MS-6421 Media Center
2-18
Jumpers
The motherboard provides the following jumpers for you to set the computer’s function.
This section will explain how to change your motherboard’s function through the use of
jumpers.
Clear CMOS Jumper: JBAT1
There is a CMOS RAM onboard that has a power supply from 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
JBAT1 (Clear CMOS Jumper ) to clear data.
JBAT1 Keep Data Clear Data
3
1
3
1
3
1
Important
You can clear CMOS by shorting 2-3 pin while the system is off. Then
return to 1-2 pin position. Avoid clearing the CMOS while the system is
on; it will damage the mainboard.
SCART Out Jumper: CN1 & CN2 (for SCART Out board)
The CN1 Jumper determines the aspect ratio of TV display. You can display external
source with 4:3 aspect ratio by shorting 1-2 pin and display external source with 16:9
aspect ratio by shorting 2-3 pin. The CN2 jumper determines the external video source
display. You can display external composite video source by shorting 1-2 pin.
1 3
CN2
1 3
CN1
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