Preventing Overheating in Desktop PCs Which action best helps prevent a computer from overheating during normal operation?

Introduction / Context:
Thermal management in desktop PCs depends on designed airflow through specific intake and exhaust paths. Correct chassis configuration is essential to move heat away from the CPU, GPU, VRMs, storage, and power supply components.

Given Data / Assumptions:

• Typical ATX or similar case with front intake and rear/top exhaust fans.
• CPU cooler and PSU fan rely on controlled airflow paths.
• System is operating in a standard office or home environment.

Concept / Approach:

The case is engineered to channel cool air across hot components. Removing covers or slot blanks disrupts pressure and airflow, often creating hot spots. Keeping the cover closed maintains intended ducting and static pressure, improving heatsink and fan effectiveness and dust filtration performance.

Step-by-Step Solution:

Verification / Alternative check:

Temperature readings before and after closing the case typically show lower CPU and system temperatures with proper ducting. OEM thermal guidance emphasizes closed-case operation for consistent cooling and acoustics.

Why Other Options Are Wrong:

Remove the slot cover from the back: Breaks designed airflow channels and can raise temperatures. Remove the CPU fan: Catastrophic—removes primary cooling from the processor. All of the above: Cannot be correct because the other actions are harmful. None of the above: Incorrect because keeping the cover closed is beneficial.

Common Pitfalls:

Running with side panels off; ignoring dust buildup; poor cable management blocking airflow; reversed fan orientation.

Final Answer:

Keep the computer cover closed