Power via USB

dmi3

Hello. I have a CER7 computer. It works fine. However, when it is turned off, power continues to be supplied to connected devices, for example, to my sound card, which is connected to the computer only by a USB cable. A LED on the sound card is always ON.

How can I turn off USB power in the BIOS when the computer is turned off?

tuiguang10

Hello there,

Our machine has a wake on lan function, if the machine is completely powered off, this function will not work properly. Therefore, when the machine is connected to the power supply, even if it is turned off, the external interface of the machine will have electricity.

And the function can`t be turn off in the BIOS.

Have a nice day！

Trachused

To turn off USB power when your CER7 computer is off:

Enter the BIOS (press DEL or F2 at startup).

Find and enable the setting called ErP or ErP Ready (usually under Power Management).

Save and exit the BIOS.

This will stop USB ports from supplying power when the PC is shut down.

tuiguang10

Trachused replied at 2025-04-29 15:39
To turn off USB power when your CER7 computer is off:

Enter the BIOS (press DEL or F2 at startup).

Hello there,

Thanks for your sharing.

Have a nice day!