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Startup-Shutdown sequence
Precision 7920 Rack BIOS is pure UEFI with a legacy compatibility layer. This layer is called the Compatibility
NOTE:
Support Module.
New POST display
The following are the POST display enhancements:
● The look of the boot process has been revamped for Precision 7920 Rack.
● The Dell high-resolution splash screen displays instantly after power-on.
● Both a progress bar and descriptive text appear on-screen.
● Hotkey behavior remains unchanged (<F2> still takes you to System Setup).
● There is a uniform look and feel through the boot process (one exception — the system will drop to text mode briefly to run
legacy option ROMs when booting in legacy mode).
● POST error messages are now compliant with Error Exception Message Initiative (EEMI).
All POST error and warning messages will be logged in the LC log.
NOTE:
● UEFI option ROMs display error/warning messages on the screen via the Driver Health Protocol (DHP). The auto-repair logic
is also included in Boot Device Selection (BDS) just before booting. Show the repair GUI and load the controller formset if
EfiDriverHealthStatsuConfigurationRequired status is returned.
Enhanced boot support
The following lists the boot support enhancements:
● Enhanced method to change the boot list based on Fully Qualified Descriptors (FQDDs). This allows for systems
management consoles and the factory to specify a boot list for devices that are not currently present, for example, disabled
NDC or other boot mode.
● New ability to toggle between LC and BIOS.
● The Boot Manager (<F11>) and BIOS Setup (<F2>) will only contain the boot option enumeration of the current Boot mode.
● Completely revised boot flow.
Diagnostics and indicators
The following pages contain the information about diagnostics and indicators for Precision 7920 Rack.
Chassis LEDs
The following pages contain the information about the chassis LEDs.
Status LED indicators
The diagnostic indicators are not present if the system is equipped with an LCD display.
NOTE:
The status LED indicators are always off and only turns on to a solid amber if any error occurs.
NOTE:
Table 4. Status LED indicators and descriptions (continued)
Icon
Description
Health indicator
Condition
The indicator turns solid blue if the
is in good health.
The indicator blinks amber:
● When the is turned on.
Corrective action
None required.
Check the System Event Log or system messages
for the specific issue. For more information
Disassembly and reassembly
17
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