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Sunday, December 11, 2011

Intel Core i7-3960X and i7-3930K CPUs Transitioning to C2 stepping in January

Sandy Bridge-E processors

As previously reported, Intel's first wave of Sandy Bridge-E processors have VT-d (Intel Virtualization Technology for Directed I/O) disabled due to an errata in the C1 stepping. That issue couldn't be resolved in time for the launch but it's getting fixed with the C2 stepping which is set to start rolling out to customers on January 20th, 2012 (samples have already been delivered).

The CPUs moving to the C2 stepping are the hexa-core  (3.3 GHz) and Core i7-3930K (3.2 GHz). Beside the fixed VT-d, the C2 chips will feature new S-spec and MM numbers so a BIOS update for current motherboards will likely be required.



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