Fan Header
PinDenitions
Pin# Denition
1 Ground (Black)
2 2.5A/+16V
(Red)
3 Tachometer
4 PWM_Control
Fan Headers
The X8SIL/X8SIL-F has ve fan headers (Fan1
~ Fan5). These fans are 4-pin fan headers.
However, Pins 1-3 of the fan headers are
backward compatible with the traditional 3-pin
fans. A fan speed control setting in the BIOS
Hardware Monitoring section allows the BIOS
to automatically set fan speeds based on the
system temperature. The default setting is
Disabled which allows the onboard fans to run
at full speed. Refer to the table on the right for
pin denitions.
A
B
A. Fan1
B. Fan2
C. Fan3
D. Fan4
E. Fan5
F. Chassis Intrusion
C
D
E
Chassis Intrusion
A Chassis Intrusion header is located at JL1 on
the motherboard. Attach the appropriate cable
from the chassis to inform you of a chassis intru-
sion when the chassis is opened.
Chassis Intrusion
PinDenitions(JL1)
Pin# Denition
1 Intrusion Input
2 Ground
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.