Gigabyte H310M HD2 2.0 - Page 17

13) 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.
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. 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.
• 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.
11) LPT (Parallel Port Header)
The LPT header can provide one parallel port via an optional LPT port cable. For purchasing the optional
LPT port cable, please contact the local dealer.
Pin No. Denition Pin No. Denition Pin No. Denition
1
STB-
10
GND
19
ACK-
2
AFD-
11
PD4
20
GND
3
PD0
12
GND
21
BUSY
4
ERR-
13
PD5
22
GND
5
PD1
14
GND
23
PE
6
INIT-
15
PD6
24
No Pin
7
PD2
16
GND
25
SLCT
8
SLIN-
17
PD7
26
GND
9
PD3
18
GND
DEBUG
PORT
G.QBOFM
1
226
25
12) COMA/COMB (Serial Port Header)
The COM header can provide one serial port via an optional COM port cable. For purchasing the optional
COM port cable, please contact the local dealer.
1
2
9
10
Pin No. Denition Pin No. Denition
1 NDCD- 6 NDSR-
2 NSIN 7 NRTS-
3 NSOUT 8 NCTS-
4 NDTR- 9 NRI-
5 GND 10 No Pin
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