Hardware Tips                                                   

What is the difference between GPU Core Temp and Junction (Hotspot) Temp in 2026?

 While "Core Temperature" represents the average heat across the silicon die, 

 (or Hotspot) is the measurement from the single hottest point among hundreds of internal sensors. In the era of high-density chipsets like the RTX 50-series, a 

 between these two numbers is considered normal physical behavior. 

To prevent thermal throttling and protect your hardware, maintaining a low delta through high-performance cooling—such as 

darkFlash bottom-intake fan configurations

—is essential for long-term stability and peak overclocking performance.

The Science of the "Hotspot": Why average temps lie

In the past, players only monitored a single "GPU Temperature" value. However, modern 2026 GPUs are massive silicon structures with billions of transistors packed into a tiny area.

While a 30°C gap is normal, exceeding a 110°C Junction Temperature usually triggers 

. This is your GPU's "emergency brake," where it slashes clock speeds to prevent physical damage, leading to sudden FPS drops during gaming. 

Common causes for an abnormal temperature gap include:

The Solution: Targeting the Hotspot with Vertical Airflow

Pro Tips for 2026 GPU Temperature Management

To keep your high-density flagship card running cool, follow this checklist:

Conclusion: Cooling the Core, Protecting the Investment

Understanding that a high Junction Temperature is a normal part of 2026 hardware physics will save you from unnecessary stress. However, "normal" doesn't mean it can't be improved. By utilizing a 

 and direct bottom-intake cooling, you can significantly narrow that thermal gap, ensuring your GPU stays boosted and your frames stay high.





What is the difference between GPU Core Temp and Junction (Hotspot) Temp in 2026? While "Core Temperature" represents the average heat across the silicon die, Junction Temperature (or Hotspot) is the measurement from the single hottest point among hundreds of internal sensors. In the era of high-density chipsets like the RTX 50-series, a 30°C delta between these two numbers is considered normal physical behavior. 

To prevent thermal throttling and protect your hardware, maintaining a low delta through high-performance cooling—such as darkFlash bottom-intake fan configurations—is essential for long-term stability and peak overclocking performance.



The Science of the "Hotspot": Why average temps lie

In the past, players only monitored a single "GPU Temperature" value. However, modern 2026 GPUs are massive silicon structures with billions of transistors packed into a tiny area.





The Sensor Network: High-end GPUs now feature a dense matrix of thermal sensors embedded directly into the silicon.



Average vs. Peak: The "Core Temp" is a weighted average of these sensors, whereas the "Junction Temp" reports the absolute maximum reading from the most stressed part of the die.



The Delta Reality: Because heat does not spread perfectly across the silicon, seeing your core at 75°C while the hotspot hits 105°C is a common physical phenomenon known as the "thermal delta".







When should you actually worry?

While a 30°C gap is normal, exceeding a 110°C Junction Temperature usually triggers Thermal Throttling. This is your GPU's "emergency brake," where it slashes clock speeds to prevent physical damage, leading to sudden FPS drops during gaming. Common causes for an abnormal temperature gap include:





Uneven Mounting Pressure: If the cooler isn't perfectly flat against the die.



Poor Case Airflow: If the GPU is "choking" on recycled hot air trapped at the bottom of the chassis.



Dust Accumulation: Clogged fins act as insulators, trapping heat in the hotspot zone.







The Solution: Targeting the Hotspot with Vertical Airflow





Direct GPU Intake: Chassis feature specialized PSU chambers with louvered side panels, allowing you to install dedicated bottom-intake fans.



Lowering the Delta: By positioning fans directly beneath the graphics card, cold air is forced straight into the GPU's heatsink, targeting the hotspot more effectively than front-panel fans ever could.



Positive Pressure Defense: Our fan configurations are designed to maintain positive air pressure, which not only pushes heat out of the rear vents but also acts as a shield against the dust buildup that causes sensors to spike.







Pro Tips for 2026 GPU Temperature Management

To keep your high-density flagship card running cool, follow this checklist:





Optimize Fan Curves: Use software to sync your chassis fans with the GPU Hotspot sensor rather than the CPU temp.



Check Your Clearance: Ensure there is at least 2 slots of breathing room between your GPU and the bottom of the case.



Use High-Static Pressure Fans: For the bottom intake, always use fans like the, which are optimized to push air through tight gaps and mesh filters.







Conclusion: Cooling the Core, Protecting the Investment

Understanding that a high Junction Temperature is a normal part of 2026 hardware physics will save you from unnecessary stress. However, "normal" doesn't mean it can't be improved. By utilizing a  high-airflow chassis and direct bottom-intake cooling, you can significantly narrow that thermal gap, ensuring your GPU stays boosted and your frames stay high.

