1 From the System Setup Main Menu, click Boot Settings, and select Boot Mode.2 Select the boot mode you want the system to boot into.CAUTION: Switching the boot mode may prevent the system from booting if the operating system is not installed in thesame boot mode.3 After the system boots in the specified boot mode, proceed to install your operating system from that mode.NOTE: Operating systems must be UEFI-compatible to be installed from the UEFI boot mode. DOS and 32-bit operating systemsdo not support UEFI and can only be installed from the BIOS boot mode.NOTE: For the latest information about supported operating systems, go to Dell.com/ossupport.Related linksBoot SettingsBoot Settings detailsViewing Boot SettingsChanging the boot orderYou may have to change the boot order if you want to boot from a USB key or an optical drive. The following instructions may vary if youhave selected BIOS for Boot Mode.1 On the System Setup Main Menu screen, click System BIOS > Boot Settings.2 Click Boot Option Settings > Boot Sequence.3 Use the arrow keys to select a boot device, and use the plus (+) and minus (-) sign keys to move the device down or up in the order.4 Click Exit, and then click Yes to save the settings on exit.Related linksBoot SettingsBoot Settings detailsViewing Boot SettingsNetwork SettingsYou can use the Network Settings screen to modify PXE device settings. The network settings option is available only in the UEFI mode.NOTE: The BIOS does not control network settings in the BIOS mode. For the BIOS boot mode, the optional Boot ROM of thenetwork controllers handles the network settings.Related linksUEFI iSCSI SettingsNetwork Settings screen detailsUEFI iSCSI Settings detailsSystem BIOSViewing Network SettingsViewing UEFI iSCSI SettingsViewing Network SettingsTo view the Network Settings screen, perform the following steps:1 Turn on, or restart your system.2 Press F2 immediately after you see the following message:F2 = System SetupNOTE: If your operating system begins to load before you press F2, wait for the system to finish booting, and then restartyour system and try again.3 On the System Setup Main Menu screen, click System BIOS.Pre-operating system management applications 39
