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Intel Corp. has published a product change notification (PCN) document concerning its 8-series chipsets that will support Intel Core i “Haswell” central processing units (CPUs). According to the paper, the company has already fixed the previously discovered USB 3.0 issues and is currently preparing the new stepping of core-logic for mass production. Intel will be ready to ship the fixed version this Summer.

Intel is initiating a C1 to C2 stepping conversion for the Intel 8-series/C220-series chipsets. C2 stepping has a metal layers change to fix the USB SuperSpeed device remuneration erratum. The C2 stepping of the Intel 8/C220 chipsets is pin-to-pin compatible with the C1 stepping and does not require any motherboard modifications. Based on USB SuperSpeed design fix implementation there is no need for full electrical regression testing, so hardware makers can install the new chipsets on existing designs. Customers may perform a limited USB SuperSpeed regression by checking a small subset of bulk, periodic and isochronous device types against customer’s existing USB3 validation tests focusing on S3/U3 cycles.

Intel will start to provide samples of 8-series/C220-series chipsets C2 stepping to customers starting from April 19, 2013. The first shipments of the fixed chipsets will begin on July 15, 2013.

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