Junction Temperature is the measurement from the single hottest point among hundreds of internal sensors.

Understanding GPU Junction Temp vs. Core Temp: Is Your Hotspot Too Hot?

ハードウェアのヒント

接合部温度とは、数百個ある内部センサーの中で最も温度の高い1点における温度測定値です。

GPUのジャンクション温度とコア温度の違いを理解する：ホットスポットの温度が高すぎるかどうか？

Build Guides                                                    

Whether it is the massive RTX 5090 or the efficient 5070, modern GPU coolers have become incredibly dense. 

With power draws pushing limits, the traditional "Front-to-Back" airflow strategy from the 2020s is struggling to keep up. This has made 

 airflow the new standard for high-end builds. But is it just for aesthetics? In this guide, we explain why the RTX 50 series practically 

The Problem with Front Intake: The "90-Degree" Turn

In a standard tower case, fans are usually mounted on the front panel, pushing cool air horizontally.

This setup worked fine for older generations, but it creates a conflict for modern cards like the RTX 5080:

This means your GPU has to fight to "grab" the cool air as it passes by, forcing the airflow to make a sharp 90-degree turn. With the increased thickness of 50-series heatsinks, this turbulence creates dead zones, forcing fans to spin louder just to maintain boost clocks.

Why Direct Cooling Wins: The Physics of Bottom Intake

When you install fans at the bottom of the case, the physics change completely. Bottom fans pull cool air from the lowest point (the coolest air in the room) and push it 

For cards with high power density like the RTX 5090 (which can spike over 500W), this 

 method is superior. Benchmarks show that adding bottom intake fans can lower GPU Core temperatures by 3-5°C, and significantly reduce the critical Hotspot Temperature.

Panoramic Cases: The New Standard for 2025/2026

By now, "Panoramic" or "Dual Chamber" cases (like the 

) are the norm for gaming builds. Since these cases use glass front panels, 

This setup prevents heat pockets from forming around the massive backplates of modern GPUs, ensuring your system performs as good as it looks.

With bottom intake becoming essential, aesthetic standards have also risen. Nobody wants to look at the ugly back frame of a fan on the bottom of their case.

The Solution: darkFlash Reverse Blade Fans To maintain a clean look:

 on the bottom allows you to pull air in (Intake) while showing off the "Infinity Mirror" center and clean RGB blades, keeping your build showcase-ready.





If you have upgraded to the latest RTX 50-series (Blackwell) graphics cards, you know the reality: Performance comes with heat. Whether it is the massive RTX 5090 or the efficient 5070, modern GPU coolers have become incredibly dense. 

With power draws pushing limits, the traditional "Front-to-Back" airflow strategy from the 2020s is struggling to keep up. This has made Bottom Intake airflow the new standard for high-end builds. But is it just for aesthetics? In this guide, we explain why the RTX 50 series practically demands airflow from the floor.



The Problem with Front Intake: The "90-Degree" Turn

In a standard tower case, fans are usually mounted on the front panel, pushing cool air horizontally.

This setup worked fine for older generations, but it creates a conflict for modern cards like the RTX 5080:





The GPU's Flow: The massive GPU fans pull air vertically upwards.



The Case's Flow: Front fans push air horizontally.





(darkFlash DRX70 Mesh ATX PC Case, with mesh front and optional bottom fan mounts)



This means your GPU has to fight to "grab" the cool air as it passes by, forcing the airflow to make a sharp 90-degree turn. With the increased thickness of 50-series heatsinks, this turbulence creates dead zones, forcing fans to spin louder just to maintain boost clocks.



Why Direct Cooling Wins: The Physics of Bottom Intake

When you install fans at the bottom of the case, the physics change completely. Bottom fans pull cool air from the lowest point (the coolest air in the room) and push it vertically upwards.





Zero Resistance: This airflow direction aligns perfectly with your GPU fans.



Instant Access: Cool air travels directly into the GPU heatsink without passing through drive cages or cabling.





(darkFlash DY460 ATX PC Case)



For cards with high power density like the RTX 5090 (which can spike over 500W), this "Direct Airflow" method is superior. Benchmarks show that adding bottom intake fans can lower GPU Core temperatures by 3-5°C, and significantly reduce the critical Hotspot Temperature.



Panoramic Cases: The New Standard for 2025/2026

By now, "Panoramic" or "Dual Chamber" cases (like the darkFlash DY460 ATX PC Case) are the norm for gaming builds. Since these cases use glass front panels, bottom intake is mandatory.







This design relies on an optimized "Chimney Effect":





Bottom: Forces cold air directly into the GPU.



Side: Supplies fresh air to the CPU and VRMs.



Top: Exhausts all rising heat immediately.

