Dell Precision 7820 Owner's Manual

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

Contents

Figure 1. DOS BIOS Update ScreenUpdating the Dell BIOS in Linux and Ubuntu environmentsIf you want to update the system BIOS in a Linux environment such as Ubuntu, see http://www.dell.com/support/article/us/en/19/SLN171755/updating-the-dell-bios-in-linux-and-ubuntu-environments?lang=EN.Flashing the BIOS from the F12 One-Time boot menuUpdating your system BIOS using a BIOS update .exe file copied to a FAT32 USB key and booting from the F12 one time boot menu.BIOS UpdateYou can run the BIOS update file from Windows using a bootable USB key or you can also update the BIOS from the F12 One-Time bootmenu on the system.Most Dell systems built after 2012 have this capability and you can confirm by booting your system to the F12 One-Time Boot Menu to seeif BIOS FLASH UPDATE is listed as a boot option for your system. If the option is listed, then the BIOS supports this BIOS update option.NOTE: Only systems with BIOS Flash Update option in the F12 One-Time Boot Menu can use this function.Updating from the One-Time Boot MenuTo update your BIOS from the F12 One-Time boot menu, you will need:• USB key formatted to the FAT32 file system (key does not have to be bootable)• BIOS executable file that you downloaded from the Dell Support website and copied to the root of the USB key• AC power adapter connected to the system• Functional system battery to flash the BIOSPerform the following steps to execute the BIOS update flash process from the F12 menu:CAUTION: Do not power off the system during the BIOS update process. Powering off the system could make the system fail toboot.1 From a power off state, insert the USB key where you copied the flash into a USB port of the system .2 Power on the system and press the F12 key to access the One-Time Boot Menu, Highlight BIOS Flash Update using the arrow keysthen press Enter.86 System Setup