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Figure 7. AC PSU status indicator
1. AC PSU status indicator/handle
Table 7. AC PSU status indicator codes
Power indicator codes
Green
Blinking amber
Not illuminated
Blinking green
Blinking green and turns
off
iDRAC Direct LED indicator codes
The iDRAC Direct LED indicator lights up to indicate that the port is connected and is being used as a part of the iDRAC
subsystem.
iDRAC Direct LED indicator is located below the iDRAC Direct port on the right control panel.
You can configure iDRAC Direct by using a USB to micro USB (type AB) cable, which you can connect to your laptop or tablet.
The following table describes iDRAC Direct activity when the iDRAC Direct port is active:
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 Precision Workstation 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.
Ensure that both the PSUs are of the same capacity.
NOTE:
Mixing PSUs (even the PSUs that have the same power rating) from previous
NOTE:
generations of Precision Workstation is not supported. This results in a PSU mismatch
condition or failure to turn the system on.
Disassembly and reassembly
21
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