Bios' Deep sleep Control disabled results in impossibility of shutting down.

Hello everybody,

I have an Optiplex 7040 desktop and I would like to use the Wake on Lan.

I saw I need to disable Deep Sleep control in the Bios and it's what I did.

Nevertheless, my computer doesn't shutdown anymore. I am using Centos 7 and using the GUI or the command line with shutdown or poweroff, the computer shuts down but restarts automatically after 2-3seconds. No exception!

The Wake on Lan is still disabled. And I also try without Ethernet cable.

Is it a normal behavior ?

Thank you,

Regards,