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During computer use, various issues may arise, such as failure to boot, continuous restarting, or sluggish performance. Most of these problems can be resolved through simple inspections and troubleshooting. Below are some common computer malfunctions, their possible causes, and corresponding solutions.

Common Issue | Computer Slows Down and Becomes Laggy

Most common computer issues stem from hardware or software problems. However, using elimination and cross-testing methods can resolve most issues. 

If the problem persists, consider contacting the component manufacturer or a computer repair shop for further diagnosis!





During computer use, various issues may arise, such as failure to boot, continuous restarting, or sluggish performance. Most of these problems can be resolved through simple inspections and troubleshooting. Below are some common computer malfunctions, their possible causes, and corresponding solutions.



Common Issue | Computer Won’t Turn On







📍 Possible Causes





Power Issues: Power supply failure or forgetting to turn on the power switch.



Power Button Issues: Improperly connected case button or loose wiring.



🛠️ Solutions





Check if the power supply is functioning properly.



Inspect hardware installation, especially ensuring the RAM and power cables are securely connected.



Verify that the case button is correctly wired to the motherboard.



Common Issue | No Display After Booting







📍 Possible Causes





Monitor Issues: The screen is turned off, faulty, or the incorrect input source is selected.



Graphics Card Issues: The graphics card is faulty or not properly connected to the motherboard.



🛠️ Solutions





Ensure the monitor is powered on and receiving the correct signal input.



Reinsert the graphics card and clean the gold contacts using an eraser.



Test booting using an integrated GPU to check if the display works.



Common Issue | Computer Keeps Restarting







📍 Possible Causes





RAM is not properly installed.



The CPU cooler is not functioning correctly, causing the processor to overheat and shut down.



Insufficient power supply wattage, triggering automatic shutdown.



🛠️ Solutions





Reinsert the RAM and ensure it is firmly seated.



Check if the CPU cooler has thermal paste applied and is operating normally.



Use a power supply wattage calculator to verify if the power supply is sufficient.



Common Issue | Computer Slows Down and Becomes Laggy







📍 Possible Causes





Insufficient RAM capacity.



Lack of hard drive space or hard drive failure.



Too many running programs consuming CPU and RAM resources for extended periods.



🛠️ Solutions





Upgrade the RAM capacity.



Add a new hard drive or replace the existing one.



Use Task Manager (Ctrl + Shift + ESC) to close unnecessary programs.



Most common computer issues stem from hardware or software problems. However, using elimination and cross-testing methods can resolve most issues. 



If the problem persists, consider contacting the component manufacturer or a computer repair shop for further diagnosis!

Understand common issues and troubleshoot quickly.

Common Computer Malfunctions: Causes and Solutions

Power supplies can be categorized based on cable management into 

 types. These classifications mainly affect cable management convenience, installation flexibility, and overall tidiness inside the PC case.

A full modular power supply allows all cables connecting to the motherboard and other components to be detached. Users can choose which cables to install, making it more flexible for DIY builders and resulting in a cleaner cable management setup.

A semi-modular power supply has some fixed cables that cannot be removed, while others are detachable. This design offers a balance between flexibility and ease of use.

A non-modular power supply has all cables permanently attached, making it the most affordable but least convenient option for cable management.

✔ You prioritize clean and organized cable management.

✔ You frequently upgrade hardware and need flexible installations.

✔ You are on a tight budget and just need a cost-effective option.





Power supplies can be categorized based on cable management into full modular, semi-modular, and non-modular types. These classifications mainly affect cable management convenience, installation flexibility, and overall tidiness inside the PC case.



Full Modular Power Supply

A full modular power supply allows all cables connecting to the motherboard and other components to be detached. Users can choose which cables to install, making it more flexible for DIY builders and resulting in a cleaner cable management setup.







✅ Advantages





Allows installation of only the necessary cables, reducing clutter.



Easy to upgrade or replace cables without changing the entire power supply.



⚠️ Disadvantages





More expensive than semi-modular and non-modular power supplies.



Requires manual cable installation, which may not be beginner-friendly.



Semi-Modular Power Supply

A semi-modular power supply has some fixed cables that cannot be removed, while others are detachable. This design offers a balance between flexibility and ease of use.







✅ Advantages





The 24-pin motherboard and 8-pin CPU power cables are fixed, preventing mistakes during installation.



Reduces unnecessary cables, maintaining a cleaner PC interior.



