DG31PR back door password

[rsfy0]

(DG31PR)does this model of M.b have a back door pass, pls i forgot my pass and cant open my pc case​ for jumper...

[AlHill]

It would not be very secure if there was a published back door.

Why can you not open the case?

Use this procedure to reset the bios password:

https://www.intel.com/content/www/us/en/support/articles/000005690/boards-and-kits/desktop-boards.ht...

Doc