laptop cpu overheating issue
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How to Repair Laptop CPU Overheating Issues Quickly

If your laptop sounds like a jet engine every time you boot up Cyberpunk 2077, or if it randomly powers off mid session, you’re likely dealing with one thing: overheating. And for CPU intensive tasks like gaming, rendering, or even just having too many Chrome tabs open CPU overheating is one of the most common issues affecting performance and stability.

This guide breaks down what causes overheating in laptops, how to identify it, and what real solutions you can apply especially if you’ve already tried the basics like cleaning vents. But If you need professional help, Volta PC Upgrade & Repair is always here for you.

 

How to Tell If Your Laptop CPU Is Overheating

Laptops aren’t great at handling sustained thermal loads. That’s just the nature of compact form factors. So when you start noticing:

  • Sudden shutdowns during high load tasks
  • CPU clock speed dropping below base frequency
  • Loud fan noise, or fans spinning at 100% constantly
  • Surface temperatures reaching uncomfortable levels
  • Visible FPS drops during gameplay or thermal throttling

…it’s probably overheating, not just “a little warm.”

If you want to confirm it, install tools like HWiNFO64, Core Temp, or MSI Afterburner. Monitor your CPU package temperature during load. If you’re hitting 95°C or higher consistently, you’ve got a serious overheating issue.


The Main Causes of Laptop CPU Overheating

1. Dust Choked Vents and Fans

The no. 1 cause of overheating is airflow restriction. Dust collects in your cooling fins, fans, and exhaust vents over time, essentially insulating your CPU from its only method of heat escape.

2. Old or Poor Thermal Paste

Thermal paste degrades, dries out, or spreads unevenly. When that happens, heat from the CPU die doesn’t transfer efficiently to the heatsink. Even on newer laptops, stock paste can be low quality and may contribute to overheating under sustained loads.

3. Aggressive Turbo Boosting

Modern CPUs aggressively boost to higher frequencies and voltages. If cooling isn’t tuned accordingly (and it rarely is on factory settings), this behavior contributes heavily to overheating.

4. BIOS or Driver Level Mismanagement

Faulty fan curve control, EC firmware bugs, or outdated BIOS versions can interfere with temperature regulation leading to inconsistent fan speeds and, you guessed it, overheating.

5. Poor Ambient Conditions

Using your laptop in a warm room, on a bed, or in direct sunlight compounds internal overheating. The higher the ambient temperature, the harder it is for the heatsink and fans to dissipate heat effectively.


Fixing Laptop CPU Overheating Like a Technician Would

If you’re comfortable opening up your system and using monitoring tools, here are proven, high impact fixes that can drop temperatures by 10-20°C.

1. Repaste the CPU with High Performance Thermal Paste

Remove the heatsink, clean the old paste with isopropyl alcohol (90%+), and reapply a high quality paste like Thermal Grizzly Kryonaut, Arctic MX-6, or Noctua NT-H2. This is hands-down one of the best ways to fix chronic overheating.

2. Clean the Cooling System

Disassemble your laptop, use compressed air to blow out dust from fans and heatsinks. Be thorough, dust hidden deep inside the cooling fins causes major overheating that a surface clean won’t solve.

3. Flash the BIOS and Update EC Firmware

Manufacturers occasionally release firmware updates that tweak fan curves or thermal policies. Flash the BIOS and embedded controller (EC) firmware to the latest version, it could fix overheating without any hardware changes.

4. Control Turbo Boost and Power Limits

Use tools like Throttlestop (Intel) or Ryzen Controller (AMD) to set power limits or disable boost entirely. A minor sacrifice in performance can drastically reduce overheating and extend hardware longevity.

5. Undervolt Your CPU

Lowering your CPU’s voltage by 50–100 mV can significantly reduce heat output with no performance loss. If you’re seeing consistent overheating, undervolting should be one of your first software-level interventions.


Stress Testing After Fixes: Confirm You Solved Overheating

Once you’ve applied these solutions, run a battery of stress tests:

  • Cinebench R23 (10 min loop) to push the CPU
  • Prime95 (blend test) for extreme thermal loads
  • HWiNFO64 or HWMonitor to track temps, clock speeds, and thermal throttling flags

If your CPU maintains clock speed without throttling and temps stay below 85°C under full load, your overheating problem is likely solved.


Long Term Overheating Prevention Tips

Even after resolving it, overheating can return if you don’t manage your system proactively. Here’s how to prevent it:

  • Clean your fans and vents every 3-6 months
  • Use a cooling pad for extended gaming or rendering sessions
  • Don’t game on battery power profiles will throttle performance and raise temps
  • Elevate the rear of the laptop slightly for better airflow
  • Monitor temps periodically and reapply paste every 1-2 years

When to Get Help: Volta PC Upgrade & Repair

If repasting, undervolting, or flashing firmware feels too risky or if your laptop is still overheating even after basic maintenance, it might be time for professional help.

