MSI P45 NEO-F User Guide - Page 35

Jumpers - overclocking

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Page 35 highlights

Hardware Setup Jumpers Clear CMOS Jumper: JBAT1 There is a CMOS RAM onboard that has a power supply from an 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 jumper to clear data. 3 3 1 JBAT1 1 Keep Data 1 Clear Data 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. Hardware Overclock FSB Jumpers: JB1, JB2 You can overclock the FSB to increase the processor frequency by changing the jumpers JB1 and JB2. Follow the instructions below to set the FSB. JB2 1 JB1 1 3 JB2 JB1 Default 1 3 1 3 1 3 1 3 200->266 MHz 200->333 MHz 266->333 MHz 200->400 MHz 266->400 MHz 333->400 MHz Important 1. Make sure that you power off the system before changing the jumpers. 2. Overclocking may cause instability or crash during boot, then please restore the jumpers to default. 2-19

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2-19
Hardware Setup
Jumpers
Clear CMOS Jumper: JBAT1
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 auto-
matically boot OS every time it is turned on. If you want to clear the system configuration,
set the jumper to clear data.
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.
JBAT1
1
Clear Data
3
1
Keep Data
3
1
Hardware Overclock FSB Jumpers: JB1, JB2
You can overclock the FSB to increase the processor frequency by changing the
jumpers JB1 and JB2. Follow the instructions below to set the FSB.
1
JB1
JB2
Default
1
3
1
3
1
3
1
3
200->266 MHz
200->333 MHz
200->400 MHz
266->400 MHz
333->400 MHz
1
3
266->333 MHz
JB1
JB2
Important
1. Make sure that you power off the system before changing the jumpers.
2. Overclocking may cause instability or crash during boot, then please
restore the jumpers to default.