Chassis SC822 User's Manual Power Supply The chassis features high efficiency power supply module. New units can be ordered directly from Supermicro or authorized distributors. This power supply is auto-switching capable. This feature enables it to automatically sense the input voltage and operate at a 100-120v or 180-240v. Power Supply LEDs On the rear of the power supply module, an LED displays the status. Solid Green : When illuminated, indicates that the power supply is on. Solid Amber : When illuminated, indicates the power supply is plugged in and turned off, or the system is off but in an abnormal state. Blinking Amber :
When blinking, this system power supply temperature has reached 63C. The system will automatically power-down when the power supply temperature reaches 70C and restart when the power supply temperature goes below 60C. Replacing the Power Supply Module 1. Unplug the AC cord from the power supply module. 2. Open the top cover of chassis. 3. Disconnect all the cables between power supply, and the motherboard and backplane, noting where they go. 4. Unscrew two screws on the right side of chassis. 5. Remove the power supply from chassis carefully. 6. Put the power supply replacement into the same place. 7. Tighten two screw on the right side of chassis. 8.
Reconnect all the cables from the power supply to the motherboard and backplane. 9. Close the top cover and replace the AC cord. 34