Now this board does have issue's with quad core's and IMHO it is the 4 pin CPU power socket that is to blame, it just does not pass enough power
for a highly optimized quad
If you really want a good quad board and must have SLI then your only options are ether an SLI hack or find an EVGA 750iFTW or 780iFTW board
another problem is my RAM not being able to run at full capability due to the restriction on ram speed. not entirely happy with this board but it works and supports my sli!