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Connectors, Jumpers and Switch
1230B0049401
3-18
3.15 System Fan Board Connector (J9)
The system fan board connector and the pin definition are shown below:
Figure 3-17 System Fan Board Connector
Table 3-17 System Fan Board Connector Pin Definition
Signal Name
Pin
Pin
Signal Name
BMC_FAN_TACH_SEL0 1 2 BMC_FAN_TACH_SEL1
FAN_BMC_TACH1
3 4 FAN_BMC_TACH2
FAN_BMC_TACH3
5 6 FAN_BMC_TACH4
FAN_BMC_TACH5
7 8 FAN_BMC_TACH6
FAN_BMC_TACH7 9
10
FAN_BMC_TACH8
FAN_CNTR_PWM1
11 12 FAN_CNTR_PWM2
I
2
C_SCL_FAN_CNTR_R
13 14 I
2
C_SDA_FAN_CNTR_R
5V_DUAL
15 16 +3.3V
+12V
17 18 I
2
C_ALERT_FAN_N
+12V
19 20 +12V
+12V
21 22 +12V
+12V
23 24 +12V
+12V
25 26 +12V
+12V
27 28 +12V
+12V
29 30 Ground
Ground
31 32 Ground