MSI B75MA-E31 series User Manual page 21

MS-7808
JAud : Front panel Audio Connector
this connector allows you to connect the front audio panel located on your com-
puter case. this connector is compliant with the intel Front panel i/o Connectivity
®
design guide.
JCi: Chassis intrusion Connector
this connector connects to the chassis intrusion switch cable. if the computer
case is opened, the chassis intrusion mechanism will be activated. the system
will record this intrusion and a warning message will flash on screen. to clear the
warning, you must enter the BioS utility and clear the record.
JBAt: Clear CMoS Jumper
there is CMoS rAM onboard that is external powered from a battery located on
the mainboard to save system configuration data. With the CMoS rAM, the sys-
tem can automatically boot into the operating system (oS) every time it is turned
on. if you want to clear the system configuration, set the jumper to clear the CMoS
rAM.
keep data Clear data
iMportANt
you can clear the CMoS rAM by shorting this jumper while the system is off.
Afterwards, open the jumper . do not clear the CMoS rAM while the system is on
because it will damage the mainboard.