At Volta PC Upgrade & Repair, our technicians specialize in:

  • High efficiency thermal repasting
  • Fan diagnostics and replacement
  • BIOS tuning and firmware updates
  • Full internal dust cleanings
  • Overheating diagnosis and stability testing

We handle everything from casual gaming rigs to high performance mobile workstations.

Don’t let overheating throttle your hardware. Book a free diagnosis at Volta PC and we will get your thermals under control.

Final Thoughts

Overheating is not just uncomfortable, it shortens the lifespan of your components, throttles performance, and increases the chance of system failure. Whether you’re gaming, streaming, or editing, managing CPU temps should be a top priority.

Stay cool literally and keep your machine running at peak efficiency by staying on top of thermal maintenance. And if you ever hit a wall? Let the pros at Volta PC Upgrade & Repair take over.

CONTACT US

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melda goh
11:06 11 Jan 25
had my keyboard replaced here, service was really fast (
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esllow
10:56 10 Jan 25
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Christopher Lim
10:37 10 Jan 25
Thank you Ming for your professional service to my son. He is very happy and he appreciate your sharing very much.🫰
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Hueyling Teo
09:03 10 Jan 25
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Syed Daniel Productions
14:13 12 Dec 24
5 minutes walk from Tai Seng MRT. Long story short I replaced my old laptop wifi card but messed up the installation as I forced the antennae pin onto the card itself and found this laptop repair shop to replace my laptop wifi card.Walked in at around 5.30pm, expected it’ll take 2 days repair as I came on Tuesday and they close every Wednesday but service was fast and it was done in an hour.Great service (didn’t get his name) and my laptop can connect to wifi and bluetooth! Superb!
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wing kit cheng
11:03 21 Nov 24
Very professional. Service fee is reasonable.
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Peter Lye
06:00 14 Nov 24
Great location. About 5 minutes walk from Tai Seng MRT. Plenty of street parking around the building but if not available, there’s ample paid parking withiin the building compound. Counter stuff was efficient and professional. Sent in a Macbook Pro for a battery change and it was ready in 48hrs. Cost appears to be quite reasonable.
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L & C Wong
02:17 28 Oct 24
This has been an awesome experience. Ming from Volta has been extremely responsive and to the point, about what can or cannot be done (Unfortunately my laptop truly died with a burnt mainboard, and will cost more than buying a new laptop should i want to force a repair). Assessment was quick, and Company does not hardsell and does not charge any assessment fee if no repair is proceeded with. They managed to recover my data for a nominal fee which i was more than glad to proceed with. Backup/SDD transfer took just about 1 hour. Dont hesitate, just call them.
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Crystalrain
03:36 08 Oct 24
Super fast repair, and knowledgeable staff. The prices seem cheaper than what I found at other places as well, will come back again.
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Julien Bompard
07:08 29 Sep 24
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Qi Jia
06:19 27 Sep 24
I had issues with my laptop screen. Found an affordable laptop repair shop online and the communication was very quick, the techinican was very patient in answering my questions. Additionally, they were able to diagnose the issue very fast and the price was very reasonable too. Thank you Volta PC and team
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Neo EnWei (Ivan)
00:20 18 Sep 24
Had a Aftershock laptop which is 6 years old with screen issues, brought it to Aftershock but they were unable to do anything about it as they don’t carry this model anymore. Brought it to Volta and voila, they completed the screen replacement for me on the same day that I left my laptop over. Replacement was completed neatly and professionally with no damages to the laptop or any sort.Will definitely recommend to have your laptop check and/or fixed at Volta.Couldn’t express my gratitude enough, thanks again Volta!
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Eileen Ng
14:25 11 Sep 24
First time repairing my laptop here and everything was smoothly done. 👍🏻
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Cheng Chung Yuen
05:31 10 Sep 24
Friendly and helpful service.
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Luke
10:15 05 Sep 24
Had PC freezing issue for my custom built PC for a long time, unable to do self diagnosis, decided to give it a try and send to Volta PC. They are very professional and able to correctly diagnose the CPU was faulty. They also carry some ready stocks for parts that are faulty to replace, if not, they can help you to order from supplier and give you a quote, so it’s one-stop shop for easy of mind. JC helped to explained my queries at collection and he was very knowledgeable, friendly and nice to chat with. Definitely will get their service again in the future 👍
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Lee kok ming
10:02 30 Aug 24
The team was professional, knowledgeable and efficient. They quickly diagnose my battery issue and provide a clear explanation of the repairs needed. During the replacement and collection, there are further advise provided on parts reliability and handle with care for daily use. Highly recommended for those looking for good repair service needed.
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Anthony Lim
14:40 26 Aug 24
Very helpful and professional. Quick repair time. Upfront on the total cost.
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Fatin Nazurah
