Gigabyte GA-A75N-USB3 - Battery; System Power LED Header

- 23 - Hardware Installation
You may clear the CMOS values by removing the battery:
1. Turn off your computer and unplug the power cord.
2. Gently remove the battery from the battery holder and wait for
one minute. (Or use a metal object like a screwdriver to touch
the positive and negative terminals of the battery holder, making
them short for 5 seconds.)
3. Replace the battery.
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. Danger of explosion 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.
When installing the battery, note the orientation of the positive side (+) and the negative side (-) •
of the battery (the positive side should face up).
Used batteries must be handled in accordance with local environmental regulations. •
7) BAT (Battery)
The battery provides power to keep the values (such as BIOS congurations, 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.
System Status LED
S0 On
S3/S4/S5 Off
Pin No. Denition
1 MPD+
2 MPD-
3 MPD-
6) PWR_LED (System Power LED Header)
This header can be used to connect a system power LED on the chassis to indicate system power status.
The LED is on when the system is operating. The LED is off when the system is in S3/S4 sleep state or
powered off (S5).
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