I have a new Z690 motherboard that I just installed. I noticed that the USB ports still seem to be powered and the LEDs on the motherboard are still active when powered off. Is there any way to change this? I looked in the BIOS but couldnâ€™t find an option.
Look under Advanced/Onboard Devices Configuration. There are options there to control USB power and LED when in sleep/off states.
As it turns out, disabling the USB power doesn't work. I have it disabled, but my USB headphones are still getting power.