Option Description
NOTE: This option control the UEFI boot order. The first option in the list will
be attempted first.
Table 20. UEFI Boot Settings
Option Description
UEFI Boot Sequence Enables you to change the boot device
order.
Boot Options Enable/Disable Enables you to select the enabled or
disabled boot devices
Choosing system boot mode
System Setup enables you to specify one of the following boot modes for installing your operating system:
• 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: Switching the boot mode may prevent the system from booting if the operating system is not installed in
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 www.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 or an optical drive. The following instructions may vary if you
have selected BIOS for Boot Mode.
NOTE:
Changing the drive boot sequence is only supported in BIOS boot mode.
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, and 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.
NOTE:
You can also enable or disable boot order devices as needed.
Network Settings
To view the Network Settings screen, power on the system, press F2, and click System Setup Main Menu > System BIOS >
Network Settings.
NOTE:
For information about Linux network performance settings, see the
Linux Network Tuning Guide for AMD EPYC
Processor Based Servers
at AMD.com.
NOTE: Network Settings are not supported in BIOS boot mode.
Table 21. Network Settings details
Option Description
UEFI PXE Settings Enables you to control the configuration of the UEFI PXE device.
Pre-operating system management applications 29
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