MSI H81M-P32L Manual page 24

JBAT: Clear CMOS Jumper
There is CMOS RAM onboard that is external powered from a battery located on the
motherboard to save system configuration data. With the CMOS RAM, the system
can automatically boot into the operating system (OS) every time it is turned on. If
you want to clear the system configuration, set the jumpers to clear the CMOS RAM.
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 motherboard.
JUSB_PW, JUSB_PW2: USB Power Jumper
These jumpers are used to assign which USB and PS/2 ports could support "Wake
Up Event Setup" field of BIOS.
JUSB_PW
(for back panel
USB ports &
PS/2 ports)
JUSB_PW2
(for onboard
USB connectors)

Keep Data

Support

Support
24

Clear Data

No Support (Default)

No Support (Default)