Table 11. AC PSU status indicator codes
Power indicator codes
Condition
Green
A valid power source is connected to the PSU and the PSU is operational.
Blinking amber
Indicates a problem with the PSU.
Not illuminated
Power is not connected to the PSU.
Blinking green
When the firmware of the PSU is being updated, the PSU handle blinks green.
CAUTION:
Do not disconnect the power cord or unplug the PSU when updating firmware. If
firmware update is interrupted, the PSUs do not function.
Blinking green and turns off When hot-plugging a PSU, the PSU handle blinks green five times at a rate of 4 Hz and turns off. This
indicates a PSU mismatch with respect to efficiency, feature set, health status, or supported voltage.
CAUTION:
If two PSUs are installed, both the PSUs must have the same type of label; for
example, Extended Power Performance (EPP) label. Mixing PSUs from previous generations of
PowerEdge servers is not supported, even if the PSUs have the same power rating. This results
in a PSU mismatch condition or failure to turn the system on.
CAUTION:
When correcting a PSU mismatch, replace only the PSU with the blinking indicator.
Swapping the PSU to make a matched pair can result in an error condition and unexpected
system shutdown. To change from a high output configuration to a low output configuration or
vice versa, you must turn off the system.
CAUTION:
AC PSUs support both 240 V and 120 V input voltages with the exception of Titanium
PSUs, which support only 240 V. When two identical PSUs receive different input voltages, they
can output different wattages, and trigger a mismatch.
CAUTION:
If two PSUs are used, they must be of the same type and have the same maximum
output power.
LCD panel
The LCD panel provides system information, status, and error messages to indicate if the system is functioning correctly or requires
attention. The LCD panel can be used to configure or view the system’s iDRAC IP address. For more information about error messages, see
the
Dell Event and Error Messages Reference Guide
at
Dell.com/openmanagemanuals
>
OpenManage software
.
The statuses and conditions of the LCD panel are outlined here:
•
The LCD backlight is white during normal operating conditions.
•
When the system needs attention, the LCD backlight turns amber, and displays an error code followed by descriptive text.
NOTE:
If the system is connected to a power source and an error is detected, the LCD turns amber regardless of whether the
system is turned on or off.
•
When the system turns off and there are no errors, LCD enters the standby mode after five minutes of inactivity. Press any button on
the LCD to turn it on.
•
If the LCD panel stops responding, remove the bezel and reinstall it. If the problem persists, see the Getting help section.
•
The LCD backlight remains off if LCD messaging is turned off using the iDRAC utility, the LCD panel, or other tools.
18
Dell EMC PowerEdge R440 overview
