In my device manager I have an "Unknown Device" and I have no idea what it could be. The only hardware slotted into the motherboard are the sound and graphics cards, which are both installed properly with their drivers, and they both work properly too without errors. I think it might somehow be related to my failing USB (all USB slots on my motherboard are dead, even new ones that I put in, USB controler chip is dead or something). Does anyone have any ideas what it could be? Thanks.