Signal name, Sys_fan1: system fan power connector, Nb_fan1: northbridge fan power connectors – Intel MB898F User Manual
Page 24: J1: audio front header, J2: hdmi audio connector
INSTALLATIONS
SYS_FAN1: SYSTEM Fan Power Connector
Pin #
Signal Name
1 Control
2 Sense
3 +12V
4 Ground
NB_FAN1: Northbridge Fan Power Connectors
Pin #
Signal Name
1 Sense
2 +12V
3 Rotation
detection
J1: Audio Front Header
Signal Name
Pin #
Pin #
Signal Name
MIC2_L 1 2 Ground
MIC2_R 3 4 Presence#
Line2_L 5 6 MIC2_ID
Sense 7 8 NC
Line2_R 9 10 Line2_ID
J2: HDMI Audio Connector
J2 is a HDMI Audio connector. The following table shows the pin-out
assignments of this connector.
Signal Name
Pin #
Pin #
Signal Name
BITCLK 1 2 GND
ACZ_RST 3 4 VCC3
ACZ_SYNC
5 6 GND
SDOUT 7 8 VCC3
SDIN0 9
10 +12V
SDIN1 11
12 NC
SDIN3 13
14
3VDUAL
SDIN2 15
16 GND
20
MB898 User’s Manual