
9
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
1
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.