No sound after BIOS update (ASUS P8Z77-V Deluxe)

itsreal

Honorable
Apr 22, 2013
7
0
10,520
I was on Windows 8 when the sound stopped working after the bios update. I then had to format back to windows 7 (for other reasons) but even after the format the sound still isn't working. I rolled back to the previous BIOS version for when it was working but still no luck. I checked the BIOS settings for the onboard audio and its set to enabled. I'm currently on a freshly installed windows 7 with all the latest drivers and still I can't get sound. The headphones are plugged to the usual green port.

specs:
Windows 7 pro 64 bit
ASUS P8Z77-V Deluxe
16 GB DDR3 Ram
Corsair HX750
EVGA GeForce 670 GTX
one monitor
current BIOS vers 1401 (the sound stopped when I upgraded to 1908)