> To be more exact, Rev. B2 of Opteron 2350 - is it for CPU stepping w/error or > w/o error ? AMD, like Intel, does a reasonable job of disclosing such info: http://www.amd.com/us-en/assets/content_type/white_papers_and_tech_docs/41322.PDF the well-known problem is erattum 298, I think, and fixed in B3.