User`s guide

User Guide
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Diagnostic LEDs
The motherboard features several onboard diagnostic LEDs to assist in troubleshooting
issues caused by the motherboard.
This section provides the LEDs locations and meanings.
Table 19: LEDs Summary
Name Colour Condition What it describes
Power/Sleep (S1/S3) Green ON Power On
Green BLINK Sleep (S1/S3)
- OFF Power Off (also S4)
Status Front Panel and
Baseboard
Green ON System READY
Green BLINK System Degraded (memory, CPU failure)
Amber ON BW/BIOS: Fatal Alarm. Post error/NMI event.
FW only: CPU/Terminator missing, Fan,
Temperature, Voltage, visible if fatal error
causes a power down.
Amber BLINK FAN alarm, Temperature or Voltage non-critical
alarm, Drive fault.
-OFF
FANS - OFF
Amber ON BW/BIOS: In redundant fan systems, if one or
more fans are missing during POST, BIOS
should turn on LED.
FW only: Fan failure only.
CPU - OFF
Amber ON Fatal alarm. CPU/Terminator missing/CPU
failure
DIMM - OFF
Amber ON Memory failure - fatal.
Progress code See Flash tab for details of the code.
GEM424 (SATA/SAS)
Note: Amber ON and
Grenn OFF indicates it is
OK to remove the HDD
Green OFF HDD in Standby/Stopped. HDD may be
removed. LED normally OFF.
Green BLINK 1s Spin-up/Spin-down
LED ON for 0.5s, OFF for 0.5s, 50% duty-cycle
of 1s
Green ON Active/Idle power.
Green BLINK 2s Formatting
LED ON for 1s, OFF for 1s, 50% duty-cycle of
2s
Amber ON Fault
Amber BLINK Flashing - ON for 1s, OFF for 1s, 50% duty-
cycle of 2s
Indicates rebuild.
Power Supply
HDD ACTIVITY Green BLINK Hard Disk Drive Access
- OFF No Access