# Troubleshooting: Power Issues

> CAUTION: Do not attempt to service the system except as explained in the documentation. Only trained service technicians should remove the system cover to access any of the internal components. Refer to the documentation for your server for complete safety information before attempting to service your system.

Following are some possible power problems:

- If you turn on the AC, the power supply LED is on, and power supply fans are running, but the system and Service Processor will not boot, replace the motherboard and then retry the power supply.
- If you turn on the AC but there is no power or the front-panel status LCD indicates a problem with the power supply, replace the power supply.
- Check the AC source to ensure it is plugged in and the switch is on.

The System Status screen includes an image of the power supply with a status indicator. You can display all sensors to view various voltage, fan, etc. sensors associated with the power supply and their status. Problems with these sensors will generate an event associated with the power supply.

Refer to the documentation for your server for instructions on installing or replacing a power supply.

After installing a new power supply, allow several seconds for the system to recognize the power supply and determine whether it is working properly. The power indicator lights up green to signify that the power supply is functioning properly.

Also check your power supply component and platform power.

Related Topics

Troubleshooting the Service Processor