I understand that you are inquiring about the usage of the Intel(R) Xeon(R) processors on the Intel(R) Desktop Board DQ77KB with revisions lower than 401.
In regards to your inquire, the list of compatible processor is accurate and it states that the minimal revision is 401, you shouldn't worry about getting one lower than that as the initial retail release was version 401 so there is no way that you get a retail version that is lower or older.
Thanks so much! The bit of information that was not clear was that the revision number refers to "minimal revision". My reading on it was that only the -401 boards would work, and later updates were not supported.
Thanks again for your time!
Is there a 403 revision of this board then as i thought they was all 01 ?