ThrottleStop 9.7.3
Beta
April 2nd, 2025
—
What’s New
-
1.7 MB
Win 11, 10, 8, 7 (32-bit & 64-bit)
ThrottleStop_9.7.3.zip
MD5:
F9332E61C312BF760D30C53A558741F6
SHA1:
4436CDA98CEA4A7B1DDA9E5C8DC173F3D420D27A
SHA256:
7B5E1A650A845CDAB200BD6A7766D8F56AE458F633A6F2F3DF5A9EC72847098A
ThrottleStop 9.7
Latest Stable
December 26th, 2024
—
What’s New
-
1.7 MB
Win 11, 10, 8, 7 (32-bit & 64-bit)
ThrottleStop_9.7.zip
MD5:
35D63FFB0F3FE7ECE63C829A65AB3FAB
SHA1:
AF906DBC7F51766DAEC145D101548D1B00F1E563
SHA256:
D83D3EDBD037A926D9319C6F4DB62F84657A39D47BD4FAE5FA26F692790E800D
Ever felt like your PC just isn’t as fast as it used to be, gets too hot, or turns off unexpectedly? Well, it might be because of something called CPU throttling. This guide will explain what CPU throttling is, why it happens, and how you can check if it’s actually throttling your processors on your Windows 11 PC.
Also see: How to Disable CPU Throttling (Settings) in Windows 11
What is CPU throttling?
CPU throttling, also known as dynamic frequency scaling, is a common practice that some operating systems, like Windows, use to save battery power and deal with overheating (especially for laptops). It slows down the CPU speed when you don’t need it to run fully, or if it’s getting too hot when it’s under heavy use. This is good for preventing damage to your CPU and other hardware parts and for prolonging your battery life, but too much throttling can make your PC significantly slower and less fun to use.
Learn more: Why is my CPU Overheating and How to Fix it
Testing CPU throttling in Windows 11
Checking if your CPU is actually getting throttled can be a bit tricky since you will need to make it work at its full capacity on purpose. We’ll use a free tool called Prime95 for this. It’s a favorite tool among users who often play with overclocking and stress testing their CPU. It can push your CPU to its limit, and that way you can see if it’s being throttled.
Useful tip: How to Limit CPU Usage of a Process in Windows 11
Step 1: Download and install Prime95
First, go to the official Prime95 download page at https://www.mersenne.org/download/. Pick the version that matches your system (32-bit or 64-bit), download it, unzip the file, and run the installer.
Step 2: Download and install HWMonitor
Next up, download HWMonitor from its official site https://www.cpuid.com/softwares/hwmonitor.html. This tool allows you to monitor how your PC is doing, like CPU temperatures and speeds.
After downloading HWMonitor, unzip it and install just like you did with Prime95.
Step 3: Start the CPU stress test
With both programs set up, proceed to the following steps:
- Launch Prime95.
- Hit “Options” in the menu, then “Torture Test…” to pop open a new window.
- Pick the “Blend” test to stress both your CPU and RAM.
- Press “OK” to get started. This will max out your CPU.
Step 4: Monitor CPU performance
Open HWMonitor while Prime95 does its thing. Look under the processor section for the “Core #” sensors. Here, you can watch the clock speeds and temperatures for each core.
Keep an eye on how your CPU handles the stress. If it starts slowing down because it’s getting too hot, that’s CPU throttling in action.
Linked issue: Game Lag When Watching YouTube or Twitch on Chrome
How to interpret the results
If you see your CPU’s speed drop a lot under heavy use and the temperature’s too high, it means it’s throttling. Throttling is normal when the CPU gets too hot, but if it happens at cooler temperatures, you might need a better cooling system or to tweak some settings.
NOTE: Prime95 puts more strain on your CPU than most things you’ll do. If throttling only happens during this test and not when you’re just using your computer normally, it’s probably fine. But if you notice throttling during regular use, it’s time to check out the fixes we talked about.
Recommended guide: 30+ Windows 11 Services to Disable for Better Gaming Performance
Testing CPU throttling for individual processes in Windows 11
Windows 11 has an amazing feature for checking how individual programs are handled, called Power Throttling. It’s about balancing performance and power use, especially on battery, by controlling how much resources background apps can use.
