Dell OptiPlex 980 Small Service Manual
![Dell OptiPlex 980 Small Desktop manual cover](/images/RvXpqWFCqERtbgtHGedWHrEY/thumbs/thumb175x175.webp)
To perform a factory reset on your Dell OptiPlex 980, restart the computer and press F8 repeatedly to access the Advanced Boot Options. Select "Repair Your Computer," then choose "Dell Factory Image Restore." Follow the on-screen instructions to complete the reset.
Download the latest BIOS update from Dell's official website. Run the downloaded file and follow the prompts to update the BIOS. Ensure the system remains powered on and connected to a reliable power source during the update.
Check the power cable and connections. Try a different power outlet. If the issue persists, test with a known good power supply or seek assistance from Dell support if the power supply is suspected to be faulty.
Ensure all cables are properly connected. Remove any recently added hardware and reset the BIOS to default settings. If the problem persists, run Dell's built-in diagnostics by pressing F12 at startup.
Turn off the computer and unplug it. Open the case and use compressed air to gently remove dust from components, especially the fans and heat sinks. Avoid touching internal parts with your hands.
Regularly update the operating system and drivers, clean dust from the interior, check for malware, and ensure backups are up to date. Periodically review system performance and storage use.
Upgrade the RAM and consider adding an SSD for faster data access. Optimize the system by removing unnecessary startup programs and periodically defragment the hard drive if not using an SSD.
Power down and unplug the computer. Open the case, locate the CMOS battery on the motherboard, and gently remove it. Replace with a new CR2032 battery, ensuring the positive side faces up.
Ensure the computer has a compatible graphics card. Connect each monitor to the available video outputs (such as VGA, DVI, or DisplayPort). Configure the display settings in the operating system's control panel.
Check the audio connections and ensure that the speakers or headphones are properly connected. Verify that the audio device is enabled in the BIOS. Update or reinstall the audio drivers through the Device Manager.