. Replacing thermal paste and thermal pads: when and how to do it

    Thermal paste dries out over time, losing thermal conductivity. If your laptop is older than 2-3 years, replacing it can reduce the temperature by 10-20°C. Also check the thermal pads on the VRM and GPU chips - they often dry out and crumble.

    When replacement is needed:

    • 🔥 Idle temperature exceeds 60°C.
    • 📉 Productivity drops after 5-10 minutes of work (throttling).
    • 🔊 Fans work at maximum even at low load.
    • 🕰️ The thermal paste has not changed for more than 2 years.

    Which thermal paste to choose:

    Thermal paste Thermal conductivity (W/mK) Features Price (for 1g)
    Arctic MX-6 11 Universal, non-conductive, service life 8 years. ~300 rub.
    Noctua NT-H2 8.9 Easy to apply, no break-in required. ~400 rub.
    Thermal Grizzly Kryonaut 12.5 High thermal conductivity, but dries out in 1-2 years. ~600 rub.
    Coollaboratory Liquid Ultra 38 Liquid metal, requires experience (conducts current!). ~1500 rub.

    How to replace thermal paste:

    1. Turn off the laptop, remove the battery and bottom cover (for instructions for your model, see YouTube or iFixit).
    2. Carefully remove the cooling system (you may need to disconnect the cables).
    3. Remove old paste with a cloth soaked in isopropyl alcohol (90%+).
    4. Apply a thin layer of new paste (about the size of a grain of rice for CPU, slightly larger for GPU).
    5. Reassemble the laptop in reverse order, making sure that all fasteners are tightened evenly (distortions will lead to poor contact!).
    ⚠️ Attention: when disassembling a laptop Apple MacBook (especially with chips M1/M2) or Microsoft Surface be extremely careful - their cases are glued together, and to open them you need a special tool (for example, iFixit Pro Tech Toolkit). Errors during assembly can lead to loss of seal and damage to the display.

    6. External cooling: racks, stands and coolers

    If internal measures do not help, external accessories can reduce the temperature by 5-10°C. Especially relevant for thin ultrabooks (MacBook Air, Dell XPS 13), where the cooling system is weak by default.

    Top 5 Cooling Accessories:

    • 💨 Stand with coolers: Cooler Master NotePal X3 (3 fans, speed control). Price: ~2500 rub.
    • 🖥️ Active cooling rack: IETS GT500 (supports laptops up to 17", USB powered). Price: ~3500 rub.
    • ❄️ Cooling pad: Tree New Bee (5 quiet fans, backlight). Price: ~1800 rub.
    • 🔋 USB cooler: Zalman ZM-NC3000 (powerful airflow, suitable for gaming laptops). Price: ~2200 rub.
    • 🧊 Passive cooling: aluminum stand (eg Rain Design mStand) - raises the laptop for better air circulation. Price: ~4000 rub.

    How to choose:

    • For office tasks (documents, browser) a passive stand will suffice.
    • For games or rendering you need an active cooler with 2-3 fans (blowing speed from 1000 RPM).
    • For MacBook (especially M1 Pro/Max) will do Twelve South Curve — it improves air flow without noise.

    Advice: If you are using an external cooler, place the laptop so that the ventilation holes are not blocked. For example, on ASUS TUF Gaming The grilles are located on the side - they cannot be covered with a stand.

    7. Software methods: limiting FPS, disabling Turbo Boost, etc.

    If hardware methods do not help, you can optimize the load at the software level. This is especially true for gamers and video/3D users.

    Ways to reduce the load:

    • 🎮 FPS Limit: in games through NVIDIA Reflex or Radeon Chill set a limit 60 FPS (or 120 FPS, if the monitor supports). This will reduce the load on the GPU by 20-30%.
    • 🖥️ Disabling background processes: in Steam disable automatic game updates Discord - hardware acceleration (Settings → Voice and video → Hardware acceleration).
    • ⚡ Undervolting GPU: for cards NVIDIA use MSI Afterburner (reduce Core Voltage on 50-100 mV), for AMD — MorePowerTool.
    • 🔄 Switch to integrated graphics: in NVIDIA Control Panel for undemanding programs (for example, Photoshop) select Integrated Graphics instead of High performance NVIDIA processor.

