As part of ongoing quality assurance, Intel has discovered a design issue in a recently released support chip, the Intel 6 series, codenamed Cougar Point, and has implemented a silicon fix. In some cases, the SATA ports within the chipsets may degrade over time, potentially impacting the performance or functionality of SATA-linked devices such as hard disk drives and DVD-drives. The chipset is utilized in PCs with Intel's latest second-generation Intel Core processors, codenamed Sandy Bridge. Intel has stopped shipments of the affected support chip from its factories. Intel has corrected the design issue, and has begun manufacturing a new version of the support chip, which will resolve the issue. The Sandy Bridge microprocessor is unaffected and no other products are affected by this issue.
Any major computer upgrade generally requires a full software reinstall too. No so if you heed the advice in the guide to Upgrading a Motherboard without Reinstalling. PCSTATS Tips