HP ProBook 640 G1 Overheating

An accumulation of dust is one of the main causes of overheating. Dust buildup can clog air vents and fans, preventing heat from escaping and causing the laptop to overheat. Luckily, this is an easy problem to fix. To start, check the air vents on the outside of the laptop. Shine a bright light into them and look for dust buildup. If dust is present, use compressed air to lightly blow on the air vents to remove the dust. Next, open the laptop and locate the fans. Using a small brush or compressed air, gently clean the dust off of the fans. Make sure to hold the fans in place while cleaning them, as too much spinning could cause an electrical short and damage the device. For help opening the laptop, refer to this guide: Disassembling HP ProBook 640 G1

An outdated Operating System can cause a computer to slow down and overheat. In your computer’s system settings, navigate to “Update & Security”, then go to “Windows Update” and click “Check for Updates”. If an update is available, download it, then restart the computer once complete.

If your computer is running too many programs concurrently, it may slow down and begin to overheat. If you have several demanding programs or applications open, try closing one or more of them and see if this resolves the issue. If not, press ctrl+shift+esc to open Task Manager. Here, you can see what programs are using the most of your computer’s resources. Try closing some of the most demanding applications and background tasks. Be careful when closing background tasks, as some of them are vital to your computer’s operation. Only close background tasks you recognize as applications, such as any Microsoft Office applications, and any applications or games you have downloaded.

Outdated or damaged fans may spin slower than expected or not at all. This reduces airflow and limits the laptop's ability to cool down and as a result, the system overheats and underperforms. Older fan models that are unable to meet cooling requirements, loose or damaged connectors that cut power, worn-out bearings that slow down the fan, and incorrect BIOS fan control settings are common causes.

When the fans are old or damaged, the best course of action is to assess and clean the cooling system to remove any dust or debris that may be blocking airflow. If the fan is still not spinning properly, make sure the fan connector is properly attached and undamaged. To restore proper cooling, due to the fan not spinning or producing grinding sounds, the fan unit typically needs to be replaced. If the issue is caused by incorrect BIOS fan control settings, updating or resetting the BIOS can restore proper fan operation. For detailed instructions on removing and replacing the fan, refer to our repair guide: Fan Replacement

Over time, batteries lose their ability to hold charge. This can lead to the battery overheating. If you feel heat near the back of the laptop, this could indicate issues with the battery. First, plug a charging cord into the laptop’s charging port and let it charge to full battery. If the battery becomes too hot to touch, the battery is likely faulty and needs to be replaced. You can also check your battery condition with a console command. To do this, find “Command Prompt” in your start menu and open it. Then, type “powercfg /batteryreport” (without the quotation marks) and press Enter. This will give you detailed information regarding your laptop’s battery, including its health and full charge capacity. If the battery’s condition is poor, you may want to replace the battery. For detailed instructions on how to replace the battery, refer to our repair guide: Battery Replacement