USB front panel and motherboard USB aren't providing complete power.
USB front panel and motherboard USB aren't providing complete power.
I purchased this PC secondhand during the GPU shortage. It wasn’t often I needed to charge anything, but lately I’ve noticed my devices charge much slower—similar to a 0.5A charger. I’m not expecting 30Watts of power, just enough for about two hours to get 20% on an iPhone. No unusual component labels or branding on the power supply or motherboard. My motherboard is the Maximus Hero 8 i6700k. In short, is it typical for my older board to barely charge anything when plugged into USB? If not, what should I inspect or repair?
These connections typically provide 2.5 watts from USB 2 and 7.5 watts from USB 3.1. They aren't designed for power delivery.
If your front ports are USB 2, that sounds about right. They don't give a lot of power at all and never have. Your board does have a second USB controller on it by Asmedia (according to the manual) and there is a 'battery charging support' option in the BIOS for it. (Advanced -> Onboard Devices Config -> Asmedia 3.1 battery charging support). Usually those ports are denoted by a different colour in the back (it's teal on my Z170-A). Check that option on and give it a try from one of those. It still won't be as fast as your 30W charger but it should be a bit better. If it's already on, that's pretty much the best you're going to get. If your front ports are USB 3 and the board's header connects it off of the asmedia, you should get the 'battery charging support' there too. If they're connected to the chipset USB controller, then you probably won't. One way to tell is to disable all of the asmedia controllers in device manager and see if the front ports work with your mouse, a thumb drive, or something. If it does, then it uses the chipset. If not, then it uses the asmedia.
I changed the bitrate to around 96,000 or 96,000 bps and it’s working now. No hiss and good charging too.