Just got a wireless keyboard, and I'm fully charging it through a USB port on my PC before use. Would it make a difference if my PC is in sleep mode?
I don't believe I've changed the USB settings in the BIOS. The keyboard charges when my computer is in sleep mode, but not when it's fully powered off.It should not make a difference unless your BIOS is configured to turn off USB charging when the computer sleeps or is turned off. By default it should not be configured that way IF your board even has that configuration setting in the BIOS.
I have the MSI X570 Gaming Pro CarbonThen there shouldn't be any difference when it's on or sleeping.
What is the model of your device or motherboard?