Jumper - MSI IM-QM77 User Manual

MS-9899
J
uMper
Clear CMOS Jumper: JCMOS1
There is a CMOS RAM onboard that has a power supply from an external
battery to keep the data of system configuration. With the CMOS RAM,
the system can automatically boot OS every time it is turned on. If you
want to clear the system configuration, set the jumper to clear data.
1
1
1
JCMOS1 Clear CMOS Keep Data(Default)
Important
You can clear CMOS by shorting 1-2 pin while the system is off. Then
return to 2-3 pin position. Avoid clearing the CMOS while the system is
on; it will damage the mainboard.
COM1 Power Select Jumper: J1
This jumper specifies the operation voltage of the rear COM port.
1
1
1
J1 12V
5V (Default)
2-17