MSI B75IA-E33 Serie Handbuch Seite 24

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.
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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.
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