
The name of the feature you’re looking for varies from manufacturer to manufacturer (and even from model to model) but if your system has it you should be able to easily recognize it when you see it. You didn’t mention the brand and model number of your PC but some models have a UEFI setting that will turn off full-time USB charging and/or enable a “Deep Sleep” mode. But that being said, you might be able to turn it off. This is really nothing to be concerned about since the tiny amount of electricity your mouse uses won’t really affect your electric bill in any meaningful way. That’s why your mouse remains “lit” even when the computer is in “shut down” mode. When this feature is present (and enabled) power will be supplied to the USB ports any time the computer is plugged into an electrical outlet. Rick’s answer: Kelly, many newer desktop PCs (and even a few laptops) have a feature that allows your computer to charge the batteries in connected USB devices even when the computer is completely off. Why is this happening? I’ve never seen it before. When I shut the computer down (not put it to sleep, but actually shut it down) the little light on the mouse stays lit. After the PC restarts your PC should no longer provide USB power when the system is shut down.Question from Kelly E.: I just bought a new computer and there’s one thing about it that has me puzzled. Then go to the Exit tab as shown below to select Save Settings and Reset.


Once within the BIOS, head to the "Advanced" tab and click on "ACPI Configuration."įrom here, change "Deep Sleep" from "Disabled" to "S4+S5 Enabled". To enter your BIOS, you will need to continuously press the Delete or F2 keys when the NZXT splash screen is visible. To disable USB power, firstly, you would need to get into the N7 B550 BIOS, as that is where you can adjust the settings relevant to this.

However, this can cause RGB devices in your approach to remain on if you would like to prevent any lighting devices from staying on when your PC is shut down, this can be disabled. Factory motherboard settings allow USB power to stay on when the system is off this can be useful if you need to charge a device while your PC is shut down. Even when you shut down your PC, keep in mind that your system is still receiving power.
