Mainboard PI852
8
4.
Smear thermal grease on the top of the CPU. Lower the CPU fan onto the CPU/ socket and secure
it using the attachments or screws provided on the fan. Finally, attach the fan power cord to the
FAN2
header.
FAN Headers: FAN1, FAN2
There are two fan headers available for cooling fans. These cooling fans play an important role in
maintaining ambient temperatures in your system. The FAN2 header is attached with a CPU cooling
fan. The FAN 1header is attached with another cooling fan.
Pin
Assignment
1 Ground
2 Power
(+12V)
3
FAN RPM rate sense
1
FAN2
4
Smart Fan Control
Pin
Assignment
1 Ground
2 Power
(+12V)
1
FAN1
3
FAN RPM rate sense
Attention
DO NOT touch the CPU pins in case they are damaged. Also, make sure
that you have completed all installation steps before powered on the
system. Finally, double-check that the cooling fan is properly installed and
the CPU fan power cord is securely attached, in case your CPU and other
sensitive components are damaged because of high temperatures.
Attention
You can avoid damaging your CPU due to high temperatures with proper
cooling equipment. It is recommended that attach a cooling fan on top of
your CPU. Use the FAN2 header to attach the fan cord.
On most fan power cord, the black wire of the fan cable is the “Ground” and
should be attached to pin-1 of the header.
