Hardware Installation - Gigabyte MNIC8PI User Manual

20) BAT1 (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.
• 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 bat-
tery 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.
21/22/23/24) COM6/COM3/COM5/COM1 (Serial Port Header)
The COM header can provide one serial port via an optional COM port cable. For purchasing the op-
tional COM port cable, please contact the local dealer.
COM1
COM5
COM3
COM6
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, mak-
ing them short for 5 seconds.)
3. Replace the battery.
4. Plug in the power cord and restart your computer.
1 9
2 10
- 22 -
Pin No. Definition
1 DCD
2 DSR
3 RXD
4 RTS
5 TXD
6 CTS
7 DTR
8 RI/+5V/+12V
9 GND
10 RI/+5V/+12V

Hardware Installation