Belkin PM11-UL/RAMA User Manual page 38

2
Hardware Installation
2.6.10 CPU Fan Connector
The processor must be kept cool by using a fan with heatsink.
Connect the CPU fan to the 3-pin fan connector at location J18 on
the mainboard. The system is capable of monitoring the speed of the
CPU fan.
38
Pin Function
1 Ground
2 Power
3 Sense
1 2 3
CPU fan
(J18)