So my headset broke a few days ago and whenever i wanted to plug in my other headset that has 3,5mm jack, none of my slots would work.Also the headset that broke had USB plug.Any ideas how to get all of the 3,5mm slots to work?
Make sure in Control Panel->Sound->Playback your sound card is set as default audio device, it's possible that your previous headset being via USB was recognized as a different audio device and is still set as the default one.
Those shouldn't affect in any case, hmm when you plug in your 3.5mm jacks in the back panel, does a window popup from your VIA drivers asking you what have you exactly plugged in? if so which option do you choose?
If you've changed at BIOS from HD audio to AC93 then you need to install the appropriate AC93 drivers in order to properly function, try that before buying anything else.