The fans in a computer help circulate air to maintain an optimal temperature of the internal components. Your Dell computer can overheat if there is insufficient air flow due to dust or debris blocking the air vents, exhaust ports, or a clogged fan causing performance issues. See the suggested quick steps below if you are experiencing any of the following symptoms.
This application ensures your computer has the latest Dell driver and BIOS updates and checks settings to keep your computer efficient and reliable.
Blocked air vents can cause serious performance issues by restricting airflow, this can cause the processor, system memory (RAM), and other hardware to overheat, which may lead to a potential hardware failure. Excessive heat can also cause a significant decrease in performance as most processors automatically reduce the speed of the processor to help compensate for heat-related problems. If you notice the computer fan running constantly and making an abnormal or loud noise, this might indicate that the computer is not running as efficiently as possible, and/or clogged air vents.
It is important to keep dust from accumulating in your computer and ensure adequate ventilation to help reduce heat. Lint and dust accumulation prevents air from flowing around the cooling fins and causes the fan to work harder.
Your Dell computer may contain several fans to keep the internal components cool:
CAUTION: Turn off your computer and disconnect the power cable or AC adapter before using compressed air to clean your computer. Follow the instructions on the side of the compressed air can. Using compressed air incorrectly can damage your computer.
CAUTION: Do not try to blow the dust using your mouth. Moisture can cause irreparable damage to electronic and electrical components inside the computer.
WARNING: Desktop power supply units (PSU) are also equipped with a fan. Do not attempt to open the power supply to clean the fans. Ensure to turn off the computer and disconnect the power cables and use a compressed air can to clean any dust or debris.
To clean the air vents on your Dell computer, perform the following steps.
Having the latest Operating System updates installed on your Windows computer keeps it efficient and reliable.
See Microsoft Knowledge Base Article Get the latest Windows update for information on how to get the latest Windows updates on your computer.
You can use the Dell Power Manager (applicable for select Dell laptops) to control the processor and cooling fan settings to manage performance, computer surface temperature, and fan noise.
For more information, see Dell Knowledge Base article Guide to Dell Power Manager.
The quick test finds the most common problems and tells you how to fix them. The diagnostics include tests on the Processor and Video fans.
To run the diagnostics, browse to the SupportAssist hardware quick test page (the test starts automatically).
If the test fails, contact Dell Technical Support.
If these quick steps did not resolve your issue, we have more detailed information in the Other Resources section. You can also search for content related to the issue using the search bar at the top of this page.