sound stopped working completely, headphones and speakers

Ok guys this problem happened last march/april ish and I tried a number of things at the time to fix the issue but with no luck. I just got done working out of state for the summer and did not have my pc with me so I'm trying to have another go at fixing the problem. Summary of the issue- no problems ever with sound until one day it just stopped working. Both headphones and speakers wouldn't work even if they were plugged in. I wasn't getting any "no audio devices detected" kinds of errors or anything like that. So I tried reinstalling the realtek HD audio drivers (i was just using onboard sound at the time) and no luck. I also tried doing a few system restores to before the issue and that didn't do anything either. Finally I bought a pci-e sound card, a sounblaster cause thats all the local best buy had, installed that and still no luck with either speakers or headphones. Today I tried removing the sound card and using on board audio and still no luck. Audio device manager will recognize that I plug in my headphones into either the front speaker jack or the one on the back but just doesn't produce sound. I even opened up the pc and looked at the connections on the mobo to make sure the ones for audio hadn't come lose and that doesn't seem to be the issue either. Please any help would be greatly appreciated!! Thanks in advance

Tried disabling all the realtek playback options and i'm plugging directly into the sound card, still no luck.

here's a screenshot of my device manager after disabling everything except the sound blaster options