Asus Chassis Intrusion Error

[Fordblue625]

Popped the chassis intrusion jumper off my mobo earlier today by accident and now I'm at the end of my rope trying to fix it. I've replaced the jumped, cleared the cmos, removed the mobo battery etc. to no avail. Has anyone encountered this? My bios doesn't have a setting to disable the feature This is on an asus cd5290 with the Rampage II motherboard.