One user reported their frame rate fell from 90fps to 35fps in less than four minutes, even before they hit the heavy sections of the game. Simply browsing the menus was enough to tank their frame rate.
I came to realise my laptop wasn’t having any trouble with the game. It was just overheating so rapidly, it was throttling almost straight away to keep itself safe when things got serious.
I wasted months assuming this was the norm for all ‘gaming laptops’. Loud, hot, inconsistent. Turns out it was largely incorrect, and after fixing the real problem, my laptop hasn’t been falling to pieces the second it gets hot.
Why Gaming Laptops Throttle So Aggressively
Thermal throttling is when your CPU or GPU gets too hot and it adjusts the clock speed downward in order to lower the temperature. It’s not a bug – it’s a feature, but it becomes a huge problem when it occurs too early.
While you’ll find this all over the place in a desktop PC, laptops are particularly susceptible to it as virtually all of this is piled into a very thin case with very little airflow, small cooling fans, and heat pipes that can only remove so much heat before the bottleneck hits.
The thing that’s irritating is that a laptop that throttles in less than a few minutes generally isn’t a symptom of a failed computer. It’s almost always a symptom of something else that is preventing the CPU from getting rid of heat, which can be remedied.
The Assumption I Thought Was True
I bought into the lie that my laptop was just underpowered and simply couldn’t play for more than 2 minutes without crumbling under pressure, spent months and a few hundred bucks shopping for something better, before finally opening it up.
What I noticed was shocking. The dust was so thick by the intake fan it looked like a light gray blanket over the vents. It wasn’t my lappy was underpowered. It was choking.
Step-by-Step: What Actually Fixed My Throttling Problem
Step 1: Monitor Your Temperatures Properly First
You actually need real data and not guesses before you change anything. I pulled some data with HWMonitor and tested it out while gaming to see real CPU and GPU temperatures.
My CPU was thermaling up to 95-97C within minutes of gaming, right on the edge of a thermal shutdown on most other laptop CPUs. That alone told me that this wasn’t a small deal.
Step 2: Clean Out The Dust (This Fixed Most Of My Problem)
I took off the back of my laptop. I had a little screw driver set and everything I just showed. Dust had blocked the entire fan intake and heatsink fins.
I also used a can of compressed air to blow dust out of the intake vents and heat sink inside directly through the fan, while holding the blades with a toothpick, as they tend to spin very fast during cleaning.
And even after having cleaned it, my idle temps decreased almost 15C before I even began to game at all. That’s how much difference a little extra dirt can make.
Step 3: Re-apply Thermal Paste if Your Laptop Is Old
I was definitely scared of this step the first time I did it, but it was honestly one of the biggest and most worthwhile improvements I’ve made. This is a special kind of paste that is placed between your CPU/GPU and the heat sink to transfer heat away. It will dry out over time and be way less efficient after 2-3 years.
I applied Arctic MX-4, a popular and cheap thermal paste, after cleaning off old dried out paste with isopropyl alcohol and a microfiber cloth. After which I applied a small “pea” of it onto each of the CPU and GPU dies before re-assembling everything.
CPU temps while under load went from that dangerous 95-97C to a much more manageable 75-80C with this step alone. To be honest, that was even more of a difference than I thought I’d get for the total cost of one trip to a convenience store.
Step 4: Raise Your Laptop Up to Improve Airflow
This sounds like it shouldn’t be important, but it actually really is. If you game right on a bed, blanket, or just a flat surface like a desk, the air intake on most laptops is blocked from sucking in air.
I then began using a very simple laptop stand that slightly tilted the back, and along with a basic cooling pad that has small fans built in, my sustained temps even got better; particularly when gaming for extended periods of time.
Step 5: Review And Modify Your Power Configuration
There is a “Balanced” power plan for Windows by default. This can lead to irregular and spurts of heat around the time when your CPU switches from one Power State to another.
Open Control Panel then under Power Options I put it to “High Performance” while plugged in. I’m not sure but strange as it sounds this actually made the temperatures more consistent rather than the aggressive spikes I was getting earlier.
Step 6: Use Software From the Manufacturer to Manage Fan Curves
Most gaming laptop brands offer their own control software, such as ASUS Armoury Crate, MSI Center, or Lenovo Vantage. You can often manually tweak the fan curves on these to run more aggressively under load instead of defaulting to quieter GPU and CPU settings that don’t always prioritize cooling.
I was using the “Performance” fan profile mode when gaming and even though it was much louder, I didn’t notice any temperatures creep up significantly like they did with the other profiling when I was gaming for a prolonged amount of time.
Step 7: Undervolt Your CPU, If Your Laptop Allows It
This one is a little more involved, but totally worth it for me. I used a program like Intel XTU (for Intel CPUs) or Ryzen Master (for AMD CPUs) to decrease my CPU voltage just a touch, which decreased the amount of heat the CPU was outputting with little to no impact on performance.
I did this very delicately, using a similar method of small changes and stress testing after each adjustment, as you would with an undervolting GPU. There is no rush to do this, and I would suggest doing some research into your specific CPU model before adjusting this.
Step 8: Verify No Software Conflicting and Causing Extraneous Load
Other times the causes of your throttling are not related to the heat – background processes, corrupted game files, and software conflicts can all draw more power than they should and cause your hardware to overheat.
And if your game is also randomly crashing while you’re overheating, that’s a related problem that you’ll want to tackle separately. I was dealing with both at the same time, and I ended up finding a lot of useful troubleshooting tips in How to Fix Common Game Crashes, which are more software issues that can aggravate a thermal issue.
My Actual Results After Fixing Everything
Prior to any of this, within 3-5 min of gaming my laptop would slow down so much, frame rates would drop like crazy, and longer gaming sessions would be a pain.
Now that I’ve wiped the dust, reapplied thermal paste, lifted the laptop, and tweaked the fan curves (through my manufacturer’s software), I can play for well over an hour with stable temps hovering around 78-82C (under load). That’s a totally different experience from where I started. You can also read:
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Common Misconception
- If you assume the laptop is just bad or slow. This was the assumption I was making for months before I actually did any research. 90% of throttling problems can be fixed without any repairs.
- Never actually opened the laptop up to see dust accumulation. This was actually the single biggest thing for me, and I know a lot of people don’t think to do this.
- Busting on older laptops: No thermal paste lasts forever. This is assuming they don’t dry out entirely after only 12-24 months of steady use.
- Playing on soft surfaces such as beds or blankets. This effectively block the bottom intake airflow and worsens throttling.
- Under-Volting too harshly without testing: It is possible to unstable your CPU just as GPU’s if you apply over voltages. You can achieve the same result with small, incremental changes.
All In All
Even a gaming laptop that can’t keep its cool isn’t something you have to grin and bear. For me it was due to accumulated years’ worth of dust and thermal paste that had long ago ceased to be effective.
I really do wish I’d taken off my laptop for a look inside early on, because the issue was so simple that it only cost less than a good meal to fix, and I’d been thinking it was a hardware problem for months.
If your laptop’s throttling fast, don’t write it off just yet. Test your temps, blow the dust out, and go through this list step by step before doing anything more drastic.
If you want to see your own manufacturers’ own tutorial on removing your laptop and cleaning all the interior components (and they do provide such, be it ASUS, Lenovo, Dell, HP or whatever each offering their own tech … it’s worth seeing before you jump down and do all the hardware cleaning steps on your own.
