I have an HP ProLiant DL580 G5 whose power button does not work. The server runs, but the button does nothing.

Unfortunately, the server has turned off, and I guess my "boot on power" settings did not stay. I also know nothing about ILO, but maybe it's an option?

How do I turn on this server without a working power button?


In the future, know that the power button is simply a momentary contact switch. This means there are two wires and jumping them together for a split second with anything will energize (or deenergize, if held for a few seconds) the host.


We found that the connector from the front panel was disconnected from the motherboard. Reconnecting fixed the issue.

  • How did u find that connector? Can u send some picture pls? I bought that dl today for whooping 300$ and once it turned, make noise when power cables connected, but power button stays black all time :( – yourstruly Sep 9 '20 at 23:14

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