09:43 26 Aug 24
Affordable, good and fast service.
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eric zhang
12:43 11 Aug 24
Laptop keyboard broke, had to replace the entire thing. very quick and responsive service, plus it looks like they cleaned out my fans aswell. Would recommend.
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WANG YIWEI Student
10:34 23 Jul 24
bought a custom build computer online at their website and selected the self collection at jurong option, computer took way longer than expected to get ready(2-3 weeks) and in the end i was told to go collect it at their tai seng branch which was really far away,poor service,dont go there
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Jolene Chua
14:29 09 Jul 24
managed to fix my dead macbook air m2, and got back my important files and documents, very grateful to them!!
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john
09:06 08 Jul 24
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Alexis Lu
04:27 08 Jul 24
Faulty processor fan was replaced. Timely servicing and clear time given to finish fixing my computer.
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Kally Teo
04:19 08 Jul 24
Had my desktop sent here as it stopped working during an intense gaming session.Ken is very passionate about computer parts/ installation/ overall look for the desktop and willing to share his expertise. He is very patient at explaining the issues and what other potential troubles to look out for after the fix.Got together some parts (power supply, GPU and fan cooler) myself and Ken installed them within a day at a cost of $95.He also looked through the temperature of the CPU and GPU, cleaned up the interior, and updated my motherboard, graphics card and Windows software.A huge thanks for helping and teaching me!
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Mike CY
03:49 04 Jul 24
Great service!
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Atlas
09:21 01 Jul 24
2nd time returning to repair my laptop, 1st time was in 2021 for a software issue, and this time for a hinge repair, at both times, the staff at the store was always knowledgeable and professional, giving us a peace of mind knowing that my laptop will be in good hands.free diagnosis followed by options of repair for you to select, price is reasonable as well, 10/10 would recommend.
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Vaikunthan Rajaratnam
08:58 29 Jun 24
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David Yap
13:53 21 Jun 24
Sent to this shop to replace my keyboard. Now my laptop got second life and works like new, I save money from buying new laptop. Please get your quotation before heading to the shop.
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Eng Lum Kan
05:15 24 May 24
Job well done. Both economical. & good service. Laptop is almost as good as new.
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Chiara Lee
04:12 20 May 24
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Steven Diao
13:45 18 May 24
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Xiu Wen –
14:06 13 May 24
Technician is honest, patient in explaining details in layman terms and also very approachable. Doesn’t hardsell or upsell services if he thinks you don’t need it. Turnaround time was decent as well. Highly recommend!
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Guanji Lim
12:53 13 May 24
I cracked my laptop screen on Friday and went to contact Volta PC to ask for their price and whether it can be fixed. The next day l went to their shop and luckily the screen can be replaced and it is done within a few hours. I collected back my laptop on that day itself too. Thank you for the excellent service 😄
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Kumar Baduil
12:42 13 May 24
The JE outlet has a Tech named Ken. Very knowledgeable and helpful as well. His customer service skills is on par with those in retail. The company itself is very professional and their cost does not burn a hole in your pocket. They are your friendly neighbourhood PC repair shop. Kudos!
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Joven Tan
06:33 12 May 24
Went to fix my Lenovo Laptop, diagnosed with a SSD issue. Great, got fixed.Not even one month later, entire laptop fails to boot.Take it to a friend who knows about parts, he opens and the motherboard is fried. Thermal paste is all over the place, overheated the motherboards chips. Costed over $200 in repairs for this.Image attached is how it looks from a friend who got a repasting here.Do not recommend, overpriced and ruins your stuff.
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Ween Keen Lee
10:06 02 May 24
Ken took the time to harmonize expectations on results of cleaning. Did not hard sell / up sell. Understood the problem and suggested specific and targeted solutions. Awesome experience!Went back to Ken a few weeks later due to a recurring problem while gaming, Ken spent the time to patiently explain and engage on what the possibilities are and the solution that he deeply researched. After a few trials and error tuning parameters, it works great!!!
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Carpe Diem
05:28 02 May 24
Efficient and experienced tec consultant that enhances confidences for the customer. Strongly reccomend.
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Shihar Azmi
11:06 29 Apr 24
Service is very good. Quick to respond, and assess root cause and resolve.
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T99 Management
05:02 29 Apr 24
The technician knows the product very well. fast and cheap
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Su Wai Hlaing
14:40 08 Apr 24
Went in for a Lenovo screen change as a line was running across it and showing doubles whenever I scrolled. Service guy was friendly and fixed it in about an hour. Repair work is great. Charged $355. Screen is now clearer than ever. Would recommend.
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