Newegg reviews show a large number of those with your experience. RMA the board and go for another make or model. Also, when I first boot a new build, I always boot at stock settings into memtest86+, using a bootable CD image available on the memtest86+ page here. I do that because today's high-performance RAM can be a real problem - if it's not good, I want to know it before I start loading OS, and actually try to use the machine.
okay, I wasn't up to snuff on all the numbers, and codes for the Gigabyte boards. I wouldn't mind getting something solid, and dependable. What I don't want to have to do, is do this all over again in 9 mos.