Dell Inspiron 14R 5420 Owner's Manual
![Dell Inspiron 14R 5420 Laptop manual cover](/images/bUZTqgGvwyLNlrIJArigIrAE/thumbs/thumb175x175.webp)
To reset the BIOS password, you will need to reset the CMOS battery or contact Dell support for assistance, as unauthorized methods may void your warranty.
The Dell Inspiron 14R 5420 supports up to 8GB of DDR3 RAM.
To improve battery life, reduce screen brightness, disable unused peripherals, and use the Dell power management settings to optimize performance.
Ensure the vents are not blocked, clean out dust using compressed air, and consider using a cooling pad to improve airflow.
To perform a factory reset, restart the laptop and press F8 to enter Advanced Boot Options, then select 'Repair Your Computer' and follow the on-screen instructions.
The Dell Inspiron 14R 5420 supports 2.5-inch SATA SSDs and HDDs.
Visit the Dell Support website, enter your laptop's service tag, download the latest drivers, and follow the installation instructions.
Running slow could be due to disk fragmentation, insufficient RAM, or malware. Run disk cleanup, defragment your drive, upgrade RAM, and scan for viruses to improve performance.
Click on the Wi-Fi icon in the taskbar, select your network from the list, enter the password, and click 'Connect'.
Ensure your graphics drivers are up to date, check the display cable connections, and adjust the screen refresh rate in the display settings.