[NUC] How to disable USB port power delivery when the PC is Off
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NUC products offer various control for the USB port power delivery.
You can disable power delivery to all USB ports while the PC is off by enabling Deep Power Saving Mode. Please note that once this feature is activated, the system will consume less power in S4/S5 states (while turned off), and as a result, the system can only be turned on by the power button or RTC alarm. LAN wake might be available in some products. All other wake methods will be disabled.
To enable Deep Power Saving Mode, please follow the steps below:
1. Press power button to turn on the system, and, press the F2 key immediately to access the BIOS setup menu.
2. Navigate to Power, Performance and Cooling. (or Power menu in some products)
3. Go to Secondary Power Settings.
4. Check the box for Deep Power Saving Mode (Pseudo G3) (or Deep S4/S5 in some cases).
5. Press F10 to save the BIOS settings.
You can enable/disable USB type-A port power delivery when the PC is off by enabling/disabling USB S4/S5 Power. Note that the USB-C and USB charging ports will supply power regardless of USB S4/S5 Power setting.
To modify USB S4/S5 Power setting, please follow the steps below:
1. Press power button to turn on the system, and press the F2 key immediately to access the BIOS setup menu.
2. Navigate to Power, Performance and Cooling. (or Power menu in some products)
3. Go to Secondary Power Settings.
4. Check or uncheck the box for USB S4/S5 Power to enable or disable USB S4/S5 power.
5. Press F10 to save the BIOS settings.