Getting very little sound



All my volumes in the mixer are set to max
 
ok that is perfect. have you hooked up the USB cable to the motherboard for the front panel mic and headphones?

Some front panels even have SATA connection/USB/mic/and headphones. so when you are doing a custom build the cables that attach to the front panel mic and headphone they are inside the case. Find the cables that is inside the case that's for the front panel. Only PUT the USB cable onto the motherboard if you find a SATA cable you do not need to hook that up. So find the USB cable that is attached to the front panel and put it into the motherboard and plug your speakers to the front and see how the volume is put it in the headphone jack, it should be green