Sign up to the 'Communities, Developers' forum, they can probably answer both of your queries.
I noticed from your image you are using uPROF software. Best place to post is at Server GURUS which deals with everything to do with uPROF: https://community.amd.com/t5/server-gurus/ct-p/amd-server-gurus
I tagged the Moderator in charge of uPROF project- @swarup
Thank you for posting the query.
IBS might have been disabled by the system/device manufacturer. BIOS is the right place to enable/disable IBS. If you could not locate the BIOS option, you may have to reach out the manufacturer.