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UEFI boot mode (the default), is an enhanced 64-bit boot interface.
If you have configured your system to boot to UEFI mode, it replaces the system BIOS.
1
From the System Setup Main Menu, click Boot Settings, and select Boot Mode.
2
Select the UEFI boot mode you want the system to boot into.
CAUTION:
the same 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 systems
do 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.
Changing boot order
About this task
You may have to change the boot order if you want to boot from a USB key. You 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 you have selected BIOS for Boot Mode.
Steps
1
On the System Setup Main Menu screen, click System BIOS > Boot Settings > UEFI/BIOS Boot Settings > UEFI/BIOS Boot
Sequence.
2
Click Boot Option Settings > BIOS/UEFI Boot 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.
Network Settings
You can use the Network Settings screen to modify UEFI PXE, iSCSI, and HTTP boot 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 the
network controllers handles the network settings.
Viewing Network Settings
To 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 Setup
NOTE:
If your operating system begins to load before you press F2, wait for the system to finish booting, and then
restart your system and try again.
3
On the System Setup Main Menu screen, click System BIOS.
4
On the System BIOS screen, click Network Settings.
Switching the boot mode may prevent the system from booting if the operating system is not installed in
Pre-operating system management applications
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