Enabling the Power Throttling column
Here’s how to see what’s being power throttled:
- Press Ctrl + Shift + Esc together to open Task Manager. Or, right-click the taskbar and pick “Task Manager”.
- If Task Manager is in the simple view, click the “More details” button to see everything.
- Go to the “Details” tab for a full list of processes.
- Right-click on the column titles (like Name, CPU, Memory) and choose “Select Columns”.
- Tick “Power Throttling” to add it to your columns.
Monitoring CPU throttling for each process
With the Power Throttling column up, you can now see which processes are getting throttled. You’ll find two possible statuses:
- Enabled: This means Windows is watching this process closely. It might reduce its resource use to save power or lessen strain on the system.
- Disabled: This shows that the process isn’t being held back and can use resources freely.
Seeing a process marked as power throttled, especially under a heavy load, indicates that your CPU might be scaling back to manage power use and avoid overheating.
Related resource: How to Set Process CPU Affinity or Priority Permanently in Windows 11/10
What have we learned so far?
Although not desired, CPU throttling is actually necessary for stopping your hardware from getting damaged or too hot. But you might want to make sure it only kicks in when absolutely necessary. Running stress tests in Windows 11 can give you some clues as to whether your CPU is actually being throttled and why it might be happening.
Also, you can use the “Power Throttling” feature in Task Manager to see which apps are being scaled back to save energy. One thing you should know is that power throttling is about saving battery, while CPU throttling is to prevent overheating.
Recent processors all have the ability to adjust the operating frequency to either decrease power consumption or make sure the processor does not overheat. That’s why for example Intel processors have a maximum junction temperature (Tj max) so that if this temperature is reached the processor can slow down (throttle) to cool things off and avoid damaging itself. That also explains why computers with the same processor, storage, and memory may have greatly different performance under load depending on their thermal design.
I’m currently testing a fanless mini PC with an Intel Celeron N3150 Braswell processor, and yesterday I noticed the frequency would be stuck at 0.22 GHZ (yes, that’s 220 MHz) at all times, even when starting the web browser and loading long web pages. It was very slow, and I had a few “windows not responding” in the process.
I checked the metal box temperature with an IR thermometer and got 46 C, which did not seem that high. I had added some black tape a few hours ago, or the case was a bit reflective leading to lower temperature measurements.
Nevertheless it was late, so I started the computer again the following day, and it was responsive, with an even higher SSD read speed than last night (~400MB/s). So I launched the 3DMark benchmark, and the results were disappointing, to say the least, as they were much lower than the scores I got with the MeLE PCG01 Atom Z3735F Bay Trail mini PC. I’m a Linux user, and I’m not that familiar with Windows, so after some Google, I found that HWiNFO Windows program would do the job of checking out the temperature and CPU throttling.
Once you start the application, select “Sensors-only” and click “Run”.
The program gave me the confirmation that all four cores of the processor were severely overheating and subject to thermal throttling.
MINIX NGC-1 is the computer with this behavior, but luckily it is not shipping to end-users yet, only to reviewers, so hopefully, the company can find a solution before launching the products. It’s also possible I received a defective sample, and we’ll have to see what the few other bloggers with the device will experience. My room temperature is 24 to 30 C during the day, so it could have an impact too, but normally products are tested in ovens at set temperatures. Anyway, it will be interesting to find out how this gets resolved.
I’m obviously postponing the review, since when CPU throttling kicks in, the Windows mini PC’s performance and user experience are about equivalent to the ones of the Raspberry Pi model 1 when it was released in 2012…
Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011.
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- Home
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- Check cpu throttling windows 10
A Windows 10 system has different mechanisms in place to keep the system running cool. If a system overheats, it will either shut down, or it will take preventive measures to reduce the temperature.
One component that tends to heat up and can subsequently be damaged from high temperatures is the CPU. On Windows 10, if the CPU heats up too much, or the temperature in the chassis builds up to the point that it is dangerous for hardware, the system will either shut down or it will throttle the CPU’s power to reduce the temperature.
