Gigabyte GA-IMB410M User Manual - Page 21

BAT Battery, I2C Inter-Integrated Circuit, SMBUS System Management Bus

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23) BAT (Battery) The battery provides power to keep the values (such as BIOS configurations, date, and time information) in the CMOS when the computer is turned off. Replace the battery when the battery voltage drops to a low level, or the CMOS values may not be accurate or may be lost. You may clear the CMOS values by removing the battery cable: 1. Turn off your computer and unplug the power cord. 2. Unplug the the battery cable from the battery cable header and wait for one minute. 3. Plug in the battery cable. 4. Plug in the power cord and restart your computer. •• Always turn off your computer and unplug the power cord before replacing the battery. •• Replace the battery with an equivalent one. Damage to your devices may occur if the battery is replaced with an incorrect model. •• Contact the place of purchase or local dealer if you are not able to replace the battery by yourself or uncertain about the battery model. •• Used batteries must be handled in accordance with local environmental regulations. 24) SMBUS (System Management Bus) This header provides the SMBUS signals. Pin No. Definition 1 SMB_CLK 1 2 SMB_DATA 3 GND 25) I2C (Inter-Integrated Circuit) This header provides the I2C signals. Pin No. Definition 1 1 I2C_SCL 2 I2C_SDA 3 GND - 21 -

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23) BAT (Battery)
The battery provides power to keep the values (such as BIOS configurations, date, and time information)
in the CMOS when the computer is turned off. Replace the battery when the battery voltage drops to a low
level, or the CMOS values may not be accurate or may be lost.
You may clear the CMOS values by removing the battery cable:
1. Turn off your computer and unplug the power cord.
2. Unplug the the battery cable from the battery cable header and wait for one minute.
3. Plug in the battery cable.
4. Plug in the power cord and restart your computer.
•
Always turn off your computer and unplug the power cord before replacing the battery.
•
Replace the battery with an equivalent one. Damage to your devices may occur if the battery is replaced
with an incorrect model.
•
Contact the place of purchase or local dealer if you are not able to replace the battery by yourself or uncertain
about the battery model.
•
Used batteries must be handled in accordance with local environmental regulations.
25) I2C (Inter-Integrated Circuit)
This header provides the I2C signals.
Pin No.
Definition
1
I2C_SCL
2
I2C_SDA
3
GND
1
24) SMBUS (System Management Bus)
This header provides the SMBUS signals.
Pin No.
Definition
1
SMB_CLK
2
SMB_DATA
3
GND
1
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