IEI Integration PCIE-Q870-i2 - Manual (Page 38)

PCIE-Q870-i2 PICMG 1.3 CPU Card
Page 21
Figure 3-3: Audio Connector Location
Pin Description Pin Description
1 HDA_SYNC 2 HDA_BIT_CLK
3 HDA_SDOUT 4 HDA_SPKR
5 HDA_SDIN 6 HDA_RST#
7 HDA_VCC 8 HDA_GND
9 HDA_+12V 10 HDA_GND
Table 3-4: Audio Connector Pinouts
3.2.3 Battery Connector
CAUTION:
Risk of explosion if battery is replaced by an incorrect type. Only
certified engineers should replace the on-board battery.
Dispose of used batteries according to instructions and local
regulations.
CN Label: BAT1
CN Type: 2-pin wafer
CN Location: See Figure 3-4
CN Pinouts: See Table 3-5
This is connected to the system battery. The battery provides power to the system clock to
retain the time when power is turned off.