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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. W ith 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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