These values will show ALARM even if you do not have any headers on you motherboard. The reason is that is most likely the default setting in the BIOS. Possibly a better version of you motherboard has intrusion detection headers available and there are resettable via the BIOS only.
There is not much you can do to change the values.. as it would defy the purpose of detecting intrusions if it could be disabled by software.. for example. its easier resetting the BIOS password on the motherboard than using software to hack it.. hence.. Intrusion detection cannot be easily reset also.