This setup prevents heat pockets from forming around the massive backplates of modern GPUs, ensuring your system performs as good as it looks.



Reverse Blade Fans: Don't Ruin the Look

With bottom intake becoming essential, aesthetic standards have also risen. Nobody wants to look at the ugly back frame of a fan on the bottom of their case.

The Solution: darkFlash Reverse Blade Fans To maintain a clean look:





Normal Blade Fan: Pushes air away from the pretty side.



Reverse Blade Fan: Pulls air through the pretty side.





(Left: Standard bottom fans via Reddit / Right: darkFlash INF34 Reverse Fans)



Using darkFlash Reverse Fans on the bottom allows you to pull air in (Intake) while showing off the "Infinity Mirror" center and clean RGB blades, keeping your build showcase-ready.



Conclusion: Do You Need Bottom Fans?









For Mid-Range GPUs (RTX 5060 / 5060 Ti): Traditional airflow is sufficient, but bottom fans help with noise.



For High-End GPUs (RTX 5070 & Up): Bottom intake is highly recommended. The thermal density of these cards benefits hugely from direct air.



For Glass/Panoramic Cases: Bottom intake is mandatory.

Stop GPU thermal throttling, learn why bottom intake is the new standard for 2026 builds.

Are Bottom Intake Fans Necessary? The Truth About GPU Cooling

ビルドガイド

GPU の熱スロットリングを止め、底面吸気口が 2026 年のビルドの新しい標準である理由を学びます。

ボトム吸気ファンは必要か？GPU冷却の真実

When buying case fans, most people look at RGB lighting, CFM (airflow), or noise levels (dBA). However, there is one hidden spec that dictates how long your fan will live and how noisy it will become over time: 

Hydro (Hydraulic), Sleeve, and Double Ball bearings

 to help you decide which one is worth your money for your next gaming build.

Hydro / Rifle Bearing: The Gamer's "Sweet Spot"

This is the category where most modern mid-to-high-end RGB fans (like many darkFlash models) belong. Hydro Bearings (and their cousins, Rifle Bearings) are essentially an advanced version of the Sleeve Bearing. They feature special grooves and a sealed design that recirculates the lubricant, preventing it from drying out.

 of a sleeve bearing with a significantly 

. It is the perfect balance of price and performance for home gaming PCs.

Slightly more expensive than basic sleeve fans, but cheaper than complex magnetic levitation fans.

Sleeve Bearing: The Budget-Friendly Choice

The Sleeve Bearing is the most basic and common type found in budget-friendly electronics. It uses a simple design where the central shaft rotates inside a sleeve-like cylinder, lubricated by oil or grease.

It is incredibly cheap to manufacture and is generally quiet when brand new.

The lubricant eventually dries out (evaporates). Once dry, the metal-on-metal friction causes loud noise and eventual failure.

Double Ball Bearing: The Industrial Workhorse

If you look at server rooms or mining rigs, you will find Double Ball Bearing fans. As the name suggests, this design uses two rings of tiny steel balls to support the fan shaft, significantly reducing friction.

Extremely durable. They can withstand high heat and run 24/7 for years without failing.

They are inherently noisier. You can often hear a distinct "metallic clicking" sound at low speeds, which might annoy silence-focused gamers.

Quick Comparison: Which One Should You Buy?

The "Vertical vs. Horizontal" Mounting Issue

This is a critical factor often overlooked.

 offer the best value. They provide the whisper-quiet operation you need for an immersive gaming experience while offering enough durability to outlast your other components.

When choosing fans for your next build, whether it's for a high-airflow mesh case or a stunning panoramic view case—checking the bearing type is just as important as checking the RGB style.





When buying case fans, most people look at RGB lighting, CFM (airflow), or noise levels (dBA). However, there is one hidden spec that dictates how long your fan will live and how noisy it will become over time: The Bearing Type.

In this guide, we will compare Hydro (Hydraulic), Sleeve, and Double Ball bearings to help you decide which one is worth your money for your next gaming build.



Hydro / Rifle Bearing: The Gamer's "Sweet Spot"

This is the category where most modern mid-to-high-end RGB fans (like many darkFlash models) belong. Hydro Bearings (and their cousins, Rifle Bearings) are essentially an advanced version of the Sleeve Bearing. They feature special grooves and a sealed design that recirculates the lubricant, preventing it from drying out.





(darkFlash INF34 ARGB PWM Cooling Fan)



The Pros

It combines the silence of a sleeve bearing with a significantly longer lifespan. It is the perfect balance of price and performance for home gaming PCs.



The Cons

Slightly more expensive than basic sleeve fans, but cheaper than complex magnetic levitation fans.



Lifespan

Good (~40,000 to 50,000+ hours).



