TYAN Thunder n6550EX Manual page 15

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J1/J3/J4/J5/J6/J7/J32/J34/J36/J37: 4-pin fan connector
NOTE: When using the 3-pin fans, you will have no auto fan
functionality.
J8: PSMI Header
Pin
Signal
Pin_1
J9: Front panel Header for Barebones Systems
J18: LCM Pin Header
Use this header to connect to the LCM module with system
monitoring function.
Pin
Signal
Pin_1
1
SMBUS
SMBUS
CLOCK
DATA
Signal
LAN1_LED+
LAN2_LED+
LAN3_LED+
ID_LED+
ID_S/W+
Key
Signal
VCC_5_RUN
KEY PIN
VCC_5_ALW
9
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1
2
GND
+12V
TACH
2
3
RSVD
GND
(NC)
Pin
Pin
1
2
3
4
5
6
7
8
9
10
11
12
Pin
Pin
1
2
3
4
5
6
3
4
PWM
4
5
VDD_3P
3_DUAL
Signal
LAN1_LED-
LAN2_LED-
LAN3_LED-
ID_LED-
ID_S/W-
RSVD
Signal
RXD
GND
TXD

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