Help with Changing AGP Speed to x8

Call me stupid, but I've been out of the loop for a year+.
My specs below are current and BOIS & video drivers are up-to-date.
My problem is I cannot use AGP x4 or x8.
I remember this feature being dependent on the BIOS settings, but I can figure out how to set my AGP speed
Thank you,
Joe
My specs below are current and BOIS & video drivers are up-to-date.
My problem is I cannot use AGP x4 or x8.
I remember this feature being dependent on the BIOS settings, but I can figure out how to set my AGP speed
Thank you,
Joe