CPU throttling to reduce temperature
The more intensely a CPU works i.e., the more processes it runs at the same time, the more power it uses, and the hotter it runs. A CPU can get hot to a certain extent but if it heats up beyond a certain point, it needs to cool down one way or the other to prevent permanent damage to the hardware.
Windows 10 will normally throttle power to the CPU if it’s heating up. This of course means that tasks will take more time to complete, your system may freeze, and everything will be slow.
If you suspect the CPU is being throttled, you can check it by keeping an eye on the CPU usage. On Windows 10, you can do this with the Resource Monitor tool, or you can use a third-party CPU monitoring tool for the job.
CPU Throttling – Resource Monitor
- Tap the Win+R keyboard shortcut to open the run box.
- In the run box, enter:
perfmon.exe /resand tap the Enter key. - Use your system like you normally do.
- The Maximum Frequency value shows the current power consumption by the CPU.
- If the value does not go beyond a certain point, it means the CPU is being throttled.
CPU Throttling HWiNFO
CPU throttling happens when the CPU overheats. If your system is cool, the CPU will run to its maximum capacity without being throttled so what you really want to check is its temperature.
If a CPU is overheating, then it is going to be throttled.
- Download a free app called HWiNFO, and run it.
- Select ‘Sensors Only’ and click Run.
- Scroll down to DTS section for your processor.
- Take note of the temperatures; if the CPU is too hot, the app will highlight the temperature in red.
- If the CPU is running too hot, it will be throttled.
Prevent CPU throttling
You can prevent CPU throttling by keeping your system cool. There is no way to turn it off, and even if there were, we would not recommend using it.
- Keep your system in a well-ventilated area and make sure air can flow in and out.
- Apply thermal paste or add a fan to keep it cool.
- Make sure the chassis is clean i.e., there’s no dust build-up.
- Make sure the fans are working properly.
- Your CPU may be throttled on battery power so try to stay connected to a power source.
- Avoid overclocking the CPU.
Your CPU may overheat due to hardware problems as well. If you suspect a hardware component might be the cause of it, have it checked. Some users have reported that disabling Intel SpeedStep in their BIOS has fixed a CPU that overheats.
Fatima Wahab
Fatima has been writing for AddictiveTips for six years. She began as a junior writer and has been working as the Editor in Chief since 2014.
Fatima gets an adrenaline rush from figuring out how technology works, and how to manipulate it. A well-designed app, something that solves a common everyday problem and looks
CPU Stress Test (CST)
для Windows
CPU Stress Test (CST) — небольшая портативная утилита, которая предназначена для проверки процессора в экстремальных условиях, путем нагрузки его SSE командами (используется алгоритм трансформации матриц). С помощью программы можно определить стабильность ЦП, отсутствие ошибок в работе канала процессор-память, провести тестирование эффективности системы охлаждения и подсистемы питания процессора, а также опытным путем найти предел разгона.
Программа включает в себя три теста, которые выполняются последовательно. Для каждого теста можно выбирать свой размер матрицы, количество вычислений и количество повторений теста на один проход. Все настройки осуществляются через файл cst.ini.
ТОП-сегодня раздела «Диагностика, тесты»
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Отзывы о программе CPU Stress Test (CST)
Guru888 про CPU Stress Test (CST) 0.18b [02-06-2020]
Странная прога, первый раз прошла тест все 10 циклов, второй раз прогнал видала ошибку
5 | 14 | Ответить
Алексей про CPU Stress Test (CST) 0.18b [17-06-2018]
4 ядра АМD на 100 % грузит. Норм прога.
12 | 11 | Ответить
Игорь про CPU Stress Test (CST) 0.18b [25-03-2016]
двух ядерный атлон. грузится только одно правое (в диспетчере) ядро
13 | 8 | Ответить
fox про CPU Stress Test (CST) 0.18b [02-08-2015]
одноядерный процессор с двумя потоками. нагружает только один до 100проц а второй на 0
10 | 11 | Ответить
Iskander про CPU Stress Test (CST) 0.18b [26-12-2012]
Тестил этой прогой ноут после замены кулера, прога со своей задачей справляется отлично. Выжимает с проца все)
16 | 28 | Ответить