Users Guide
Severity Message Cause
Warning The storage battery is low. ROMB battery is low.
Critical The storage battery failed. CMOS battery is not present or has no 
voltage.
Critical The CPU <number> <voltage sensor 
name > voltage is outside of the 
allowable range.
Critical The system board<voltage sensor name 
> voltage is outside of the allowable 
range.
Critical The mezzanine card <number> <voltage 
sensor name > voltage is outside of the 
allowable range.
Critical The storage <voltage sensor name > 
voltage is outside of the allowable range.
Critical CPU <number> has an internal error 
(IERR).
CPU failure.
Critical CPU <number> has a thermal trip (over-
temperature) event.
CPU overheated.
Critica CPU <number> configuration is 
unsupported.
Incorrect processor type or in wrong 
location.
Critical CPU <number> is absent. Required CPU is missing or not present.
Critical Mezz B<slot number> Status: Add-in 
Card sensor for Mezz B<slot number>, 
install error was asserted.
Incorrect Mezzanine card installed for IO 
fabric.
Critical Mezz C<slot number> Status: Add-in 
Card sensor for Mezz C<slot number>, 
install error was asserted.
Incorrect Mezzanine card installed for IO 
fabric.
Critical Drive <number> is removed. Storage Drive was removed.
Critical Fault detected on Drive <number>. Storage Drive failed.
Critical The system board fail-safe voltage is 
outside of the allowable range.
This event is generated when the system 
board voltages are not at normal levels.
Critical The watchdog timer expired. The iDRAC watchdog timer expires and no 
action is set.
Critical The watchdog timer reset the system. The iDRAC watchdog detected that the 
system has crashed (timer expired because 
no response was received from Host) and 
the action is set to reboot.
Critical The watchdog timer powered off the 
system.
The iDRAC watchdog detected that the 
system has crashed (timer expired because 
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