Lenovo ThinkPad P51s Hardware Maintenance Manual
![Lenovo ThinkPad P51s Laptop manual cover](/images/KoKQkpnZFFjQXFstmQYWtpix/thumbs/thumb175x175.webp)
To reset the BIOS password on a ThinkPad P51s, you typically need to remove the CMOS battery from the motherboard for a few minutes. Reinstall and boot up the laptop. If this does not work, contact Lenovo support, as BIOS password reset might require professional assistance.
First, ensure that the laptop is charged or connected to power. Try a hard reset by holding the power button for 10-15 seconds. If it still doesn't turn on, try removing the battery and pressing the power button for 30 seconds, then reattach the battery and power up. If the problem persists, consider checking for hardware issues or contacting support.
To improve battery life, adjust power settings to 'Power Saver' mode, reduce screen brightness, disable Bluetooth and unused ports, and regularly update the BIOS and drivers. Consider replacing the battery if it no longer holds a charge effectively.
To clean the fan, power off the laptop and unplug it. Remove the bottom cover by unscrewing the screws. Use compressed air to blow out dust from the fan and vents. Reattach the cover and screws once done. Avoid using a vacuum as it can create static.
Connect the external monitor using the HDMI or Mini DisplayPort. Press Windows + P to open the projection options and select the desired display mode. Ensure the monitor is set to the correct input source.
Ensure the touchpad is enabled by pressing Fn + F8 (or the appropriate key with the touchpad icon). Check the touchpad settings in the Control Panel. Update or reinstall the touchpad driver via Device Manager. If it remains unresponsive, check for hardware issues.
Power off the laptop and disconnect it from power. Remove the bottom cover by unscrewing the screws. Locate the RAM slots, release the existing RAM by pulling the clips aside, and insert the new RAM sticks. Ensure they are properly seated, then reattach the cover.
Ensure the laptop's vents are clear of obstructions. Clean the fan and vents with compressed air. Use the laptop on a hard, flat surface to improve airflow. Consider using a cooling pad and updating the BIOS and drivers to enhance thermal management.
To restore to factory settings, navigate to Settings > Update & Security > Recovery. Select 'Get started' under 'Reset this PC' and choose the option to remove everything. Follow the on-screen instructions to complete the process. Ensure to backup important data beforehand.
Restart your router and laptop. Ensure Wi-Fi is enabled on the laptop (press Fn + F8). Check for updates to the Wi-Fi driver via Device Manager. Run the Windows Network Troubleshooter and reset the network settings if necessary.