Sleeve Bearing: The Budget-Friendly Choice

The Sleeve Bearing is the most basic and common type found in budget-friendly electronics. It uses a simple design where the central shaft rotates inside a sleeve-like cylinder, lubricated by oil or grease.







The Pros

It is incredibly cheap to manufacture and is generally quiet when brand new.



The Cons

The lubricant eventually dries out (evaporates). Once dry, the metal-on-metal friction causes loud noise and eventual failure.



Lifespan

Shortest (~30,000 to 40,000 hours).



Double Ball Bearing: The Industrial Workhorse

If you look at server rooms or mining rigs, you will find Double Ball Bearing fans. As the name suggests, this design uses two rings of tiny steel balls to support the fan shaft, significantly reducing friction.







The Pros

Extremely durable. They can withstand high heat and run 24/7 for years without failing.



The Cons

They are inherently noisier. You can often hear a distinct "metallic clicking" sound at low speeds, which might annoy silence-focused gamers.



Lifespan

Long (~50,000 to 70,000 hours).



Quick Comparison: Which One Should You Buy?





The "Vertical vs. Horizontal" Mounting Issue

This is a critical factor often overlooked.





Ball and Hydro Bearings are not affected by gravity. You can mount them vertically (front panel) or horizontally (top/bottom panel) without affecting their lifespan.



Sleeve Bearings hate being mounted horizontally (e.g., at the top of your case blowing air up). Gravity causes the oil to pool on one side, leading to uneven wear and rapid failure.





(darkFlash DM8 LINE ARGB PWM Cooling Fan, on FLOATRON F1 M-ATX PC Case)





Pro Tip: If you are installing fans on the top radiator of your case, avoid cheap Sleeve bearings. Opt for Hydro bearings to ensure they last.



Conclusion

For most PC gamers and builders, Hydro (or Rifle) Bearing fans offer the best value. They provide the whisper-quiet operation you need for an immersive gaming experience while offering enough durability to outlast your other components.

When choosing fans for your next build, whether it's for a high-airflow mesh case or a stunning panoramic view case—checking the bearing type is just as important as checking the RGB style.

Before you buy your next fan, discover the critical difference between Hydro, Sleeve, and Ball bearings.

PC Fan Bearings Explained: Hydro, Sleeve, or Ball – Which Should You Choose?

次に扇風機を購入する前に、ハイドロベアリング、スリーブベアリング、ボールベアリングの重要な違いを理解しておきましょう。

PCファンベアリング解説：ハイドロベアリング、スリーブベアリング、ボールベアリング – どれを選ぶべきか？

How-to Guides                                                   

In recent years, all-white PC builds have become the go-to choice for many gamers looking to create a clean and stylish setup. But questions like 

“Will my white components turn yellow?”

 are common concerns. In this article, we’ll explain why white PCs may yellow over time and how to properly care for them so they stay bright and pristine.

Why Do White PC Builds Turn Yellow? Key Causes Explained

White materials aren’t guaranteed to yellow, but they do show signs of aging more noticeably than black ones. The main reasons include:

When your PC is placed in direct sunlight for extended periods, ultraviolet light can trigger photochemical reactions in certain plastics and coatings, gradually causing them to yellow.

Oil, dust, and fine particles in the air can settle on white surfaces over time, making them look dull or dirty yellow.

Long-term heat can accelerate material degradation, especially around areas near exhaust vents where temperatures are higher.

Not all white coatings and plastics are made equal. Different brands and production batches can have varying resistance to aging. Choosing reputable products significantly reduces the chance of yellowing.

How to Maintain Your White PC? 5 Simple Tips to Keep It Looking New

While white builds are at some risk of yellowing, with regular cleaning and proper placement, you can keep your system looking immaculate. Here are some practical tips for gamers:

Place your PC in a cool, shaded area to minimize UV exposure.

Wipe down surfaces at least once a month with a lint-free dry cloth or a lightly dampened one. Avoid harsh chemical cleaners.

Use an air purifier and keep your room tidy to minimize dust and oil particles settling on your PC.

Ensure good airflow around your system to prevent excessive heat buildup that can accelerate aging.

Opt for components with high-quality, durable coatings designed to resist discoloration. For example, 

 is specifically engineered for long-lasting beauty.

Conclusion: White PCs Don’t Have to Yellow — It’s All About the Right Care and Quality

White PC builds don’t inevitably turn yellow quickly — it all depends on the materials and your environment. By choosing reliable products and practicing regular cleaning while avoiding direct sunlight, you can enjoy a bright, white rig for years to come.

If you’re looking for a beautifully designed, durable white case or cooling solution, check out the 

 — helping you build the pure white setup of your dreams!





