Raymond Chen recently posted about 386 B1 problems. In the end Microsoft decided not to support it. I imagine most early 386 chips just ran 16-bit MS-DOS code.

Raymond Chen recently posted about 386 B1 problems. In the end Microsoft decided not to support it. I imagine most early 386 chips just ran 16-bit MS-DOS code. Raymond's article: http://blogs.msdn.com/b/oldnewthing/archive/2011/01/12/10114521.aspx http://blogs.msdn.com/b/oldnewthing/archive/2011/01/12/10114...