Do not turn off your computer or disconnect from the power source while updating the BIOS as this could harm your computer. During the update, your computer will restart and you may briefly see a black screen.
Before updating, please read the installation instructions and important information noted below.
Dell Precision 5820 Tower and Precision 5820 Tower X-Series BIOS
Restart requiredAUTO INSTALLEDThis file was automatically installed as part of a recent update. If you are experiencing any issues, you can manually download and reinstall.
This file was automatically installed as part of a recent update. If you are experiencing any issues, you can manually download and reinstall.
This package contains the BIOS update for Dell Precision 5820 Tower and Precision 5820 Tower X-Series systems that run Windows 10 operating system. BIOS is a firmware that is embedded on a small memory chip on the system board. It controls the keyboard, monitor, disk drives and other devices.
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Dell Technologies recommends applying this update during your next scheduled update cycle. The update contains changes to maintain overall system health. It ensures that the system software remains current and compatible with other system modules (firmware, BIOS, drivers, and software) and may include other new features.
This is a large file. Depending on your connection speed, it may take some time to download.
Format Description:
This file format consists of a BIOS executable file. The Universal (Windows/MS DOS) format can be used to install from any Windows or MS DOS environment.
Note 1: Before updating the BIOS, ensure that you suspend BitLocker encryption on a BitLocker-enabled system. If BitLocker is not enabled on your system, you can ignore this step. Note 2: Do not turn off the power or interrupt the BIOS update process during the update.
Download and Installation 1. Click Download File, to download the file. 2. Click Save to save the file to your hard drive. 3. Browse to the location where you downloaded the file and double-click the new file. The system restarts automatically and updates the BIOS at the system startup screen. After the BIOS update is complete, system restarts again.
Need help with BIOS issues?
Find a solution in Dell's BIOS troubleshooting and usage guide.