Sorry to say, but your post is only a bit better than someone saying, "... my CPU is broken, what's wrong?" The multiplier is stuck where, in the BIOS, in a hardware monitor display, or what? How do you know it is stuck, what seems to tell you that?
Sorry if I was short on info. It is stuck in BIOS. BIOS version 1.80 It is stuck because I am unable to change the setting.