Choose system boot mode
System Setup enables you to specify the boot mode for installing your operating system.
About this task
UEFI boot mode (the default) is an enhanced 64-bit boot interface. When you have configured your system to boot to UEFI
mode, it replaces the system BIOS.
Steps
1. From the System Setup Main Menu, click Boot Settings, and select Boot Mode.
2. Select the UEFI boot mode that you want the system to boot into.
CAUTION: If the operating system is not installed in the same boot mode, switching the boot mode may
prevent the system from booting.
3. After the system boots in the specified boot mode, 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
systems do not support UEFI and can only be installed from the BIOS boot mode.
For the latest information about supported operating systems, go to www.dell.com/ossupport.
Change the boot order
If you want to boot from a USB drive or an optical drive, you may have to change the boot order.
About this task
Changing the drive boot sequence is supported only in BIOS boot mode.
If you have selected BIOS as the Boot Mode, the following instructions may vary.
Steps
1. On the System Setup Main Menu screen, click System BIOS > Boot Settings > UEFI Boot Settings > UEFI Boot
Sequence.
2. Use the arrow keys to select a boot device. Use the plus (+) and minus (-) sign keys to move the device down or up in the
order.
3. Click Exit, and then click Yes to save the settings on exit.
You can also enable or disable boot order devices as needed.
Network settings
In the BIOS, access Network Settings to view details.
About this task
Network Settings are not supported in BIOS boot mode.
Steps
1. To view the Network Settings screen, power on the system and press F2.
2. Click System Setup Main Menu, System BIOS, and then Network Settings.
The following table provides the details of the options available on the Network Settings screen.
Table 20. Network Settings details options
Option Description
UEFI PXE Settings Enables you to control the configuration of the UEFI PXE device.
30 Pre-operating system management applications
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