In recent years, all-white PC builds have become the go-to choice for many gamers looking to create a clean and stylish setup. But questions like “Will my white components turn yellow?” or “How long before they discolor?” are common concerns. In this article, we’ll explain why white PCs may yellow over time and how to properly care for them so they stay bright and pristine.



Why Do White PC Builds Turn Yellow? Key Causes Explained

White materials aren’t guaranteed to yellow, but they do show signs of aging more noticeably than black ones. The main reasons include:



UV Exposure

When your PC is placed in direct sunlight for extended periods, ultraviolet light can trigger photochemical reactions in certain plastics and coatings, gradually causing them to yellow.



Air Pollution and Dust

Oil, dust, and fine particles in the air can settle on white surfaces over time, making them look dull or dirty yellow.



High Temperatures

Long-term heat can accelerate material degradation, especially around areas near exhaust vents where temperatures are higher.



Material Quality Differences

Not all white coatings and plastics are made equal. Different brands and production batches can have varying resistance to aging. Choosing reputable products significantly reduces the chance of yellowing.







How to Maintain Your White PC? 5 Simple Tips to Keep It Looking New

While white builds are at some risk of yellowing, with regular cleaning and proper placement, you can keep your system looking immaculate. Here are some practical tips for gamers:



1. Avoid Direct Sunlight

Place your PC in a cool, shaded area to minimize UV exposure.



2. Clean Regularly

Wipe down surfaces at least once a month with a lint-free dry cloth or a lightly dampened one. Avoid harsh chemical cleaners.



3. Keep the Air Clean

Use an air purifier and keep your room tidy to minimize dust and oil particles settling on your PC.



4. Maintain Proper Ventilation

Ensure good airflow around your system to prevent excessive heat buildup that can accelerate aging.



5. Choose Quality Products

Opt for components with high-quality, durable coatings designed to resist discoloration. For example, darkFlash’s all-white series is specifically engineered for long-lasting beauty.





(Case: DRX70 / Cooler: DN360)



Conclusion: White PCs Don’t Have to Yellow — It’s All About the Right Care and Quality

White PC builds don’t inevitably turn yellow quickly — it all depends on the materials and your environment. By choosing reliable products and practicing regular cleaning while avoiding direct sunlight, you can enjoy a bright, white rig for years to come.





(Case: DY470 / Cooler: DN360S / Fans: DM12 Pro)



If you’re looking for a beautifully designed, durable white case or cooling solution, check out the darkFlash white series — helping you build the pure white setup of your dreams!

Why white PCs yellow — and how to keep yours looking brand new.

Do White PC Builds Turn Yellow? How to Keep Your White Rig Looking Brand New

ハウツーガイド

白いパソコンが黄色くなる理由と、パソコンを新品のように保つ方法。

白いPCは黄ばむ？白いPCを新品同様に保つ方法

Case fans play a critical role in keeping your PC running cool and stable. When they malfunction—whether it’s strange noises, erratic spinning, or not spinning at all—it can lead to overheating, performance drops, or even hardware failure.

In this guide, we’ll walk you through common case fan problems and how to fix them step by step, ensuring your system runs smoothly and quietly.

If the fan still doesn’t spin, the fan itself may be defective and should be replaced.

2. The Fan Is Noisy or Makes Strange Sounds

3. The Fan’s RGB Lighting Isn’t Working

Keep in mind that fans often spin slowly at low system temperatures—that’s completely normal for smart fan profiles.

If the fan still spins abnormally, the fan itself may be defective and should be replaced.

A malfunctioning case fan doesn’t just make noise—it can compromise your whole system’s cooling efficiency. Thankfully, most fan issues are easy to identify and fix with a little inspection and testing.

To prevent problems down the line, invest in quality fans, clean them regularly, and keep your wiring neat and secure.

PC case fans aren’t built to last forever.

 Over time, wear and tear from dust, heat, and mechanical stress will eventually take a toll. Even the best-quality fans have a lifespan, so if one stops working after years of use, it’s not unusual—it’s just time for a replacement.

Looking for reliable, high-performance case fans? Explore the full lineup of darkFlash fans—built for silent operation, vibrant RGB lighting, and long-lasting durability.





Case fans play a critical role in keeping your PC running cool and stable. When they malfunction—whether it’s strange noises, erratic spinning, or not spinning at all—it can lead to overheating, performance drops, or even hardware failure.



In this guide, we’ll walk you through common case fan problems and how to fix them step by step, ensuring your system runs smoothly and quietly.







Common Reasons for PC fans not spinning





Dust buildup: Over time, dust and debris can accumulate on fan blades and bearings, leading to reduced performance or complete failure.



Power issues: Loose cables, faulty connections, or inadequate power supply can prevent fans from operating properly.