    For Linux: use tlp for power management. Installation:

    sudo apt install tlp tlp-rdw

    sudo systemctl enable tlp

    Then edit the config (/etc/tlp.conf), adding:

    CPU_SCALING_GOVERNOR_ON_AC=powersave

    CPU_SCALING_GOVERNOR_ON_BAT=powersave

    For macOS: disable unnecessary visual effects:

    defaults write NSGlobalDomain NSWindowResizeTime -float 0.001

    defaults write NSGlobalDomain NSAutomaticWindowAnimationsEnabled -bool false

    8. When to contact service: signs of serious problems

    If all of the above methods do not help, the problem may be hardware. Here are signs that your laptop needs professional repair:

    • 🔥CPU temperature exceeds 100°C in idle time.
    • 🔊 The fans are running at maximum, but the air is not blowing out (jammed cooler).
    • 💥 The laptop turns off 1-2 minutes after turning it on (thermal protection is triggered).
    • 🔋 The battery is swollen or discharges quickly (may put pressure on the cooling system).
    • 🛠️ Darkened or swollen capacitors are visible on the motherboard (especially near the VRM).

    What the service can do:

    • Replace thermal pads on the GPU and VRM chips.
    • Resolder the north/south bridge (relevant for older laptops with Intel HM55/65).
    • Install a new cooling system (for example, copper radiators instead of aluminum).
    • Flash a modified BIOS with improved fan settings.

    Repair cost:

    Service Price (RUB) Deadline
    Cleaning + replacing thermal paste 1500-3000 1 day
    Fan replacement 2000-5000 1-2 days
    Cooling system repair (replacement of radiator/heat pipes) 4000-8000 3-5 days
    Resoldering of chips (VRM, GPU) 6000-15000 5-7 days
    ⚠️ Attention: If the laptop is under warranty, do not open it yourself - this will void the warranty. Contact an authorized service center (for example, HP this is HP Support, for Apple — Apple Authorized Service Provider).

    FAQ: Frequently asked questions about laptop overheating

    ❓ Why does the new laptop heat up more than the old one?

    Modern processors (Intel 12-13 generation, AMD Ryzen 6000/7000) have high transistor density and TDP up to 45W+ in ultralight cases. Manufacturers sacrifice cooling for thinness. For example, MacBook Pro M2 It gets hot due to the compact cooling system, despite the high energy efficiency of the chip.

    ❓ Can I use a laptop on a soft surface (for example, on a bed)?

    No! Soft surfaces block the ventilation openings, causing overheating. Use a rigid stand or a special cooling tray. If you have to work on your bed, place your laptop on hard book or lap desk (For example, Havit HV-F2056).

    ❓ Do “cooling stickers” for laptops help?

    Stickers with gel filler (for example, Cooler Master NotePal U Stand) have a minimal effect - they reduce the temperature by 2-3°C. They are more suitable for passive cooling of ultrabooks (MacBook Air, Surface Laptop), but will not replace a full-fledged cooler for gaming models.

    ❓ Why does the laptop heat up even in BIOS?

    If overheating occurs in the BIOS, the problem hardware room:

    • Dried thermal paste.
    • Faulty fan (check blade rotation).
    • Damaged temperature sensor (service diagnostics required).

    In this case, cleaning and replacing the thermal paste is the first step.

    ❓ How to reduce the temperature of a laptop in games without losing FPS?

    Combination of methods:

    1. Limit FPS to 90-120 (via RTSS or NVIDIA Reflex).
    2. Reduce GPU voltage by 50-100 mV in MSI Afterburner.
    3. Turn on V-Sync or G-Syncto reduce the load.
    4. Use an external cooler (eg IETS GT500).

    This can give an increase in 5-10 FPS by reducing throttling.