There are several steps to follow in order to identify the component which is causing the issue.

You can also use the Dell Server Troubleshooting guide.

Table of Content:

  1. Check the power path
  2. Known Fixes for PSUs

Step 1: Check the power path

There are a lot of different components involved in providing power to a server. Each of these should be checked from the original power source to the server itself:

  • Wall socket : try plugging another device in that socket or plug the power cable into another working wall socket or plug.
  • UPS - Uninterrupted Power Supply : installed to avoid loss of power, an issue with a UPS can cause power issues as well. Please check the user manual of your UPS to ensure it's working properly. You can also by-pass the UPS and plug the server directly into a wall socket for testing purposes.
  • Power Cable : a cable can be damaged and swapping it with another cable is a good way of ruling this component out.
  • PSU - Power Supply Unit : the power supply can be having issues as well. The simplest test is to swap the PSU with another one to see what happens.
  • PDB - Power Distribution Board : This component is only available on servers where there are 2 PSUs. If after swapping the 2 PSUs, the issue remains on the same slot and doesn't follow the PSU, then it's possible that the PDB is impacted.

Step 2: Known Fixes for PSU

Here is a list of articles for certain known technical fixes that might correspond to the symptoms you are seeing:

  • SLN293489: 12G PowerEdge and PowerVault Delta Power Supply Unit (PSU) Fan Failure
  • SLN285772: CMC is Reporting Incorrect States of Power Supply
  • SLN170772: PowerEdge Power Supply Configuration and Troubleshooting

You can also review the PSU How-to page for more information.