How to keep usb ports delivering power while pc asleep

Question

My usb ports wont charge things when pc is in sleep mode. I have tried:

disableing usb selictive suspend

unckecking the power thing in universal serial bus controllers

disableing erp in bios

I have a asus b650-e wifi motherboard

Answer 1

Hello J_9475,

Welcome to the Microsoft Community.

Your question requires to confirm whether the motherboard supports such feature. We tried to search for some technical information about your Asus B650-e motherboard, and it seems that the answer is Yes, the ASUS B650-E motherboard supports USB charging in sleep mode, but this feature may depend on specific settings in the BIOS and the type of USB port you're using.

Below are some key points:

Disclaimer:  If you are going to modify BIOS Settings, please back up all your personal files first to ensure you do not lose data.  

1. USB Charging in Sleep Mode:
   • Many modern ASUS motherboards, including those in the B650 series, support USB charging even when the system is in sleep mode or powered off. This feature is often referred to as "USB Power Delivery in S5" or "USB charging in standby".
2. BIOS Settings:
   • To enable or ensure USB charging in sleep mode, you may need to check your BIOS settings. ASUS motherboards typically have options like "ErP" or "USB Power Delivery in Sleep Mode" that control whether power is supplied to USB ports while the system is off or in a low-power state (S3/S4).
     • ErP (Energy-related Products) settings can sometimes limit power delivery to USB ports in sleep mode. You may need to disable ErP in the BIOS for charging to continue while the system is in sleep.
     • Look for "USB Charging in Sleep Mode" or "Onboard USB power" settings in the BIOS and enable them if they're available.
3. USB Ports:
   • Some specific USB ports (like USB 3.0/3.1/3.2 ports) and USB-C ports may support charging in sleep mode. Make sure that the device you are trying to charge is connected to a port that supports this feature.
4. Motherboard Specifics:
   • The ASUS B650-E motherboard may also feature a "USB BIOS Flashback" or "USB Charger+" feature (check the exact model's documentation), which could also enable charging functionality when the PC is in a low-power state.

How to Enable USB Charging in Sleep Mode:

1. Enter BIOS: Restart your computer and press the Del key (or the key specified by ASUS) to enter the BIOS setup.
2. Find USB Settings:
   • Look for Advanced or Power options in the BIOS.
   • Check for options like USB Power Delivery in Sleep or Onboard USB Charging and enable them.
3. Disable ErP (if applicable):
   • If there is an ErP setting under Power settings in BIOS, try disabling it to allow power to the USB ports while the system is off or in sleep mode.

Conclusion:

Yes, the ASUS B650-E motherboard supports USB charging in sleep mode, but it requires the correct BIOS settings. Make sure USB charging settings are enabled, and if needed, disable ErP to ensure USB ports provide power even when the system is in sleep mode.

If you meet some problems modifying the BIOS settings, you may want to give us some photos about the specific options you see in BIOS. Or you can consider the better option, to contact Asus support for more professional advice!

Best Regards,

William.Y | Microsoft Community Support Specialist

Answer 2

With all of that it still didn't work. I did not see "USB Charging in Sleep Mode" or "Onboard USB power" in BIOS.