MSI P4MAM-V User Guide - Page 15

Clear CMOS Jumper: JBAT1, CPU Support Jumper: JP1, IrDA Infrared Module Header: JIR1 Optional - ram

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Page 15 highlights

Clear CMOS Jumper: JBAT1 There is a CMOS RAM on board 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, use the JBAT1 (Clear CMOS Jumper) to clear data. Follow the instructions below to clear the data: 3 3 1 1 1 K ee p Dat a Clear Da ta MSI Reminds You... 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. CPU Support Jumper: JP1 This jumper specifies the mainboard's support for locked or some unlocked CPU. 1 1 1 3 L ock ed CP U 3 Un lo cked CP U IrDA Infrared Module Header: JIR1 (Optional) The connector allows you to connect to IrDA Infrared module. GND NC IR RX 2 6 1 5 NC IRTX VC C5 11

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11
Clear CMOS Jumper: JBAT1
There is a CMOS RAM on board 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, use the JBAT1 (Clear CMOS Jumper) to clear
data. Follow the instructions below to clear the data:
1
3
1
K ee p Da t a
Clear Data
3
1
MSI Reminds You...
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.
CPU Support Jumper: JP1
This jumper specifies the mainboard’s support for locked or some unlocked CPU.
1
1
3
L ock ed CP U
Unlocked CPU
1
3
IrDA Infrared Module Header: JIR1 (Optional)
The connector allows you to connect to IrDA Infrared module.
NC
NC
GND
VC C5
IR RX
IRTX
1
5
2
6