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.
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: Network Settings are not supported in BIOS boot mode.
Table 38. Network Settings details
Option Description
UEFI PXE Settings Enables you to control the configuration of the UEFI PXE device.
PXE Device n (n = 1 to 4) Enables or disables the device. When enabled, a UEFI PXE boot option is
created for the device.
PXE Device n Settings(n = 1 to 4) Enables you to control the configuration of the PXE device.
UEFI HTTP Settings Enables you to control the configuration of the UEFI HTTP device.
HTTP Device n (n = 1 to 4) Enables or disables the device. When enabled, a UEFI HTTP boot option is
created for the device.
HTTP Device n Settings (n = 1 to 4) Enables you to control the configuration of the HTTP device.
UEFI ISCSI Settings Enables you to control the configuration of the iSCSI device.
Table 39. PXE Device n Settings details
Option Description
Interface Specifies NIC interface used for the PXE device.
Protocol Specifies Protocol used for PXE device. This option is set to IPv4 or IPv6. This option is set to
IPv4 by default.
VLAN Enables Vlan for PXE device. This option is set to Enabled or Disabled. This option is set to
Disabled by default.
VLAN ID Shows the Vlan ID for the PXE device
VLAN Priority Shows the Vlan Priority for the PXE device.
Table 40. HTTP Device n Settings details
Option Description
Interface Specifies the NIC interface used for the HTTP device.
Protocol Specifies Protocol used for HTTP device. This option is set to IPv4 or IPv6. This option is set
to IPv4 by default.
Pre-operating system management applications 35
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