Dell PowerEdge R840 EMC Technical Specifications - Page 30

Power supply unit indicator codes

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Status Link indicator is blinking green, and activity is off. Condition NIC identify is enabled through the NIC configuration utility. Power supply unit indicator codes AC power supply units (PSUs) have an illuminated translucent handle that serves as an indicator. The DC PSUs have an LED that serves as an indicator. For more information about the PSU specifications, see Technical Specifications. For information about the event and error messages generated during POST, when a 2400W PSU is connected to a 110 V power source, see the Dell Event and Error Messages Reference Guide at www.dell.com/openmanagemanuals. The indicator shows whether power is present or if a power fault has occurred. Figure 23. AC PSU status indicator 1. AC PSU status indicator/handle Table 28. AC PSU status indicator codes Power indicator codes Green Blinking amber Not illuminated Blinking green Blinking green and turns off 30 System diagnostics and indicator codes 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 cable, 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 concerning 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 on the system. 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

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Status
Condition
Link indicator is blinking green, and activity is off.
NIC identify is enabled through the NIC configuration utility.
Power supply unit indicator codes
AC power supply units (PSUs) have an illuminated translucent handle that serves as an indicator.
The DC PSUs have an LED that serves as an indicator.
For more information about the PSU specifications, see
Technical Specifications
.
For information about the event and error messages generated during POST, when a 2400W PSU is connected to a 110 V power source,
see the Dell Event and Error Messages Reference Guide at
www.dell.com/openmanagemanuals
.
The indicator shows whether power is present or if a power fault has occurred.
Figure 23. AC PSU status indicator
1.
AC PSU status indicator/handle
Table 28. 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 cable, 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
concerning 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 on the system.
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
30
System diagnostics and indicator codes