Owners Manual
NOTE: The NX Series systems support only BIOS mode. Do not change the boot mode to UEFI because the system will not load
the appliance OS when in UEFI mode.
Steps
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 the
same boot mode.
3
After the system boots in the specied 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 the boot order
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.
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.
System Security
You can use the System Security screen to perform specic functions such as setting the system password, setup password and disabling
the power button.
Viewing System Security
To view the System Security 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 nish 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 System Security.
System Security Settings details
The System Security Settings screen provides the following options:
Option
Description
Intel AES-NI Improves the speed of applications by performing encryption and decryption by using the Advanced Encryption
Standard Instruction Set (AES-NI). This option is set to Enabled by default.
System Password Sets the system password. This option is set to Enabled by default and is read-only if the password jumper is not
installed in the system.
Setup Password Sets the setup password. This option is read-only if the password jumper is not installed in the system.
Password Status Locks the system password. This option is set to Unlocked by default.
Pre-operating system management applications 29