5. Hardware Installation
M81E / M81DC2 / M812-FX Series User’s Manual
11
l
l
l
l
l
CPU FAN Connector “J2”
l
This is a 3-Pin connector that support cooling fan of 12 VDC/0.5A or less, when
the system goes into sleep state, fan should be shut down to eliminate audible
noise and reduce power consumption. You can monitor the fan speed by way of
W83627HF LPC I/O chip and the fan must come with a tachometer output.
l
The CPU and motherboard will overheat if there is no air flow across the CPU
and onboard heat sink. Damage may occur to the motherboard and the CPU fan
if these pins are incorrectly used.
l
l
l
l
l
CD-IN Header “J6”
l
J6 is a 4-Pin 2.0mm audio connector. Connect the cable from a slim type
CD-ROM or DVD drive to J6.
Pin
Assignment
1
GND
2
CD-L
3
GND
4
CD-R
1
4
1
3
Pin
Assignment
1
GND
2
+12V
3
Speed/RPM