Dell PowerEdge R930 - Page 19

Figure 9. AC PSU status indicator
1 AC PSU status indicator or handle
Table 9. Redundant AC PSU status indicator
Convention Power Indicator
Pattern
Condition
A Green A valid power source is connected to the PSU and the PSU is operational.
B Flashing green When the PSU rmware is being updated, the PSU handle ashes green.
CAUTION: Do not disconnect the power cord or unplug the PSU when updating
rmware. If rmware update is interrupted, the PSUs will not function. You must
roll back the PSU rmware by using Dell Lifecycle Controller. For more
information, see Dell Lifecycle Controller User’s Guide at Dell.com/idracmanuals.
C Flashing green and
turns o
When hot-adding a PSU, the PSU handle ashes green ve times at 4 Hz rate and turns
o. This indicates that there is a PSU mismatch with respect to eciency, feature set,
health status, and supported voltage.
CAUTION: For AC PSUs, use only PSUs with the Extended Power Performance
(EPP) label on the back.
NOTE: Ensure that both the PSUs are of the same capacity.
NOTE: Mixing PSUs from previous generations of Dell PowerEdge servers can
result in a PSU mismatch condition or failure to turn the system on.
D Flashing amber Indicates a problem in the PSU.
CAUTION: When correcting a PSU mismatch, replace only the PSU with the
ashing indicator. Swapping the other PSU to make a matched pair can result in
an error condition and unexpected system shutdown. To change from a High
Output conguration to a Low Output conguration or vice versa, you must turn
o the system.
CAUTION: AC PSUs support both 220 V and 110 V input voltages with the
exception of Titanium PSUs, which support only 220 V. When two identical
PSUs receive dierent input voltages, they can output dierent wattages, and
trigger a mismatch.
About the PowerEdge R930 19