Chapter 2: Installation
2-17
Fan Header
Pin Definitions
Pin# Definition
1
Ground
2
+12V
3
Tachometer
4
PWM_Control
Fan Headers
The X9SCV-Q
Motherboard Series
has
three fan headers (Fan1~Fan3). These
fans are 4-pin fan headers. However,
Pins 1~3 of the fan headers are back
-
ward compatible with the traditional 3-pin
fans. (
Note
: Please use
all 3-pin fans or
all
4-pin fans on a motherboard. Please
do not use 3-pin fans and 4-pin fans on
the same board. Refer to the table on the
right for pin definitions.
Note
: The speeds of 4-pin (PWM)
fans are controlled by Thermal
Management via BIOS Hardware
Monitoring in the Advanced Setting.
(The default setting is
Disabled
.)
A
B
Fan2
Fan3
Fan1
A
B
C
C
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