⚠️ Disadvantages





Fixed power cables may create unnecessary clutter inside the case.



Harder to manage than a full modular PSU but still better than a non-modular one.



Non-Modular (Fixed Cable) Power Supply

A non-modular power supply has all cables permanently attached, making it the most affordable but least convenient option for cable management.







✅ Advantages





No need to install cables separately, simplifying the setup process.



Lower cost, making it a high-value option.



⚠️ Disadvantages





Excess cables can cause clutter, affecting airflow and aesthetics.



Harder to replace; if a cable fails, the entire PSU needs to be replaced.



Typically has lower efficiency ratings and is not ideal for mid-to-high-end hardware.



Which Power Supply Should You Choose?

You should consider a full modular power supply if:

✔ You have a higher budget.

✔ You prioritize clean and organized cable management.

✔ You frequently upgrade hardware and need flexible installations.

✔ You are using high-end components.







A semi-modular or non-modular power supply is sufficient if:

✔ You are on a tight budget and just need a cost-effective option.

✔ You are building an office PC.

✔ You do not need a dedicated GPU.





Power supplies are categorized into three main types based on how their cables are connected. Let’s take a quick look!

Ｗhat are Full Modular, Semi-Modular, and Non-Modular Power Supplies?

The development of Bluetooth technology has significantly impacted key aspects of wireless keyboards, such as connection stability, power consumption, and latency. The transition from Bluetooth 4.0 to 5.0 introduces major improvements in transmission range, connection reliability, and energy efficiency, enhancing the typing experience for wireless keyboard users.

Bluetooth 4.0, an early version of low-energy Bluetooth, is suitable for basic office tasks but lacks performance in fast typing or gaming scenarios.

Bluetooth 5.0 delivers significant advancements in transmission speed, connection stability, and reduced power consumption. For wireless keyboards, it minimizes input latency and extends battery life.

Bluetooth 5.0 offers a transformative upgrade for users seeking improved performance and reliability in wireless devices, particularly keyboards used in dynamic or demanding contexts.





The development of Bluetooth technology has significantly impacted key aspects of wireless keyboards, such as connection stability, power consumption, and latency. The transition from Bluetooth 4.0 to 5.0 introduces major improvements in transmission range, connection reliability, and energy efficiency, enhancing the typing experience for wireless keyboard users.



Features of Bluetooth 4.0

Bluetooth 4.0, an early version of low-energy Bluetooth, is suitable for basic office tasks but lacks performance in fast typing or gaming scenarios.







✅ Advantages





Energy Efficiency: Lower power consumption compared to earlier versions like Bluetooth 3.0.



Compatibility: Works with most operating systems (Windows, Mac, iOS, Android).



Office Use: Adequate for standard document input without noticeable delays.



⚠️ Limitations





Short Transmission Range: Connections may drop beyond 10 meters.



Slow Device Switching: Requires waiting time when switching between devices.







Features of Bluetooth 5.0

Bluetooth 5.0 delivers significant advancements in transmission speed, connection stability, and reduced power consumption. For wireless keyboards, it minimizes input latency and extends battery life.



✅ Advantages





Extended Range: Supports up to 40 meters indoors, ideal for larger spaces.



Lower Power Consumption: Improves keyboard battery life.



Enhanced Stability: Maintains smooth operation even in environments with interference.



Low Latency: Faster response times suitable for high-speed typing needs.



⚠️ Limitations





Higher Cost: Keyboards supporting Bluetooth 5.0 are more expensive.



Limited Compatibility with Older Devices: Devices using Bluetooth 4.0 may not fully utilize the benefits of version 5.0.



Bluetooth 4.0 vs. 5.0 Specifications





Choosing Between Bluetooth 4.0 and 5.0

Bluetooth 4.0 Keyboard Usage Scenarios





For basic office tasks and document processing.



If budget constraints exist.



When using older devices that only support Bluetooth 4.0.







Bluetooth 5.0 Keyboard Usage Scenarios





For stable connections in high-speed typing or gaming scenarios.



If longer battery life is desired.



When working in environments with potential interference or needing extended range.







Bluetooth 5.0 offers a transformative upgrade for users seeking improved performance and reliability in wireless devices, particularly keyboards used in dynamic or demanding contexts.

Quickly understand the features and differences between two generations of Bluetooth, and choose the right usage scenario.

Wireless Foundation for Smart Living: Features of Bluetooth 4.0 and 5.0

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