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Front panel LED indicators
Below table lists the LED states on the front panel.
LED Color Status Description
Power Green On Power on
Blinking System in ACPI sleep mode.
Status Green On System in normal mode.
Green Blinking • Defective CPU
• Defective DIMM
Amber Blinking • Redundant fan failure
• Redundant power supply
failure
• Non-critical temperature and
voltage failure
Amber On • Critical power supply failure
• Voltage power supply failure
• Critical temperature and
voltage failure
Off • POST error
• NMI event
• Missing CPU or terminator
HDD Green Blinking HDD activity
Off No HDD activity
Amber On HDD failure
The HDD LED will light green
when the four-bay hot-plug
cage is installed in the chassis.