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Description of Change to the Customer:
The IOH component of the Intel® X58 Express chipset is converting from the B-2 stepping to the B-3 stepping. Please plan to validate the B-3 stepping of the Intel® X58 Express chipset. For technical details of the Intel® X58 Express chipset, please refer to the latest Spec Update available on FDBL.
Customer Impact of Change and Recommended Action:
The B-2 stepping of the IOH component of the Intel® X58 Express chipset is pin-to-pin compatible with the B-3 stepping and does not require any motherboard modifications. Design changes, however, have been made to the IOH component of the Intel® X58 Express chipset and will require customers to perform re-qualification. Please see the Intel® X58 Express chipset Spec Update and Intel® X58 Express chipset BIOS Spec Update for any BIOS changes available for the B-3 stepping.