Dell Precision 7820 Owner's Manual

Also see for Precision 5820 Tower: Owner's manual Owner's manual Quick start guides Installation guide

Contents

NOTE: If BitLocker is enabled, it must be suspended prior to updating the system BIOS, and then re-enabled after the BIOSupdate is completed.1 Restart the computer.2 Go to Dell.com/support.• Enter the Service Tag or Express Service Code and click Submit.• Click Detect Product and follow the instructions on screen.3 If you are unable to detect or find the Service Tag, click Choose from all products.4 Choose the Products category from the list.NOTE: Choose the appropriate category to reach the product page5 Select your computer model and the Product Support page of your computer appears.6 Click Get drivers and click Drivers and Downloads.The Drivers and Downloads section opens.7 Click Find it myself.8 Click BIOS to view the BIOS versions.9 Identify the latest BIOS file and click Download.10 Select your preferred download method in the Please select your download method below window, click Download File.The File Download window appears.11 Click Save to save the file on your computer.12 Click Run to install the updated BIOS settings on your computer.Follow the instructions on the screen.NOTE: It is recommended not to update the BIOS version for more than three revisions. For example: If you want to update theBIOS from 1.0 to 7.0, then install version 4.0 first and then install version 7.0.Updating BIOS on systems with bitlocker enabledCAUTION: If BitLocker is not suspended before updating the BIOS, the next time you reboot the system it will not recognize theBitLocker key. You will then be prompted to enter the recovery key to progress and the system will ask for this on each reboot. Ifthe recovery key is not known this can result in data loss or an unnecessary operating system re-install. For more information onthis subject, see Knowledge Article: http://www.dell.com/support/article/us/en/19/SLN153694/updating-bios-on-systems-with-bitlocker-enabled?lang=ENUpdating your system BIOS using a USB flash driveIf the system cannot load into Windows but there is still a need to update the BIOS, download the BIOS file using another system and saveit to a bootable USB Flash Drive.NOTE: You will need to use a bootable USB Flash drive. Please refer to the following article for further details: http://www.dell.com/support/article/us/en/19/SLN143196/how-to-create-a-bootable-usb-flash-drive-using-dell-diagnostic-deployment-package--dddp-?lang=EN1 Download the BIOS update .EXE file to another system.2 Copy the file e.g. O9010A12.EXE onto the bootable USB Flash drive.3 Insert the USB Flash drive into the system that requires the BIOS update.4 Restart the system and press F12 when the Dell Splash logo appears to display the One Time Boot Menu.5 Using arrow keys, select USB Storage Device and click Return.6 The system will boot to a Diag C:\> prompt.7 Run the file by typing the full filename e.g. O9010A12.exe and press Return.8 The BIOS Update Utility will load, follow the instructions on screen.System Setup 85