Physical Interference: Inadequate cable management might cause the fan blades hitting the cables and lead to slow downs or immobilization.



Faulty motors: Fan motors can degrade with use, eventually failing to spin at all.



BIOS misconfiguration: Incorrect settings in the BIOS may disable the fan or restrict its speed.



Software issues: Malfunctions in fan control software can cause the fan to behave erratically or stop working.



Identifying and Resolving Fan Issues

1. The Fan Isn’t Spinning





⚠️ Common Causes:





Insufficient power due to daisy-chain wiring



Improper cable splicing or loose connections



Malfunctioning fan hub or controller



Fan blades hitting loose cables

👉 How to Fix:





Power down your PC and unplug it from the wall



Open your case and check the fan connections—ensure the fan cable is securely plugged into the correct motherboard header or fan hub.



Try connecting the 4-pin fan directly to another motherboard header to isolate the issue.



You can also test the fan individually by unplugging it from the hub or series connection and powering it separately.

If the fan still doesn’t spin, the fan itself may be defective and should be replaced.



2. The Fan Is Noisy or Makes Strange Sounds





⚠️ Common Causes:





Dust buildup in the bearings or blades



Fan blades hitting loose cables



Vibration-induced resonance between the fan and case

👉 How to Fix:





Turn off your PC and inspect the fan closely.



Clean the blades and bearings using compressed air, a soft brush or alcohol wipes to remove any dust.



Ensure no cables are interfering with the blades.



Check for any physical damage like bent blades or worn mounts.



Test the fan in another system or on an open bench to rule out case vibration as the cause.



If the fan still makes strange noises, the fan itself may be defective and should be replaced



3. The Fan’s RGB Lighting Isn’t Working





⚠️ Common Causes:





Outdated or missing RGB firmware/software



Inadequate power supply



Improper RGB header connection

👉 How to Fix:





Connect the fan’s RGB (3-pin or proprietary) cable to a different RGB header on your motherboard or controller.



Ensure your motherboard lighting software is installed and updated (e.g., ASUS Aura Sync, MSI Center, GIGABYTE RGB Fusion).



If the issue persists, consider using a powered RGB hub to supply sufficient power to the lighting.



As a last check, test the fan’s lighting functionality outside your current build to confirm if it’s a hardware issue.



4. The Fan Spins Too Slowly





⚠️ Common Causes:





Fan speed settings configured to low via BIOS or software



Fan blades hitting loose cables causing slow downs



Internal temperature not high enough to trigger higher fan speed

👉 How to Fix:





Check if the cable is interfering with the fan blades.



Boot into BIOS or open your motherboard’s fan control software.



Adjust the fan curve to increase speeds earlier or set a custom performance profile.

Keep in mind that fans often spin slowly at low system temperatures—that’s completely normal for smart fan profiles.

If the fan still spins abnormally, the fan itself may be defective and should be replaced.



Final Thoughts

A malfunctioning case fan doesn’t just make noise—it can compromise your whole system’s cooling efficiency. Thankfully, most fan issues are easy to identify and fix with a little inspection and testing.





(Gauss G24 ARGB Fan)



To prevent problems down the line, invest in quality fans, clean them regularly, and keep your wiring neat and secure.



It’s also important to remember: PC case fans aren’t built to last forever. Over time, wear and tear from dust, heat, and mechanical stress will eventually take a toll. Even the best-quality fans have a lifespan, so if one stops working after years of use, it’s not unusual—it’s just time for a replacement.



Looking for reliable, high-performance case fans? Explore the full lineup of darkFlash fans—built for silent operation, vibrant RGB lighting, and long-lasting durability.





(INF34 ARGB Cooling Fan)

The go-to guide for identifying and resolving common fan issues with ease

How to Troubleshoot PC Case Fan Issues Like a Pro

一般的なファンの問題を簡単に特定して解決するためのガイド

PCケースファンの問題をプロのようにトラブルシューティングする方法

Ever notice your PC slowing down when things get hot?

Your game suddenly drops frames, video exports take longer, and your fans sound like a jet engine, yet performance keeps dropping. This isn’t just your PC “getting old”—it’s your system protecting itself from

 heat damage, limiting performance to survive.

Your CPU and GPU generate heat as they work. Normally, your cooling system keeps things in check, but if temperatures climb too high—typically above 90°C—your system will automatically lower its operating speeds to reduce heat.

, a built-in safety feature that prevents permanent damage by sacrificing performance to lower temperatures.

In other words: Your PC slows down to protect itself.

If your environment is warm, or your PC frequently handles heavy tasks like rendering, gaming, or simulations, these slowdowns can happen often.

