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1. AC PSU status indicator/handle
Table 34. PSU Indicator
Power indicator codes
Green
Blinking amber
Not illuminated
Blinking green
Blinking green and turns off
Your system is identified by a unique Express Service Code and Service Tag number. You
can view the Express Service Code and Service Tag by pulling out the information tag
located on the front of the system. Alternatively, the information may be on the Mini
Enterprise Service Tag (MEST) label on the chassis, on the rear of the system. This
information is used by Razberi Technologies to route support calls to the appropriate
personnel.
Condition
A valid power source is connected to the PSU and the PSU is operational.
Indicates a problem with the PSU
Power is not connected to the PSU.
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.
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.
CAUTION:
Combining AC and DC PSUs is not supported and triggers a
mismatch.
System Information Label
M4 Overview
49
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