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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.
System health and system ID indicator codes
The system health and system ID indicator is located on the left control panel of your system.
Figure 10. System health and system ID indicators
System health and system ID
indicator code
Condition
Solid blue Indicates that the system is turned on, system is healthy, and system ID mode is not
active. Press the system health and system ID button to switch to system ID mode.
Blinking blue Indicates that the system ID mode is active. Press the system health and system ID
button to switch to system health mode.
Solid amber Indicates that the system is in fail-safe mode. If the problem persists, see the Getting
help section.
Blinking amber Indicates that the system is experiencing a fault. Check the System Event Log or the
LCD panel, if available on the bezel, for specific error messages. For information
about the event and error messages generated by the system firmware and agents
that monitor system components, go to qrl.dell.com > Look Up>Error Code, type
the error code, and then click Look it up.
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:
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. 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 > 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.
Pre-operating system management applications
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