Dell EMC ME4 Series Owner's Manual page 35

Table 13. PCM LED states
PCM OK Fan Fail
(Green) (Amber)
Off Off
Off Off
On Off
On Off
Off On
Off On
Off Blinking
Ops panel LEDs
The Ops panel displays the aggregated status of all the modules. See
following table.
Table 14. Ops panel LEDs
System Module
Power Fault
(Green/ (Amber)
Amber)
On Off
On On
On Off
On On
On On
On On
On Blink
On Blink
X= Disregard
Actions:
• If the Ops panel Module Fault LED is on, check the module LEDs on the enclosure rear panel to narrow the fault to a CRU, a
connection, or both.
• Check the event log for specific information regarding the fault, and follow any Recommended Actions.
• If installing an IOM CRU:
– Remove and reinstall the IOM per the instructions in
AC Fail DC Fail
(Amber) (Amber)
Off Off
On On
Off Off
Off On
Off Off
On On
Blinking Blinking
Identity LED display
(Blue)
Off X
On On
Off X
X X
X X
X X
X X
X X
X Blink
Status
No AC power on any PCM
No AC power on this PCM only
AC present; PCM working correctly
PCM fan speed is outside acceptable limits
PCM fan has failed
PCM fault (above temperature, above voltage, above current)
PCM firmware download is in progress
2U enclosure Ops
Associated LEDs /
Alarms
PCM fault LEDs, fan
fault LEDs
SBB module LEDs
No module LEDs
Module status LED on
SBB module
PCM fault LEDs, fan
fault LEDs
Replacing an IOM.
panel. The Ops panel LEDs are defined in the
Status
5V standby power present, overall power failed or
switched off
Ops panel power on (5s) test state
Power on, all functions good
Any PCM fault, fan fault, above or below
temperature
Any SBB module fault
Enclosure logical fault
Unknown (invalid or mixed) SBB module type
2
installed, I C bus failure (inter-SBB
communications). EBOD VPD configuration error
Unknown (invalid or mixed) PCM type installed or
2
I C bus failure (PCM communications)
Enclosure identification or invalid ID selected
Troubleshooting and problem solving 35