My Computer keeps immediately turning back on after a full shutdown after plugging in a USB 3.0 PCIE accessory

Posted by Illusional_@reddit | buildapc | View on Reddit | 10 comments

This issue has been plaguing me for a while now, and trying to find a solution has been a nightmare.

So basically, about 2 months ago I bought a PCIE accessory to add some USB 3.0 Slots to my rig as I needed more 3.0 slots. I noticed that after plugging in the accessory, my computer wouldn't shut down anymore. If I try and shut it down from within the computer in any way, it just boots back up immediately. The only way I'm able to turn it off is by holding down the power button for a few seconds, which is an issue especially being that I tend to shut my computer off remotely when streaming to my steam deck.

I've tried turning off fast startup mode in windows, doing that initially just caused my system to fail to boot and it reset my BIOS. The setting is still off after getting back in, and my computer is booting fine, but the issue at hand is still happening. I also tried to enable ErP on my motherboard and that also did nothing for me.

Really trying anything I can to keep the USB slots, is there anything else I can tinker with to get this to stop happening?