I think I have found the permanent solution for freezing problems.
Before, I have checked all your solutions without success. My configuration is: Core i5 3570k (no OC), AMD HD7850 2 GB, 2x 4 GB DDR3 1600 Mhz (GoodRAM), SoundBlaster X-fi Platinum, BIOS F18.
The freezing effect on my configuration: random, sometimes once per day, sometimes 1 per hour, screen is frozen, glitchy sound in speakers.
Solution for me: BIOS UEFI Settings, PEG Gen3 Slot Configuration- change from auto to PEG v3 (you should adjust it same as your graphic card is)....
Yeah, that's tricky setting caused all that freezing problems. I hope that Gigabyte Support will read it and change the default setting for this to safe PEG v1 or just fix auto option.
I know what a pain in the ass was that problem, so after discovering this I have decided to register an account here and share this with you guys.