So I didn't have a lot of money but I needed sound ASAP, my onboard sound card doesn't work so I went to buy a cheap second hand sound card. I brought gembird sc-5.1-4 pci-express x1. I just instaled it and added some fans. The think is that when I don't listed to anything, I have a lot of static sound for some reason. Is there a thing I can do? Can it be a power problem, a short circuit on the board? Could it create problems with my pc or something?