Originally Posted by Catscratch
There's also the possibility that it just can't handle an overclocked 6 core.
Take a look at here.
He seems to solve it by setting the fans as intake, so getting cold air from outside. He also has better fans.
I don't know why on earth corsair recommended these things be set up to take in HOT AIR from the inside of the case and blow it over the radiator in order to COOL the processor. Seems a bit backwards to me huh? Everyone reading this needs to immediately reverse their setups if need be, to take in cold air from the outside.
Could be your problem.