OptiPlex 9020 behaviour during tension (I asked a few months back, but now I see the same thing in another new machine)

I bought Optiplex 9020 MT a few months back, and last month I get another for my brother.

I noticed the strange behavior (maybe it is normal) but I want to confirm what is happening when I turn on UPS/Direct connection.

It will blink DVD, HARD drive, and when the light orange power. After that, it works fine and no problem.

Here, I have created video for that behavior so it help to what I'm trying to say.

www.YouTube.com/watch

When you turn on the power to the inverter, the PC thinks it recovers from a power failure. So he turns himself briefly to see what it is supposed to do during a power failure recovery.

As stated in the Manual, recovery of the CA in the BIOS options are:

  • Power Off (default value)
  • Power on
  • Last power state

When the BIOS is set to default, the PC comes on, sees that it is the default and turns off again. That's why you see all the lights are flashing. It is quite normal...

If you wish, you can set the BIOS to power on so as soon as you turn on the power to the inverter, the PC will boot without having to press the power button.

To enter the BIOS to make the change, restart, and then press F2 before Windows starts to load.

Tags: Dell Desktop

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