Another note I forgot, I have a WD Disk Checker Utilitiy, and I ran MemTest86 both, passed, I spent about 3 hours running Memtest, 3 full passes no errors on neither.
Did you try each module individually? Sometimes, problem modules don't show their problems unless you run it with only one module at a time. However, I don't think that the RAM is the problem. Try updating your motherboard's BIOS.