Why is my laptop getting really hot and the fan is loud?
My laptop is 3 years old, and lately it's been getting crazy hot even just in the browser, the fan is screaming. What should I do?
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First thing to try is the simple method - open Task Manager and see which process is hogging the CPU and GPU. Sometimes that really saves you from taking the whole thing apart. But if everything looks clean there and your laptop is still getting hot even in the browser, then it's definitely the thermal paste and dust.
After three years of use, the heatsinks have definitely gotten clogged up with a layer of dust, and the thermal paste has dried out and stopped transferring heat from the chip properly. This gets fixed with a full cleaning - you need to take off the case, clean out the heatsinks with a soft brush or old toothbrush, wipe off the old paste with rubbing alcohol, and apply new paste. There are literally videos online for your exact laptop model showing all the steps.
The main thing to watch out for - some laptops are put together in a way that you can easily damage the ribbon cables and contacts during disassembly if you're not careful. Before you start, find a video guide specifically for your model and pay close attention to where everything plugs in. If you're worried about taking it apart yourself, you can take it to a service center, but that'll cost you. After cleaning and replacing the paste, you can also put your laptop on a cooling pad - that really does help keep the temps in check.
The radiators are 99% clogged with dust and the thermal paste has dried out. Cleaning + replacing the paste fixes it. If you haven't taken it apart in 3 years - it's time to do it.
Check the task manager too - maybe you caught a miner or Windows is indexing something in the background.
After cleaning, put the laptop on a cooling stand, it noticeably extends its lifespan
Three years without cleaning is a guaranteed recipe for clogged radiators and dried-out thermal paste, but before you take it apart, check the task manager to see if some process is constantly eating up resources (sometimes that saves you from having to disassemble it).
I agree that dust in the radiators is the main culprit, but don't rush to take your laptop apart right away. First try a simple approach: close all browser tabs, disable extensions, and check the task manager to see which process is eating up your CPU. Sometimes it's Windows updates, file indexing, or a background app that's just frozen. If you don't find anything suspicious and your laptop is still humming even on an empty desktop - that's when cleaning and replacing the thermal paste become necessary. After three years, dust has definitely built up, and it's not as complicated as it seems, especially if you find a video for your specific model.
Have you opened your laptop's case before, or is this your first time? Because everyone's right about the dust and thermal paste, but here's the thing - if you disassemble the laptop yourself, it's easy to damage the ribbon cables or break the latches, especially if it's not one of the simpler models. If you're confident in your skills, then yeah, cleaning plus thermal paste replacement usually works wonders, but if you're unsure, it's better to take it to a service center - you'll spend money once, but your laptop will run fine for another three or four years.
oleg.morozov asker
No, never opened it. I've got hands, but better not risk it - I'll take it to a service center, thanks for the advice.
When's the last time you took apart the laptop or brought it in for service? It's most likely dust and dried-out paste like others mentioned, but here's what matters: when you clean it, check not just the radiators but also the ventilation holes on the sides - they get clogged easier and faster than the internal parts. Sometimes it's enough to blow them out with a compressor from the outside, and the fan immediately gets quieter. After cleaning, try switching to maximum power saving in your power settings instead of balanced mode - you won't notice the difference in browsers, but the fan will spin less often.
I took it apart about a year and a half ago, there was dust in there. I'll try blowing it out with a compressor, thanks for the tip about the side vents - I didn't know they got clogged up that fast.
Most likely it's dust and dried-out paste - a three-year-old laptop without maintenance is pretty much a guarantee of this. But before you take it apart, quick check: open Task Manager (Ctrl+Shift+Esc), go to the "Processes" tab and sort by CPU and memory usage. Sometimes a background process or a Windows update eats up resources, and in that case taking it apart won't help.
If the processes look fine, you'll have to disassemble it. The radiators get clogged with dust, air stops circulating properly, and the fan starts running full throttle trying to cool down the overheating components. When you clean it, you'll definitely replace the thermal paste between the CPU and radiator - the old stuff really does dry out and loses its heat conductivity. It doesn't require special skills; YouTube has tons of teardowns for your exact model.
A lifehack after cleaning: if your laptop sits on a desk, put something under it with an air gap - even regular wooden blocks or crumpled foil help. The main thing is that the air intake vents don't get pressed against the surface. It's a simple thing, but it noticeably improves cooling without extra spending.
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