Connectors and Jumpers
1230B0026301
3-17
3
3
.
.
1
1
5
5
F
F
a
a
n
n
P
P
o
o
w
w
e
e
r
r
/
/
F
F
a
a
n
n
T
T
a
a
c
c
h
h
C
C
o
o
n
n
n
n
e
e
c
c
t
t
o
o
r
r
(
(
J
J
9
9
9
9
)
)
The fan power/fan tach connector and the pin definition are shown below:
Figure 3-17 Fan Power/Fan Tach Connector
Table 3-15 Fan Power/Fan Tach Connector Pin Definition
Signal Name
Pin
Pin
Signal Name
BMC_FAN_TACH_SEL0
1 2 BMC_FAN_TACH_SEL1
Stand By +3.3V
3
4
Stand By +3.3V
Stand By +3.3V
5
6
Stand By +3.3V
Stand By +3.3V
7
8
Stand By +3.3V
Stand By +3.3V
9
10
Stand By +3.3V
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
Ground
33 34
Ground