Chito123 - That Corsair memory you listed is
Triple Channel ddr3, the core i5/i7 8xx only supports
dual channel ddr3, one of the differences which makes them the more mainstream processor. You have to be careful when choosing parts for the core i7's b/c the i7 9xx are slightly different than the i7 8xx.
With that being said, I don't know whether or not the triple channel memory would fail to work on a lga 1156 board (i5/i7 8xx), but it would only work as single channel.
BritMatt - That Crucial ram is the same ram that everyone is having problems with this mobo. Probably a bad batch or just incompatible, but since we can't get to the bios to update it, we are all SOL if it is just incompatible.
You have seen the thread Paul Proteus linked to at anand, right? I think that explains everything. Switched the ram and the board worked "like a charm."