What is happening when I see a blinking green Power Supply Status LED?
- One blink per second means that the power supply is off, or in cold redundancy. Cold redundancy means one power supply is in an efficient low-power state, and it is not activated until it is needed.
- Two blinks per second means that the power supply is updating its firmware.
This power supply status is normal behavior.
What is happening when I see a blinking green System Status LED?
- The system has just had AC power applied.
- The system is operating in a redundant state but with an impending failure. For example, two redundant power supplies are installed, but one has failed or is predicted to fail.
- The system is in a Degraded state. The system is still functional, but a non-critical temperature or voltage issue has occurred.
- Memory configured as RAS has failed.
- Memory is transitioning to a warning state.
How to fix it
- Wait 20 seconds after applying power, before turning the system on.
- Update the motherboard system firmware to the latest version.
- If the issue persists, view the System Event Log (SEL) for reported issues. A SEL Viewer is part of the BIOS and Firmware Update, Configuration Utilities for Windows*, Linux*, WinPE*, and UEFI.
For complete LED information, see the Technical Product Specification (TPS) for your board or system.