The Best Fan Installation Direction for Your PC Case

While thermal throttling protects your PC, it can interrupt your workflow and reduce productivity. Here’s how you can help your PC stay cool:

As a hardware brand, we see it all the time: creators, gamers, and engineers invest in high-performance PCs but still face slowdowns under heat. It’s often not the processor or GPU that’s the problem—it’s insufficient thermal management.

By ensuring your system stays cool, you allow your CPU and GPU to maintain high clock speeds without triggering thermal throttling. This means:

If you’re planning to build or upgrade your PC for heavy workloads, 

thermal design should be at the top of your checklist.

High temperatures trigger thermal throttling, which reduces your PC’s performance to prevent damage. While this keeps your hardware safe, it can interrupt your productivity and gaming experience.

By improving airflow, maintaining a clean system, and considering advanced cooling when building your setup, you can keep your PC cool and fast—even during demanding tasks.

If you’re looking to optimize your workstation for stable performance under heavy loads, or need guidance on cooling solutions that match your workflow, feel free to reach out. We’re here to help you keep your PC performing at its best—no matter how hot it gets.





Ever notice your PC slowing down when things get hot?

Your game suddenly drops frames, video exports take longer, and your fans sound like a jet engine, yet performance keeps dropping. This isn’t just your PC “getting old”—it’s your system protecting itself from heat damage, limiting performance to survive.







Why Does Heat Slow Down Your PC?

Your CPU and GPU generate heat as they work. Normally, your cooling system keeps things in check, but if temperatures climb too high—typically above 90°C—your system will automatically lower its operating speeds to reduce heat.

This is known as thermal throttling, a built-in safety feature that prevents permanent damage by sacrificing performance to lower temperatures.

In other words: Your PC slows down to protect itself.



How Overheating Impacts Performance

When your PC overheats, you may notice:





Games drop in frame rates during intense moments.



Video rendering and exporting slow down.



Fans ramp up, becoming loud, but temperatures remain high.



The PC’s outer casing feels warm or hot.



The system feels sluggish, especially during demanding workloads.

If your environment is warm, or your PC frequently handles heavy tasks like rendering, gaming, or simulations, these slowdowns can happen often.





(The Best Fan Installation Direction for Your PC Case)



How to Prevent Heat-Related Slowdowns

While thermal throttling protects your PC, it can interrupt your workflow and reduce productivity. Here’s how you can help your PC stay cool:





Keep your workspace well-ventilated and ensure airflow around your system.



Regularly clean out dust from fans and heatsinks to maintain clear airflow.



Avoid blocking air vents with cables or clutter near your PC.



Consider using high-quality thermal paste to improve heat transfer.



If you run demanding workloads regularly, consider investing in advanced cooling solutions or a system designed for sustained performance.





(DP7 Thermal Paste)



Why Thermal Management Matters

As a hardware brand, we see it all the time: creators, gamers, and engineers invest in high-performance PCs but still face slowdowns under heat. It’s often not the processor or GPU that’s the problem—it’s insufficient thermal management.

By ensuring your system stays cool, you allow your CPU and GPU to maintain high clock speeds without triggering thermal throttling. This means:





Consistent frame rates in games



Faster render and simulation times



Quieter operation under load



Longer hardware lifespan

If you’re planning to build or upgrade your PC for heavy workloads, thermal design should be at the top of your checklist.





(DN360S Liquid CPU Cooler)



Key Takeaway

High temperatures trigger thermal throttling, which reduces your PC’s performance to prevent damage. While this keeps your hardware safe, it can interrupt your productivity and gaming experience.

By improving airflow, maintaining a clean system, and considering advanced cooling when building your setup, you can keep your PC cool and fast—even during demanding tasks.



If you’re looking to optimize your workstation for stable performance under heavy loads, or need guidance on cooling solutions that match your workflow, feel free to reach out. We’re here to help you keep your PC performing at its best—no matter how hot it gets.





Understanding Thermal Throttling and How It Affects Performance.

Why Does My PC Slow Down When It Gets Hot?

サーマルスロットリングとそれがパフォーマンスに与える影響について理解する。

PC が熱くなると速度が低下するのはなぜですか?

When it comes to building a PC, planning is everything. Whether you're a first-time builder or a seasoned enthusiast, visualizing your setup ahead of time helps avoid compatibility issues and makes the whole process smoother and more cost-effective.

That’s why we are excited to introduce you to 

 — an incredibly useful online tool that lets you create and preview your custom PC builds in real time. Even better? Many of our darkFlash cases and cooling products are available on the platform, so you can see exactly how your setup will look before you make a purchase!

 is a browser-based PC builder that focuses on 

. You can select your components — from the CPU and GPU to the case, fans, and power supply — and the site will automatically check compatibility between parts. 

 apart is its stunning 3D rendering: it allows you to see how everything fits together, down to cable clearance, airflow direction, and lighting layout.

