Ya, the 680i boards are very hit or miss. Either you have no trouble or it burns up in 2 months. After the fact if i had known i would have this many problems with SLI and the 680i board, i would have probably just bought the ultra. I know if the 780i board im getting gives me even the smallest hint of a problem, im going to go back to a single card setup and x38 board whenever the new nvidia cards come out.