Abit NF-M2SV Installation Manual page 11

• Pins 1 and 2 shorted (Default): Normal operation.
• Pins 2 and 3 shorted: Clear CMOS memory.
To clear the CMOS memory and load in the default values:
1. Power off the system.
2. Set pin 2 and pin 3 shorted by the jumper cap. Wait for a few
seconds. Set the jumper cap back to its default settings --- pin 1
and pin 2 shorted.
3. Power on the system.
4. For incorrect CPU ratio/clock settings in the BIOS, press <Del> key
to enter the BIOS setup menu right after powering on system.
5. Set the CPU operating speed back to its default or an appropriate
value.
6. Save and exit the BIOS setup menu.
CMOS Backup Battery:
An onboard battery saves the CMOS memory to keep the BIOS
information stays on even after disconnected your system with power
source. Nevertheless, this backup battery exhausts after some five
NF-M2P/NF-M2S/NF-M2SV
years. Once the error message like "CMOS BATTERY HAS FAILED"
or "CMOS checksum error" displays on monitor, this backup battery
is no longer functional and has to be renewed.
To renew the backup battery:
1. Power off the system and disconnect with AC power source.
2. Remove the exhausted battery.
3. Insert a new CR2032 or equivalent battery. Pay attention to its
polarity. The "+" side is its positive polarity.
4. Connect AC power source and power on the system.
5. Enter the BIOS setup menu. Reconfigure the setup parameters if
necessary.
CAUTION:
※ Danger of explosion may arise if the battery is incorrectly renewed.
※ Renew only with the same or equivalent type recommended by the
battery manufacturer.
※ Dispose of used batteries according to the battery manufacturer's
instructions.
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