Pick your Case, CPU, motherboard, GPU, RAM, and other components step by step. If you already have some parts in mind, you can load them directly.

3. Select Your Case (Example: darkFlash DY470)

 — this is required before adding any components. You can browse the list 

 in the search bar to begin building with that case.

💡 Note: Make sure to choose products labeled with “3D” to enable 3D preview features.

After clicking on a component, you’ll see its 

 — making it easy to learn more or buy directly from online stores.

Once you’ve selected all your components, you can preview the full build in 3D. Use your mouse to rotate and view from different angles. You can also use the controls below the preview window to adjust RGB lighting effects in real time.

Happy with your setup? Save it for later or share it with friends or on forums. It’s a great way to get feedback or make sure everything’s ready before you hit “buy.”

Before You Buy, Try It Out on Buildcores!

 before making any final purchases. It’s the perfect way to visualize your setup and make sure everything works — and looks — just the way you want it.

If a product isn’t available for direct purchase, feel free to contact a local dealer in your region for assistance. We hope this tool makes your PC building experience smoother and more enjoyable!

PC building is about more than just hardware — it’s about creating something uniquely yours. Let 





When it comes to building a PC, planning is everything. Whether you're a first-time builder or a seasoned enthusiast, visualizing your setup ahead of time helps avoid compatibility issues and makes the whole process smoother and more cost-effective.

That’s why we are excited to introduce you to Buildcores — an incredibly useful online tool that lets you create and preview your custom PC builds in real time. Even better? Many of our darkFlash cases and cooling products are available on the platform, so you can see exactly how your setup will look before you make a purchase!



What is Buildcores?





Buildcores is a browser-based PC builder that focuses on visualizing your build in 3D. You can select your components — from the CPU and GPU to the case, fans, and power supply — and the site will automatically check compatibility between parts. 

What sets Buildcores apart is its stunning 3D rendering: it allows you to see how everything fits together, down to cable clearance, airflow direction, and lighting layout.



How to Use Buildcores

1. Visit the Buildcores Website

Head to https://buildcores.com and click on “Start Building” to begin.







2. Choose Your Components

Pick your Case, CPU, motherboard, GPU, RAM, and other components step by step. If you already have some parts in mind, you can load them directly.







3. Select Your Case (Example: darkFlash DY470)

Start by selecting your PC case — this is required before adding any components. You can browse the list use the filters on the left, or search for a specific model. For example, type “darkFlash DY470” in the search bar to begin building with that case.

💡 Note: Make sure to choose products labeled with “3D” to enable 3D preview features.









4. View Specs and Buy Links

After clicking on a component, you’ll see its detailed specifications along with purchase links — making it easy to learn more or buy directly from online stores.







5. Preview Your Build in 3D

Once you’ve selected all your components, you can preview the full build in 3D. Use your mouse to rotate and view from different angles. You can also use the controls below the preview window to adjust RGB lighting effects in real time.









6. Save or Share Your Build

Happy with your setup? Save it for later or share it with friends or on forums. It’s a great way to get feedback or make sure everything’s ready before you hit “buy.”



Before You Buy, Try It Out on Buildcores!





We recommend exploring your build on Buildcores before making any final purchases. It’s the perfect way to visualize your setup and make sure everything works — and looks — just the way you want it.

If a product isn’t available for direct purchase, feel free to contact a local dealer in your region for assistance. We hope this tool makes your PC building experience smoother and more enjoyable!

PC building is about more than just hardware — it’s about creating something uniquely yours. Let Buildcores and darkFlash help you bring that vision to life!

Get a realistic view of your build, check compatibility, and plan with confidence.

Visualize Your PC Build in 3D — No More Guesswork

ビルドを現実的に把握し、互換性を確認し、自信を持って計画を立てましょう。

PC の組み立てを 3D で視覚化 - もう推測する必要はありません

現代社会においてゲームとコンピューターDIYに情熱を注ぐ私たちdarkFlashは、PCケース、CPUクーラー、ケースファン、そしてゲーミングチェアやゲーミングテーブルまで、自ら組み立て、実際に使用することで、ハイエンドな設備を備えた印象的で並外れた製品の開発方法を考え続けてきたことに誇りと感謝の気持ちを抱いています。

私たちの目標は、あらゆるユーザーがその効果を最大限に発揮できる製品を作ることです。

darkFlash

As an enthusiast of games and computer DIY in this age, we, darkFlash, feel proud and grateful for keep thinking how to develop impressive and extraordinary products with high-end facilities by assembling and using the PC cases, CPU coolers, case fans, and even gaming chairs and tables in person.

Our goal is to create products that could extremely exert its effect by every user.